Plastic Factory Fires and the Conditions That Make Each Shift Safer

 Plastic Factory Fires and the Conditions That Make Each Shift Safer

 

HSE-RM SOLUTIONS | 5 November 2026

 

Lessons from plastics manufacturing and recycling incidents, with a practical approach to hazard identification, daily operations and fire investigation.

 

A plastics factory can complete hundreds of production shifts without a fire while unsafe conditions gradually develop.

 

Scrap accumulates beside a machine. A recurring trip becomes routine. A change in material grade is not reflected in the operating instructions. Finished stock occupies a passage that was intended to remain clear.

 

The absence of an incident does not demonstrate that these conditions are controlled.

 

For management, the daily question is: What must remain true for this plant to operate safely today?

 

After a fire, the investigation asks a related question: Which condition changed, what happened next, and why did the available safeguards fail to prevent harm?

 

Historical incidents help us ask better questions. They also show why a familiar explanation such as “short circuit” should be tested against evidence.

 

The Sarigam fire and the limits of the available information

Gujarat Samachar reported a fire at Tibrewal Plastic Pvt. Ltd., Sarigam Industrial Estate, on the night of 3 November 2026. Teams from Sarigam, Vapi and Umargam reportedly controlled it after approximately three hours. No casualties were reported. The report published on 4 November stated that the cause was unknown and forensic findings were awaited. (News Report: https://english.gujaratsamachar.com/news/valsad/fire-breaks-out-at-sarigam-industrial-estate-company-in-umargam-firefighters-control-blaze-after-three-hours-58842148858#google_vignette)

 

The report does not establish the first equipment or material ignited, the operating activity at the time, or the factory's precise process and inventory. The firefighting duration also does not establish the time between ignition, detection and notification.

 

The discussion below therefore concerns hazards in plastics processing and recycling generally. It does not attribute a particular failure to Tibrewal Plastic.

 

What the history of similar operations teaches us

 

West Pharmaceutical Services in 2003

On 29 January 2003, an explosion and fire at West Pharmaceutical Services in Kinston, North Carolina, killed six people and injured 38. This was a rubber medical-component manufacturer using fine polyethylene powder, rather than an ordinary plastics moulding or recycling factory.

 

The US Chemical Safety Board identified accumulated polyethylene dust above a suspended ceiling as the fuel for the destructive explosion. Dust had migrated into concealed spaces even though visible work areas received housekeeping attention. The exact initiating event could not be determined conclusively.

 

The investigation led to recommendations on engineering assessment, dust control and communication of material hazards. (Report: https://www.csb.gov/in-final-report-on-west-pharmaceutical-explosion-csb-finds-inadequate-controls-for-dust-hazards-calls-on-north-carolina-to-strengthen-fire-code-on-combustible-dust/?F_All=y&SID=1)

 

The transferable lesson is material-specific: a polymer in fine powder form can present a different hazard from a finished solid product. A clean floor does not establish that overhead spaces or extraction systems are free of dangerous accumulation.

 

Family Plastics in 2018

The fire at Family Plastics and Thermoware, Manvila, Kerala, on 31 October 2018 initially drew attention to storage and fire spread. Later reporting recorded a materially different ignition account: police arrested two employees on allegations of deliberately setting plastic material alight. CCTV and witness evidence formed part of the investigation. These were reported police findings and allegations, not a court determination presented here. (Police Report: https://www.thenewsminute.com/kerala/2-workers-arrested-setting-fire-thiruvananthapuram-plastic-godown-91369)

 

Reporting also attributed severe fire spread and firefighting difficulties to the storage arrangements. (News Report: https://timesofindia.indiatimes.com/city/thiruvananthapuram/2-employees-held-in-plastics-factory-fire-incident-at-manvila/articleshow/66566652.cms)

 

This case separates two questions that are often merged: what started the fire, and what allowed it to become so destructive? Security, access control, storage and fire separation can all matter, even when a machine defect is not established as the initiating event.

 

Kasna in 2022

Kasna, November 2022: Fire officials relayed workers' accounts linking ignition to ground-floor power-panel testing. (Report: https://www.hindustantimes.com/cities/noida-news/fire-breaks-out-at-plastic-factory-in-greater-noida-101669548485228.html)

 

The practical issue is the work activity. Electrical testing needs its own assessment of exposure, surrounding combustibles, competence and controls. Normal production instructions do not automatically cover testing or fault-finding. Work should be planned de-energised wherever practicable; necessary energised testing requires specific precautions and competent personnel. (Ref. Reading Material: https://www.hse.gov.uk/pubns/priced/hsg85.pdf)

 

RMS Plast in 2026

A fire at RMS Plast, a waste-plastic-to-granules operation in Udhna, Surat, occurred on 19 January 2026. Subsequent reporting recorded four worker deaths.

 

The published cause accounts differ. The Indian Express on 28 January quoted police attributing ignition to a short circuit involving plastic waste. The Times of India on 30 January described an overheated plastic crusher and an explosion, followed by ignition of nearby waste. The latter also reported congested conditions, difficulties escaping and the sealing of the premises.

 

A technical review should not combine these accounts into an invented sequence or select one because it fits a preferred explanation. The underlying investigation records are needed to reconcile them.

 

Both accounts justify examining machinery, electrical installations, surrounding waste and worker escape arrangements. They do not establish the mechanism of the Sarigam fire.

 

These selected cases illustrate credible scenarios; they cannot establish which ignition source is statistically most common across the plastics industry.

 

The major challenges in plastics facilities

Material variability changes the assessment

“Plastic” is not a complete material specification. Polymer type, grade, additives, contamination and physical form affect processing and fire behaviour. Pellets, films, powders, foam, finished components and mixed scrap require different assessments.

 

In heated processing, temperature and the time material remains hot both matter. An approved temperature for one grade cannot automatically be transferred to another. Operators need an approved material list, reliable identification and a defined response when a feedstock falls outside that list.

 

Production and combustible storage compete for space

Raw material, work in progress, packaging, rejected products and scrap can gradually fill the production floor. This increases the opportunity for a local ignition to involve more fuel and can obstruct escape or emergency access.

 

Set storage boundaries and inventory limits around the actual layout and protection design. Review them when production or warehousing arrangements change.

 

Foamed and other cellular plastics deserve particular attention. (Ref. on Cellular Plastics : https://www.hse.gov.uk/plastics/fire-safety.htm)

 

Heat and friction are part of normal operations

Extrusion and moulding require heat. Grinding and conveying require mechanical work. Hazard identification must distinguish controlled operation from deviations such as stalled flow, abnormal residence time, heater-control failure, bearing deterioration or a jammed rotor.

 

A high temperature alone does not prove ignition. The investigation must connect the actual conditions to a combustible material and a credible ignition mechanism.

 

Dust can develop outside the main process

Where cutting, grinding, powder handling or conveying generates fines, establish whether the dust is combustible and whether an explosible cloud can form. Examine extraction equipment and concealed surfaces as well as accessible floors.

 

Not every plastics operation has a dust-explosion hazard. Where it exists, housekeeping alone may be insufficient; dust containment, ignition control and appropriate explosion protection or isolation require competent engineering assessment.

 

Nonroutine work changes the exposure

Cleaning, purging, clearing blockages, electrical testing, mould changes and repair can expose workers to conditions absent during normal operation. These activities may involve hot material, stored pressure, moving machinery or electricity.

 

Human presence increases the number of people exposed. Workers also provide essential observations about abnormal noise, recurring trips and unfamiliar material. An effective system gives them clear instructions, competent support and authority to stop and report concerns.

 

Hazard identification through Process Equipment Activity and Human factors

HSE-RM SOLUTIONS recommends examining each operating area through four connected perspectives:

Perspective	Questions that make the assessment useful
Process	What material is present? What temperature, pressure, flow and residence-time limits apply? What happens if they are exceeded?
Equipment	Which heaters, drives, electrical circuits, cooling systems and protective functions keep conditions controlled? How is their condition verified?
Activity	What changes during startup, shutdown, cleaning, testing, maintenance, storage or dispatch?
Human	Who is exposed? What must they recognise and do? Are instructions, competence, staffing and escape arrangements adequate?

 

These questions turn a generic hazard list into a description of an event that could occur and the safeguards that should prevent it.

 

For example, “extruder fire” is too broad. A useful scenario identifies the material, a credible interruption or heating fault, the resulting condition, the potential first fuel and the required detection and shutdown response.

 

Ignition sources that require practical controls

 

The following is a screening framework, not a finding about any of the named factories.

Potential source	Credible fuel or exposure	Controls to evaluate
Electrical overheating or arcing	Cable insulation, plastic waste and nearby stock	Correct loading and protection, competent inspection, sound connections and separation from combustibles
Heaters and hot process surfaces	Deposits, leaked polymer, packaging or contaminated surfaces	Material-specific limits, suitable overtemperature protection, inspection and controlled cleaning
Bearings, drives and grinders	Feed material, fines and accumulated waste	Condition checks, jam response, suitable feed control and preventive maintenance
Welding, cutting and grinding	Stock, hidden residues and adjacent combustible areas	Alternatives to hot work, isolation, combustible control, permits and a suitable fire watch
Static discharge	Combustible dust or flammable vapour where present	Material-specific assessment, suitable transfer equipment and verified bonding or earthing where applicable
Vehicles, charging and external activity	Stored goods, waste and adjacent exposures	Designated locations, suitable equipment, maintenance, housekeeping and access control

 

Ignition-source assessment should include mechanical equipment and temporary activities, not just electrical panels. Hazardous-area equipment requirements depend on whether a relevant explosive atmosphere can occur.

 

Static controls must account for insulating materials; earthing a metal frame does not necessarily remove charge from a plastic product or dust.

 

Where hot work could encounter flammable vapours, use suitable atmosphere testing and consider connected equipment and adjacent spaces. A permit is useful only when its precautions are implemented.

 

Keeping each shift within a safe operating state

No checklist guarantees an incident-free day. A practical system makes operating conditions visible, assigns responsibility and defines what happens when a critical condition is lost.

 

Before starting

The shift lead should review outstanding defects with operators and maintenance personnel. Confirm the approved material, machine readiness, required cooling or extraction, protective-system status, storage boundaries and available escape routes.

 

For each significant process, maintain a short operating sheet containing the approved limits, how they are checked, the response to deviation and the person authorised to approve a restart. Limits must come from competent process and equipment assessment, not generic figures copied from another plant.

 

A scheduled functional test is different from a daily status check. Do not instruct operators to defeat guards or create dangerous conditions to demonstrate a trip.

 

During production

Record and investigate abnormal conditions, including repeated trips, unusual fume, increasing motor current, unexpected vibration, hot bearings, leakage and accumulating scrap.

 

A reset should not become the normal response to a recurring alarm. Operators need to know which conditions permit adjustment and which require a controlled stop, isolation or escalation.

 

Check the workplace as it changes during the shift. A clear aisle at the morning inspection can become obstructed by afternoon dispatch.

 

During breakdowns and maintenance

Stop and isolate hazardous energy before intrusive work, including electrical, hydraulic, pneumatic, mechanical and thermal energy as applicable. Account for stored pressure and residual heat. Follow the equipment-specific method before clearing jams or opening guarded areas.

 

Coordinate maintenance with nearby production. Changes to protective settings, material grades, extraction, heaters or machine capacity need review before return to service.

 

At shutdown and handover

 

Confirm the prescribed cooling, purging and shutdown sequence. Remove waste, close work permits and communicate unresolved defects and any authorised impairment.

 

Do not isolate essential fire protection or prematurely stop cooling merely because production has ended. Where a process continues unattended or with reduced staffing, the assessment must address detection, remote notification, shutdown capability and response resources.

 

Loss of a required condition	Expected response
Unidentified or unapproved material	Hold the material for review before processing
Critical guard, trip or protective function unavailable	Hold the affected operation until the required protection is restored and verified
Repeated overload, jam or unexplained temperature excursion	Stop as prescribed and establish the cause before restart
Required cooling or extraction unavailable	Follow the defined safe shutdown or interruption procedure
Exit or emergency access obstructed	Restore access immediately and assess whether affected work must pause
Smoke, fire or imminent danger	Raise the alarm, evacuate and obtain emergency assistance; isolate only where safe and authorised

 

Management should verify that defects are closed and repeated problems trigger wider corrective action.

 

Prevention and fire protection must work together

Control ignition and fuel accumulation, while retaining detection, alarm, suitable suppression, separation and evacuation arrangements. Preventive controls can fail.

 

Protection design must consider the actual commodity, packaging and storage arrangement. Installed sprinklers or hydrants do not by themselves demonstrate adequate performance, and a change in stock or storage height may require review. Appropriate sprinkler design and water-supply evaluation should follow the applicable design basis.

 

Fire-equipment impairments require a defined response, responsible person and restoration plan. Workers should not be expected to compensate for inadequate protection by attempting hazardous firefighting.

 

The questions that make a post incident investigation useful

 

Establish the sequence before selecting a cause

Separate the first observation from the first ignition. Someone seeing flames beside a machine does not establish that the machine initiated the event.

 

Reconstruct the last known normal condition, the first deviation, detection, alarm, notification, evacuation, isolation, intervention and subsequent spread. Preserve original timestamps and reconcile differences between clocks.

 

Identify the first fuel and ignition mechanism

Which material ignited first? What was its form and condition? Which ignition source could reach it? Does the available energy, contact and timing support the proposed mechanism?

 

Electrical damage needs particular care. Research demonstrates that fire exposure itself can produce electrical arcing. An arc site therefore needs interpretation within the wider sequence; its presence alone does not prove an electrical origin.

 

Test competing explanations against evidence

Question	Evidence to obtain
Where did the fire begin?	CCTV, separate witness accounts, alarm locations, scene examination and equipment positions
What was happening there?	Production records, machine status, shift handover, access records and maintenance permits
What material was involved?	Batch identity, supplier data, retained samples, scrap composition and storage records
Did equipment depart from its safe limits?	Temperature and load trends, faults, cooling status, inspection history and specialist examination
What should have interrupted the sequence?	Alarm settings, complete protective-function tests, bypass records and operator instructions
Why did the fire spread?	Inventory distribution, openings, ventilation, separation and detection or suppression performance
Why were people exposed?	Work locations, warning, routes, emergency roles, staffing and evacuation timeline
What allowed the condition to persist?	Previous defects, near misses, changes, supervision, maintenance resources and action closure

Protect life and stabilise the scene before examination. Preserve digital records, samples and components through documented evidence-handling procedures. Record changes made during rescue and firefighting. Do not re-energise damaged equipment simply to test a theory.

 

For every proposed cause, record supporting evidence, contradictory evidence, remaining uncertainty and the tests needed. “Undetermined” is an acceptable result when evidence cannot discriminate between explanations.

 

Examine why safeguards were ineffective

Distinguish a missing safeguard from one that was inadequate, bypassed, unavailable, late to respond or defeated by a shared failure. A protective function includes its sensor, logic, final action and supporting utilities.

 

Ask why the condition existed and persisted. An “operator error” label leaves unanswered whether instructions were workable, information was available and the expected response was realistic. HSE investigation guidance addresses both immediate events and underlying organisational conditions.

 

What authorities and management should require after the investigation

 

The outcome should connect evidence to action. For each finding, identify the failed mechanism, affected equipment or activity, corrective measure, responsible person, completion date and verification needed.

 

Within their respective responsibilities, fire investigators, DISH, pollution-control authorities, police and forensic specialists should coordinate relevant records and findings. Factory management should provide the actual process, inventory and operating history, not only certificates and equipment lists.

 

Restart decisions should address damaged equipment, remaining hazards, required safeguards and workforce readiness. Similar facilities should receive lessons that explain which operations are affected and what satisfactory control looks like.

A photograph can document an obstruction or storage condition. It cannot prove that a protective trip will operate, a concealed electrical connection is sound or a sprinkler system will deliver its design performance. Verification must match the control.

 

HSE-RM SOLUTIONS approach

The useful lesson from a fire is a clearer understanding of how the hazardous condition developed and how to prevent its recurrence.

 

HSE-RM SOLUTIONS supports facilities through plant-specific hazard identification, operating-limit reviews, equipment and ignition-source assessments, activity-based procedures, emergency preparedness and corrective-action verification.

Our Process–Equipment–Activity–Human approach connects technical safeguards with the work people actually perform.

 

Before the shift, establish the conditions required for safe operation. During the shift, recognise and act on deviations. After an incident, follow the evidence and verify the corrective action.

 

HSE-RM SOLUTIONS
Your Partner In Safety...

 

 

Panoli Fire Review and Used Oil Processing Hazards

 HSE-RM SOLUTIONS | Technical review | 4 November 2026

 

The fire reported at Supreme Petrochem in Panoli raises a practical question for used-oil processing facilities: what sequence could bring a combustible release, air and an ignition source together, and which controls should interrupt that sequence?

Investigators need to establish the material involved, the operating stage, the first release or abnormal condition, the ignition source and the reasons the event escalated. The scenarios below are an investigation framework for this type of processing industry, not findings about Supreme Petrochem.

The incident and the industry

Sandesh reports a fire and blasts at Supreme Petrochem, Panoli GIDC, with three workers seriously burnt. It reports attendance by the Directorate of Industrial Safety and Health, Gujarat Pollution Control Board and police, while stating that an official cause had not been established. An agency attending the scene is not equivalent to an agency issuing a cause determination.

A historical GPCB list of actual users, dated 31 March 2024 and available through a third-party document archive, identifies Supreme Petrochem, GPCB ID 78567, Plot C1-B 1708, GIDC Panoli, against used oil. The June 2023 list records a capacity of 2,160 tonnes per year. This supports a used-oil processing or recycling connection. These records do not establish the present equipment, exact process, current authorisation status or equipment involved in the fire.

Comparable operations in Gujarat

The following examples identify the broader sector. Historical listing does not establish that a facility remains operational or uses the same process as Supreme Petrochem.

Facility	Gujarat location	Evidence of comparable activity
ABC Organics & Chemicals	Panoli, Bharuch	Used oil in the March 2024 GPCB list
Royal Petro Oil Refinery LLP	Gandhidham, Kutch	Used oil in the same list
Classic Oil Refinery	Choryasi, Surat	Used oil in the same list
Greenspace Enviro Services	Anand district	Its own website describes used/waste-oil re-refining using thin-film evaporation, producing base oil and light oil

Sources: GPCB List (https://legalupdate.qhsealert.com/file/202_Actual%20users%20for%20Used%20Oil%20%26%20Waste%20Oil.pdf)

 

These are examples of related operations, not allegations of unsafe conditions. A sector review should group facilities by their actual feedstock, heating method, distillation technology, inventories and safeguards.

 

How the process can create fire hazards

A representative re-refining route includes receipt and storage, solids removal, dehydration, removal of lighter fuel fractions, distillation, condensation, product collection and finishing. Vacuum or wiped-film equipment is used in some processes. Other recovery plants have different arrangements. (Source: https://chemsept.in/Views/Projects/UsedOilRefining.aspx)

 

Used oil is a variable feedstock. Water, particles and chemicals can enter it during service or collection. Its hazards cannot be assessed solely from the original lubricant specification.

 

Vapour generation is expected during distillation. An explanation such as “gas formed” must establish whether this was normal evaporation, unexpected volatile contamination, steam generation or decomposition. It must then explain the release, pressure conditions and ignition.

 

Fuel and oxidiser identification

Material or condition	Where to look	Why it matters
Used oil with lighter fuel or solvent contamination	Incoming tankers, drums, feed tanks and mixed batches	Volatility and ignition behaviour may differ from the expected feed
Light hydrocarbon fractions	Defueling equipment, condensers and receivers	A release can create an ignitable vapour mixture
Heated oil and oil mist	Pumps, flanges, hoses, seals and pressurised lines	Leakage can supply a pool fire or dispersed combustible spray
Heating-system fuel or thermal fluid	Burner fuel trains and hot-oil circuits, where installed	The heating utility can supply the first fuel release
Oily residues and contaminated materials	Still bottoms, sludge, insulation, filters and rags	They can contribute to fire growth; some deposits require assessment for self-heating
Air entering process equipment	Vacuum leaks, open connections and maintenance openings	Oxygen can enable combustion where combustible vapour is present

 

Oil-mist hazards need separate consideration from bulk-liquid flash point. Air is the oxidiser in these scenarios, not the fuel.

 

Hazard identification across the facility

This screening register must be developed against the site's equipment and operating limits. It is neither exhaustive nor a probability ranking.

Area and deviation	Credible mechanism to examine	Controls to assess
Feed receipt and mixing	Unexpected volatile or incompatible contamination changes the batch hazard	Traceable receipts, defined acceptance criteria, representative testing and segregation of uncertain material
Wet feed entering a hot process	Rapid vaporisation causes foaming, carryover, ejection or pressure rise	Water assessment, controlled dehydration and charging, appropriate operating limits and pressure protection
Excess heat or low inventory	Local overheating, exposed heated surfaces or degradation of susceptible material	Temperature and level protection; circulation monitoring where applicable; limits based on feed and residue properties
Vacuum failure or air ingress	Operating conditions change; an ignitable mixture may develop	Leak integrity, pressure monitoring, defined shutdown response and engineered inerting where justified
Condenser or cooling failure	Vapour is not adequately condensed and reaches unintended locations	Cooling performance monitoring, suitable trips and safe handling of uncondensed vapour
Restricted vapour or relief path	Pressure rises because generation exceeds discharge capacity	Verified relief basis, blockage inspection, controlled valve positions and safe discharge arrangements
Receiver overfill or open collection	Liquid or vapour escapes near people or ignition sources	Closed collection, suitable level protection, controlled transfer and ventilation
Pump, flange or hose leakage	Hot oil or light fractions contact an ignition source	Mechanical integrity, compatible components, leak detection and accessible emergency isolation
Heater or thermal-fluid fault	Fuel or hot fluid leaks; abnormal combustion or overheating occurs	Appropriate burner safeguards, fuel isolation and circulation/temperature protection
Maintenance during operation	Hot work, opening equipment or temporary wiring introduces ignition or releases material	Isolation, permits, atmosphere testing, contractor supervision and coordination of simultaneous work
Storage and drainage	A local release spreads through drains or exposes adjacent inventories	Compatible segregation, containment, drain control, access and emergency planning
Startup, shutdown or modification	Valve alignment, utilities or controls differ from normal operating assumptions	Specific procedures, change review, readiness checks and competent shift handover

 

The register combines process, equipment and activity scenarios. Heating or vacuum loss does not automatically cause decomposition; that depends on the material and conditions. A pressure event also does not automatically establish a combustion explosion.

 

Ignition sources and the precautions they require

 

Electrical equipment and portable devices

Assess motors, switches, junction boxes, instruments, temporary cables, lamps and portable equipment against the hazardous-area classification. Equipment suitability includes its protection method, gas group, temperature class and installation condition. “Flameproof motor installed” is not a complete assessment.

 

Flames and hot surfaces

Check fired heaters, burner fronts, exhausts, exposed hot pipework and vehicle routes against credible vapour releases. A leak reaching a heater can ignite without an electrical fault. Verify separation and the conditions under which heating must stop. (Use Guide: https://www.hse.gov.uk/comah/sragtech/techmeasareaclas.htm)

 

Static discharge

Review tanker unloading, pumping, filtration, filling and sampling. Verify bonding continuity and earthing of conductive equipment, suitable hoses and transfer methods. Earthing metal equipment alone does not resolve charging of an insulating liquid, hose or container. Avoid prescribing one flow limit for every material and arrangement. (Earthing Guide: https://www.hse.gov.uk/comah/sragtech/techmeasearthing.htm)

 

Welding and other maintenance

Consider alternatives to hot work. Where it is necessary, isolate relevant equipment, assess connected and adjacent vessels, and use suitable gas testing before and during work. The permit must describe actual precautions and supervision. An empty-looking oil vessel may still contain hazardous residue or vapour.

 

Mechanical heat and contaminated insulation

Inspect bearings, alignment and abnormal vibration. Investigate oil-soaked insulation and persistent leaks, particularly around hot equipment. Replacing insulation without finding the leak can leave the underlying hazard in place.

 

Controls that function when demanded

Establish the required response to excessive temperature, low inventory, loss of circulation, cooling failure and abnormal pressure. Verify the complete protective function, including sensors, logic, final isolation devices and essential utilities. Independence, bypass management and proof testing matter. A shutdown must reach a defined safe state; some processes require cooling to continue after heating stops.

 

Evidence authorities should examine

Life safety and scene stabilization take priority. Once access is safe, preserve evidence before dismantling, cleaning or restarting equipment. Record emergency actions that changed valve positions, power supplies or equipment condition.

 

Investigation question	Evidence to seek
Where did the event begin?	CCTV, first witness observations, fire-service records, original equipment locations and competent fire-origin examination
What material was being processed?	Batch identity, receipts, supplier history, retained feed and product samples, laboratory results and tank-transfer records
What was the operating stage?	Charging, heating, dehydration, distillation, discharge, cleaning or startup records
What changed before the event?	Time-aligned temperature, level, pressure/vacuum, cooling, flow, power and alarm histories
Where did material first escape?	Seal and flange condition, pipe failures, vessel openings, receivers, drains, vent outlets and vacuum-pump discharge
What supplied ignition?	Heater operation, electrical examination, hot-work records, static-control evidence, hot surfaces and vehicle activity
Did pressure failure precede fire?	Vessel deformation, fracture assessment, relief condition, pressure history and the sequence visible in recordings
Why did protection not stop escalation?	Setpoints, response times, calibration, complete trip tests, bypass records, isolation performance and shared utility failures
Why were workers exposed?	Work positions, access routes, warning, emergency shutdown access, supervision and evacuation arrangements
What changed recently?	Feed suppliers, throughput, temperatures, piping, equipment, staffing, maintenance and operating procedures

 

Testing should be planned by competent investigators, with samples and components documented and preserved. The table is a proposed evidence plan, not a statement that these records exist at the site.

 

A burnt cable alone cannot establish that an electrical fault started the fire. A damaged vessel alone cannot establish that an explosion initiated it. Both may be consequences of an earlier event. Competing explanations should be tested against the sequence and physical evidence.

 

HSE's investigation framework distinguishes immediate events from the underlying arrangements that allowed them. The review should therefore also examine competence, maintenance, communication and how identified defects were managed.

 

Suggested coordination between authorities

Within their respective powers, a coordinated review could allocate these workstreams:

• Fire service and forensic specialists: origin, first fuel, ignition sequence, spread and emergency-response observations.
• DISH: process design, operating limits, machinery integrity, protective functions, work practices and management arrangements.
• GPCB: actual feed and waste streams, approved activities and consent conditions, storage, residues, emissions and contaminated runoff.
• Police and forensic laboratory: witness evidence, preservation and examination of relevant components and samples.
• District and industrial-estate emergency teams: mutual aid, access, adjacent exposures, off-site consequences and communication.

 

These are suggested technical workstreams, not a substitute for each agency's statutory remit. Current approvals should be checked directly; an old list cannot establish whether a renewal was granted.

 

Actions for similar facilities

Operators can review credible hazards without assuming that the same failure occurred at Panoli. Start with feed acceptance, heating limits, condenser performance, vapour discharge routes, leak history, ignition controls and functional testing of shutdowns.

 

Where a critical safeguard cannot be demonstrated or a dangerous condition exists, have competent personnel assess whether the affected operation can continue safely. Set corrective actions and restart conditions around the actual hazard.

 

Fire protection, containment and emergency response remain necessary because preventive controls can fail. Their adequacy should reflect the inventories, release scenarios and neighbouring exposures.

 

An authority's sector advisory would be most useful if it identifies the failed mechanism, the equipment and operations to which it applies, the checks required, the acceptance criteria and responsibility for closure. Confirmed findings should be distinguished from unresolved hypotheses.

 

HSE-RM SOLUTIONS perspective

 

The useful outcome of an investigation is an explanation that leads to verifiable risk reduction.

 

For used-oil processing, that means connecting feed characteristics, process conditions, equipment integrity, operating activities and human decisions. It means establishing which safeguards were needed, whether they worked and how their effectiveness will be maintained.

 

HSE-RM SOLUTIONS can support this approach through process hazard identification, focused HAZOP studies, ignition-source reviews, equipment and protective-system assessments, and practical operating and emergency procedures.

 

Identify the hazardous sequence. Interrupt it. Verify the control.

HSE-RM SOLUTIONS
Your Partner In Safety...