Reactor Vessels — Asbestos Exposure Crosswalk
What This Equipment Is
A reactor vessel is a pressurized container designed to host a controlled chemical reaction at elevated temperature and pressure. Reactor vessels are the operational core of refineries, chemical plants, phenolic resin plants, and a wide range of manufacturing processes. Common reactor types include:
- Fluidized catalytic crackers (FCC) — refinery gasoline production
- Hydrotreaters and hydrocrackers — refinery sulfur removal and conversion
- Phenolic resin reactors and resin kettles — phenol-formaldehyde synthesis
- Ammonia and urea reactors — fertilizer and chemical synthesis
- Polymerization reactors — plastics, synthetic rubber, resin production
- Reformers — petrochemical and hydrogen production
From roughly the 1940s through the 1980s, reactor vessels were specified with asbestos-bearing refractory linings, external insulation, gaskets, and surrounding fireproofing.
Related Equipment Pages
This page is the umbrella reference. For related equipment:
- Heat Exchangers — closely related process heat-transfer equipment
- Fired Heaters — process-fluid heating ahead of reactors
- Cat Cracker — fluidized catalytic cracking unit detail
- Coker Units — delayed coking reactors
- Amine Units — gas-treatment reactors
- Process Piping — connected piping carrying reactor feeds and products
Asbestos Products Historically Used at Reactor Vessels
| Product Category | Where Used | Notes |
|---|---|---|
| Refractory brick and castable | Reactor interior lining | High-temp duty; some grades asbestos-bonded |
| Block insulation | Reactor shell exterior | Calcium silicate or 85% magnesia |
| Pipe covering | Reactor feed and product piping | Calcium silicate, magnesia |
| Spray-applied fireproofing | Structural steel around reactors | Asbestos-bearing fireproofing |
| Gaskets | Reactor manway covers, flanges | Sheet, spiral wound, ring |
| Packing | Pump shafts, valve stems on reactor service | Braided asbestos rope |
| Insulating cement | Joints, irregular fittings | High fiber release during application |
| Catalyst handling materials | Some catalyst-related dusts contained asbestos | Limited but documented |
Manufacturers Named in Reactor-Vessel Litigation
Public asbestos litigation records identify these companies in cases involving reactor vessels and their support systems:
Reactor and process-vessel manufacturers (engineering & fabrication):
- Foster Wheeler
- Lummus Crest (now ChevronLummus)
- Bechtel
- Stone & Webster
- Combustion Engineering
- M.W. Kellogg
- Universal Oil Products (UOP) — catalytic cracking licensor
Refractory manufacturers:
- Harbison-Walker
- A.P. Green Industries
- Pryor-Giggey
- North American Refractories
Insulation manufacturers:
- Johns-Manville
- Owens-Corning / Fibreboard
- Pittsburgh Corning — Unibestos
- Eagle-Picher
- Armstrong World Industries
- W.R. Grace — fireproofing
Gaskets and packing:
- Garlock Sealing Technologies
- John Crane Inc.
- Flexitallic
Trust Funds That May Apply
- Manville Personal Injury Settlement Trust
- Owens-Corning / Fibreboard Asbestos Personal Injury Trust
- Pittsburgh Corning Corporation Asbestos PI Trust
- Eagle-Picher Industries Personal Injury Settlement Trust
- W.R. Grace Asbestos PI Settlement Trust
- A.P. Green Industries Asbestos PI Trust
- Dresser/Harbison-Walker Asbestos Trust
See full trust-fund directory →
Trades Most Exposed at Reactor Vessels
- Refractory bricklayers — primary trade for reactor refractory installation and tear-out
- Heat & Frost Insulators (Local #1) — exterior block and pipe insulation
- Pipefitters & Steamfitters — reactor feed and product piping
- Boilermakers — reactor fabrication, weld repair, and inspection access
- Millwrights — mechanical installation
- Maintenance Mechanics — gasket replacement, valve work, catalyst handling
- Welders — shell repair and modification
- Painters and Tapers — fireproofing application
- Laborers — refractory tear-out, catalyst handling, insulation removal during turnarounds
Refinery and chemical-plant turnarounds (planned shutdowns for inspection and repair) historically produced the highest concentrations of airborne asbestos fiber because of simultaneous refractory tear-out, insulation removal, gasket replacement, and catalyst handling work.
Jobsites in the Network Documenting Reactor Vessels
- Phenolic resin plants documented across the Missouri archive — resin kettles and reactors
- Refineries and chemical plants across state archives — catalytic crackers, hydrotreaters, and synthesis reactors
Compiled from publicly filed asbestos litigation records, EPA NESHAP filings, state-DNR records, and industry-publication histories. Product identifications and company references reflect what has been alleged or documented in publicly filed litigation. This page does not constitute a finding of liability against any company. This information is not legal advice; consult a licensed attorney about your specific situation.