Decontamination & Degassing
OLE22 Mini SD Decontamination
- Client
- GC Maintenance and Engineering Co., Ltd. (GCME)
- Asset owner
- PTT Global Chemical PCL (GC3)
- Year
- 2024
- Unit
- Quench water system
- Industry
- Refining & Petrochemical
Our Services
Decontamination & Degassing
Removes hazardous substances such as H2S, benzene, mercury and hydrocarbons ahead of inspection and maintenance.
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Contact usOverview
Service Overview
We provide safe and efficient decontamination services that remove hydrocarbons, pyrophoric materials and mercury from process equipment. Our environmentally responsible methods ensure safety during inspection and maintenance while enhancing overall equipment performance.
We specialize in cleaning large process vessels, reactors, columns, exchangers and piping using degassing and decontamination techniques to remove hazardous substances such as H2S, benzene, mercury and ammonia. Degassing reduces the risks posed by dangerous gases, while pre-decontamination removes sludge and deposits, maintaining a safe environment and minimizing waste and human exposure during cleaning and maintenance.
Equipment
Equipment and Systems
- Applied to Process vessels, reactors, columns, exchangers and piping
Safety, Quality & Environment
Safety and Waste Handling
Our Quality and Environmental Policy, announced and effective from 25 July 2025, sets out how CHC Chemical manages quality, safety and environmental responsibility with the participation of all personnel. The policy is communicated across the organization and reviewed annually, or whenever significant change occurs.
Our commitments
- Meet customer requirements and specifications, applicable laws and regulations, and international standards.
- Maintain prevention systems and emergency response procedures, and manage risks that may affect work quality.
- Engage employees at every level in reducing energy consumption, water usage and waste.
Track Record
Related Project References
Decontamination & Degassing
OLE1 C-1201 and C-1202 Decontamination and Chemical Cleaning
- Client
- GC Maintenance and Engineering Co., Ltd. (GCME)
- Asset owner
- PTT Global Chemical PCL (GC2)
- Year
- 2024
- Unit
- Caustic system
- Industry
- Refining & Petrochemical
Decontamination & Degassing
V-83001 Flare Drum
- Client
- KC Machine Service Co., Ltd.
- Asset owner
- Bangkok Synthetics Co., Ltd. (BST)
- Year
- 2024
- Unit
- Flare drum
- Industry
- Refining & Petrochemical
Decontamination & Degassing
E-1302 BD Reboiler Decontamination
- Client
- KC Machine Service Co., Ltd.
- Asset owner
- Bangkok Synthetics Co., Ltd. (BST)
- Year
- 2023
- Unit
- Reboiler of the BD extraction unit
- Industry
- Refining & Petrochemical
Decontamination & Degassing
S16B Decontamination and Chemical Cleaning
- Client
- PTT Global Chemical PCL (GC2)
- Year
- 2023
- Unit
- Amine Treatment System, Quench water system, DOX System, Spent Caustic Tank
- Industry
- Refining & Petrochemical
Decontamination & Degassing
ROCSD2023 Decontamination
- Client
- Nalco Industrial Services (Thailand)
- Client
- KC Machine Service Co., Ltd.
- Asset owner
- Rayong Olefins Company Limited
- Year
- 2023
- Unit
- Quench oil tower, Caustic Tower, Depropanizer Column, Debutanizer Column
- Industry
- Refining & Petrochemical
Decontamination & Degassing
TA2022 REF (GC6) S24B
- Client
- PTT Global Chemical PCL (GC6)
- Year
- 2022
- Unit
- Hydrocracker (HCU), ADIP Regeneration (ADIP #1&2), Sulphur Recovery Unit (SRU#1), Shell Claus Off-gas Treating (SCOT), Sour Water Stripper (SWS), Stacks/Flare and Liquid Disposal Unit, Condensate Residue Splitter (CRS), Deep Hydro Desulfurization (DHDS)
- Industry
- Refining & Petrochemical
Request a Quotation
Plan Your Next Turnaround With Confidence
Share your equipment, scope and schedule, and our specialists will prepare a proposal aligned with your technical and commercial requirements.
- Phone 033-650-878
- Email info@chcchemical.com