Petrochemical and Refinery Services in Thailand
Corrosion control, HR solutions, and technical services for refineries, petrochemical complexes, and chemical plants.
What drives complexity in this sector
Refineries, gas plants and petrochemical complexes rely on piping, tanks, vessels, heat exchangers and reactors that all benefit from corrosion control, from upstream olefins and aromatics units to downstream resin and fibre plants. JST Group has delivered corrosion engineering, cathodic protection, corrosion monitoring, inspection and workforce solutions to major complexes across Thailand and Southeast Asia for over two decades, and understands the pressures of continuous operation and turnaround cycles.
Process Corrosion
High-temperature, high-pressure environments accelerate internal and external corrosion across vessels, piping, and heat exchangers.
How we solve it: Process CorrosionSkilled Workforce
Sourcing certified process technicians, engineers, and operators — especially during turnarounds and expansions.
How we solve it: Skilled WorkforceRegulatory Compliance
Maintaining full compliance with environmental, safety, and process safety management requirements across multiple jurisdictions.
Asset Integrity
Extending operating life of aging facilities while managing inspection scope, shutdown windows, and risk-based approaches.
How we solve it: Asset Integrity
Sector
Petrochemical
Where corrosion starts in Petrochemical assets, and how we stop it
The asset groups that corrode first, the mechanism behind each, and the JST service that addresses it. Compiled by our Corrosion Control Division from survey and maintenance work across the region.
- 01
Process piping and pressure vessels
How we solve it: Process piping and pressure vesselsThe threat CO2, H2S, chlorides, amines and high temperature drive internal corrosion, under-deposit attack and cracking in process units.
How we protect it Corrosion coupons, ER and LPR probes at the most corrosive points, inhibitor optimisation and corrosion-rate trending tied to the inspection plan.
- 02
Heat exchangers and reactors
How we solve it: Heat exchangers and reactorsThe threat Tube pitting, erosion-corrosion at inlets, fouling and dissimilar-metal couples shorten exchanger life and force unplanned bundle changes.
How we protect it Materials and mechanism assessment, water-side chemistry, sand and erosion probes and eddy-current tube inspection at turnarounds.
- 03
Buried plant piping and tank bottoms
How we solve it: Buried plant piping and tank bottomsThe threat Congested below-grade piping, mixed soils, stray DC from electrical systems and old coatings corrode where excavation is costly.
How we protect it Cathodic protection designed for complex plant layouts, DC decouplers at grounding, DCVG surveys and CP of tank floors.
- 04
Insulated lines and corrosion under insulation
How we solve it: Insulated lines and corrosion under insulationThe threat Water trapped under insulation on lines running at 50 to 175 °C causes corrosion under insulation, the leading cause of leaks in ageing plants.
How we protect it CUI monitoring sensors under the cladding, prioritised insulation removal and inspection, and coating systems specified for insulated service.
- 05
Cooling-water and fire-water systems
How we solve it: Cooling-water and fire-water systemsThe threat Oxygen pitting, bacteria and scale in cooling loops and stagnant fire mains, with buried sections that are rarely inspected.
How we protect it Cathodic protection of buried mains, cooling-water chemistry and biocide control, and probes on the return header.
- 06
Control rooms and electrical rooms
How we solve it: Control rooms and electrical roomsThe threat H2S, SO2 and chlorine at parts-per-billion levels corrode circuit boards, relays and contacts and cause unexplained trips.
How we protect it Air IQ real-time atmospheric corrosion monitoring to ISA 71.04, filtration recommendations and vapour-phase inhibitor emitters in cabinets.
What we deliver in this sector
Each service links directly to the relevant page for full capability detail.
Cathodic Protection
Cathodic protection for buried plant piping, tank bottoms and below-grade structures.
Corrosion Monitoring
Monitoring programmes that track corrosion rates on critical process lines.
Heat Treatment / PWHT
Post-weld heat treatment for pressure vessels and piping during turnarounds and expansions.
Corrosion Engineering
Corrosion assessments and mitigation design for process units, vessels and heat exchangers.
NDE Inspection
NDT, corrosion mapping and risk-based inspection planning for fixed plant.
Eastern Seaboard Recruitment
Engineers, technicians and plant leadership for Map Ta Phut and Eastern Seaboard operations.
Pipeline Coating & CP Surveys: DCVG, ACVG, PCM, CIPS
Above-ground surveys that identify, locate and grade coating defect indications and assess cathodic protection performance along the route, with a prioritised repair list. The indirect-inspection step of an ECDA programme (NACE SP0502), and equally suited to buried plant and tank-farm pipework (not tank bottoms).
Learn MoreWhat JST supplies for Petrochemical
Services delivered by our own AMPP-certified engineers and technicians, and products from the manufacturers we represent in Thailand and Southeast Asia, supplied and supported from Bangkok.
Request a quotationCathodic protection services
Surveys, design, installation, testing, commissioning and maintenance of impressed current and galvanic anode systems.
Cathodic protection materials
Anodes, backfill, reference electrodes, cables, junction boxes, test posts and transformer rectifiers, supplied through JST in Thailand.
DC decouplers and surge protection
Dairyland solid-state decouplers, polarisation cells and over-voltage protectors that keep cathodic protection and electrical grounding separate.
Corrosion monitoring systems
Cosasco corrosion coupons, ER and Microcor probes, LPR and ZRA probes, access fittings and online data systems, installed and serviced by our technicians.
Atmospheric and CUI monitoring
Cosasco Air IQ real-time atmospheric corrosivity monitoring for control and electrical rooms, and corrosion-under-insulation sensors for insulated lines.
Corrosion-under-support solutions
Deepwater pipe supports and I-Rod systems that stop crevice corrosion where pipes rest on steel.
Electrical isolation and sealing
GPT monolithic isolation joints, flange insulating kits, casing spacers, end seals, link seals and Evolution sealing gaskets.
Flange splash guards
Artema safety spray shields for flanges carrying hazardous, hot or corrosive fluids.
Survey instruments and equipment
Cath-Tech and other instruments for CP, DCVG, CIPS and soil resistivity surveys, supplied with calibration and training.
Preservation and VpCI products
Cortec vapour-phase corrosion inhibitors for stored equipment, spares, modules and shutdowns, supplied with Optimal Tech, Cortec's master agent for Thailand.
Organisations we serve in this sector
- IRPC
- GC (Global Chemical)
- BST Elastomers
- SCG Chemicals
- Sasol
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