PTT Rayong Refinery — Thailand

PTT Rayong Refinery is a refinery in Thailand. Its listed capacity is 280,000 BBL per day. Refineries heat, fractionate and chemically transform crude oil into fuels and petrochemical feedstocks through energy-intensive distillation and cracking — extremely demanding on steam generation and heat recovery. It is operated by PTT Group. By capacity it ranks #1 among 6 oil refineries in Thailand. It emits about 3,517,088 t CO₂e a year from Climate TRACE. That is 7.3% of the CO₂e from the 37 facilities in Thailand that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 46% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3144135.

In context: how this facility compares

At 280,000 BBL per day, PTT Rayong Refinery is well above the median refinery in Thailand (215,000 BBL per day). Subsector: oil-and-gas-refining. As refinery, it requires high process heat (typically 200–600°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Refineries heat, fractionate and chemically transform crude oil into fuels and petrochemical feedstocks through energy-intensive distillation and cracking — extremely demanding on steam generation and heat recovery.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 3,517,088 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest oil refineries in Thailand

Listed capacity (BBL per day), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by PTT Group. All facilities by this operator →

Local climate

PTT Rayong Refinery sits in a tropical savanna climate zone (Köppen Aw), at 12.7°N in the northern hemisphere.

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

This site sits in an extreme marine/tropical environment (estimated ISO 9223 class CX — Extreme), with marine salt corrosion the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1220 W/m² to ambient — roughly 0.94× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #1 largest of 6 oil refineries in Thailand by listed capacity (Climate TRACE).

Nearby industrial sites

• PTT Global Chemical Map Ta Phut, Map Ta Phut, Rayong · Petrochemical · 3,850,620 t CO₂
• Star Petroleum Map Ta Phut Refinery · Refinery · 1,714,021 t CO₂
• SCGC Rayong Olefins (ROC), Map Ta Phut, Rayong · Petrochemical · 1,845,816 t CO₂
• Tata Steel Manufacturing SCSC Plant · Steel Plant · 20,839 t CO₂
• Siam Yamato Steel Map Ta Phut plant · Steel Plant
• Siam Yamato Steel Huai Pong plant · Steel Plant · 18,945 t CO₂

Location

Coordinates 12.70004, 101.14697. View on OpenStreetMap.

Frequently asked questions