ExxonMobil Chemical Co., Baytown,Tex. — United States

ExxonMobil Chemical Co., Baytown,Tex. is a petrochemical plant in United States. Its listed capacity is 3,500,000 t of ethylene. Petrochemical plants crack hydrocarbons at very high temperatures to produce ethylene, propylene and other building-block chemicals — one of the most heat-intensive industrial processes. It is operated by Exxon Mobil Corp. By capacity it ranks #1 among 26 petrochemical plants in United States. It emits about 4,743,027 t CO₂e a year from Climate TRACE. That is 0.84% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-18648322.

In context: how this facility compares

At 3,500,000 t of ethylene, ExxonMobil Chemical Co., Baytown,Tex. is well above the median petrochemical plant in United States (1,134,000 t of ethylene). Subsector: petrochemical-steam-cracking. As petrochemical plant, it requires high process heat (typically 300–800°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Petrochemical plants crack hydrocarbons at very high temperatures to produce ethylene, propylene and other building-block chemicals — one of the most heat-intensive industrial processes.

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

What 4,743,027 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 petrochemical plants in United States

Listed capacity (t of ethylene), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by Exxon Mobil Corp. All facilities by this operator →

Local climate

ExxonMobil Chemical Co., Baytown,Tex. sits in a humid subtropical climate zone (Köppen Cfa), at 29.7°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 aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1294 W/m² to ambient — roughly 0.99× 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 26 petrochemical plants in United States by listed capacity (Climate TRACE).

Nearby industrial sites

• AIR PRODUCTS BAYTOWN PLANT · Chemical Plant · 173,706 t CO₂
• AIR PRODUCTS BAYTOWN PLANT · Chemical Plant · 93,467 t CO₂
• LCY ELASTOMERS · Other Manufacturing · 49,373 t CO₂
• Exxonmobil Baytown Refinery · Refinery · 5,526,773 t CO₂
• Carne Seca Los Guerra · Food & Beverage
• E I DU PONT DE NEMOURS LA PORTE PLANT · Chemical Plant · 8 t CO₂

Location

Coordinates 29.74163, -95.01754. View on OpenStreetMap.

Frequently asked questions