ENAP Bio-Bio Refinery — Chile

ENAP Bio-Bio Refinery is a refinery in Chile. Its listed capacity is 116,000 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 Empresa Nacional del Petróleo. By capacity it ranks #1 among 3 oil refineries in Chile. It emits about 1,283,437 t CO₂e a year from Climate TRACE. That is 16% of the CO₂e from the 20 facilities in Chile that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 29% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1753464.

In context: how this facility compares

At 116,000 BBL per day, ENAP Bio-Bio Refinery is around the median refinery in Chile (104,000 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 1,283,437 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 Chile

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

Operator

Operated by Empresa Nacional del Petróleo. All facilities by this operator →

Local climate

ENAP Bio-Bio Refinery sits in a warm-summer Mediterranean climate zone (Köppen Csb), at 36.8°S in the southern 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 1375 W/m² to ambient — roughly 1.06× 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 3 oil refineries in Chile by listed capacity (Climate TRACE).

Nearby industrial sites

• Talcahuano Cement Plant · Cement Plant · 17,991 t CO₂
• CAP Acero Huachipato steel plant · Steel Plant · 947,868 t CO₂
• Celulosa Arauco y Constitución - Arauco Pulp Mill · Pulp & Paper Mill · 989,562 t CO₂
• Nueva Aldea pulp · Pulp & Paper Mill · 837,321 t CO₂
• CMPC Celulosa S.A. - Laja Mill · Pulp & Paper Mill · 65,971 t CO₂
• CMPC Celulosa S.A. Sante Fe · Pulp & Paper Mill · 332,391 t CO₂

Location

Coordinates -36.77918, -73.12513. View on OpenStreetMap.

Frequently asked questions