Home / Asia / Vietnam / Oil refineries / Nghi Son Refinery

Nghi Son Refinery

Refinery in Vietnam. Approximate location 19.35706, 105.77077.

RefineryVietnamCO₂ estimate (modelled)

Nghi Son Refinery is a refinery in Vietnam. 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 Idemitsu Kosan Co Ltd. It emits about 2,275,643 t CO₂e a year from Climate TRACE, roughly comparable to the annual emissions of 530k passenger cars.

2,275,643t CO₂e / yr (Climate TRACE)
#7CO₂ rank in Vietnam

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3144171.

Data status

Known source data

FacilityNghi Son Refinery Climate TRACE
CountryVietnam Climate TRACE
Coordinates19.35706, 105.77077 Climate TRACE
Sector / subsectoroil-and-gas-refining Climate TRACE
Owner / operatorIdemitsu Kosan Co Ltd Climate TRACE
Modelled CO₂e2,275,643 t/yr Climate TRACE

Calculated from the dataset

Vietnam rank#7 of 90 · top 7.8% calculated
Global oil-and-gas-refining rank#133 of 630 · top 21.1% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

Subsector: oil-and-gas-refining. As refinery, it requires high process heat (typically 200–600°C) for its core industrial operations — heat that must be supplied by boilers, furnaces or direct combustion, and losses through uninsulated vessels and piping represent wasted fuel. Removable modular insulation can cut those losses by 80–96%, surface-cooling equipment to ≤45°C, with payback often under 2 years. 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 2,275,643 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:

530kcars driven for a year
297khomes' annual energy use
38 milliontree seedlings grown 10 years

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

Carbon cost, Scope 1 & decarbonization potential

At its reported 2.3M t CO₂e/yr (Scope 1), Nghi Son Refinery carries no domestic carbon price; refinerys are not a CBAM-covered good, so there is no border-carbon liability. At the EU ETS reference price (€75/t) the emissions carry an indicative carbon value of €171M/yr. The fastest decarbonization lever is energy efficiency: eliminating heat loss on hot equipment (removable insulation, steam & waste-heat recovery) typically cuts 2–5% of fuel-related CO₂ — here ≈46k t–114k t/yr, worth €3.4M€8.6M, with payback up to 2 years. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).

2.3M t CO₂e / yrScope 1 emissions
€171M/yrindicative carbon value (not a CBAM liability)
46k t–114k t/yr ≈ €3.4M€8.6MDecarbonization potential

Carbon price: EU CBAM €75/t · EU ETS €79/t, July 2, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Efficiency range: US DOE / ASTM C680 (method). Indicative carbon value, not the cash bill — free allocation applies; not compliance advice. Estimate the saving for this site →

Operator

Operated by Idemitsu Kosan Co Ltd. All facilities by this operator →

Local climate

Nghi Son Refinery sits in a tropical monsoon climate zone (Köppen Am), at 19.4°N in the northern hemisphere.

~26°Ctypical annual mean
~28°Ctypical warm-season
Tropical monsoon: warm all year, with distinct wet and dry seasons

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

Site climate & environmental severity

The local climate sets how fast unprotected steel, protective coatings and the insulation on hot process equipment degrade at this site. It sits in an extreme marine/tropical environment (estimated ISO 9223 class CX — Extreme), with marine salt corrosion the leading environmental stress.

CXISO 9223 corrosivity (indicative)
56/100environmental-severity index
11.9°Cseasonal temperature swing
12 kmdistance to coast
Very highCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1261 W/m² to ambient — roughly 0.97× the loss at a 20 °C reference; removable insulation recovers about 1198 W/m² of that. 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).

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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

Nearby industrial sites

Location

Coordinates 19.35706, 105.77077. View on OpenStreetMap.

Heat loss & insulation profile

For a refinery, the main modular-insulation targets are crude & vacuum distillation columns, fired heaters, heat exchangers, steam lines, valves & flanges. Typical hot-surface ranges used for screening: 150–550 °C.

Indicative recoverable energy

A first-pass insulation screen suggests about 61,000 MWh/year of recoverable heat-loss reduction and about 12,000 t CO₂e/year of avoided emissions. Screening estimate scaled from installed process-heat projects and surface-temperature reduction data.

See Inzonex Modular Insulation → Run the calculator →

Screening calculation from facility class, capacity and open emissions/energy context. Engineering survey required before procurement.

Safety & the no-regret first step

Start with a thermal survey of valves, flanges, doors and bends. Removable modular insulation keeps maintenance access open while lowering exposed-surface temperature and wasted heat.

External climate finance your country can access

For energy-efficiency projects around process heat, likely external funding channels include:

CBAM. Exporters of cement, steel, aluminium, fertiliser, hydrogen and electricity to the EU face the Carbon Border Adjustment Mechanism — cutting embedded emissions (efficiency + insulation) lowers the levy.

Sources: country climate-finance facilities and public development-bank programmes.

Frequently asked questions

What type of facility is Nghi Son Refinery?

Nghi Son Refinery is a refinery in Vietnam. 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.

How much CO₂ does Nghi Son Refinery emit?

The page uses about 2,275,643 t CO₂e/year from the open dataset It ranks #7 among facilities in Vietnam by estimated CO₂.

Where is Nghi Son Refinery located?

Nghi Son Refinery is in Vietnam at approximately 19.35706, 105.77077.

Who operates Nghi Son Refinery?

The operator recorded in the open dataset is Idemitsu Kosan Co Ltd.

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