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Mitsui Chemicals Chiba, Ichihara, Chiba

Petrochemical in Japan. Approximate location 35.50088, 140.04157.

PetrochemicalJapanCO₂ estimate (modelled)

Mitsui Chemicals Chiba, Ichihara, Chiba is a petrochemical in Japan. Its listed capacity is 553,000 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 Mitsui Chemicals. By capacity it ranks #4 among 12 petrochemical plants in Japan. It emits about 777,500 t CO₂e a year from Climate TRACE, roughly comparable to the annual emissions of 181k passenger cars. Its CO₂ per unit of capacity is 8% above the national median for this sector.

553,000t of ethylene
777,500t CO₂e / yr (Climate TRACE)
#46CO₂ rank in Japan
1.41t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-731955.

Data status

Known source data

FacilityMitsui Chemicals Chiba, Ichihara, Chiba Climate TRACE
CountryJapan Climate TRACE
Coordinates35.50088, 140.04157 Climate TRACE
Sector / subsectorpetrochemical-steam-cracking Climate TRACE
Reported capacity553,000 t of ethylene Climate TRACE
Owner / operatorMitsui Chemicals Climate TRACE
Modelled CO₂e777,500 t/yr Climate TRACE

Calculated from the dataset

Japan rank#46 of 105 · top 43.8% calculated
Global petrochemical-steam-cracking rank#131 of 218 · top 60.1% 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

At 553,000 t of ethylene, Mitsui Chemicals Chiba, Ichihara, Chiba is around the median petrochemical in Japan (493,000 t of ethylene). Subsector: petrochemical-steam-cracking. As petrochemical, it requires high process heat (typically 300–800°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. 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 777,500 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:

181kcars driven for a year
101khomes' annual energy use
13 milliontree seedlings grown 10 years

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

Carbon cost, Scope 1 & decarbonization potential

At its reported 778k t CO₂e/yr (Scope 1), Mitsui Chemicals Chiba, Ichihara, Chiba carries no domestic carbon price; petrochemicals 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 €58.6M/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 ≈16k t–39k t/yr, worth €1.2M€2.9M, 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).

778k t CO₂e / yrScope 1 emissions
€58.6M/yrindicative carbon value (not a CBAM liability)
16k t–39k t/yr ≈ €1.2M€2.9MDecarbonization 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 →

Capacity vs largest petrochemical plants in Japan

Keiyo Ethylene , Ichihara, Chiba: 690,000 t of ethylene690kKeiyo Ethy…Idemitsu Kosan Tokuyama , Tokuyama: 690,000 t of ethylene690kIdemitsu K…Resonac Oita, KK Oita: 618,000 t of ethylene618kResonac Oi…Mitsui Chemicals Chiba, Ichihara, Chiba: 553,000 t of ethylene553kMitsui Che…Asahi Kasei Mitsubishi Chemical Ethylene Corp, Kurasiki, Okayama: 496,000 t of ethylene496kAsahi Kase…Tosoh Yokkaichi Complex, Yokkaichi: 493,000 t of ethylene493kTosoh Yokk…ENEOS Tonen Chemcial, Kawasaki: 491,000 t of ethylene491kENEOS Tone…Mitsubishi Chemical Kashima, Kashima (Unit 2): 485,000 t of ethylene485kMitsubishi…

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

Operator

Operated by Mitsui Chemicals.

Local climate

Mitsui Chemicals Chiba, Ichihara, Chiba sits in a humid subtropical climate zone (Köppen Cfa), at 35.5°N in the northern hemisphere.

~18°Ctypical annual mean
~27°Ctypical warm-season
Humid subtropical: four distinct seasons — cold winters and warm summers

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 a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
40/100environmental-severity index
21.1°Cseasonal temperature swing
52 kmdistance to coast
HighCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1348 W/m² to ambient — roughly 1.04× the loss at a 20 °C reference; removable insulation recovers about 1281 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

The #4 largest of 12 petrochemical plants in Japan by listed capacity (Climate TRACE).

Nearby industrial sites

Location

Coordinates 35.50088, 140.04157. View on OpenStreetMap.

Heat loss & insulation profile

For a petrochemical, the main modular-insulation targets are steam crackers, quench towers, fractionators, heat exchangers, steam lines, valves & flanges. Typical hot-surface ranges used for screening: 150–550 °C.

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.

Japan: funding & obligation

Funding. Subsidies to cut upfront cost of energy-saving equipment for industry/commercial; some tied to 'specified business operator' status + S/A benchmark class. official source · verified 2026
Status: Annual call-based — confirm current SII program.

Obligation. Factories/operators with large energy use are designated 'specified business operators': must appoint energy managers, report, and file mid-to-long-term efficiency plans. (applies as a rule above the stated threshold — we do not hold this site's metered energy use). official source · verified 2026

Programme terms verified 2026-06-18; confirm the current open phase before applying. Eligibility depends on a site's energy use / headcount, which we do not hold — not a per-facility eligibility determination.

Frequently asked questions

What type of facility is Mitsui Chemicals Chiba, Ichihara, Chiba?

Mitsui Chemicals Chiba, Ichihara, Chiba is a petrochemical in Japan. 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.

What capacity is listed for Mitsui Chemicals Chiba, Ichihara, Chiba?

The open dataset lists 553,000 t of ethylene of capacity for Mitsui Chemicals Chiba, Ichihara, Chiba.

How much CO₂ does Mitsui Chemicals Chiba, Ichihara, Chiba emit?

The page uses about 777,500 t CO₂e/year from the open dataset It ranks #46 among facilities in Japan by estimated CO₂.

Where is Mitsui Chemicals Chiba, Ichihara, Chiba located?

Mitsui Chemicals Chiba, Ichihara, Chiba is in Japan at approximately 35.50088, 140.04157.

Who operates Mitsui Chemicals Chiba, Ichihara, Chiba?

The operator recorded in the open dataset is Mitsui Chemicals.

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