Specialty amines and ethanolamines: Emissions

How coal-based methanol can double an amine's footprint

How coal-based methanol can double an amine's footprint What this tab covers The greenhouse-gas footprint per tonne, split by lifecycle phase (feedstock, production, movement, use, end of life), the global total, other environmental impacts, levers and low-carbon routes, India's position, and where the investment opportunity lies. Emission intensity 3.00 t CO2e per t range about 2.4-5.3 (indicative; top end coal-based methanol) · calculated: MEA about 2.4 (0.72 t EO at 1.9 + 0.28 t NH3 at 2.8 + about 0.3 process); DMA about 2.7 with gas-based methanol, 4.1 with world-average methanol (1.8 t CO2e/t) and over 5 with coal-based methanol Global emissions per year 18.0 Mt CO2e per year 2025 · about 6 Mt x 3.0 t CO2e/t (indicative)

Per t of amine product, cradle-to-gate. Intensity: ethylene oxide, ammonia and methanol tiles; process energy indicative. Global total: derived (indicative).

Share of footprint by lifecycle phase

Feedstock 80% Production / process 15% Movement 5%

Footprint by lifecycle phase

Phase	Intensity	Share	Main sources of emissions	Notes	Source
Feedstock	about 2.4 t CO2e per t (indicative)	80%	ammonia, methanol and EO production	coal-based methanol and ammonia in China raise the figure	ammonia, methanol and ethylene oxide tiles
Production / process	about 0.45 t CO2e per t (indicative)	15%	steam for distillation of equilibrium mixtures and recycle, reactor heat		indicative
Movement	about 0.15 t CO2e per t (indicative)	5%	pressurised ISO tanks and tankers		indicative
Use	small direct emissions; in carbon capture, each t of MEA lost is replaced while it helps capture hundreds of tonnes of CO2	–	solvent degradation (about 0.3-1.5 kg MEA per t CO2 captured, indicative)	amine and nitrosamine emissions from capture plants need control	IEAGHG (indicative)
End of life	small	–	biodegradation in wastewater treatment; incineration of spent solvents	nitrogen in wastewater	indicative

Other environmental impacts

Nitrosamine formation, corrosive releases, nitrogen-rich effluent. DMF and NMP are reproductive toxicants.

Levers to cut emissions

Green or low-carbon ammonia and methanol as feed
Bio-ethanol based ethylamines (already common in India)
Heat integration and heat pumps on distillation trains
MEA reductive amination instead of the salty EDC route for ethyleneamines

India

Indian amine makers use imported methanol and ammonia and molasses ethanol; their main emissions are upstream. Neither Alkyl nor Balaji publishes product carbon footprints in the sources used.

Emission figures are indicative global averages from the life-cycle studies named; actual footprints vary widely by site, energy mix and method.

Low-carbon routes

Route	Intensity	Cost premium	Status	Source
Methylamines from green ammonia and green or biomethanol	below 1 t CO2e per t (indicative)	high while green ammonia costs $570-740/t in India (ammonia tile: SECI 2025 auction) and green methanol more than grey (indicative)	no commercial plant found; feedstock projects under way in India	ammonia tile; indicative
Ethylamines from molasses or grain ethanol	lower than fossil routes (indicative)	depends on government ethanol prices	commercial in India (Alkyl, Balaji)	indicative

For a climate investor Amines are an enabler of carbon capture: every capture plant needs solvent, and better amines (piperazine blends, hindered amines) cut regeneration energy. Indian makers could supply capture solvents and low-carbon amines if green ammonia and methanol become available locally. What has to be true: capture projects reach final investment decision in India and abroad, and buyers pay for low-carbon feed.