Clean Air Initiative: GlobalClean Air Initiative: AsiaIniciativa del Aire Limpio: América LatinaClean Air Initiative: Sub-Saharan Africa
Advanced Search
Countries
Topics
CAI-Asia Listserv
Air Quality Newsletters
Opportunities

Join the CAI-Asia Partnership

Participate in
Better Air Quality (BAQ) 2008
November 2008

Methanol for Reducing Greenhouse Gas
The greenhouse gas (GHG) reduction potential of methanol is dependent on the feedstock. Burning M-85 derived from methane results in total, lifecycle GHG emissions slightly lower than a gasoline vehicle.

Methanol has many desirable combustion and emissions characteristics, including:

  • lean combustion characteristics
  • low flame temperature (leading to low NOx emissions)
  • low photochemical reactivity

It is also a liquid, which makes storage and handling much simpler than gaseous fuels.

At current and foreseeable prices, the most economical feedstock for methanol production is natural gas, especially natural gas found in remote regions where it has no ready market. The most common methanol fuel is M-85, a methanol-gasoline blend.

The greenhouse gas (GHG) reduction potential of methanol is dependent on the feedstock. Burning M-85 derived from methane results in total, lifecycle GHG emissions slightly lower than a gasoline vehicle. But lifecycle GHG emissions from wood or cellulose derived methanol are approximately 60% lower than gasoline.

Light-duty methanol vehicles have emissions of NOx and CO similar to gasoline vehicles. Emissions of VOCs are roughly half those of gasoline vehicles and lower ozone reactivity of the VOC results in lower ozone impacts. Emissions of formaldehyde (a primary combustion product of methanol) are higher than those from gasoline or other alternative-fueled vehicles but can be controlled with a catalyst.

The major barrier to widespread use of methanol is its high cost and price volatility. There is little prospect for it to become price-competitive with conventional fuels unless world oil prices increase greatly.

Quick Links

Who we are:
- CAI-Asia Partnership
- CAI-Asia Center
- Local Networks

Key documents:
- Country Synthesis Reports
- Compendium
- Benchmarking Report
- Quarterly Report (Center)
- Newsletters

Programs/Projects:
SUMA
APPH
PAPA
Capacity Building
DIESEL (completed)
PSUTA (completed)

Related Topics
Alternative fuels and energy sources > Biofuels

Secretariat: CAI-Asia Center, 3510 Robinsons Equitable Tower, ADB Ave., Ortigas Center, Pasig City, Philippines 1605
Tel: +632 3952843 to 45 / Fax: +632 3952846