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Advances in methanol production technology will result in greater yields from steam reforming.  New plants may also be built with combined steam reforming and partial oxidation.  The more efficient technologies are reflected in Scenario 3.

3.7  Methanol from Biomass

There is also considerable interest in producing methanol from biomass.  Two biomass feedstocks for methanol were considered.  In one case landfill gas is processed into methanol in the SoCAB.  In another case, a gasifier operates on agricultural waste, wood waste, and energy crops in the Central Valley.  Tables 3-12 and 3-13 show the assumptions for methanol production from biomass.  Sufficiently large production volumes were assumed for biomass-based methanol production in California, so that the fuel can be transported to Los Angeles by pipeline.  The pipeline options would be much more cost effective than trucking the fuel.  The impact on the results of the study is that a bulk storage facility is assumed in Los Angeles, and trucking emissions are the same as those for other liquid fuels.

Table 3-12:  Methanol from Biomass Gasification Production and Distribution Phases

Phase

Process

Emission Sources

1

Extraction

Harvest equipment

2

Transport

Trucks

3

Production

Fugitives, compressor engines, purge gas combustion

4

Site storage

Onsite tanks

5

Transport to bulk storage

Pipeline (pumps & fugitive)

6

Bulk storage

Floating roof tanks

7

Transport to local station

Tanker trucks (engines & fugitive)

8

Local station distribution

Underground tanks, refueling vapors and spillage

Table 3-13:  Methanol from Landfill Gas Production and Distribution Phases

Phase

Process

Emission Sources

1

Extraction

Landfill collection pipes

2

Transport

Compressors

3

Production

Fugitives, purge gas combustion

4

Site storage

Onsite tanks

5

Transport to bulk storage

None

6

Bulk storage

None

7

Transport to local station

Tanker trucks (engines & fugitive)

8

Local station distribution

Underground tanks, refueling vapors and spillage

29

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