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Title: Estimated availability of resources for large-scale production of SNG by anaerobic digestion of specially grown plant material

Book ·
OSTI ID:5844079

An assessment of the available US resources for producing SNG via the anaerobic digestion of plant material grown for that purpose concludes that the three most important requirements - the appropriate plant species, suitable land, and viable conversion technology - can probably support an eventual SNG-production rate of 7-11 trillion SCF/yr. The biomass plantations needed to produce this volume would cover about 75-100 million acres of land. The preferred plants include fast-growing deciduous trees (poplars, cottonwoods, soft maples, etc.) as well as certain perennial grasses such as Bermuda grass; such species could yield 8-10 dry tons/acre. SNG from the deciduous plant materials would cost about $3.75-$5.00/1000 SCF; from the grasses, $2.80-$3.70/1000 SCF. The total investment, including the cost of the plantations, would range from $1.80 to $3.40/SCF-day of production capacity (assuming 1975 prices and capacities of 50-250 million SCF/day). The study recommends a laboratory investigation of anaerobic-digestion processes.

OSTI ID:
5844079
Resource Relation:
Other Information: AGA Cat. No. M80779
Country of Publication:
United States
Language:
English