International Journal of Chemical Engineering / 2012 / Article / Tab 1

Review Article

Biofuels Production from Biomass by Thermochemical Conversion Technologies

Table 1

Advantages of thermochemical conversion of biomass over biological/biochemical process.

ThermochemicalBiological/biochemical

(1) Effectively applied to almost any biomass feedstockInvolves the use of microbes, enzymes, and/or chemicals to utilize the limited range of biomass
(2) Relatively higher productivity (production per unit time) due to completely chemical nature of reactionProductivity is limited due to biological conversion. Increase would require higher capital investment such as bigger reactor
(3) Multiple high-value products possible using fractional separation of productsNormally, limited to one or few products and would require additional microbial culture, enzymes for more products
(4) Independent of climate conditions, operates at much higher temperature range, therefore, effect of ambient temperature will be minimalMostly susceptible to ambient temperature, and so forth such as anaerobic digester, sunlight for algal ponds
(5) Mostly complete utilization of the waste/biomassProduction of secondary wastes such as biomass sludge

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