科研之友
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摘要
Fuels and chemicals produced from renewable feedstocks such as biomass offer many benefits over those produced from petroleum. These benefits include energy security, environmental preservation and sustainability, reduction in green house gas emissions, and lower raw material costs, in addition to economic and rural development. Many countries around the world are mandating and incentivizing the use of renewable fuels, for example the United States has mandated the use of 36 billion gallons of renewable liquid transportation fuels by 2022. Currently ethanol is the most common biofuel accounting for roughly 25 billion gallons in worldwide production and the majority of the production takes place in the United States and Brazil from corn starch or sugar. The use of biomass as an alternative feedstock is attractive since it does not compete for food or feed. However, biomass conversion is more complex and places unique constraints on the process and (bio)catalyst. Qteros is developing a biochemical conversion process using the microbe Clostridium phytofermentans. C. phytofermentans is cellulolytic and naturally ferments all five sugars present in biomass. Both of these properties allows for reduced production costs relative to the standard yeast-based process. In this paper we describe those properties and translate them into economic advantages.
- 出版日期2011-11
