UK venture deploys gravity pressure vessel technology: realizing 63 gallons of ethanol per tonne from solid waste

In England, Maltings Organic Treatment and AqueGen are progressing on a $65 million waste-to-ethanol project in York that will be fully operational in 2011 with a capacity of 26 Mgy, realizing a yield of 63 gallons per dry ton of biomass. The company is using gravity pressure vessel technology, similar to that employed by Agresti Biofuels in the US and Asia.

In the gravity pressure vessel system, natural forces gravity and underground heat are used to convert waste into sugars, which are then fermented into ethanol or butanol.

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