Biomass and Coal into Liquid Fuel with CO2 Capture: New Single-step hydrolysis process co-converts coal and any biomass to liquid fuel

Biomass and Coal into Liquid Fuel with CO2 Capture: New Single-step hydrolysis process co-converts coal and any biomass to liquid fuel

A scientist at the U.S. Department of Energy's Savannah River National Laboratory has developed a new and efficient process to produce biofuels from coal and other biomass. The new single-step hydrolysis process co-converts coal and any biomass to a liquid fuel while generating a high purity carbon dioxide as a byproduct.
Abstract: 
For most of the twentieth century there have been numerous methods to convert coal to liquid. The three primary methods have been pyrolysis/carbonization, hydrogenation, and indirect gas-to-liquids (Fisher-Tropsch). These methods are typically energy intensive, multi-step, or economically inefficient. This new invention could have economic significance as it eliminates costly hydrogen production in coal liquifaction. It also converts lignin and cellulose easily which are unconvertible in biomass fermentation. The new liquefaction method involves the addition of a proprietary catalyst with water and autoclaved at 200-350 degrees centegrade to yield a liquefied product that is soluble in tetrahydrofuran. The process, which can substitute water for an alcohol had been found to generate 95% liquid yield with a nearly pure recoverable carbon dioxide byproduct. Data analysis of this product from coal has shown an increase in hydrogen and carbon content with a decrease in sulfur, nitrogen, oxygen, and ash.
Benefits: 
Single-step process applicable to a variety of feedstocks -Pure CO2 by-product -High yields -No hydrogen required -Patent pending
Internal Laboratory Ref #: 
SRNL-L9100-2010-00221
Lab Representatives
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