Production of diesel fuel from biorenewable feedstocks with lower hydrogen consumption
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United States of America Patent
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Jul 19, 2011
Grant Date -
Aug 6, 2009
app pub date -
Aug 18, 2008
filing date -
Sep 20, 2007
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Abstract
A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant and animal fats and oils. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating, decarbonylating, and hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel. A sulfur containing component is added to drive the conversion preferentially through carbonylation and carbonylation with reduced hydrodeoxygenation. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties.
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