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US 9,039,790 B2Granted
Hydroprocessing of fats, oils, and waxes to produce low carbon footprint distillate fuels
AssigneeUop LLC
InventorTom N. Kalnes
Life of this patent
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Abstract
Methods for making a fuel composition comprising contacting one or more components of a hydroprocessing feedstock, for example both a fatty acid- or triglyceride-containing component and a paraffin-rich component, with hydrogen under catalytic hydroprocessing conditions are disclosed. The methods are effective to upgrade the component(s) and provide a hydroprocessed biofuel. A representative method utilizes a single-stage process in which hydrogen-containing recycle gas is circulated through both a hydrodeoxygenation zone and a hydrocracking zone in series.
Claims7
A method for making a fuel composition, the method comprising:
- contacting a fatty acid- or triglyceride-containing component and a paraffin-rich component with hydrogen under catalytic hydroprocessing conditions to provide a hydroprocessed biofuel product, wherein the paraffin-rich component is derived from biomass by a combination of gasification and Fischer-Tropsch synthesis;
- fractionating the hydroprocessed biofuel product of the contacting of the fatty acid or triglyceride-containing component and the paraffin-rich component with hydrogen, wherein fractionating comprises feeding a hydrogen-containing stripping gas into a hot high pressure separator to selectively separate the hydroprocessed biofuel product into an overhead portion exiting the hot high pressure separator;
- further fractionating the overhead portion comprising the hydroprocessed biofuel product to recover lower boiling hydrocarbons comprising C4− hydrocarbons and generating, from at least a portion of the C4− hydrocarbons, at least a portion of the hydrogen for contacting with the fatty acid- or triglyceride-containing component and the paraffin-rich component;
- and
- wherein the hydroprocessed biofuel product comprises a hydroprocessed aviation biofuel comprising less than about 10% of the C16 hydrocarbons entering the separator as an effluent from a hydroprocessing reactor.
2 more elements
Dependencies are inferred from the claim text.