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US 12,221,407 B2Granted
Systems and methods for reforming a heavy aromatic stream
AssigneeVirent, Inc.
InventorsPaul G. Blommel, Matthew Van Straten, Brice Dally
Life of this patent
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Abstract
Processes, catalysts, and reactor systems for reforming heavy aromatic compounds (C11+) into C6-8 aromatic compounds are disclosed. Also disclosed are processes, catalysts, and reactor systems for producing aromatic compounds and liquid fuels from oxygenated hydrocarbons, such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like.
Claims20
A process comprising:
- (i) catalytically reacting a feedstock stream comprising water and oxygenated hydrocarbons in the presence of hydrogen with a deoxygenation catalyst to produce a deoxygenated product stream;
- (ii) catalytically reacting the deoxygenated product stream with at least one conversion catalyst to produce a condensation product stream comprising non-aromatic hydrocarbons and aromatic hydrocarbons, wherein the non-aromatic hydrocarbons comprise a paraffin, an olefin, a naphthene, or a combination thereof, and wherein the aromatic compounds comprise an aryl, a fused aryl, a polycyclic compound, or a combination thereof;
- (iii) fractionating, using a series of distillation columns, the condensation product stream to separate an aromatics product stream and a heavy hydrocarbon stream from the condensation product stream, wherein the aromatics product stream comprises a C6 aromatic, a C7 aromatic, a C8 aromatic, or a combination thereof, and wherein the heavy hydrocarbon stream comprises C11+ compounds;
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- (iv) recycling at least a portion of the heavy hydrocarbon stream to the deoxygenation catalyst of step (i).
2 more elements
Dependencies are inferred from the claim text.