Back to results
US 2025/0019324 A1Published application
Systems and methods for producing high purity aromatics from a mixed aromatic feed stream
AssigneeVirent, Inc.
InventorsPaul G. Blommel, Matthew Van Straten, Brice Dally
Life of this patent
Estimating the term…
Abstract
The present disclosure provides systems and methods for producing aromatic compounds in high yield from a mixed aromatic feed stream. Also disclosed are systems and methods for producing aromatic compounds in high yield from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like.
Claims21
A method for separating an aromatic compound from a mixed aromatic feed stream, the method comprising:
- (i) contacting a mixed aromatic feed stream comprising C7-10 aromatic hydrocarbons with an aromatics processing catalyst to produce a product stream comprising C8 aromatics,
- wherein the aromatics processing catalyst comprises a transalkylation catalyst, a dealkylation catalyst, a hydrocracking catalyst, or a combination thereof,
- wherein the mixed aromatic feed stream comprises greater than 1 wt % of non-aromatic components based on the total weight of the mixed aromatic feed stream, and wherein the mixed aromatic feed stream is substantially free of (a) C12+ aromatics and (b) co-boiling contaminants for benzene, toluene, and a combination thereof;
- and
- (ii) fractionating the product stream to separate an aromatic compound from the product stream, which comprises:
- feeding the product stream comprising C8 aromatics to a first distillation column that fractionates the product stream to separate a C7− stream from a C8+ stream;
- and
- feeding the C8+ stream to a third distillation column that fractionates the C8+ stream into a C8 stream and a C9+ stream, wherein the Cs stream comprises the C8 aromatics.
5 more elements
(canceled)
(canceled)
21-24. (canceled)
Dependencies are inferred from the claim text.