Patent · US Active

Optimized thermal separation by prior gas exchange

US11834399B2 · kind B2 · utility

0Cited by

10References

20Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Alexander Brächer · Haltern am See, DE
Ana Markovic · Haltern am See, DE
Anna Chiara Sale · Recklinghausen, DE
Dirk Fridag · Haltern am See, DE
Johannes Knossalla · Gahlen, DE
Peter Kucmierczyk · Herne, DE
Robert Franke · Marl, DE

Key dates

Filing date	Feb 6, 2023
Grant date	Dec 5, 2023
Priority date	—
Expiry date	Feb 6, 2043

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/845
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process can be used for preparing aldehydes from C2 to C20 olefins with a subsequent thermal separation for removal of the aldehyde formed. The process involves a membrane separation, which is preceded by performance of a gas exchange by which the proportion of the partial pressure represented by carbon monoxide or hydrogen is increased in order to reduce catalyst losses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.