Endothermic gas phase catalytic dehydrogenation process

US10150716B2 · kind B2 · utility

Assignee

• Borealis AG · AT

Inventor

• Guhan Mathivanan · Linz, AT

Key dates

• Filing date: Sep 22, 2015
• Grant date: Dec 11, 2018
• Expiry date: Sep 22, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An endothermic catalytic dehydrogenation process conducted in gas phase in system including a reactor with a catalyst bed including an inorganic catalytic material and a first inert material including the steps of: feeding a first stream having an alkane of the formulae I CnH2n+1R1 with n≥3 and R1═H or aryl to be dehydrogenated into the reactor, and simultaneously or subsequently feeding a second stream including a mixture of an inert gas and a reactive gas selected from the group of alkanes of the formulae II CmH2m+2 with m≥2, or alkenes of the formulae III CmH2m with m≥2. The alkane to be dehydrogenated of formulae I in first stream has at least one more carbon atom than the alkane of formulae II and alkene of formulae III in the second stream.