Patent · US Active

Catalyst bed configuration for olefin conversion and process for obtaining olefins

US9975821B2 · kind B2 · utility

0Cited by

11References

21Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Eberhard Ernst · Linz, AT
David Linke · Berlin, DE
Mariana Stoyanova · Berlin, DE
Evgeny Kondratenko · Rostock, DE

Key dates

Filing date	Nov 13, 2014
Grant date	May 22, 2018
Priority date	—
Expiry date	Nov 13, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a catalyst bed configuration for conversion of olefins comprising i) at least one main catalyst bed comprising a) at least one first catalyst component comprising a metathesis catalyst, and b) at least one second catalyst component comprising a catalyst for double bond isomerization, and ii) at least one catalyst pre-bed arranged upstream of the at least one main catalyst bed comprising at least one compound selected from the group of alkaline earth oxides. The at least one compound used as catalyst pre-bed and selected from the group of alkaline earth oxides is subjected to a pre-treatment before arranging said at least one compound used as catalyst pre-bed upstream of the at least one main catalyst bed, wherein the pre-treatment comprises at least one cycle comprising successive treatment in an oxidizing and reducing atmosphere.

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