Patent · US Active

Method and device for producing lower olefins from oxygenates

US7923591B2 · kind B2 · utility

4Cited by

1References

21Claims

0Family size

Assignee

Lurgi GmbH · DE

Inventors

Gerhard Birke · Frankfurt am Main, DE
Harald Koempel · Neu-Isenburg, DE
Waldemar Liebner · Oberursel, DE
Hermann Bach · Heiligenroth, DE

Key dates

Filing date	Oct 27, 2005
Grant date	Apr 12, 2011
Priority date	—
Expiry date	Jan 31, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P30/40
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture (11) through conversion by a catalyst (20) to an olefin and paraffin-containing second reaction mixture (21) where the second reaction mixture (21) is flowed through a separation system (300), in which one at least one low olefin-containing first product stream (31) and at least one paraffin-enriched fraction (321) is extracted and where the remaining product stream (322) is at least partially recirculated to the catalyst (20).

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