Patent · US Active

Method and device for producing synthesis gas with carbon dioxide return

US12358789B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Albrecht Heinzel · Munich, DE
Thomas Haselsteiner · Dietramszell, DE
Stefan Pleintinger · Munich, DE

Key dates

Filing date	Feb 20, 2020
Grant date	Jul 15, 2025
Priority date	—
Expiry date	Sep 24, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02C20/40
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method and to a device for producing a synthesis gas, which contains carbon monoxide and hydrogen, wherein natural gas having a first carbon dioxide partial pressure (CO2 pressure) is provided and is processed inter alia by means of a pressure increase to form a natural gas input for a thermochemical conversion, in which a synthesis raw gas having a second CO2 pressure greater than the first CO2 pressure is produced, from which synthesis raw gas at least carbon dioxide is subsequently separated in order to obtain the synthesis gas and carbon dioxide, at least some of which is returned and is used in the thermochemical conversion of the natural gas input. To separate carbon dioxide, the synthesis raw gas is conducted across the one membrane on the retentate side, which membrane is permeable to carbon dioxide and is flushed on the permeate side by the provided natural gas.

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