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1. WO2012067754 - PROCESS FOR MAKING SYNTHETIC NATURAL GAS

Publication Number WO/2012/067754
Publication Date 24.05.2012
International Application No. PCT/US2011/057205
International Filing Date 21.10.2011
IPC
C10L 3/08 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses C10G, C10K108; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04139
08Production of synthetic natural gas
C10L 3/10 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses C10G, C10K108; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04139
10Working-up natural gas or synthetic natural gas
CPC
C10L 3/08
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
08Production of synthetic natural gas
C10L 3/104
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
10Working-up natural gas or synthetic natural gas
101Removal of contaminants
102of acid contaminants
104Carbon dioxide
Applicants
  • PRAXAIR TECHNOLOGY, INC. [US]/[US] (AllExceptUS)
  • DRNEVICH, Raymond Francis [US]/[US] (UsOnly)
Inventors
  • DRNEVICH, Raymond Francis
Agents
  • PACE, Salvatore P.
Priority Data
61/415,51219.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR MAKING SYNTHETIC NATURAL GAS
(FR) PROCÉDÉ DE FABRICATION DE GAZ NATUREL SYNTHÉTIQUE
Abstract
(EN)
The present invention relates generally to a gasification process and system for making synthetic natural gas using low purity oxygen. A portion of the cleaned syngas is shifted to a H2/CO ratio of at least 30/1 before being remixed with the other portion of the syngas to make a syngas stream having a H2/CO ratio of 1 or less. The final syngas stream is feed to the methanation unit to produce synthetic natural gas.
(FR)
La présente invention concerne d'une façon générale un procédé et un système de gazéification qui permettent de fabriquer du gaz naturel synthétique à l'aide d'oxygène de faible pureté. Une partie du gaz de synthèse purifié est convertie en un gaz ayant un rapport H2/CO d'au moins 30/1 avant d'être à nouveau mélangée avec l'autre partie du gaz de synthèse pour former un courant de gaz de synthèse ayant un rapport H2/CO inférieur ou égal à 1. Le courant de gaz de synthèse final est introduit dans l'unité de méthanation afin d'obtenir du gaz naturel synthétique.
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