Process and apparatus for producing substitute natural gas

Process and apparatus for producing substitute natural gas

  • CN 105,018,166 A
  • Filed: 04/16/2009
  • Published: 11/04/2015
  • Est. Priority Date: 04/16/2008
  • Status: Active Application
First Claim
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1. prepared the method for SNG by fresh synthesis gas raw material (11) for one kind, the methanation device (10) that described method at least comprises the steps:

  • fresh synthesis gas to be passed into the adiabatic reactor (102-104) comprising at least one first adiabatic reactor (101) and at least one other series connection reacts, so that at least one other the reactor (102-104) described in each passes into the air-flow come from the preceding reactor of this methanation device, recirculation at least one described reactor is passed into at least part of reactant gases (22), it is characterized in that, described fresh synthesis gas raw material (11) is parallel to be passed in described reactor (101-104), wherein gas re-circulation is carried out in the steps below;

    get the part (22) of the reaction gas flow (20) in the first reactor (101) exit and be passed in the fresh gas flow (12) of described first reactor (101) using described air-flow part (22) as recycle gas dilution, dilution air flow (18) is obtained in the ingress of described first reactor.

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