Patent ID: 8969423
Filing Date: 2015-03-03
Classification: C10L

Abstract:
1. A process for the production of substitute natural gas comprising: providing a feed gas to a first and/or second and/or subsequent bulk methanator; subjecting that feed gas to methanation in the presence of a suitable catalyst; removing an at least partially reacted stream from the first bulk methanator and supplying said at least partially reacted stream to the second and/or subsequent bulk methanator where said at least partially reacted stream is subjected to further methanation; passing a product stream from the final bulk methanator to a trim methanator train where said product stream is subjected to further methanation; removing a recycle stream downstream of the first, second or subsequent bulk methanator, and, in any order, passing said recycle stream through a compressor, subjecting the recycle stream to cooling and then supplying said recycle stream to a recycle methanator for further methanation before being recycled to the first and/or second and/or subsequent methanator.