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1. 发明授权

EP3265545B1 PROCESS FOR PRODUCING A SUBSTITUTE NATURAL GAS 有权
公开(公告)号：EP3265545B1
公开(公告)日：2018-10-17
申请号：EP16707531.6
申请日：2016-02-25
申请人： Johnson Matthey Davy Technologies Limited
发明人： JANARDHANAN, Madhanakrishnan , KHAMBATI, Riyaz Ezzuddin
IPC分类号： C10L3/08
CPC分类号： C10L3/08 , C10L2290/04 , C10L2290/06 , C10L2290/10 , C10L2290/148 , C10L2290/46
摘要： A process is described for producing a substitute natural gas (SNG) comprising the steps of: feeding a first synthesis gas feed stream comprising hydrogen, methane, carbon monoxide and/or carbon dioxide in parallel to two or more bulk methanators in a first bulk methanation zone comprising a first bulk methanator and a final bulk methanator, feeding a second synthesis gas feed stream comprising hydrogen, carbon monoxide and/or carbon dioxide to one or more bulk methanators in a second bulk methanation zone comprising a first bulk methanator, each bulk methanator containing a methanation catalyst such that the feed streams are at least partially methanated, dividing the methanated gas stream recovered from the final bulk methanator in the first bulk methanation zone into a first portion and a second portion, recirculating the first portion in a recirculation loop to the first bulk methanator of the first bulk methanation zone to dilute the first synthesis gas feed stream fed to said first bulk methanator, and feeding the second portion to the first bulk methanator of the second bulk methanation zone to dilute the second synthesis gas feed stream fed to said first bulk methanator, wherein the feed pressure of the second synthesis gas feed stream is lower than the feed pressure of the first synthesis gas feed stream and the difference in pressure between the first and second feed streams is at least the pressure drop through the first bulk methanation zone.

2. 发明公开

EP3265545A1 PROCESS FOR PRODUCING A SUBSTITUTE NATURAL GAS 有权
公开(公告)号：EP3265545A1
公开(公告)日：2018-01-10
申请号：EP16707531.6
申请日：2016-02-25
申请人： Johnson Matthey Davy Technologies Limited
发明人： JANARDHANAN, Madhanakrishnan , KHAMBATI, Riyaz Ezzuddin
IPC分类号： C10L3/08
CPC分类号： C10L3/08 , C10L2290/04 , C10L2290/06 , C10L2290/10 , C10L2290/148 , C10L2290/46
摘要： A process is described for producing a substitute natural gas (SNG) comprising the steps of: feeding a first synthesis gas feed stream comprising hydrogen, methane, carbon monoxide and/or carbon dioxide in parallel to two or more bulk methanators in a first bulk methanation zone comprising a first bulk methanator and a final bulk methanator, feeding a second synthesis gas feed stream comprising hydrogen, carbon monoxide and/or carbon dioxide to one or more bulk methanators in a second bulk methanation zone comprising a first bulk methanator, each bulk methanator containing a methanation catalyst such that the feed streams are at least partially methanated, dividing the methanated gas stream recovered from the final bulk methanator in the first bulk methanation zone into a first portion and a second portion, recirculating the first portion in a recirculation loop to the first bulk methanator of the first bulk methanation zone to dilute the first synthesis gas feed stream fed to said first bulk methanator, and feeding the second portion to the first bulk methanator of the second bulk methanation zone to dilute the second synthesis gas feed stream fed to said first bulk methanator, wherein the feed pressure of the second synthesis gas feed stream is lower than the feed pressure of the first synthesis gas feed stream and the difference in pressure between the first and second feed streams is at least the pressure drop through the first bulk methanation zone.

3. 发明授权

EP3265544B1 PROCESS FOR PRODUCING A SUBSTITUTE NATURAL GAS 有权
公开(公告)号：EP3265544B1
公开(公告)日：2018-10-31
申请号：EP16707530.8
申请日：2016-02-25
申请人： Johnson Matthey Davy Technologies Limited
发明人： JANARDHANAN, Madhanakrishnan , KHAMBATI, Riyaz Ezzuddin
IPC分类号： C10L3/08
CPC分类号： C10L3/08 , C10L2290/02 , C10L2290/06 , C10L2290/08 , C10L2290/10 , C10L2290/148
摘要： A process is described for producing a substitute natural gas (SNG) comprising the steps of: feeding a feed gas comprising hydrogen, carbon monoxide and/or carbon dioxide in parallel to a first bulk methanator, a second bulk methanator and one or more subsequent bulk methanators, each bulk methanator containing a methanation catalyst such that the feed gas is at least partially methanated to form a methanated gas stream, wherein the first, second and at least one subsequent methanators are connected in series so that the feed gas to the second and each of the one or more subsequent bulk methanators is diluted with a methanated gas stream recovered from the previous bulk methanator, wherein all of the methanated gas stream recovered from the first bulk methanator is used to dilute the feed gas to the second bulk methanator, a portion of the methanated gas stream recovered from the second or one or more subsequent bulk methanators is recirculated in a recirculation loop to the first bulk methanator and used to dilute the feed gas fed to said first bulk methanator, and wherein at least one bulk methanator is located outside the recirculation loop.

4. 发明公开

EP3265544A1 PROCESS FOR PRODUCING A SUBSTITUTE NATURAL GAS 有权
标题翻译：生产替代天然气的过程
公开(公告)号：EP3265544A1
公开(公告)日：2018-01-10
申请号：EP16707530.8
申请日：2016-02-25
申请人： Johnson Matthey Davy Technologies Limited
发明人： JANARDHANAN, Madhanakrishnan , KHAMBATI, Riyaz Ezzuddin
IPC分类号： C10L3/08
CPC分类号： C10L3/08 , C10L2290/02 , C10L2290/06 , C10L2290/08 , C10L2290/10 , C10L2290/148
摘要： A process is described for producing a substitute natural gas (SNG) comprising the steps of: feeding a feed gas comprising hydrogen, carbon monoxide and/or carbon dioxide in parallel to a first bulk methanator, a second bulk methanator and one or more subsequent bulk methanators, each bulk methanator containing a methanation catalyst such that the feed gas is at least partially methanated to form a methanated gas stream, wherein the first, second and at least one subsequent methanators are connected in series so that the feed gas to the second and each of the one or more subsequent bulk methanators is diluted with a methanated gas stream recovered from the previous bulk methanator, wherein all of the methanated gas stream recovered from the first bulk methanator is used to dilute the feed gas to the second bulk methanator, a portion of the methanated gas stream recovered from the second or one or more subsequent bulk methanators is recirculated in a recirculation loop to the first bulk methanator and used to dilute the feed gas fed to said first bulk methanator, and wherein at least one bulk methanator is located outside the recirculation loop.

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