公开(公告)号：US11059762B2

公开(公告)日：2021-07-13

申请号：US16660004

申请日：2019-10-22

申请人： Clariant International Ltd

发明人： Darren Adams ,  Mingyong Sun ,  Uwe Duerr ,  Denise Cooper ,  Brian Heasley ,  Ling Xu ,  Tina Clinton

IPC分类号： C07C5/09 ,  B01J21/04 ,  B01J23/44 ,  B01J31/02 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  B01J23/50 ,  B01J31/28

摘要： The present disclosure relates to methods for selectively hydrogenating acetylene, to methods for starting up a selective hydrogenation reactor, and to hydrogenation catalysts useful in such methods. In one aspect, the disclosure provides a variety of methods for starting up reactors for use in methods for selectively hydrogenating acetylene using a catalyst composition comprises a porous support, palladium, and one or more ionic liquids.

公开(公告)号：US11634370B2

公开(公告)日：2023-04-25

申请号：US16660050

申请日：2019-10-22

申请人： Clariant International Ltd

发明人： Darren Adams ,  Mingyong Sun ,  Uwe Duerr ,  Denise Cooper ,  Brian Heasley ,  Ling Xu ,  Tina Clinton

IPC分类号： C07C5/09 ,  B01J31/02 ,  B01J31/28 ,  B01J21/04 ,  B01J23/44 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  B01J23/50

摘要： The present disclosure relates to methods for selectively hydrogenating acetylene, to methods for starting up a selective hydrogenation reactor, and to hydrogenation catalysts useful in such methods. In one aspect, the disclosure provides a method for selectively hydrogenating acetylene, the method comprising contacting a catalyst composition with a process gas. The catalyst composition comprises a porous support, palladium, and one or more ionic liquids. The process gas includes ethylene, present in the process gas in an amount of at least 20 mol. %; acetylene, present in the process gas in an amount of at least 1 ppm; and 0 to 190 ppm or at least 600 ppm carbon monoxide. At least 90% of the acetylene present in the process gas is hydrogenated, and the selective hydrogenation is conducted without thermal runaway.

公开(公告)号：US11623902B2

公开(公告)日：2023-04-11

申请号：US16660119

申请日：2019-10-22

申请人： Clariant International Ltd

发明人： Darren Adams ,  Mingyong Sun ,  Uwe Duerr ,  Denise Cooper ,  Brian Heasley ,  Ling Xu ,  Tina Clinton

IPC分类号： C07C5/09 ,  B01J31/02 ,  B01J31/28 ,  B01J21/04 ,  B01J23/44 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  B01J23/50

摘要： The present disclosure relates to methods for selectively hydrogenating acetylene, to methods for starting up a selective hydrogenation reactor, and to hydrogenation catalysts useful in such methods. In one aspect, the disclosure provides a method for selectively hydrogenating acetylene, the method comprising contacting a catalyst composition with a process gas. The catalyst composition comprises a porous support, palladium, and one or more ionic liquids. The process gas includes ethylene, present in the process gas in an amount of at least 20 mol. %; and acetylene, present in the process gas in an amount of at least 1 ppm. At least 90% of the acetylene present in the process gas is hydrogenated, and the selective hydrogenation is conducted without thermal runaway. Notably, the process gas is contacted with the catalyst at a gas hourly space velocity (GHSV) based on total catalyst volume in one bed or multiple beds of at least 7,100 h−1.