公开(公告)号：US20240278226A1

公开(公告)日：2024-08-22

申请号：US18582047

申请日：2024-02-20

申请人： VIRENT, INC. ,  JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED

发明人： Colin Anson ,  Edgar Steenwinkel ,  Matt van Straten ,  Ian Campbell

IPC分类号： B01J38/70 ,  B01J23/46 ,  B01J23/96 ,  B01J38/02 ,  B01J38/12 ,  C07C1/22

CPC分类号： B01J38/70 ,  B01J23/462 ,  B01J23/96 ,  B01J38/02 ,  B01J38/12 ,  C07C1/22 ,  C07C2523/46

摘要： The present disclosure provides systems and methods for regenerating a hydrogenation catalyst with reduced water consumption and/or shortened overall regeneration time. The method can include contacting a fouled hydrogenation catalyst with a first flushing medium comprising water and a gaseous phase comprising oxygen and optionally a second flushing medium comprising water and a gaseous phase comprising at least 90% nitrogen by volume. The method can further include treating the effluents of the flushing mediums by ion exchange resin to remove impurities in the effluents.

公开(公告)号：US20230072588A1

公开(公告)日：2023-03-09

申请号：US17891093

申请日：2022-08-18

申请人： VIRENT, INC. ,  JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED

发明人： Paul G. Blommel ,  Colin Anson ,  Matt van Straten ,  Edgar Steenwinkel ,  Chris Holland ,  Rauf Gearing ,  Chris Ferguson ,  Rob Wild ,  Ian Campbell

IPC分类号： B01J38/70 ,  B01J23/46 ,  B01J23/96 ,  B01J21/18 ,  C13K1/02

摘要： The present disclosure provides methods for producing a regenerated hydrogenation catalyst from a fouled hydrogenation catalyst having a total surface area and at least one associated impurity. The method can include maintaining contact between the fouled hydrogenation catalyst and a flushing medium that comprises water, oxygen, and an inert or diluent gas at a regeneration temperature and a regeneration pressure sufficient to remove at least a portion of the at least one impurity from the hydrogenation catalyst to produce the regenerated hydrogenation catalyst, where the regenerated hydrogenation catalyst is characterized as retaining at least 70% of the activity of the hydrogenation catalyst.

公开(公告)号：US20240246069A1

公开(公告)日：2024-07-25

申请号：US18416818

申请日：2024-01-18

申请人： Virent, Inc.

发明人： Edgar Steenwinkel ,  Matt Van Straten ,  Paul Blommel ,  Colin Anson ,  George Tyson ,  Dana M. Hatch

IPC分类号： B01J38/18 ,  B01J23/46

CPC分类号： B01J38/18 ,  B01J23/462

摘要： The present disclosure provides systems and methods for producing a regenerated hydrogenation catalyst used for hydrogenating a biomass feedstock. The method can include a regeneration cycle, in which a fouled hydrogenation catalyst is contacted with (a) a first flushing medium comprising water and a gaseous phase comprising oxygen and (b) a second flushing medium comprising water and a gaseous phase comprising at least 90% nitrogen by volume. In particular, multiple regeneration cycles can be used to improve efficiency in removing sulfur-containing impurities from the fouled catalyst.

公开(公告)号：US20240342696A1

公开(公告)日：2024-10-17

申请号：US18632208

申请日：2024-04-10

申请人： VIRENT, INC.

发明人： Colin Anson ,  Edgar Steenwinkel

IPC分类号： B01J37/02 ,  B01J21/18 ,  B01J23/656 ,  B01J33/00 ,  B01J35/30 ,  B01J37/08 ,  B01J37/18 ,  C01B3/32

CPC分类号： B01J37/024 ,  B01J21/18 ,  B01J23/6567 ,  B01J33/00 ,  B01J35/392 ,  B01J35/394 ,  B01J37/0236 ,  B01J37/08 ,  B01J37/18 ,  C01B3/326 ,  C01B2203/0227 ,  C01B2203/107 ,  C01B2203/1082 ,  C01B2203/1211

摘要： The present disclosure provides an improved method for preparing a carbon supported Pt—Re catalyst (Pt—Re/C) using a soluble non-chlorinated Pt material as a Pt source. The catalysts prepared by the methods described herein can achieve the same level of catalytic capacity as that of the catalysts prepared by the conventional method using chlorinated Pt precursors.