公开(公告)号：US20240246069A1

公开(公告)日：2024-07-25

申请号：US18416818

申请日：2024-01-18

Applicant: Virent, Inc.

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

IPC: B01J38/18 ,  B01J23/46

CPC classification number: B01J38/18 ,  B01J23/462

Abstract: 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：US20130261361A1

公开(公告)日：2013-10-03

申请号：US13900400

申请日：2013-05-22

Applicant: Virent, Inc.

Inventor： Paul G. Blommel ,  Li Yuan ,  Matt Van Straten ,  Warren Lyman ,  Randy D. Cortright

IPC: C07C1/207

CPC classification number: C07C1/22 ,  B01J21/04 ,  B01J23/002 ,  B01J23/462 ,  B01J23/50 ,  B01J23/72 ,  B01J23/75 ,  B01J23/80 ,  B01J23/868 ,  B01J25/00 ,  B01J29/061 ,  B01J29/44 ,  B01J29/46 ,  B01J29/48 ,  B01J35/023 ,  B01J37/0201 ,  B01J37/08 ,  B01J2229/42 ,  B01J2523/00 ,  C01B3/22 ,  C01B2203/0277 ,  C07C1/2078 ,  C07C45/002 ,  C07C45/38 ,  C07C51/00 ,  C07C67/00 ,  C07C2529/46 ,  C10G3/42 ,  C10G3/45 ,  C10G3/49 ,  C10G2400/30 ,  Y02P30/20 ,  B01J2523/17 ,  B01J2523/27 ,  B01J2523/31

Abstract: The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting alkanols to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.