公开(公告)号：US20210331146A1

公开(公告)日：2021-10-28

申请号：US17185290

申请日：2021-02-25

Applicant: ExxonMobil Research and Engineering Company

Inventor： Yi Du ,  Bradley D. Wooler ,  Stuart L. Soled ,  Sabato Miseo ,  Christine E. Kliewer

IPC: B01J27/22 ,  B01J21/08 ,  B01J35/00 ,  B01J37/02 ,  B01J37/08 ,  C10G45/08

Abstract: This application relates to preparation of mono and bimetallic group V, VI, and VII containing carbide catalysts and the methods of using the carbide catalysts in hydroprocessing applications. A method of producing a carbide catalyst comprising: depositing a precursor metal, an acid or an amine, and an organic compound on a support thereby forming an impregnated support, wherein the organic compound has a carbon number of 10 or greater; and carbonizing the impregnated support thereby forming a carbide phase on the support.

公开(公告)号：US20200299141A1

公开(公告)日：2020-09-24

申请号：US16751945

申请日：2020-01-24

Applicant: ExxonMobil Research and Engineering Company

Inventor： Yi Du ,  Bradley D. Wooler ,  Stuart E. Smith ,  Brenda A. Raich ,  Clarence Chase ,  Lesheng Wang

IPC: C01B32/354 ,  C01B32/33

Abstract: Sulfur-crosslinked olefins, particularly sulfur-crosslinked heavy hydrocarbon products having one or more sulfur-crosslinked olefin moieties, may undergo pyrolysis to form sulfur-doped porous carbon having high BET surface area values. Pyrolysis to form the sulfur-doped porous carbon may be particularly efficacious in the presence of a hydroxide base. BET surface areas up to 2000 m2/g or even higher may be obtained. Such sulfur-doped porous carbon may be prepared by combining a heavy hydrocarbon product with sulfur, heating to a first temperature state to form a liquefied reaction mixture containing a sulfur-crosslinked heavy hydrocarbon, homogeneously mixing a hydroxide base with the liquefied reaction mixture, and pyrolyzing the sulfur-crosslinked heavy hydrocarbon to form sulfur-doped porous carbon.