公开(公告)号：WO2021044343A1

公开(公告)日：2021-03-11

申请号：PCT/IB2020/058217

申请日：2020-09-03

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： AL WAHEDI, Yasser ,  BASINA, Georgia ,  GABER, Dina Ali ,  GABER, Safa Ali ,  ELMUTASIM, Omer

IPC: B01J35/00 ,  B01J35/10 ,  B01J23/745

Abstract: Embodiments include heterogeneous catalysts for the selective oxidation of hydrogen sulfide to sulfur that may include a mesoporous material including a plurality of voids; and one or more active catalyst nanoparticles at least partially encapsulated in one or more of the plurality of voids. Embodiments further includes methods of catalytic selective oxidation of hydrogen sulfide to sulfur that may include contacting hydrogen sulfide and oxygen in the presence of said heterogeneous catalysts to produce a product stream including sulfur. Embodiments also include methods of making said heterogeneous catalysts and the like.

公开(公告)号：WO2022003591A1

公开(公告)日：2022-01-06

申请号：PCT/IB2021/055862

申请日：2021-06-30

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ALWAHEDI, Yasser ,  POLYCHRONOPOULOU, Kyriaki ,  LU, Xinnan ,  GABER, Safa ,  GABER, Dina ,  BASINA, Georgia ,  SAMIR, Malathe

IPC: B01J27/185 ,  B01J37/08 ,  B01J37/28

Abstract: Embodiments include hydrogenating catalysts and methods of making the same. The catalyst includes nanoparticles of a metal phosphide, such as nickel phosphide with a Ni5P4 phase. Also included are methods of hydrogenating a gas that contains sulfur. The methods include directing the gas containing sulfur to a catalyst that includes nanoparticles of a metal phosphide, and contacting the catalyst with the gas containing sulfur to produce a hydrogenated gas.

公开(公告)号：WO2021059004A1

公开(公告)日：2021-04-01

申请号：PCT/IB2019/058169

申请日：2019-09-26

Applicant: ABU DHABI NATIONAL OIL COMPANY ,  KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： AL WAHEDI, Yasser ,  AL YAFEI, Shaima Hamad ,  BASINA, Georgia ,  TZITZIOS, Vasileios

IPC: C10G25/00 ,  B01J20/28 ,  B01J20/30 ,  B01D53/52 ,  B82Y40/00

Abstract: The present invention relates yolk-shell nanoparticles having both a high stability towards sintering and high H2S adsorption capacities, the use of the yolk-shell nanoparticles in a method for H2S removal from gas streams, and a corresponding method for H2S removal from gas streams also comprising the regeneration of the yolk-shell nanoparticles, wherein the yolk-shell nanoparticles provide for high H2S adsorption capacities and/or high reusability.