公开(公告)号：US20190126242A1

公开(公告)日：2019-05-02

申请号：US16151416

申请日：2018-10-04

Applicant: Clariant Corporation

Inventor： Rong XING ,  Vladimir FRIDMAN

IPC: B01J23/00 ,  B01J21/04 ,  B01J21/08 ,  B01J23/08 ,  B01J37/02 ,  B01J37/08

Abstract: This disclosure relates to catalyst compositions including gallium and a zirconium-based mixed oxide support, to methods for making such catalysts, and to methods for dehydrogenating hydrocarbons with such catalysts. For example, in one embodiment, a catalyst composition includes a mixed oxide support comprising at least about 50 wt. % of zirconium oxide, the mixed oxide support being present in the composition in an amount within the range of about 40 wt. % to about 99.9 wt. %; and disposed on the support, gallium, present in the composition in an amount within the range of about 0.1 wt. % to about 30 wt. %, calculated as Ga2O3 on a calcined basis.

公开(公告)号：US20180214852A1

公开(公告)日：2018-08-02

申请号：US15865517

申请日：2018-01-09

Applicant: Clariant Corporation

Inventor： Vladimir FRIDMAN

IPC: B01J23/26 ,  C07C5/03 ,  B01J37/08 ,  B01J37/02 ,  B01J37/00

CPC classification number: B01J23/26 ,  B01J21/04 ,  B01J37/0009 ,  B01J37/0018 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/04 ,  B01J37/08 ,  B01J37/088 ,  C07C5/03 ,  C07C2521/04 ,  C07C2523/26

Abstract: The present disclosure relates to methods for making chromium-containing dehydrogenation catalysts using chromium feedstocks that need not include chromium(VI). The disclosure also relates to the catalysts made thereby, as well as to dehydrogenation methods using such catalysts. In one aspect of the disclosure, a method includes providing a formable mixture comprising, on a dry basis, an aluminum hydroxide, present in an amount within the range of about 40 wt. % to about 90 wt. %; an acid (e.g., nitric acid), present in an amount within the range of about 2 wt. % to about 15 wt. %; and a chromium(III) source, present in an amount within the range of about 2 wt. % to about 35 wt. %; forming the formable mixture; and calcining the formed mixture. In certain embodiments, the method further includes impregnating the calcined mixture with an aqueous impregnation solution including a chromium(III) salt; and calcining the impregnated mixture.

公开(公告)号：US20200223767A1

公开(公告)日：2020-07-16

申请号：US16246682

申请日：2019-01-14

Applicant: CLARIANT CORPORATION

Inventor： Rong XING ,  Vladimir FRIDMAN

IPC: C07C5/32 ,  B01J23/63 ,  B01J23/10 ,  B01J23/656 ,  B01J23/89 ,  B01J23/00 ,  B01J21/04 ,  B01J21/12 ,  B01J37/08 ,  B01J37/03 ,  B01J37/02

Abstract: This disclosure relates to catalysts comprising gallium, cerium, and a mixed oxide support useful in the dehydrogenation of hydrocarbons, to methods for making such catalysts, and to methods for dehydrogenating hydrocarbons with such catalysts. For example, in one embodiment, a catalyst composition includes gallium oxide, present in the composition in an amount within the range of about 0.1 wt. % to about 30 wt. %, cerium oxide, present in the composition in an amount within the range of about 0.1 wt. % to about 15 wt. %, a promoter, M1, selected from Pt, Ir, La, or a mixture thereof, present in the composition in an amount within the range of about 0.005 wt. % to about 4 wt. %, a promoter, M2, selected from the group 1 elements (e.g., Li, Na, K, Cs), present in the composition in an amount within the range of about 0.05 wt. % to about 3 wt. %, and a support, S1, selected from alumina, silica, zirconia, titania, or a mixture thereof, present in the composition in an amount within the range of about 60 wt. % to about 99 wt. %.

公开(公告)号：US20150259265A1

公开(公告)日：2015-09-17

申请号：US14210610

申请日：2014-03-14

Applicant: CLARIANT CORPORATION

Inventor： Vladimir FRIDMAN ,  Michael A. URBANCIC

IPC: C07C5/333

CPC classification number: C07C5/3332 ,  B01J23/002 ,  B01J23/26 ,  B01J23/8892 ,  B01J23/92 ,  B01J35/0006 ,  B01J35/023 ,  B01J37/0201 ,  B01J37/03 ,  B01J37/04 ,  B01J37/18 ,  B01J38/12 ,  B01J2523/00 ,  C07C2521/04 ,  C07C2523/04 ,  C07C2523/26 ,  C07C2523/72 ,  C07C2523/86 ,  Y02P20/52 ,  Y02P20/584 ,  C07C11/06 ,  C07C11/09 ,  B01J2523/17 ,  B01J2523/23 ,  B01J2523/31 ,  B01J2523/67 ,  B01J2523/72 ,  B01J2523/13 ,  B01J2523/25 ,  B01J2523/305

Abstract: The disclosure provides an improved endothermic hydrocarbon conversion process that comprises reacting a hydrocarbon with a multi-component catalyst bed, and regenerating the catalyst bed with air, where the air used in regeneration step and hydrocarbon are at low air to hydrocarbon ratios and optionally at near-atmospheric pressures.

Abstract translation: 本公开提供了一种改进的吸热烃转化方法，其包括使烃与多组分催化剂床反应，并且用空气再生催化剂床，其中在再生步骤中使用的空气和烃处于低的空气与烃比，并且任选地在近 大气压力。

公开(公告)号：US20140273794A1

公开(公告)日：2014-09-18

申请号：US14205554

申请日：2014-03-12

Applicant: CLARIANT CORPORATION

Inventor： Vladimir FRIDMAN ,  Sunil S. PANDITRAO

IPC: B01J8/00

CPC classification number: B01J8/008 ,  B01J8/0285 ,  B01J8/0496 ,  B01J23/26 ,  B01J38/04 ,  B01J2208/00371 ,  B01J2208/00637

Abstract: A procedure for shutting down a dehydrogenation reactor having a catalyst bed with a chromium-containing catalyst operating at a first elevated temperature comprises cooling the catalyst bed with a first cooling gas to a second elevated temperature lower than the first elevated temperature, removing the first cooling gas, introducing a reducing gas to the catalyst bed, cooling the catalyst bed with a second cooling gas from the second elevated temperature to a third elevated temperature, removing the reducing gas, cooling the catalyst bed to a fourth elevated temperature, and introducing air to cool the catalyst to ambient temperature, whereby the dehydrogenation reactor is shut down. The second cooling gas may be the same as, or different from, the reducing gas. Moreover, the reducing gas may be purged from the reactor by a third cooling gas.

Abstract translation: 用于关闭具有在第一升高温度下操作的含铬催化剂床的催化剂床的脱氢反应器的方法包括用第一冷却气体将催化剂床冷却至低于第一升高温度的第二升高温度，除去第一冷却 气体，将还原气体引入到催化剂床中，用第二冷却气体将催化剂床从第二升高温度冷却至第三升高温度，除去还原气体，将催化剂床冷却至第四升高温度，并将空气引入 将催化剂冷却至环境温度，从而关闭脱氢反应器。 第二冷却气体可以与还原气体相同或不同。 此外，还原气体可以通过第三冷却气体从反应器中清除。