公开(公告)号：US11220944B2

公开(公告)日：2022-01-11

申请号：US16062266

申请日：2016-12-27

Applicant: CUMMINS INC.

Inventor： Jinyong Luo ,  Ashok Kumar ,  Krishna Kamasamudram ,  Neal W. Currier ,  Aleksey Yezerets ,  Yadan Tang ,  Michael J. Cunningham ,  Di Wang

IPC: F01N3/20 ,  F01N11/00 ,  B01J29/06 ,  B01J38/60 ,  B01J29/90 ,  B01J38/52 ,  B01J38/62

Abstract: A method of recovering selective catalytic reduction catalysts relates to metal-Zeolite based catalysts. A selective catalytic reduction catalyst service event where a metal-Zeolite based selective catalytic reduction catalyst of an exhaust aftertreatment system may perform below a threshold level of performance is determined. The selective catalytic reduction catalyst then exposed to a recovery fluid selected to facilitate movement of metal ions.

公开(公告)号：US11097258B2

公开(公告)日：2021-08-24

申请号：US16321098

申请日：2017-06-22

Applicant: IFP Energies nouvelles

Inventor： Pierre-Louis Carrette

IPC: B01J37/20 ,  B01J31/02 ,  B01J37/02 ,  B01J37/08 ,  B01J38/52 ,  B01J38/62 ,  B01J23/882 ,  B01J27/19 ,  B01J31/04 ,  B01J35/10 ,  C10G47/10 ,  C10G45/08 ,  B01J27/051 ,  B01J23/85 ,  C10G47/12 ,  B01J27/128 ,  B01J23/94 ,  B01J27/28 ,  B01J38/12 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/883

Abstract: The invention has as its object a catalyst that comprises a substrate based on alumina or silica or silica-alumina, at least one element from group VIII, at least one element from group VIB, and an organic compound of formula (I) in which R1, R2, R3, R4 and R5 are selected from among a hydrogen atom, or a hydroxyl radical, or a hydrocarbon radical that comprises from 1 to 12 carbon atoms that can also comprise at least one oxygen atom, and R6 is selected from a hydrogen atom, a hydrocarbon radical that comprises from 1 to 12 carbon atoms that can also comprise at least one oxygen atom, a methacryloyl radical, an acryloyl radical or an acetyl radical. The invention also relates to the method for preparation of said catalyst and its use in a method for hydrotreatment and/or hydrocracking.

公开(公告)号：US10737255B2

公开(公告)日：2020-08-11

申请号：US16373817

申请日：2019-04-03

Applicant: Florida State University Research Foundation, Inc.

Inventor： Hoyong Chung

IPC: C07C41/28 ,  C07C41/30 ,  C07H3/06 ,  B01J35/12 ,  B01J38/52 ,  C07C29/46 ,  C07C29/56 ,  C07C209/70 ,  C07D207/20 ,  C07D209/48 ,  C07D211/02 ,  C07D211/70 ,  C07D233/10 ,  C07D307/28 ,  C08F132/08 ,  B01J31/22 ,  B01J31/12 ,  C07C67/333 ,  C07C209/68 ,  C08B37/16 ,  B01J31/40 ,  C07D223/10 ,  C07F15/00

Abstract: A chemical reaction is catalyzed in an organic solvent using a water soluble N-heterocyclic carbene homogeneous catalyst to form a reaction mixture. An aqueous phase in the reaction mixture. A solvent in which the catalyst is insoluble is added to the reaction mixture, causing the catalyst to migrate to the aqueous phase to form a catalyst-laden aqueous phase. The catalyst is extracted from the catalyst-laden aqueous phase.

公开(公告)号：US20200031755A1

公开(公告)日：2020-01-30

申请号：US16604297

申请日：2018-04-10

Applicant: BP CHEMICALS LIMITED

Inventor： Thomas Edward Clark

IPC: C07C67/37 ,  C07C69/14 ,  B01J29/18 ,  B01J38/52

Abstract: A process for the production of methyl acetate by carbonylating dimethyl ether with carbon monoxide at a temperature of 250 to 350° C. in the presence of a zeolite catalyst and hydrogen such that the molar ratio of hydrogen to carbon monoxide is at least 1, and one or more compounds containing a hydroxyl functional group and in the absence of any added methyl acetate.

公开(公告)号：US20190275509A1

公开(公告)日：2019-09-12

申请号：US16332967

申请日：2017-09-28

Applicant: TSINGHUA UNIVERSITY

Inventor： Junhua LI ,  Xiansheng LI ,  Xiang LI ,  Yue PENG ,  Jianjun CHEN

IPC: B01J38/52 ,  B01J23/30 ,  B01J23/92 ,  B01J38/12 ,  B01D53/86 ,  B01D53/96

Abstract: The invention belongs to the field of nitrogen oxide control in environmental protection science and technology, and particularly relates to the field of regeneration and utilization of SCR denitration catalyst with calcium poisoning, that is a neutral complex cleaning liquid and a regeneration method for denitration catalyst with calcium poisoning. The present invention uses a neutral polyether surfactant as a regeneration and calcium removal reagent to achieve a poisoned catalyst regeneration method with high calcium removal rate, low loss rate of active components and excellent recovery of denitrification activity; wherein the content of the polyether surfactant is in the range of 0.1-1 wt %; by the regeneration method of the present invention, the loading of active components which is required in the conventional regeneration process can be omitted, while the corrosion of equipment and catalyst can be reduced, thus capable of regenerating the denitration catalyst with high efficiency.

公开(公告)号：US10071370B2

公开(公告)日：2018-09-11

申请号：US14411083

申请日：2013-05-16

Applicant: CHIYODA CORPORATION

Inventor： Shinichi Inoue ,  Yukitaka Wada ,  Akihiro Muto

IPC: B01J38/52 ,  B01J38/12 ,  B01J27/19 ,  B01J27/28 ,  C10G45/04 ,  B01J38/02 ,  B01J38/50 ,  B01J23/882 ,  B01J21/04 ,  B01J21/06 ,  B01J21/20 ,  B01J31/38 ,  B01J31/40 ,  B01J38/48

CPC classification number: B01J38/52 ,  B01J21/04 ,  B01J21/063 ,  B01J21/20 ,  B01J23/882 ,  B01J27/19 ,  B01J27/28 ,  B01J27/285 ,  B01J31/38 ,  B01J31/4053 ,  B01J38/02 ,  B01J38/12 ,  B01J38/48 ,  B01J38/50 ,  C10G45/04 ,  C10G2300/708

Abstract: Provided is a method of reactivating a used titania catalyst for hydrogenation treatment, capable of improving the catalytic activity of the used titania catalyst for hydrogenation treatment that is obtained by supporting a catalyst component on a titania support and exhibits reduced catalytic activity after having been used for hydrogenation treatment of a hydrocarbon oil, to a level comparable to that of a newly prepared fresh titania catalyst before use. The method of reactivating a used titania catalyst for hydrogenation treatment, the used titania catalyst for hydrogenation treatment being obtained by supporting a catalyst component on a titania support and exhibiting reduced catalytic activity after having been used for hydrogenation treatment of a hydrocarbon oil, includes: a coke removal step of removing a carbonaceous component on a surface of the used catalyst by heating the catalyst in an oxygen-containing gas atmosphere; an impregnation step of impregnating the carbonaceous component-removed catalyst obtained by the coke removal step with a saccharide-containing solution; and a drying step of drying the saccharide-impregnated catalyst obtained by the impregnation step, to obtain a catalyst in which a saccharide is supported.

公开(公告)号：US08981132B2

公开(公告)日：2015-03-17

申请号：US14252149

申请日：2014-04-14

Applicant: Dow Global Technologies LLC

Inventor： Hannah L. Crampton

IPC: C07D303/00 ,  C07D303/08 ,  B01J29/89 ,  B01J37/02 ,  B01J37/06 ,  B01J38/52 ,  C07D301/12

CPC classification number: C07D303/08 ,  B01J29/89 ,  B01J37/0203 ,  B01J37/0209 ,  B01J37/06 ,  B01J38/52 ,  C07D301/12 ,  Y02P20/584

Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.

Abstract translation: 具有MFI结构（TS-1）催化剂的预处理的钛硅沸石，其已经用甲醇预处理，然后任选地过滤并任选地空气干燥以形成预处理的活化的TS-1催化剂。 活化的TS-1可以在环氧化反应中使用，没有添加额外的甲醇，并且与使用大量过量的甲醇的TS-1具有同等的活性。 通过在反应期间除去对另外的甲醇的需要，溶剂分解的表氯醇的损失被显着地最小化。

公开(公告)号：US08728972B2

公开(公告)日：2014-05-20

申请号：US13123872

申请日：2009-10-08

Applicant: Zhiping Shan

Inventor： Zhiping Shan

IPC: B01J20/34 ,  B01J38/50 ,  B01J38/52 ,  B01J27/198

CPC classification number: B01J27/198 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/108 ,  B01J35/109 ,  B01J37/0018 ,  B01J37/06 ,  C07C51/215 ,  C07C57/145

Abstract: Embodiments of the present invention disclose improved micro-pore catalyst structures containing catalytic material comprised of mixed oxides of vanadium and phosphorus and using such improved micro-pore catalyst structures for the production of maleic anhydride.

Abstract translation: 本发明的实施方案公开了包含由钒和磷的混合氧化物组成的催化材料的改进的微孔催化剂结构，并且使用这种用于生产马来酸酐的改进的微孔催化剂结构。

公开(公告)号：US08679999B2

公开(公告)日：2014-03-25

申请号：US13755689

申请日：2013-01-31

Applicant: Aditya Birla Science and Technology Co. Ltd.

Inventor： Subbareddy Kanagasabapathy ,  Yogesh Laxman Borle ,  Bir Kapoor ,  Arati Verma

IPC: B01J38/52 ,  B01J38/04 ,  C07D301/12 ,  C07C45/00

CPC classification number: B01J21/20 ,  B01J29/89 ,  B01J29/90 ,  B01J38/12 ,  B01J38/48 ,  B01J38/52 ,  C07C37/58 ,  C07D301/12 ,  C07D303/08 ,  Y02P20/584

Abstract: Titanosilicate catalyst is used in the oxidation reactions such as allylchloride epoxidation, phenol hydroxylation, Cyclohexanone ammoximation. During the reaction the catalyst is deactivated which further decrease in the efficiency of the oxidation reactions. The present invention provides a method for an efficient regeneration of catalyst titanosilicate catalyst at low temperature below 100° C. using a gaseous mixture containing ozone, without isolating the catalyst from the reactor system.

Abstract translation: 氧化反应中使用钛硅酸盐催化剂，例如烯丙基氯化物环氧化，苯酚羟基化，环己酮氨基肟化。 在反应期间，催化剂失活，进一步降低了氧化反应的效率。 本发明提供了一种使用含有臭氧的气体混合物在低于100℃的低温下有效再生催化剂钛硅酸盐催化剂的方法，而不将催化剂与反应器系统分离。

公开(公告)号：US07838455B2

公开(公告)日：2010-11-23

申请号：US11995266

申请日：2006-06-26

Applicant: Byong Sung Kwak ,  Seung Hoon Oh ,  Tae Jin Kim ,  Dae Hyun Choo ,  Young Min Chung

Inventor： Byong Sung Kwak ,  Seung Hoon Oh ,  Tae Jin Kim ,  Dae Hyun Choo ,  Young Min Chung

IPC: B01J38/48 ,  B01J38/52

CPC classification number: B01J29/90 ,  B01J29/405 ,  B01J29/89 ,  B01J38/02 ,  B01J38/48 ,  B01J38/52 ,  B01J38/70

Abstract: Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve catalyst used in epoxidation of olefin through simple treatment using a mixture solvent comprising aqueous hydrogen peroxide and alcohol. According to the method of this invention, when the catalyst having decreased activity is regenerated, the activity of the regenerated catalyst is equal to that of new catalyst and can be maintained stable for a long period of time.

Abstract translation: 本文公开了一种再生含钛分子筛催化剂的方法。 特别地，本发明提供了通过使用包含过氧化氢水溶液和醇的混合溶剂的简单处理来再生用于烯烃环氧化的含钛分子筛催化剂的方法。 根据本发明的方法，当再生催化剂活性降低时，再生催化剂的活性与新催化剂的活性相同，长时间保持稳定。