公开(公告)号：US4650779A

公开(公告)日：1987-03-17

申请号：US755251

申请日：1985-07-15

Applicant: Theodore P. Goldstein

Inventor： Theodore P. Goldstein

IPC: B01J29/90 ,  B01J21/20 ,  B01J38/06 ,  B01J38/08 ,  B01J38/12

CPC classification number: B01J29/90

Abstract: The useful life of a deactivated inorganic pillared clay catalyst or an inorganic pillared clay sorbent saturated with a steam-distillable organic sorbate is extended by adding a small amount of ammonia to the regeneration gas or to the regeneration steam.

Abstract translation: 通过向再生气体或再生蒸汽中加入少量氨，延长了用蒸汽蒸馏有机山梨酸盐饱和的失活的无机柱状粘土催化剂或无机柱状粘土吸附剂的使用寿命。

公开(公告)号：US20220241759A1

公开(公告)日：2022-08-04

申请号：US17622716

申请日：2020-11-26

Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES ,  FORMOSA PLASTICS CORPORATION

Inventor： Sisi FAN ,  Jinming XU ,  Yanqiang HUANG ,  Hongmin DUAN ,  Tao ZHANG ,  MING-HUNG CHENG ,  Wan-tun HUNG ,  Yu-Cheng CHEN ,  Chien-Hui WU ,  Ya-Wen CHENG ,  Ming-Hsien WEN ,  Chao-Chin CHANG ,  Tsao-Cheng HUANG ,  Lu-Chen YEH

IPC: B01J27/28 ,  B01J27/24 ,  B01J38/08 ,  B01J38/02 ,  C07C17/25 ,  C07C21/06

Abstract: A regeneration method of a nitrogen-containing carbon catalyst includes the following steps: roasting the nitrogen-containing carbon catalyst in a nitrogen-containing atmosphere to obtain a regenerated nitrogen-containing carbon catalyst. The method is a universal method, which is suitable for nitrogen-doped carbon catalysts and can be used to regenerate a nitrogen-containing carbon catalyst for producing vinyl chloride (VC) through 1,2-dichloroethane cracking. The method can greatly reduce the production cost of the catalyst and increase the service life of the catalyst, and a regeneration process thereof is fast, simple, and controllable, and does not require high temperatures.

公开(公告)号：US11097264B2

公开(公告)日：2021-08-24

申请号：US16142451

申请日：2018-09-26

Applicant: BASF Corporation

Inventor： Xiaofan Yang ,  Weiyong Tang ,  Ze Zhang

IPC: B01J38/08 ,  B01J29/90 ,  B01J29/76 ,  B01D53/94 ,  B01D53/96 ,  F01N3/20 ,  F01N3/28 ,  B01J38/02 ,  B01J29/072 ,  B01J29/72 ,  B01J29/70 ,  B01J29/06 ,  B01J37/02 ,  F01N3/035 ,  F01N3/10

Abstract: The present invention provides methods for low temperature desulfating sulfur-poisoned SCR catalysts, and emission control systems adapted to apply such desulfating methods, in order to regenerate catalytic NOx conversion activity. The methods are adapted for treating an SCR catalyst to desorb sulfur from the surface of the SCR catalyst and increase NOx conversion activity of the SCR catalyst, the treating step including treating the SCR catalyst with a gaseous stream comprising a reductant for a first treatment time period and at a first treatment temperature, wherein the first treatment temperature is about 350° C. or less, followed by a second treatment time period and a second treatment temperature higher than the first treatment temperature, wherein the molar ratio of reductant to NOx during the treating step is about 1.05:1 or higher.

公开(公告)号：US09580380B2

公开(公告)日：2017-02-28

申请号：US14761890

申请日：2013-11-22

Applicant: WANHUA CHEMICAL GROUP CO., LTD. ,  WANHUA CHEMICAL (NINGBO) CO., LTD.

Inventor： Xin Li ,  Hao Chen ,  Congying Zhang ,  Shan Gao ,  Zhenguo Liu ,  Weijia Wang ,  Lei Tang ,  Zhipeng Liu ,  Yuan Li ,  Qingmei Jiang ,  Jinhong Song ,  Weiqi Hua ,  Hao Ding

IPC: C07C209/72 ,  B01J38/08 ,  B01J23/96

CPC classification number: C07C209/72 ,  B01J23/96 ,  B01J38/08 ,  C07C2601/14 ,  Y02P20/584 ,  C07C211/36

Abstract: Disclosed is a method for preparing diamino-dicyclohexyl methane (H12MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4′-MDA used as the starting material is firstly hydrogenated to prepare 4,4′-H12MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4′-MDA to the mixture of 2,4′-MDA and 4,4′-MDA, and then when the conversion is stabilized, the feed is switched to 4,4′-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4′-MDA and 4,4′-MDA. 4,4′-H12MDA having the trans-trans isomer content of 16˜24 wt % is produced, and the mixture of 2,4′-H12MDA and 4,4′-H12MDA is also produced, wherein the content of 2,4′-H12MDA in the mixture is 4˜15 wt %.

Abstract translation: 公开了通过二氨基二苯基甲烷（MDA）的氢化制备二氨基二环己基甲烷（H12MDA）的方法。 在此过程中，首先氢化4,4'-MDA作为原料，制备4,4'-H12MDA。 当催化剂的活性降低时，进料从4,4'-MDA转变为2,4'-MDA和4,4'-MDA的混合物，然后当转化稳定时，进料被切换 至4,4'-MDA。 通过将进料转化为2,4'-MDA和4,4'-MDA的混合物，使活化的催化剂在线活化。 制备反式异构体含量为16〜24重量％的4,4'-H12MDA，并且还生产2,4'-H12MDA和4,4'-H12MDA的混合物，其中2,4 混合物中的-H12MDA为4〜15重量％。

公开(公告)号：US09080524B2

公开(公告)日：2015-07-14

申请号：US14189462

申请日：2014-02-25

Applicant: Cummins Inc.

Inventor： Aleksey Yezerets ,  Krishna Kamasamudram ,  Neal W. Currier ,  Ashok Kumar ,  Michael A. Smith

IPC: F01N3/20 ,  F02D41/02 ,  F01N3/08 ,  F01N3/10 ,  B01J38/06 ,  B01J38/08 ,  B01J38/56 ,  B01J38/04 ,  F01N11/00

CPC classification number: F02D41/0235 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  B01J38/56 ,  F01N3/0885 ,  F01N3/106 ,  F01N3/2033 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N2550/02 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/1404 ,  Y02T10/24

Abstract: System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.

Abstract translation: 公开了用于处理暴露于一定量硫的还原催化剂的系统，装置和方法。 还原催化剂的处理包括在还原催化剂的上游位置提供流体物流。 流体流包括温度和还原剂量，并且还原剂量包括一定量的尿素，氨或烃。

公开(公告)号：US20140271389A1

公开(公告)日：2014-09-18

申请号：US14288526

申请日：2014-05-28

Applicant: Cummins Inc.

Inventor： Aleksey Yezerets ,  Neal W. Currier ,  Timothy R. Frazier ,  Andrew S. Osburn ,  Krishna Kamasamudram

IPC: B01J38/08 ,  B01D53/94

CPC classification number: B01J38/08 ,  B01D53/90 ,  B01D53/94 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01P2060/18 ,  Y02A50/2325 ,  Y02T10/24

Abstract: There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.

Abstract translation: 公开了用气态氨填充耗尽或废弃的固体储存介质的方法和系统。

公开(公告)号：US07576023B2

公开(公告)日：2009-08-18

申请号：US11103002

申请日：2005-04-11

Applicant: Garland B. Brignac ,  Michele S. Touvelle ,  Randolph J. Smiley

Inventor： Garland B. Brignac ,  Michele S. Touvelle ,  Randolph J. Smiley

IPC: B01J38/56 ,  B01J38/08 ,  B01J23/00

CPC classification number: B01J35/10 ,  B01J23/882 ,  B01J35/002 ,  B01J35/1061 ,  C10G45/02 ,  C10G45/04 ,  C10G45/06 ,  C10G45/08 ,  C10G45/10

Abstract: Naphtha is selectively hydrodesulfurized in the presence of a sulfided, treated catalyst comprising at least a Group VIB metal catalytic component, to produce sulfur-reduced naphtha with reduced olefin loss due to saturation. The catalyst is treated with hydrogen, a selectively deactivating agent which deactivates its hydrogenation activity, and a protective agent which preserves its hydrodesulfurization activity during the treatment.

Abstract translation: 在包含至少一种VIB族金属催化组分的硫化处理过的催化剂的存在下，石脑油被选择性地加氢脱硫，以产生由于饱和而使烯烃损失降低的减硫石脑油。 催化剂用氢气去除其氢化活性的选择性钝化剂，以及在处理过程中保持其加氢脱硫活性的保护剂。

公开(公告)号：US20050182254A1

公开(公告)日：2005-08-18

申请号：US11055101

申请日：2005-02-11

Applicant: Keisuke Sugita ,  Masaru Kitamura ,  Masahiro Hoshino

Inventor： Keisuke Sugita ,  Masaru Kitamura ,  Masahiro Hoshino

IPC: C07D223/10 ,  B01J29/035 ,  B01J29/90 ,  B01J38/06 ,  B01J38/08 ,  B01J38/12 ,  B01J38/18 ,  B01J38/62 ,  B01J38/66 ,  C07B61/00 ,  C07D201/04 ,  C07D201/14 ,  B01J38/04

CPC classification number: B01J38/08 ,  B01J29/90 ,  B01J38/12 ,  B01J38/66 ,  C07D201/04 ,  Y02P20/52 ,  Y02P20/584

Abstract: A method for producing ε-caprolactam and a method for reactivating a zeolite catalyst for the production are provided. In the reactivation step, a zeolite catalyst is allowed to contact a gas containing a carboxylic acid, water and a compound selected from ammonia and amines. In accordance with the present invention, the catalytic activities of a zeolite catalyst used for the Beckmann rearrangement reaction of cyclohexanone oxime can be effectively restored. Consequently, ε-caprolactam may be produced with a high production yield for a long period of time by reusing the catalyst by the method described above.

Abstract translation: 提供了制备ε-己内酰胺的方法和用于再生催化剂的方法。 在再活化步骤中，使沸石催化剂与含有羧酸，水和选自氨和胺的化合物的气体接触。 根据本发明，可以有效地恢复用于环己酮肟的贝克曼重排反应的沸石催化剂的催化活性。 因此，通过上述方法重新使用催化剂，可以长期生产ε-己内酰胺。

公开(公告)号：US5695724A

公开(公告)日：1997-12-09

申请号：US557088

申请日：1995-12-05

Applicant: Shiou-Shan Chen ,  Shyh-Yuan Hwang ,  Slawomir A. Oleksy ,  Sanjeev Ram

Inventor： Shiou-Shan Chen ,  Shyh-Yuan Hwang ,  Slawomir A. Oleksy ,  Sanjeev Ram

IPC: B01J20/34 ,  B01J23/04 ,  B01J23/78 ,  B01J23/94 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  C07B61/00 ,  C07C5/333 ,  C07C5/42 ,  C07C15/44 ,  C07C15/46 ,  B01J8/02

CPC classification number: C07C5/3332 ,  B01J23/04 ,  B01J23/78 ,  B01J23/94 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  C07C2523/04 ,  C07C2523/745 ,  C07C2523/78 ,  Y02P20/584

Abstract: A method and associated apparatus for regenerating and/or stabilizing catalyst used in dehydrogenation of alkylaromatic hydrocarbons is disclosed. The alkylaromatic hydrocarbon (1) and steam (2) are combined to form feedstream (3) and pass into reactor (50). The ensuing product stream (4) is reheated in heater (52) to restore the heat lost and passed as partially converted reactant stream (5) into second reactor (54) and leaves as stream (6) comprising the dehydrogen product. Restoration and/or stabilization of catalyst is accomplished by an alkali metal compound which is fed into feedstream (2) and/or product stream (5) via supply means (46 and 66), respectively. The amount of alkali metal compound entering the reactor(s) is monitored by means (42 and 62) which may in turn be coupled to activating means (44 and 64) to signal and activate the supply means. This method and apparatus permit the restoration and/or stabilization of the catalyst to be performed without interrupting the dehydrogenation reaction.

Abstract translation: PCT No.PCT / US94 / 07474 Sec。 371 1995年12月5日第 102（e）日期1995年12月5日PCT提交1994年6月30日PCT公布。 第WO95 / 01947号公报 公开了一种用于烷基芳族烃脱氢中用于再生和/或稳定催化剂的方法和相关装置，1995年1月19日。 将烷基芳族烃（1）和蒸汽（2）组合以形成原料流（3）并进入反应器（50）。 随后的产物流（4）在加热器（52）中再加热以恢复热量的损失，并且作为部分转化的反应物流（5）进入第二反应器（54）并作为包含脱氢产物的流（6）离开。 催化剂的还原和/或稳定通过分别经由供给装置（46和66）进料到进料流（2）和/或产物流（5）中的碱金属化合物来实现。 通过装置（42和62）监测进入反应器的碱金属化合物的量，该装置又可耦合到激活装置（44和64）以发出信号并激活供应装置。 该方法和装置允许催化剂的恢复和/或稳定化而不中断脱氢反应。

公开(公告)号：US5686369A

公开(公告)日：1997-11-11

申请号：US467301

申请日：1995-06-06

Applicant: Shiou-Shan Chen ,  Shyh-Yuan Hwang ,  Slawomir A. Oleksy ,  Sanjeev Ram

Inventor： Shiou-Shan Chen ,  Shyh-Yuan Hwang ,  Slawomir A. Oleksy ,  Sanjeev Ram

IPC: B01J20/34 ,  B01J23/04 ,  B01J23/78 ,  B01J23/94 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  C07B61/00 ,  C07C5/333 ,  C07C5/42 ,  C07C15/44 ,  C07C15/46 ,  B01J38/64

CPC classification number: C07C5/3332 ,  B01J23/04 ,  B01J23/78 ,  B01J23/94 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  C07C2523/04 ,  C07C2523/745 ,  C07C2523/78 ,  Y02P20/584

Abstract: A method and apparatus are disclosed for regenerating and/or stabilizing the activity of a dehydrogenation catalyst used in dehydrogenating an alkylaromatic hydrocarbon to obtain an alkenylaromatic hydrocarbon, the method comprising the steps of continuously or intermittently adding to a reactant stream an effective amount of an alkali metal compound without interrupting the dehydrogenation reaction.

Abstract translation: 公开了用于再生和/或稳定用于脱氢烷基芳族烃的脱氢催化剂的活性以获得链烯基芳烃的方法和装置，所述方法包括以下步骤：连续或间歇地向反应物流中加入有效量的碱 金属化合物而不中断脱氢反应。