公开(公告)号：US5776849A

公开(公告)日：1998-07-07

申请号：US942694

申请日：1992-09-09

申请人： Shun Chong Fung ,  Yao-Jyh Robert Huang ,  John Francis Walsh ,  Gary Brice McVicker ,  Kenneth Ray Clem

发明人： Shun Chong Fung ,  Yao-Jyh Robert Huang ,  John Francis Walsh ,  Gary Brice McVicker ,  Kenneth Ray Clem

IPC分类号： B01J29/62 ,  B01J29/90 ,  B01J38/44 ,  C07B61/00 ,  C07C5/387 ,  C07C5/41 ,  C07C15/04 ,  C10G35/095 ,  B01J38/42

CPC分类号： B01J29/62 ,  B01J29/90 ,  B01J38/44 ,  C10G35/095 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/40 ,  B01J2229/42

摘要： The invention is directed a process for regenerating deactivated reforming catalysts comprising at least one Group VIII metal on zeolite L, preferably wherein the catalysts are extruded using a binder material such as alumina or silica. The process includes: a) coke burn at severe conditions to improve the accessibility of the Group VIII catalytic metal particles by transporting them to the outside of the zeolite microchannels; b) catalytic metal redispersion by wet oxychlorination with elemental chlorine and oxygen; c) stripping with a gas stream comprising oxygen and water at low pressure to remove as much residual chlorine as possible; and d) reduction of catalytic metals with hydrogen at low pressure. The process is particularly effective for recovering activity of catalysts which have been severely deactivated.

摘要翻译： 本发明涉及一种在沸石L上再生含有至少一种Ⅷ族金属的失活重整催化剂的方法，优选其中使用粘合剂材料如氧化铝或二氧化硅挤出催化剂。 该方法包括：a）苛刻条件下的焦炭燃烧，通过将第八族催化金属颗粒运送到沸石微通道的外部来改善其可接近性; b）用元素氯和氧气通过湿氧氯化催化金属再分散; c）在低压下用包含氧和水的气流汽提以尽可能多地除去剩余的氯; 和d）在低压下用氢还原催化金属。 该方法对于严重失活的催化剂的回收活性特别有效。

公开(公告)号：US5756414A

公开(公告)日：1998-05-26

申请号：US940579

申请日：1992-09-04

申请人： Yao-Jyh Robert Huang ,  Shun Chong Fung ,  Gary Brice McVicker ,  Jar-lin Kao ,  John Francis Walsh ,  Kenneth Ray Clem

发明人： Yao-Jyh Robert Huang ,  Shun Chong Fung ,  Gary Brice McVicker ,  Jar-lin Kao ,  John Francis Walsh ,  Kenneth Ray Clem

IPC分类号： B01J29/62 ,  B01J29/90 ,  B01J38/44 ,  C07B61/00 ,  C07C5/387 ,  C07C5/41 ,  C07C15/04 ,  C10G35/095 ,  B01J29/38 ,  B01J38/42

CPC分类号： B01J29/62 ,  B01J29/90 ,  B01J38/44 ,  C10G35/095 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/40 ,  B01J2229/42

摘要： The present invention is a process for regenerating deactivated catalyst or redispersing catalytic metal in a fresh catalyst comprising at least one Group VIII catalytic metal, zeolite, an inert binder. The process comprises coke burn, hydrogen reduction, catalyst conditioning, oxychlorination, low pressure stripping, and low pressure final hydrogen reduction.

摘要翻译： 本发明是一种在包含至少一种VIII族催化金属，沸石，惰性粘合剂的新鲜催化剂中再生失活催化剂或再分散催化金属的方法。 该方法包括焦炭燃烧，氢还原，催化剂调节，氧氯化，低压汽提和低压最终氢还原。

公开(公告)号：US5712214A

公开(公告)日：1998-01-27

申请号：US163455

申请日：1993-12-07

申请人： Yao-Jyh Robert Huang ,  Shun Chong Fung

发明人： Yao-Jyh Robert Huang ,  Shun Chong Fung

IPC分类号： B01J29/90 ,  B01J29/62 ,  B01J38/18 ,  B01J38/44 ,  C10G35/095 ,  B01J38/42

CPC分类号： C10G35/095 ,  B01J29/62 ,  B01J29/90 ,  B01J38/44 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/40 ,  B01J2229/42

摘要： A low-pressure, high-temperature, wet post-treatment after oxyhalogenation during regeneration to improve activity and selectivity recovery of a regenerated catalyst involves exposing a halogenated catalyst to a gaseous stream including water having a partial pressure of up to about 1.5 psia, oxygen having a partial pressure of less than about 4.5 psia, and an inert gas at a temperature within the range of about 450.degree. C. to about 530.degree. C. at a pressure within the range of about 14.7 psia to about 65 psia for a time sufficient to effect a hydrogen halide partial pressure in offgas from the halogenated catalyst of less than about 0.004 psia to effectively remove excess halide from the halogenated catalyst.

摘要翻译： 在再生期间在卤代卤化后的低压，高温，湿后处理以改善再生催化剂的活性和选择性回收率包括将卤化催化剂暴露于包含高达约1.5psia的分压的水的气流，氧气 具有小于约4.5psia的分压和在约450℃至约530℃的温度范围内的惰性气体，在约14.7psia至约65psia范围内的压力下一段时间 足以使小于约0.004psia的来自卤代催化剂的废气中的卤化氢分压，以有效地从卤化催化剂除去多余的卤化物。