公开(公告)号：US09511356B2

公开(公告)日：2016-12-06

申请号：US14577495

申请日：2014-12-19

Applicant: Reliance Industries Limited

Inventor： Shashank Dattatraya Vaidya ,  Sharad Vasudeorao Lande ,  Sreedharan Unnikrishnan ,  Kalpana Gopalakrishnan ,  Raksh Vir Jasra

IPC: B01J23/96 ,  B01J38/02 ,  B01J38/10 ,  B01J38/12 ,  B01J38/18 ,  B01J38/20 ,  B01J38/44 ,  B01J21/04 ,  B01J23/62 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10 ,  B01J21/12 ,  B01J21/20

CPC classification number: B01J23/96 ,  B01J21/04 ,  B01J21/12 ,  B01J21/20 ,  B01J23/626 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061 ,  B01J38/02 ,  B01J38/10 ,  B01J38/12 ,  B01J38/18 ,  B01J38/20 ,  B01J38/44

Abstract: There is provided a method for regenerating a spent dehydrogenation catalyst used in the conversion of n-paraffin to olefin. The method comprises method steps for removing the coke by treating the catalyst with an ozone-oxygen stream followed by an oxygen stream. The catalyst is stabilized by passing a nitrogen stream and the stabilized catalyst is rejuvenated by passing an air-nitrogen stream containing a halogenated hydrocarbon. This is followed by reducing the metal oxide in the catalyst by passing hydrogen-nitrogen stream.

Abstract translation: 提供了用于将正链烷烃转化为烯烃的用过的脱氢催化剂的再生方法。 该方法包括通过用臭氧 - 氧气流跟随氧气流处理催化剂来除去焦炭的方法步骤。 通过使氮气流通过使稳定的催化剂通过含有卤代烃的空气 - 氮气流来使催化剂恢复活力来稳定催化剂。 然后通过使氢 - 氮流通过还原催化剂中的金属氧化物。

公开(公告)号：US20150111720A1

公开(公告)日：2015-04-23

申请号：US14577495

申请日：2014-12-19

Applicant: Reliance Industries Limited

Inventor： Shashank Dattatraya Vaidya ,  Sharad Vasudeorao Lande ,  Sreedharan Unnikrishnan ,  Kalpana Gopalakrishnan ,  Raksh Vir Jasra

IPC: B01J23/96 ,  B01J23/62 ,  B01J21/12 ,  B01J21/20 ,  B01J21/04

CPC classification number: B01J23/96 ,  B01J21/04 ,  B01J21/12 ,  B01J21/20 ,  B01J23/626 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061 ,  B01J38/02 ,  B01J38/10 ,  B01J38/12 ,  B01J38/18 ,  B01J38/20 ,  B01J38/44

Abstract: There is provided a method for regenerating a spent dehydrogenation catalyst used in the conversion of n-paraffin to olefin. The method comprises method steps for removing the coke by treating the catalyst with an ozone-oxygen stream followed by an oxygen stream. The catalyst is stabilized by passing a nitrogen stream and the stabilized catalyst is rejuvenated by passing an air-nitrogen stream containing a halogenated hydrocarbon. This is followed by reducing the metal oxide in the catalyst by passing hydrogen-nitrogen stream.

Abstract translation: 提供了用于将正链烷烃转化为烯烃的用过的脱氢催化剂的再生方法。 该方法包括通过用臭氧 - 氧气流跟随氧气流处理催化剂来除去焦炭的方法步骤。 通过使氮气流通过使稳定的催化剂通过含有卤代烃的空气 - 氮气流来使催化剂恢复活力来稳定催化剂。 然后通过使氢 - 氮流通过还原催化剂中的金属氧化物。