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1. 发明授权

US06916756B2 Regeneration of a dehydrogenation catalyst 失效
标题翻译：脱氢催化剂的再生
公开(公告)号：US06916756B2
公开(公告)日：2005-07-12
申请号：US10432998
申请日：2001-12-03
申请人： Goetz-Peter Schindler , Werner Magin , Klaus Harth
发明人： Goetz-Peter Schindler , Werner Magin , Klaus Harth
IPC分类号： B01J38/14 , B01J23/62 , B01J23/90 , B01J23/96 , B01J38/12 , B01J38/18 , B01J38/10
CPC分类号： B01J23/96 , B01J23/90 , B01J38/12 , B01J38/18 , C07C5/48 , C07C2523/04 , C07C2523/10 , C07C2523/14 , C07C2523/42 , C07C2523/63 , Y02P20/52 , Y02P20/584 , C07C11/06
摘要： A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000 h−1; (b) passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 2 to 20 bar and a gas hourly velocity of from 1000 to 50 000 h−1 for from 0.25 to 24 hours while increasing the oxygen concentration stepwise or continuously from an initial value of from 0.01 to 1% by volume of O2 to a final value of from 10 to 25% by volume of O2; (c) optionally passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 0.5 to 20 bar and a gas hourly velocity of from 10 to 500 h−1 for from 0.25 to 100 h, with the oxygen concentration being from 10 to 25% by volume of O2; (d) optionally changing the pressure repeatedly, rapidly and in opposite directions by a factor of from 2 to 20 within the range from 0.5 to 20 bar; (e) flushing with an inert gas; (f) activating the catalyst by means of hydrogen; where at least one of the steps (c) or (d) is carried out and the entire regeneration process is carried out at from 300 to 800° C.
摘要翻译：用于再生脱氢催化剂的方法包括步骤（a） - （f）：（a）在0.5-2.0巴的压力和1000-500,000小时的气时速度下用惰性气体冲洗 - 1 ; （b）使包含惰性气体的含氧气体混合物通过催化剂，压力为2至20巴，气时速度为1000至50 000小时-1以下，为0.25 至24小时，同时从0.01至1体积％O 2的初始值逐步或连续地增加氧浓度至最终值为10至25体积％的O 2， 2 （c）任选地将包含惰性气体的含氧气体混合物通过催化剂在0.5至20巴的压力和10至500小时-1的气体时速下从0.25 至100小时，其中氧浓度为10至25体积％的O 2; （d）任选地在0.5至20巴的范围内重复地，快速地和相反方向将压力改变2至20倍; （e）用惰性气体冲洗; （f）用氢活化催化剂; 其中执行步骤（c）或（d）中的至少一个，并且整个再生过程在300至800℃下进行。

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