公开(公告)号：US5817589A

公开(公告)日：1998-10-06

申请号：US631605

申请日：1996-04-02

申请人： Magdalena Ramirez de Agudelo ,  Zaida Hernandez de Godoy ,  Raul Navarro ,  Julia Guerra

发明人： Magdalena Ramirez de Agudelo ,  Zaida Hernandez de Godoy ,  Raul Navarro ,  Julia Guerra

IPC分类号： B01J29/064 ,  B01J29/90 ,  B01J38/10 ,  C07B61/00 ,  C07C5/02 ,  C07C9/00 ,  C07C209/48 ,  C07C211/02 ,  C10G45/36 ,  B01J20/34 ,  C07C5/03

CPC分类号： B01J29/90 ,  B01J38/10

摘要： A process for regenerating a spent hydrogenation catalyst, comprising the steps of providing a catalyst comprising a support material selected from the group consisting of an inorganic oxide-zeolite composite, carbon and zeolite, and a catalytically active metal phase selected from the group consisting of partially reduced group IB metals and completely reduced group VIII metals, said metal phase being present in an amount of grater than or equal to about 0.03 wt %, and said catalyst having an initial diolefin hydrogenation activity, treating a hydrocarbon feedstock having a diolefin content of greater than or equal to about 0.1% and a nitrite content of greater than or equal to about 2 ppm with said catalyst until said initial diolefin hydrogenation activity of said catalyst decreases to a reduced diolefin hydrogenation activity, flushing said catalyst with an inert gas so as to remove traces of hydrocarbon from said catalyst and thereby provide a flushed catalyst, and regenerating said flushed catalyst by further flushing said flushed catalyst with hydrogen so as to provide a regenerated catalyst having a regenerated diolefin hydrogenation activity which is greater than said reduced diolefin hydrogenation activity.

摘要翻译： 一种用于再生废氢化催化剂的方法，包括以下步骤：提供催化剂，其包含选自无机氧化物 - 沸石复合材料，碳和沸石的载体材料和催化活性金属相，所述催化活性金属相选自部分 还原的IB族金属和完全还原的VIII族金属，所述金属相的存在量大于或等于约0.03重量％，并且所述催化剂具有初始的二烯烃氢化活性，处理二烯烃含量更大的烃原料 所述催化剂的亚硝酸盐含量大于或等于约2ppm，并且所述催化剂的初始二烯烃氢化活性降低至降低的二烯氢化活性，用惰性气体冲洗所述催化剂，以便 从所述催化剂中除去痕量的烃，从而提供冲洗的催化剂，并再生sa 通过用氢进一步冲洗所述冲洗的催化剂以提供具有再生的二烯烃氢化活性的再生催化剂，其大于所述还原的二烯烃氢化活性。