公开(公告)号：EP0808299B1

公开(公告)日：2001-03-28

申请号：EP96907037.4

申请日：1996-02-09

申请人： MOBIL OIL CORPORATION

发明人： BUCHANAN, John, Scott ,  CHESTER, Arthur, Warren ,  FUNG, Shiu, Lun, Anthony ,  KINN, Timothy, Frederick ,  MIZRAHI, Sadi

IPC分类号： C07C2/64 ,  C07C5/52 ,  C07C15/067 ,  C07C15/08

CPC分类号： C10G47/16 ,  B01J29/7415 ,  B01J29/7469 ,  B01J29/7476 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  C07C6/126 ,  C07C2529/74 ,  C10G35/095 ,  Y02P20/52 ,  Y10S585/906

摘要： A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C9+ aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and hydrogenation component, preferably platinum. The catalyst, complete with hydrogenation component, is treated to reduce aromatics loss. Treatment includes exposure to steam and/or sulfur after incorporation of the hydrogenation component. For additional stability and aromatics retention the steamed and/or sulfur treated catalyst is sulfided by cofeeding a source of sulfur. A low hydrogen partial pressure is preferably employed to assist in aromatics retention.

公开(公告)号：EP0988265A1

公开(公告)日：2000-03-29

申请号：EP98929047.3

申请日：1998-06-12

申请人： MOBIL OIL CORPORATION (a New York corporation)

发明人： BEECH, James, Harding, Jr. ,  HELLRING, Stuart, Damon ,  HELTON, Terry, Eugene ,  KINN, Timothy, Frederick ,  MIZRAHI, Sadi ,  ROULEAU, Norman, Joseph

IPC分类号： C07C5/22

CPC分类号： C07C6/126 ,  C07C2529/06 ,  C07C2529/70 ,  Y02P20/52

摘要： A heavy aromatics feed is converted to lighter aromatics products, such as benzene, by contacting a C9+ aromatics fraction and toluene over a first catalyst comprising a zeolite having a constraint index ranging from 0.5 to 3 and a hydrogenation component, and a second catalyst composition comprising an intermediate pore size zeolite having a constraint index ranging from 3 to 12 and a silica to alumina ratio of at least 5, whereby the amount of coboilers is reduced or eliminated.

摘要翻译： 通过使C9 +芳族化合物馏分和甲苯在包含约束指数为0.5-3的沸石和氢化组分的第一催化剂上接触，将重芳烃进料转化为较轻的芳族化合物产物，例如苯，和第二催化剂组合物， 约束指数在3-12范围内且二氧化硅与氧化铝之比至少为5的中孔径沸石，由此降低或消除共沸物的量。

公开(公告)号：EP0808299A1

公开(公告)日：1997-11-26

申请号：EP96907037.0

申请日：1996-02-09

申请人： MOBIL OIL CORPORATION

发明人： BUCHANAN, John, Scott ,  CHESTER, Arthur, Warren ,  FUNG, Shiu, Lun, Anthony ,  KINN, Timothy, Frederick ,  MIZRAHI, Sadi

IPC分类号： C07C2 ,  B01J29 ,  C07C5 ,  C07C6 ,  C07C15 ,  C10G35 ,  C10G45 ,  C10G47 ,  C10G49

CPC分类号： C10G47/16 ,  B01J29/7415 ,  B01J29/7469 ,  B01J29/7476 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  C07C6/126 ,  C07C2529/74 ,  C10G35/095 ,  Y02P20/52 ,  Y10S585/906

摘要： A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C9+ aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and hydrogenation component, preferably platinum. The catalyst, complete with hydrogenation component, is treated to reduce aromatics loss. Treatment includes exposure to steam and/or sulfur after incorporation of the hydrogenation component. For additional stability and aromatics retention the steamed and/or sulfur treated catalyst is sulfided by cofeeding a source of sulfur. A low hydrogen partial pressure is preferably employed to assist in aromatics retention.