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    Toluene disproportionation catalyst
    1.
    发明申请
    Toluene disproportionation catalyst 有权
    甲苯歧化催化剂

    公开(公告)号：US20080319243A1

    公开(公告)日：2008-12-25

    申请号：US11820230

    申请日：2007-06-19

    申请人： James R. Butler ,  Xin Xiao ,  Rosa Hall

    发明人： James R. Butler ,  Xin Xiao ,  Rosa Hall

    IPC分类号： C07C6/12

    CPC分类号： B01J37/20 ,  B01J29/24 ,  B01J35/002 ,  B01J37/0009 ,  B01J37/08 ,  B01J2229/20 ,  B01J2229/40 ,  B01J2229/42 ,  C07C6/123 ,  C07C2529/18 ,  Y02P20/52 ,  C07C15/04 ,  C07C15/08

    摘要： A process for the disproportionation of a toluene containing feedstock employing a nickel modified mordenite catalyst comprising particulate mordenite having nickel dispersed throughout the catalyst particles to provide surface nickel and interior nickel within the mordenite crystal structure. The catalyst is pretreated to selectively deactivate the surface nickel to provide a surface nickel content of reduced catalytic activity. The interior nickel thus has a higher catalytic activity than the surface nickel. The feedstock is supplied to a reaction zone containing the catalyst to cause disproportionation of toluene in the feedstock to produce a mixture of benzene and xylene. The non-aromatic content of the product is less than the non-aromatic content of a corresponding disproportionation product which would be produced by the disproportionation of the feedstream in the presence of a corresponding nickel mordenite catalyst which has not been pretreated.

    摘要翻译： 一种使用镍改性的丝光沸石催化剂歧化含甲苯原料的方法，其包含分散在整个催化剂颗粒中的镍的颗粒丝光沸石，以在丝光沸石晶体结构内提供表面镍和内部镍。 催化剂被预处理以选择性地使表面镍失活以提供具有降低的催化活性的表面镍含量。 因此，内部镍具有比表面镍更高的催化活性。 将原料供给到含有催化剂的反应区，以使原料中的甲苯发生歧化，产生苯和二甲苯的混合物。 产物的非芳香族含量低于相应的歧化产物的非芳香族含量，其将通过在未进行预处理的相应的镍丝光沸石催化剂存在下，通过进料流的歧化而产生。

    Toluene disproportionation catalyst
    4.
    发明授权
    Toluene disproportionation catalyst 有权
    甲苯歧化催化剂

    公开(公告)号：US07572945B2

    公开(公告)日：2009-08-11

    申请号：US11820230

    申请日：2007-06-19

    申请人： James R. Butler ,  Xin Xiao ,  Rosa Hall

    发明人： James R. Butler ,  Xin Xiao ,  Rosa Hall

    IPC分类号： C07C6/12

    CPC分类号： B01J37/20 ,  B01J29/24 ,  B01J35/002 ,  B01J37/0009 ,  B01J37/08 ,  B01J2229/20 ,  B01J2229/40 ,  B01J2229/42 ,  C07C6/123 ,  C07C2529/18 ,  Y02P20/52 ,  C07C15/04 ,  C07C15/08

    摘要： A process for the disproportionation of a toluene containing feedstock employing a nickel modified mordenite catalyst comprising particulate mordenite having nickel dispersed throughout the catalyst particles to provide surface nickel and interior nickel within the mordenite crystal structure. The catalyst is pretreated to selectively deactivate the surface nickel to provide a surface nickel content of reduced catalytic activity. The interior nickel thus has a higher catalytic activity than the surface nickel. The feedstock is supplied to a reaction zone containing the catalyst to cause disproportionation of toluene in the feedstock to produce a mixture of benzene and xylene. The non-aromatic content of the product is less than the non-aromatic content of a corresponding disproportionation product which would be produced by the disproportionation of the feedstream in the presence of a corresponding nickel mordenite catalyst which has not been pretreated.

    摘要翻译： 一种使用镍改性的丝光沸石催化剂歧化含甲苯原料的方法，其包含分散在整个催化剂颗粒中的镍的颗粒丝光沸石，以在丝光沸石晶体结构内提供表面镍和内部镍。 催化剂被预处理以选择性地使表面镍失活以提供具有降低的催化活性的表面镍含量。 因此，内部镍具有比表面镍更高的催化活性。 将原料供给到含有催化剂的反应区，以使原料中的甲苯发生歧化，产生苯和二甲苯的混合物。 产物的非芳香族含量低于相应的歧化产物的非芳香族含量，其将通过在未进行预处理的相应的镍丝光沸石催化剂存在下，通过进料流的歧化而产生。