公开(公告)号：US08735641B2

公开(公告)日：2014-05-27

申请号：US13530414

申请日：2012-06-22

申请人： Sung Hyeon Baeck ,  Geon Joong Kim ,  Dong-Kyun Noh ,  Tae Young Jang ,  Tae-Yun Kim ,  Young Soo Ahn ,  Chan-ju Song ,  Sang-Cheol Paik

发明人： Sung Hyeon Baeck ,  Geon Joong Kim ,  Dong-Kyun Noh ,  Tae Young Jang ,  Tae-Yun Kim ,  Young Soo Ahn ,  Chan-ju Song ,  Sang-Cheol Paik

IPC分类号： C07C4/18

CPC分类号： C07C5/2775 ,  C07C2529/44 ,  Y02P20/52 ,  C07C15/02

摘要： Disclosed is a method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using a bimodal porous dealkylation catalyst at a low temperature. The catalyst has a bimodal porous structure including both mesopores and micropores. The catalyst includes a crystalline aluminosilicate and a metal. The catalyst is highly active at a low temperature. According to the method, C9+ aromatic compounds substituted with at least one C2+ alkyl group as by-products formed by xylene production can be selectively dealkylated and converted to BTX, etc. on a large scale within a short time. In addition, the method is an environmentally friendly process entailing reduced waste treatment cost when compared to conventional mesitylene production methods. Therefore, high value-added mesitylene can be separated from low value-added C9+ aromatic compounds at lower cost compared to conventional methods. Furthermore, the supported metal catalyst is easy to recover after dealkylation and is recyclable, thereby contributing to reduced cost.

摘要翻译： 公开了使用双峰多孔脱烷基化催化剂在低温下选择性烷基转移烷基取代的C 9+芳族化合物的方法。 催化剂具有包括中孔和微孔的双峰多孔结构。 催化剂包括结晶硅铝酸盐和金属。 该催化剂在低温下具有高活性。 根据该方法，通过二甲苯生成形成的作为副产物的至少一个C2 +烷基取代的C9 +芳香族化合物可以选择性地脱烷基化并在短时间内大规模转化为BTX等。 此外，与常规的均三甲苯生产方法相比，该方法是一种环境友好的方法，降低了废物处理成本。 因此，与常规方法相比，高附加值的均三甲苯可以以低成本的C9 +芳族化合物分离。 此外，负载金属催化剂在脱烷基化后容易回收并且是可回收的，从而有助于降低成本。

公开(公告)号：US20130165727A1

公开(公告)日：2013-06-27

申请号：US13530414

申请日：2012-06-22

申请人： Sung Hyeon Baeck ,  Geon Joong Kim ,  Dong-Kyun Noh ,  Tae Young Jang ,  Tae-Yun Kim ,  Young Soo Ahn ,  Chan-Ju Song ,  Sang-Cheol Paik

发明人： Sung Hyeon Baeck ,  Geon Joong Kim ,  Dong-Kyun Noh ,  Tae Young Jang ,  Tae-Yun Kim ,  Young Soo Ahn ,  Chan-Ju Song ,  Sang-Cheol Paik

IPC分类号： C07C4/18

CPC分类号： C07C5/2775 ,  C07C2529/44 ,  Y02P20/52 ,  C07C15/02

摘要： Disclosed is a method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using a bimodal porous dealkylation catalyst at a low temperature. The catalyst has a bimodal porous structure including both mesopores and micropores. The catalyst includes a crystalline aluminosilicate and a metal. The catalyst is highly active at a low temperature. According to the method, C9+ aromatic compounds substituted with at least one C2+ alkyl group as by-products formed by xylene production can be selectively dealkylated and converted to BTX, etc. on a large scale within a short time. In addition, the method is an environmentally friendly process entailing reduced waste treatment cost when compared to conventional mesitylene production methods. Therefore, high value-added mesitylene can be separated from low value-added C9+ aromatic compounds at lower cost compared to conventional methods. Furthermore, the supported metal catalyst is easy to recover after dealkylation and is recyclable, thereby contributing to reduced cost.

摘要翻译： 公开了使用双峰多孔脱烷基化催化剂在低温下选择性烷基转移烷基取代的C 9+芳族化合物的方法。 催化剂具有包括中孔和微孔的双峰多孔结构。 催化剂包括结晶硅铝酸盐和金属。 该催化剂在低温下具有高活性。 根据该方法，通过二甲苯生成形成的作为副产物的至少一个C2 +烷基取代的C9 +芳香族化合物可以选择性地脱烷基化并在短时间内大规模转化为BTX等。 此外，与常规的均三甲苯生产方法相比，该方法是一种环境友好的方法，降低了废物处理成本。 因此，与常规方法相比，高附加值的均三甲苯可以以低成本的C9 +芳族化合物分离。 此外，负载金属催化剂在脱烷基化后容易回收并且是可回收的，从而有助于降低成本。