公开(公告)号：US20040235657A1

公开(公告)日：2004-11-25

申请号：US10442773

申请日：2003-05-21

Applicant: FINA Technology, Inc.

Inventor： Xin Xiao ,  James R. Butler

IPC: B01J021/04

CPC classification number: B01J21/066 ,  B01J23/30 ,  B01J23/8892 ,  B01J27/053 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1061 ,  B01J37/20 ,  B01J37/32 ,  C10G35/06 ,  C10G45/60

Abstract: The present invention provides a process for the preparation of a catalyst having a high surface area and pore volume. The process includes freeze drying an intermediary of the catalyst. The present invention further includes a catalyst prepared by a process that includes the freeze drying step. The present invention also includes a catalyst having a high acidity, as indicated by having an ammonium desorption peak at greater than about 500null C. The prevent invention further includes a method of manufacturing isomerized organic compounds using the catalyst.

Abstract translation: 本发明提供了制备具有高表面积和孔体积的催化剂的方法。 该方法包括冷冻干燥催化剂的中间体。 本发明还包括通过包括冷冻干燥步骤的方法制备的催化剂。 本发明还包括具有高酸度的催化剂，如通过在大于约500℃具有铵解吸峰所表明的。本发明还包括使用该催化剂制备异构化有机化合物的方法。

公开(公告)号：US20030092950A1

公开(公告)日：2003-05-15

申请号：US10285736

申请日：2002-11-01

Applicant: Fina Technology, Inc.

Inventor： Xin Xiao ,  James R. Butler

IPC: C07C005/22

CPC classification number: C07C6/123 ,  C07C6/12 ,  C07C2529/18

Abstract: A method is provided for conversion of heavy alkylaromatic compounds, particularly those in the C8-C12 range, into more valuable aromatics of benzene, toluene and xylene utilizing a toluene disproportionation unit containing a nickel, palladium or platinum-modified mordenite catalyst. The method allows large amounts of these heavy alkylaromatic compounds to be processed without adversely affecting catalyst activity or catalyst life. This is accomplished by introducing the heavy alkylaromatic compounds into the reactor at constant reaction severity conditions and maintaining those conditions during conversion.