Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Toluene disproportionation process

Patent ·
OSTI ID:6367671
This patent describes a method for the disproportionation of a toluene containing feed stock to produce a disproportionation product containing benzene and xylene. The steps comprise: passing the toluene feed stock into a reaction zone into contact with a mordenite catalyst within the reaction zone having a silica to alumina mole ratio of at least 30. The feed stock is supplied to the reaction zone at a rate to provide a toluene WHSV greater than 1; supplying hydrogen to the reaction zone at a rate to provide hydrogen/toluene mole ratio within the range of 3-6; carrying out the disproportionation reaction within the reaction zone at a temperature within the range of 370/sup 0/-500/sup 0/C and a hydrogen pressure of at least 500 psig; and withdrawing the disporportionation product containing benzene and xylene from the reaction zone.
Assignee:
Cosden Technology, Inc., Dallas, TX
Patent Number(s):
US 4665258
OSTI ID:
6367671
Country of Publication:
United States
Language:
English