Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Xiangchen Fang0
Mei Jin0
Ping Wu0
Ronghui Zeng0
Baoping Han0
Hongjiang Sun0
Date of Patent
October 14, 2008
0Patent Application Number
106825930
Date Filed
October 9, 2003
0Patent Primary Examiner
Patent abstract
The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed bed of catalyst in a reactor, characterized in that the fixed bed of catalyst includes two or more catalyst layers, with the difference of voidage between the adjacent catalyst layers being at least 0.05. The voidages of the catalyst layers can be increased or decreased in the direction of the flow of the liquid phase. The process of the invention can be effected with an increased range of gas-liquid ratio and an improved stability and flexibility.
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