17-12-2014 дата публикации
Номер: CN104212487A
Принадлежит:
The invention relates to a method for removing arsenic from a catalytic gasoline hydrogenation raw material. According to the method, when a fixed bed hydrogenation technology is adopted for hydrotreatment on catalytic cracking gasoline, Ni-Mo and Co-Mo series catalysts are used as the hydrogenation catalysts, and when the arsenic content of the raw material is greater than or equal to 20ppbw, the catalytic cracking gasoline firstly enters a coalescence dehydration device to undergo coalescence dehydration so as to make the free water content less than or equal to 100ppm, and the dehydrated catalytic cracking gasoline enters a dearsenication reactor by means of entering at bottom and leaving at top. The inlet temperature of the dearsenication reactor is the catalytic gasoline feed temperature 40DEG C, the inlet pressure is the catalytic gasoline feed pressure 0.5-1.0MPag, and the volume space velocity is 1.5-2.0h<-1>. The method provided by the invention can make the arsenic content of ...
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