Why does the feed temperature of the crude oil distillation column have a significant impact on the arsenic content in the reforming feed?
Thread Content
This post was last edited by chengkang on 2011-7-14 13:02. As the title suggests: Why does the feed temperature of the crude oil distillation column have a significant impact on the arsenic content in the reformation feed?
A high feed temperature in the initial distillation tower can easily cause the breakdown of hydrocarbons, as well as metal and non-metal compounds in crude oil, thereby increasing the arsenic content in the reformation feedstock.
Since arsenic compounds can decompose at high temperatures, this leads to an increase in the arsenic content in the gasoline at the top of the tower; therefore, generally, the arsenic content in the middle-stage gasoline is relatively higher than that in the gasoline at the very top of the tower.