Hydrogenation feedstock
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For hydrogenation units, what impact does the presence of organic chlorines in the feed oil have on the equipment and operation of such units?
Organic chlorine reacts to form inorganic chlorine; its impact on the catalyst is not too severe, but it has a relatively significant effect on hydrogenation equipment
Excessive chlorine leads to the formation of large amounts of salts as a result of the reaction, which causes blockages in the heat exchanger downstream of the hydrogenation reactor. This results in reduced heat exchange efficiency and increased consumption of deionized water; in severe cases, it can also cause deposits on the catalyst surface, leading to its temporary deactivation； Additionally, chloride ions are highly corrosive to equipment and pipes.