轻组分向上流至催化剂段，在那里丁二烯选择性加氢、脱硫和一些烯烃的饱和同时进行。
The light constituents flow upward to the catalyst zone, where the selective hydrogenation of butadiene is carried out together with desulfurization and some olefin saturation.
裂解汽油的二段加氢反应主要是脱硫、烯烃饱和等反应。
The second-stage hydrogenation reaction is mainly hydrodesulfurization and alkene saturation hydrogenation of pyrolysis gasoline.
本发明具有对重质烃加氢饱和活性高的优点，特别适合用于高烯烃含量蜡加氢饱和的优点。
The present invention has the advantages of high hydrogenation activity for heavy hydrocarbon, and is especially suitable for hydrogenating saturation wax with high olefin content.
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