What are the reasons for choosing a butane removal tower or a hydrogen sulfide stripping unit during design?
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When designing a hydrocracking distillation column, what are the reasons for choosing a butane removal column or a hydrogen sulfide stripping unit?
It is mainly used to process the gaseous stream from hydrocracking; as a result of hydrogenation, all sulfides are converted into hydrogen sulfide. The hydrogen sulfide stripping you mentioned likely refers to the conventional amine-based desulfurization process. The gaseous stream after desulfurization usually contains compounds with carbon numbers of 6 or less, which are then used to produce propylene, butane, or liquefied gas.