Evaluating Options for LPG recovery in Refinery Gas PlantEvaluating Options for LPG recovery in Refinery Gas Plant- By Raj Bhadra Singh & Abhishek Sinha
LPG recovery in a refinery follows a standard arrangement – The feed is compressed to a higher pressure followed by absorption with a solvent such as stabilized/ UN-stabilized naphtha. The lighters, methane and ethane, absorbed in the process are removed in a stripper column. The rich solvent stream from the stripper bottom is then routed to a debutanizer column where LPG is separated from the rich solvent stream. The LPG so recovered and Fuel Gas undergo further treatment in amine absorbers to meet H2S specifications.
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