Chapter 12

Liquefied Petroleum Gas (LPG) Recovery


The purpose of the liquefied petroleum gas (LPG) unit is to process light hydrocarbons (C1–C5) into required component streams. The LPG unit feed streams in a refinery are usually obtained from refinery units such as atmospheric crude distillation, plat former, hydro cracker, and other catalytic processing units. LPG is also produced in gas fractionation units charged by associated gas from oil reservoirs or gas from gas reservoirs. However, any LPG stream that is economically justified for recovery of the components shall be routed to the LPG recovery unit. This chapter covers minimum process design requirements for LPG recovery and splitter units. It should be expressed that only general ...

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