The main components of the liquefied petroleum gas obtained from the refinery are one or two of propane, propylene, butane, and butene, and it is also doped with a small amount of pentane, pentene and trace sulfide impurities. If you want to further purify the liquefied petroleum gas, you can use the alcohol amine absorption tower to absorb and remove the carbon oxysulfide, and finally wash the excess sulfide with alkali.
