A Study On Improvement Of Gas Dehydration Technological Process

In addition to methane,natural gas(especially condensate and associated gas)contains certain amounts of ethane,propane,butane,pentane,and heavier hydrocarbons.In order to meet the quality requirements of hydrocarbon dewpoint for pipeline gas,or to obtain valuable liquid fuel gas and chemical raw materials,hydrocarbons in natural gas should be separated and recovered according to certain requirements.Currently,ethane,propane,butane,pentane,and heavier hydrocarbons in natural gas are recovered in liquid form,with the exception of ethane,which is sometimes recovered as a gas.The liquid hydrocarbon mixture recovered from natural gas is called natural gas condensate(NGL),which is referred to as liquid hydrocarbon or condensate hydrocarbon.The composition of natural gas condensate varies according to the composition of natural gas,the purpose and method of recovery of natural gas condensate.The process of recovering condensate from natural gas is called natural gas condensate recovery(NGL recovery).