三甘醇再生系统活性炭滤芯费用优化措施

Cost Optimization Measures of Activated Carbon Filter in TEG Regeneration System

海上平台外输天然气脱水普遍采用三甘醇脱水系统,而活性炭滤器是三甘醇脱水系统中的重要设备,其作用主要是滤掉富TEG溶液中的重烃类物质,净化TEG溶液,降低三甘醇的消耗量,确保其脱水效果。活性炭滤器的滤芯属一次性吸附型滤芯,需要定期进行替换。本项目通过在流程角度上,减少井口产出物进入三甘醇脱水系统以延长滤芯更换周期;在设备角度上,重复利用旧滤芯的外壳,并对滤料进行采购优选,自主装填滤料。最终将活性炭滤芯的采购费用大幅降低。

TEG dehydration system is widely used in the dehydration of natural gas exported from offshore platform,and activated carbon filter is an important equipment in TEG dehydration system.Its main function is to filter heavy hydrocarbons in TEG rich solution,purify TEG solution,reduce the consumption of TEG,and ensure the dehydration effect.The filter element of activated carbon filter belongs to disposable adsorption type and needs to be replaced regularly.The project extends the filter element replacement cycle by reducing the amount of wellhead products entering the TEG dehydration system from the perspective of process;from the perspective of equipment,it reuses the shell of old filter element,optimizes the purchase of filter material,and fills the filter material independently.Finally,the purchase cost of activated carbon filter element will be greatly reduced.