合同能源管理(EPC)在宁夏石化公司4116工段尾气回收中的应用

Energy performance contracting applied in the tail gas recycling of 4116 unit of Ningxia petrochemical company

通过合同能源管理(EPC)模式,宁夏石化公司与北京一家节能公司进行合作,实施了化肥一厂合成氨装置液氮洗(4116)工段尾气回收再利用项目,达到了降耗、减排的目的。本文对合同能源管理(EPC)背景、液氮洗(4116)尾气回收改造和尾气回收利用效果进行研究。结果表明:以合同能源管理(EPC)模式,对宁夏石化公司合成氨装置液氮洗(4116)尾气进行回收再利用,既可以降低合成氨原料气消耗,减少二氧化碳、氮气的排放,又能得到很好的经济效益。

Through energy performance contracting mode, Ningxia petrochemical company cooperated with an energy service company in Beijing, implemented tail gas recycling project of the liquid nitrogen washing （4116） unit of the synthetic ammonia plant in Ningxia petro- chemical company, to save raw gas and reduce emissions. In this paper, the background of energy performance contracting （EPC）, the transformation and effect of tail gas recycling were studied. The results showed the tail gas of the liquid nitrogen washing （4116） unit of the synthetic ammonia plant in Ningxia petrochemical company was recycled by energy per- formance contracting model, which can save the raw gas of synthetic ammonia, reduce car- bon dioxide and nitrogen emissions, and can obtain good economic benefit.