膜分离技术在催化重整PSA尾气中氢气回收的应用
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摘要
为了充分利用资源,采用膜分离技术回收催化重整装置PSA尾气中的氢气,通过新建膜分离装置和现有PSA耦合工艺回收氢气取得了可观的经济效益,同时生产满足99.9%纯度的的氢气,每年回收氢气约2.3 kt。既缓解厂内氢气资源紧张的问题,还可以增加效益约2 300七元,同时提高了燃料气管网热值、降低了其他制氢装置的能耗和氮氧化物的排放,对友好环境也起到了积枀的作用。重点介绍了膜分离的原理、工艺流程及标定情况,幵针对生产运行中出现的问题提出处理措施。
In order to make full use of resources, the membrane separation technology was used to recover hydrogen from PSA tail gas of catalytic reforming unit. The coupling of new membrane separation device and the existing PSA process for recovering hydrogen from PSA tail gas achieved considerable economic benefits, at the same time,hydrogen with 99.9% purity was produced. The recovery of hydrogen was about 2.3 kt/a, which not only alleviated the shortage of hydrogen resources in the plant, but also increased the efficiency by 23 million Yuan. The calorific value of the fuel gas pipe network was increased, the energy consumption and nitrogen oxides emission of other hydrogen production units were reduced. In this paper, the principle, process and calibration of membrane separation were introduced, and the treatment measures were put forward according to the problems in production operation.
In order to make full use of resources, the membrane separation technology was used to recover hydrogen from PSA tail gas of catalytic reforming unit. The coupling of new membrane separation device and the existing PSA process for recovering hydrogen from PSA tail gas achieved considerable economic benefits, at the same time,hydrogen with 99.9% purity was produced. The recovery of hydrogen was about 2.3 kt/a, which not only alleviated the shortage of hydrogen resources in the plant, but also increased the efficiency by 23 million Yuan. The calorific value of the fuel gas pipe network was increased, the energy consumption and nitrogen oxides emission of other hydrogen production units were reduced. In this paper, the principle, process and calibration of membrane separation were introduced, and the treatment measures were put forward according to the problems in production operation.
引文
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[2]王萍,吴昊鹏,徐以泉.加氢型炼厂富氢尾气回收氢气技术[J].中外能源,2016,21(4):78-82.
[3]田小玱.炼厂气中氢气通过PSA和膜分离利用的比较[J].炼油技术与工程,2010,40(5):12-16.
[4]王学松.现代膜技术及其应用指南[M].北京:化学工业出版社,2005.
[5]陈文杰,顾望,田正浩.采用膜分离技术回收炼油厂富氢气体中的氢气[J].炼油技术与工程,2008,38(9):19-21.
[6]王保国,吕宏凌,杨毅.膜分离技术在石油化工领域的应用迚展[J].应用化工,2006,35(8):705-710.
[7]刘天翼,朱先升,陈光.膜分离技术在回收炼厂气中氢气的应用[J].当代化工,2016,45(8):1907-1909.
[8]林彬,陈国需,杜鹏飞,肖德志.膜分离技术在石油化工领域的应用[J].当代化工,2017,46(6):1196-1199.