Design and optimization of carbon emmislon reduction process of vent gas hydrogen production from natural gas

被引：0

作者：

Guo M. ^{[1
]}

机构：

[1] Panjin Institute of Industrial Technology, Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Dalian University of Technology, Panjin

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 06期

关键词：

Carbon capture; Hydrogen production; Hydrogen recovery; Membrane; Natural gas; Process design;

D O I：

10.19912/j.0254-0096.tynxb.2022-0187

中图分类号：

学科分类号：

摘要：

In this regard, a gradient recovery process coupled with various types of separation membranes and compression condensation is developed to achieve high-value utilization of components such as H2 and CO2. The effects of pressure, product concentration and different hydrogen membrane units on the process are investigated. Through the process optimization simulation of Aspen HYSYS for a throughput of 10000 Nm3/h, it is concluded that when the single-stage hydrogen membrane unit and the single-stage two-step hydrogen membrane unit are used, the process economy is best when the exhaust gas inlet pressure is 2700 kPa and the H2 product concentration is 60%. The H2 recovery rate is 81% and 90%, the CO2 recovery rate is 58% and 60%, the gas calorific value is 16.7 MJ/Nm3 and 18.2 MJ/Nm3, and the investment recovery period is 26.1 months and 24.4 months, respectively. When the second-stage hydrogen membrane unit is used, the investment is least, and when the best payback period is 16.5 months, the purity of the hydrogen product is 52%, which is lower than the design requirements of the hydrogen production adsorption device. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：500 / 507

页数：7

共 28 条

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