煤气与热力2024，Vol.44Issue(5)：7-13,7.
SMR-LNG联合液氢制取系统模拟与效益评价
Simulation and Benefit Evaluation of SMR-LNG Combined Liquid Hydrogen Production System
吴小平 1杨罗 1景秀 2沈杨旭 2黄小美2
作者信息
- 1. 中国市政工程西南设计研究总院有限公司,四川成都 610218
- 2. 重庆大学土木工程学院,重庆 400000
- 折叠
摘要
Abstract
A collaborative liquid hydrogen pro-duction process system based on LNG receiving station cold energy and steam methane reforming(SMR)hy-drogen production process,SMR-LNG combined liquid hydrogen production system,is proposed.The system utilizes a multi flow LNG heat exchanger to achieve coupling between steam methane reforming hydrogen production process and LNG pre cooled liquefied hy-drogen production process.The proposed process sys-tem is modeled and simulated by Aspen HYSYS soft-ware.When the LNG supply is 50 t/h,the system can produce liquid hydrogen with a mass flow rate of 5.89 t/h and a purity of 99.99％.The hydrogen liquefac-tion subsystem has lower specific energy consumption compared to traditional hydrogen purification and lique-faction processes,and the use of LNG cold energy has good energy-saving benefits.The exergy loss rate of all LNG heat exchangers in the system is 28.0％,the ex-ergy loss rate of all reactors is 26.4％,the exergy loss rate of all coolers is 13.3％,the exergy loss rate of all compressors is 8.2％,and the exergy loss rate of all expanders is 7.0％.The exergy loss rate of these 5 types of equipment is very high,which implies the op-portunity for energy saving improvement in the system.关键词
LNG冷能/甲烷蒸汽重整/能量效益评价/流程模拟Key words
LNG cold energy/steam methane reforming(SMR)/energy efficiency evaluation/process simulation分类
化学化工引用本文复制引用
吴小平,杨罗,景秀,沈杨旭,黄小美..SMR-LNG联合液氢制取系统模拟与效益评价[J].煤气与热力,2024,44(5):7-13,7.
