HIGH PURITY HYDROGEN PRODUCTION WITH IN-SITU CO2 CAPTURE BY SMART SYSTEM
IntroductionSteam methane reforming (SMR) of natural gas is the predominant production route to hydrogen for commercial scale application 1. For methane, the overall reaction is:CH4+2 H2O(←→)CO2+4H2 H0298= 165 kJ/mol (1)However, the SMR process includes multiple-steps (reforming→high temperature water-gas shift→low temperature water-gas shit→CO2 separation) and the reaction conditions are severe. First, methane is converted to syngas over a catalyst by the highly endothermic reforming reaction. High-and low-temperature water gas shigh (WGS) reactors are then used to convert most of CO to hydrogen by reaction with steam. After that, normally, pressure swing adsorption (PSA) process is used to remove CO2 2. Although the SMR process has been used for many years, there are some areas for improvement. The reforming is highly endothermic, and therefore, temperature must be carefully controlled to avoid catalyst deactivation due to coking.
Ho-Jung Ryu Seung-Yong Lee Dal-Hee Bae
Korea Institute of Energy Research 71-2 Jangdong Yuseonggu Daejeon, 305-343 Korea
国际会议
The 7th China-Korea Workshop on Clean Energy Technology(第七届中韩清洁能源技术研讨会)
太原
英文
193-194
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）