EXPERIMENTAL STUDY OF PSEUDO-ONE-STEP SYNTHESIS FOR DIMETHYL ETHER PRODUCTION
IntroductionDuring the past few years, Dimethyl ether (DME) has received growing attention because of its potential use as multi purpose fuel and it can be obtained from natural gas, coal, waste products and biomass1. DME can be used as a clean high efficiency compression ignition fuel with reduced Nox, Sox, and particulate matter2. As DME is easily liquefied, it can be distributed, stored and similar properties as propane and butane, permitting its use as a LPG substitute3. In addition, DME is an important chemical and it can be used as an aerosol propellant to replace chlorofluorocarbons due to its environmentally benign characteristics4. There are two methods for the production of DME from syngas: (i) a two-step indirect process comprising methanol synthesis and dehydration of methanol to DME; (ii) a single step using a bifunctional catalyst comprising a methanol synthesis component and a solid acid converting methanol and then future converting methanol to DME 5,6. The main advantage of DME synthesis in a single step on a bifunctional catalyst is the alleviation of the thermodynamic limitation of the methanol synthesis alone7. But the best activity temperature of these two catalysts are mismatching.
Yingying Zhu Shurong Wang Xiujuan Guo Zhongyang Luo Kefa Cen
State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou, 310027, China
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
227-228
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）