基于合成气的二甲醚和氢能:中国能源技术的一种战略选择

Syngas-based DME and hydrogen production systems:An option in China's energy technology strategy

合成气利用是对于中国目前和长远期有较大影响的能源政策。为了考查其中的制燃料和制氢两项技术,选取了由煤和天然气生产合成气进而生产二甲醚和氢能的几种有代表性的路线进行了系统分析。并就能量效率、折合合成能耗等指标进行了比较分析。对二甲醚和氢能在中国能源技术战略中的作用进行了讨论。结论是:以合成气为核心的能源技术是解决中国能源问题的重要选项,其中二甲醚技术在不久的将来为中国的石油替代发挥重要作用。

Fuel production and hydrogen production greatly affect China＇s short- and long-term energy policies concerning syngas application. To evaluate the fuel production and the hydrogen production, several production systems of dimethyl ether （DME） and hydrogen manufactured by reactions of syngas made from coal and natural gas were analyzed with the energy efficiency and the equivalent energy consumption for cogeneration of the systems compared. The results show that syngas-based energy technology is a good choice for solving China＇s energy problems and that DME technology is promising to play an important role in substituting oil in the near future.