焦炉煤气制氢与车载二甲醚重整制氢的能耗与CO_2排放对比

Comparison of CO_2 Emission and Energy Consumption of Hydrogen Production from Coke Oven Gas and Dimethyl Ether onboard Reforming Process

本文分别建立了焦炉煤气制氢与车载二甲醚重整制氢生产及运输过程的模型,分析了两个过程中的总能耗与CO2总排放情况。结果表明在中短途运输中,车载二甲醚重整制氢的总能耗与CO2总排放都远远小于焦炉煤气制氢;焦炉煤气制氢的三种运输方式的总能耗和CO2总排放在不同运输情况中各不相同,因此三种方式各有优势。利用这些对比结果,既能根据各种情况提供较为合适的制氢技术,又能降低其生命周期能耗、减少环境污染,具有重要意义。

The models of process of transportation and hydrogen production from coke oven gas and dime- thyl ether（DME） onboard reforming were built respectively. The energy consumption and CO2 emission were analyzed. The result showed in the medium and short transportation distance, the energy consump- tion and CO2 emission of hydrogen production from DME were much less than hydrogen production from coke oven gas. Moreover, energy consumptions and CO2 emissions were different with three kinds of transportation ways of hydrogen production from coke oven gas because of variety of situations. So each of them had its own advantages. The result will he helpful for choosing a more appropriate hydrogen produc- tion technique, and reducing energy consumptions and emissions in life cycle.