北京科技大学学报2012,Vol.34Issue(6):712-717,6.
入口气组分对质子交换膜燃料电池柴油水蒸气重整制氢流程的影响
Influence of inlet gas components on the diesel steam reforming of proton exchange membrane fuel cells for hydrogen production
摘要
Abstract
This paper investigated the rates of diesel conversion and reforming over Ni-Yb/y-Al2O3 catalyst ( Ni 16% , Yb 5% ) in low/high temperature diesel steam reforming with different inlet gases ( CO2 , H2 and CH4 ) as well as the influences of CO2 inlet gas on water-gas-shift and CO deep removal, which are the follow-up processes of the hydrogen production flowsheet based on diesel steam reforming for proton exchange membrane fuel cells (PEMFC). CO2 or H2 improves diesel conversion ( 〉 95% ) in low temperature ( from 400 to 500℃) diesel steam reforming, which can let CH4 instead of diesel to participate high temperature ( from 550 to 750 ℃ ) steam reforming, so that carbon deposition can be resisted obviously. However H2 shows depression on the high temperature steam reforming, and CH4 inlet gas depresses diesel conversion. When the molar ratio of gas to the total carbon of diesel is around 0.54, CO2 inlet gas shows the best improvement on diesel conversion; however the CO content increases in the product gas, so the gas-hourlyspace-velocity of CO water-gas-shift should be reduced to reach the required CO removal ratio. There is no obvious influence on the two-stage methanation for CO deep removal.关键词
质子交换膜燃料电池/水蒸气重整反应/重整制氢/柴油/入口/组分/CO2/转化率Key words
proton exchange membrane fuel cells (PEMFC)/diesel fuels/steam reforming/catalysts/hydrogen production分类
化学化工引用本文复制引用
徐立昊,米万良,苏庆泉..入口气组分对质子交换膜燃料电池柴油水蒸气重整制氢流程的影响[J].北京科技大学学报,2012,34(6):712-717,6.基金项目
国家自然科学基金资助项目(20776016 ()
21006005) ()