Hydrogen production by sorption-enhanced steam reforming of glycerol.
Hydrogen production by sorption-enhanced steam reforming of glycerol.
复制标题
DOI：
10.1016/j.biortech.2009.02.036
复制
发表时间：
2009-07
影响因子：
11.4
通讯作者：
Binlin Dou;V. Dupont;G. Rickett;N. Blakeman;Paul T. Williams;Haisheng Chen;Yulong Ding;M. Ghadiri-M.-G
中科院分区：
文献类型：
--
作者：
Binlin Dou;V. Dupont;G. Rickett;N. Blakeman;Paul T. Williams;Haisheng Chen;Yulong Ding;M. Ghadiri-M.-G
在连续流动固定床反应器中对甘油催化水蒸气重整制氢进行了实验评价。实验在大气压下在400-700°C的温度范围内进行。工业镍基催化剂和白云石吸附剂用于蒸汽重整反应和原位CO2脱除。产物气体通过在线气体分析仪测量。结果表明，随着温度的升高，H2产率显著提高，在500°C以上，甲烷副产物的生成量可忽略不计。结果表明，以煅烧白云石为吸附剂的甘油水蒸气重整原位脱碳反应的最佳温度为1500 °C，此时CO2穿透时间最长，H2纯度最高。收缩核模型和一维扩散模型较好地描述了本实验条件下的CO2去除过程。
Catalytic steam reforming of glycerol for H2production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400–700°C. A commercial Ni-based catalyst and a dolomite sorbent were used for the steam reforming reactions and in situ CO2removal. The product gases were measured by on-line gas analysers. The results show that H2productivity is greatly increased with increasing temperature and the formation of methane by-product becomes negligible above 500°C. The results suggest an optimal temperature of ∼500°C for the glycerol steam reforming with in situ CO2removal using calcined dolomite as the sorbent, at which the CO2breakthrough time is longest and the H2purity is highest. The shrinking core model and the 1D-diffusion model describe well the CO2removal under the conditions of this work.