生物油水溶性组分的水蒸气催化重整制氢实验研究

利用固定床反应器对生物油水溶性组分重整制氢反应进行了考察，研究了温度、吸收剂的加入对反应过程的影响。结果表明，在常压条件下生物油水溶性组分的最佳重整温度为800℃，此时H2体积分数为60%、CO体积分数为10%。加入CO₂吸收剂后，H₂体积分数提高了25%，H₂产率提高了10%。在常压条件下，以CaO作为吸收剂时，最佳的反应温度为600℃，此时H₂体积分数最高可达85%。650℃时CaO对CO₂的吸收能力减弱导致其对生成H₂反应的促进作用急剧降低。

Experimental research on hydrogen production by catalytic steam reforming of bio-oil aqueous fraction

The experiment of hydrogen production from catalytic steam reforming of bio-oil aqueous fraction was carried out in a bench scale fixed-bed reactor. The effects of temperature and sorbents were investigated. The optimal reaction temperatures for catalytic steam reforming of bio-oil aqueous fraction with and without sorbents were determined. The results show that at the best reaction conditions for bio-oil aqueous fraction reforming is at 800℃ under atmosphere pressure, at which, up to 60% of H₂ and 10% of carbon monoxide in the effluent gas were obtained. Absorption of carbon dioxide increased hydrogen content in the effluent gas as well as hydrogen yield. 85% of hydrogen content was reached using CaO as sorbent at optimized reaction temperature of 600℃.Due to the decrease of the capacity for carbon dioxide capture by CaO at 650℃ during the reaction, the enhancement to hydrogen yield dropped significantly.