摘要
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。
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.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2009年第2期177-182,共6页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(50306026)
广东省关键领域重点突破招标项目(2007498511)
广州市科技计划资助(2006J1-C0421)
关键词
生物油
水溶性组分
重整
制氢
CO2吸收剂
bio-oil
aqueous fraction
reforming
hydrogen production
CO2 sorbent
