Abstract:

Influence of commercial catalyst Z204 on steam reforming performance of bio-oil aqueous fraction for hydrogen production was studied using two-stage fixed bed reactor.Effects of reaction and distillation temperatures on hydrogen production, as well as the lifetime of the catalyst and the characteristics of the distillation residue were investigated.Comparative study illustrated that the yield of hydrogen production with Z204 catalyst was much higher than that without Z204 catalyst,with the highest hydrogen yield of 47%.Under the conditions of reaction temperature of 750 ℃ and distillation temperature of 200℃, the hydrogen yield kept about 35% within 4 h of reaction.

Key words:

生物油, 水蒸气重整, 镍催化剂, 氢气, 蒸馏残渣, 两段式固定床反应器

摘要：

比较了不使用催化剂和使用商业催化剂Z204时两段式反应器生物油水相部分的重整制氢反应的特点，研究了反应温度和生物油水相部分蒸馏温度对生物油水相部分重整制氢反应的影响，考察了催化剂的寿命和蒸馏残渣的特性。实验结果表明，在两段式反应器上使用Z204催化剂时，H₂收率最高可达47％，明显高于不加催化剂时的H₂收率;在蒸馏温度为200 ℃、反应温度为750 ℃的条件下，反应在约4 h的反应时间内H₂收率基本维持在35%左右。对蒸馏残渣的特性考察表明生物油水相部分蒸馏残渣的变形温度要远高于反应时的温度。

关键词:

生物油, 水蒸气重整, 镍催化剂, 氢气, 蒸馏残渣, 两段式固定床反应器