在流化床反应器中生物油重组分模拟物催化重整制氢

对在流化床反应器中生物油重组分模拟物(简称模拟物)与水蒸气催化重整制氢进行了研究。考察了温度、水蒸气与模拟物中C的摩尔流率之比(S/C)和模拟物的重时空速(WHSV)对催化重整制氢的影响。适宜的反应条件为:工业级镍基催化剂(w(NiO)=7.2%)200g、温度700℃、S/C=14、WHSV=0.6h-1、反应时间3h。在此条件下,H2产率、潜在H2(H2+CO)产率和总的C元素选择性达到最大值,分别为79.9%,86.0%,90.3%。SEM表征发现,烧结是造成催化剂失活的原因之一。

Hydrogen Production by Catalytic Steam Reforming of Heavy Components in Bio-Oil in Fluidized Bed Reactor

Hydrogen production was carried out through catalytic steam reforming of simulative heavy components in bio-oil in a fluidized bed reactor.Result showed that effects of temperature,mole ratio of steam to carbon(S/C) and WHSV of the simulacrum on the reforming were significant.Under optimum reaction conditions of industrial-grade nickel-based catalyst(w(NiO) 7.2%) 200 g,(700 ℃,) S/C 14,WHSV 0.6 h～(-1) and reaction time 3 h,hydrogen yield,potential hydrogen(H_2+CO) yield and total carbon selectivity could reach 79.9%,86.0% and 90.3%,respectively.SEM result showed that sintering was one of reasons for the catalyst deactivation.