生物油制氢中催化剂与吸收剂研究  

The Study of Catalyst and Sorbent in Hydrogen Production From Bio-Oil

作　　者：郭常青[1] 翁洪康[1,2] 程菲菲[1,2] 胡蓉蓉[1] 李文博[1] 罗伟民[1] 闫常峰[1,2] 

机构地区：[1]中国科学院广州能源研究所,广东广州510640 [2]中国科学院研究生院,北京100049

出　　处：《工程热物理学报》2011年第9期1605-1608,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No20806082;No.50306026);广东省自然科学基金(No.10151007006000016);广东省科技计划项目(No.2007A010701001;No.20070109-1);广州市科技计划资助项目(No.2006J1-C0421)

摘　　要：本文利用固定床反应器考察了自制催化剂在生物油水溶性组分重整制氢反应中的表现以及耦合水蒸气预处理的CO_2吸收剂对反应的影响。通过比较自制催化剂与商业催化剂Z417在重整反应中的催化性能,以及预处理吸收剂对重整反应的改进作用,结果表明:在反应温度为800℃,水油比为4.9的条件下,自制催化剂Ni/CeO_2-ZrO_2的氢产率和氢含量分别达到67.8%和61.8%,都高于商业催化剂。在耦合CO_2吸收剂的反应中,经水蒸气预处理的白云石吸收剂使气体产物氢气含量最高达到约93%,在反应吸收增强阶段氢产率接近80%,明显高于未处理过的吸收剂,而且温度越高,H_2产率也越高。The performance of self-made catalysts and dolomite sorbents after pretreatment in reforming reaction were investigated on a bench scale fixed-bed reactor for generation of hydrogen by steam reforming of bio-oil aqueous fraction. We compared the properties of self-made Ni/CeO2-ZrO2 catalysts and commercial nickel-based catalysts （Z417） and studied the promotion of dolomite sorbents after pretreatment in the reaction. The result showed that under the conditions of water to bio-oil ratio of 4.9 and reaction temperature at 800℃, H2 yield reaches the highest of 67.8% and H2 selectivity of 61.8% were obtained; and it is higher than commercial catalysts. After dolomite sorbents were steam-pretreated, the H2 selectivity raised to about 93% and H2 yield reaches nearly 80%. The performance of hydrogen production with pretreated sorbent is obviously higher than that without pretreatment. The higher temperature, the higher hydrogen yield.

关 键 词：制氢 吸收剂 催化剂 生物油 

分 类 号：TQ517.2[化学工程]