镍基双效催化剂催化焦油重整制氢实验  

Experimental on hydrogen production from tar reforming catalyzed by nickel-based double-effect catalyst

作　　者：张津宁 谢华清 吴贞国[1] 郭锐 陆寒 Zhang Jinning;Xie Huaqing;Wu Zhenguo;Guo Rui;Lu Han(School of Metallurgy,Northeastern University,Shenyang 110819,China;Institute for Frontier Technologies of Low-carbon Steelmaking,Northeastern University,Shenyang 110819,China;Liaoning Province Engineering Research Center for Frontier Technologies of Low-carbon Steelmaking,Shenyang 110819,China;Weichai New Energy Power Technology Co,Ltd,Weifang 261043,China)

机构地区：[1]东北大学冶金学院,沈阳110819 [2]东北大学低碳钢铁前沿技术研究院,沈阳110819 [3]辽宁省低碳钢铁前沿技术工程研究中心,沈阳110819 [4]潍柴新能源动力科技有限公司,山东潍坊261043

出　　处：《材料与冶金学报》2023年第4期403-408,共6页Journal of Materials and Metallurgy

基　　金：中央高校基本科研业务费项目(N2225043)。

摘　　要：采用共沉淀法制备Ni-CaO-(CaO)_(12)(Al_(2)O_(3))7双效催化剂并用于焦油的吸附强化重整制氢研究,选用均匀试验法设计实验,考察温度、水碳比及催化剂质量对焦油的吸附强化重整反应过程中氢产率的影响,获得最佳重整反应条件.对双效催化剂进行Ce掺杂改性,考察不同的Ce质量分数对催化剂性能的影响.研究结果表明:在镍基双效催化剂的作用下,当温度为740℃、水碳比为15、催化剂质量为30 g时氢产率最高,为83.29%,而实际反应中氢产率为81.98%,二者相对误差较小且在允许范围内;Ce的掺杂改变了活性组分的分布情况,促进了焦油重整反应、水煤气变换反应的进行,其中掺杂6%Ce(6%为Ce的质量分数)的改性催化剂表现出了最好的催化活性,氢产率可达86.84%.Ni-CaO-(CaO)_(12)(Al_2O_3)_7 double-effect catalyst was prepared by the coprecipitation method and used in the adsorption-enhanced reforming of tar for hydrogen production. The uniform test method was selected to design the experiment, in turn, to investigate the effects of temperature, steam/carbon(S/C) ratio, and catalyst quality on hydrogen productivity during the adsorption-enhanced reforming of tar, to obtain the best reaction conditions. The double-effect catalyst was modified by Ce and the effect of different Ce mass fractions on the performance of the catalyst was investigated. The results showed that under the action of a nickel-based double-effect catalyst, the highest hydrogen yield was 83.29% at the temperature of 740 ℃, the S/C ratio of 15, and the catalyst quality of 30 g. Besides, the hydrogen yield was 81.98%, and the relative error was small and within the allowable range. It was found that the doping of Ce changed the distribution of active components and promoted the tar reforming reaction and water-gas shift reaction. The modified catalyst doped with 6% Ce(6% was mass fraction of Ce) had the best catalytic activity, and the hydrogen yield reached 86.84%.

关 键 词：焦油 氢气 双效催化剂 CO_(2)吸附 改性 

分 类 号：TF[冶金工程]