Ni/Al_(2)O_(3)催化葡萄糖超临界水气化制氢性能强化机制研究  

The Study of Promotion Mechanism of Ni/Al_(2)O_(3)Catalyst for Supercritical Water Gasification of Glucose to Produce Hydrogen

作　　者：范存毅 寇家静 梁永 Fan Cunyi;Kou Jiajing;Liang Yong(Xiangyang Public Inspection and Testing Center,Xiangyang Hubei 441699,China;Hebei Engineering Research Center for Low Carbon Development and Resource Utilization of Fossil Energy,School of Vehicle and Energy,Yanshan University,Qinhuangdao Hebei 066004,China)

机构地区：[1]襄阳市公共检验检测中心,湖北襄阳441699 [2]燕山大学车辆与能源学院化石能源低碳开发与资源化利用河北省工程研究中心,河北秦皇岛066004

出　　处：《山西化工》2024年第11期1-3,共3页Shanxi Chemical Industry

基　　金：河北省自然科学基金-青年基金(E2023203210)。

摘　　要：超临界水气化湿生物质转化为清洁氢能,具有广阔的应用前景。本工作研究纤维素水解产物-葡萄糖超临界水气化制氢Ni/Al_(2)O_(3)催化剂的影响。实验结果表明,Ni/Al_(2)O_(3)催化剂可以有效促进葡萄糖气化生产氢气,在Ni/Al_(2)O_(3)作用下,葡萄糖的碳气化率可达90.8%,氢选择性达87.1%,总产气量和H_(2)产量分别为82.12 mol/kg和48.73 mol/kg,是K_(2)CO_(3)催化剂的3.0倍和3.2倍。气化机理研究表明Ni/Al_(2)O_(3)能促进葡萄糖形成更多小分子有机物,有利于生物质的热解反应和蒸汽重整反应生成更多的H_(2)和CO_(2)。该研究为后续进一步研究Ni/Al_(2)O_(3)催化纤维素类原生生物质气化制氢提供一定的参考意义。Supercritical water gasification of wet biomass into clean hydrogen energy represents an expansive frontier for innovative applications.This research delved into the influence of Ni/Al_(2)O_(3)catalyst on the performance of supercritical water gasification of glucose,a hydrolysis product of cellulose,for hydrogen production.The findings underscored the excellent efficiency of the Ni/Al_(2)O_(3)supported catalyst in facilitating the supercritical water gasification of glucose for hydrogen generation.Specifically,using Ni/Al_(2)O_(3)catalyst,the carbon gasification rate of glucose achieved a remarkable 90.8%,with a hydrogen selectivity of 87.1%.Moreover,the total gas yield and H_(2yield) over Ni/Al_(2)O_(3)catalyst reached 82.12 mol/kg and 48.73 mol/kg,respectively,which are 3.0 and 3.2 times than that of K_(2)CO_(3)catalyst.The Ni/Al_(2)O_(3)catalyst notably enhances the formation of smaller organic molecules from glucose,which is advantageous for the pyrolysis of biomass and the steam reforming reaction,thereby yielding an increased production of H_(2)and CO_(2).This study offers valuable insights for subsequent research endeavors,which focused on the catalytic gasification of cellulose-based native biomass for hydrogen production,utilizing Ni/Al_(2)O_(3)catalyst.

关 键 词：生物质 超临界水气化 葡萄糖制氢 产物分布 Ni/Al_(2)O_(3)催化剂 

分 类 号：X701[环境科学与工程—环境工程]