生物油水蒸气重整制氢过程中的积碳研究  

Research on carbon deposit in the process of hydrogen production by steam reforming of bio-oil

作　　者：廖丽芳[1] 张正东 蓝平 许庆利[1] 刘文晋易 颜涌捷[1] Liao Lifang;Zhang Zhengdong;Lan Ping;Xu Qingli;Liu Wenjinyi;Yan Yongjie(School of Resources and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China;Guangxi Key Laboratory for Polysaccharide Materials and Modifications,School of Marine Sciences and Biotechnology,Guangxi University for Nationalities,Nanning Guangxi 530008,China)

机构地区：[1]华东理工大学资源与环境工程学院,上海200237 [2]广西民族大学海洋与生物技术学院广西多糖材料与改性重点实验室,广西南宁530008

出　　处：《石油化工》2022年第5期518-522,共5页Petrochemical Technology

基　　金：国家自然科学基金项目(21376084);广西多糖材料与改性重点实验室开放基金项目(GXPSMM20-9)。

摘　　要：以浸渍法制备的Ni/Al_(2)O_(3)为催化剂,在固定床反应器中对生物油水蒸气重整制氢过程的积碳进行了研究。实验结果表明,随反应温度的升高,积碳速率和整体积碳率先升高后降低,在600℃左右积碳速率和整体积碳率达到最大值,分别为143.68 mg/(g·h)和24.89%。随水碳摩尔比的增加,积碳速率和整体积碳率逐渐降低,当水碳摩尔比从1增加到4时,积碳速率降低了72.79%,整体积碳率下降了72.77百分点。催化剂积碳分析结果表明,积碳和烧结是造成催化剂失活的主要原因,催化剂积碳主要以丝状碳形式存在。The carbon deposition of steam reforming of bio-oil was studied in a fixed-bed reactor,and Ni/Al_(2)O_(3) was prepared by the impregnation method.The results showed that as the reaction temperature increases,the coke formation rate and total coke rate increase firstly and then decrease.There is a peak around 600℃,and the coke formation rate and total coke rate are the maximum values of 143.68 mg/(g·h)and 24.89%respectively.The coke formation rate and total coke rate decrease with H_(2)O/C mole ratio increasing.When H_(2)O/C mole ratio increases from 1 to 4,the coke formation rate decreases by 72.79%,and the total coke rate decreases by 72.77 percentage.The analyses of catalyst carbon deposition show that carbon deposition and sintering are the main causes of catalyst deactivation,and the catalyst carbon deposition mainly exists in the form of filamentous carbon.

关 键 词：生物油 催化剂 重整 积碳 氢气 

分 类 号：TQ9[化学工程]