Fe-Mg-Co催化生物质热解实验特性研究——以烟杆热解为例  

Experimental characteristics investigation on Fe-Mg-Co catalytic pyrolysis of biomass:Taking tobacco pole as an example

作　　者：袁申富 李剑凤 鲁秋香 YUAN Shen-fu;LI Jian-feng;LU Qiu-xiang(School of Chemical Science and Engineering,Key Laboratory of Medicinal Chemistry for Natural Resource-Ministry of Education,National Demonstration Center for Experimental Chemistry and Chemical Engineering Education,Yunnan University,Kunming,650091 Yunnan,China)

机构地区：[1]云南大学化学科学与工程学院,自然资源药物化学教育部重点实验室,化学化工国家级实验教学示范中心,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2022年第1期136-142,共7页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(21968037);云南省科技厅面上项目(2019FB132);云南大学中青年培养计划(C176220200)。

摘　　要：探究了温度和催化剂Fe、Mg、Co以及不同催化剂添加比对烟杆热解制氢影响,找出最佳反应条件.结果表明,温度的升高有利于气体产率和热解转化率的提高,700℃时转化率最高.随着负载Fe量的增加,气体产率逐渐增加,当添加量为w=15%时,转化率达83.19%.Mg催化剂能促进氢气的生成.对于复合催化剂,Fe-Mg催化剂体系使气体产率增加,且H;的体积产量在催化剂配比为15%Fe+0.8%Mg(质量分数,下同)时达到最大,为113.48 mL/g.在15%Fe+0.8%Mg催化体系上继续负载Co催化剂,随着Co负载量的增加,催化热解总转化率增加,添加比为15%Fe+0.8%Mg+0.9%Co时,总转化率达到最大,为84.31%,氢气的体积含量降低,因此Co催化剂的负载对氢气的生成不利.In this paper, the effects of temperature and catalysts Fe, Mg, Co, and different catalyst addition ratios on hydrogen production from the pyrolysis of tobacco pole were explored to find the best reaction conditions. The results show that the temperature is conducive to the improvement of gas yield and total conversion. The total conversion obtained maximum yield at 700 ℃. The increase in the amount of supported Fe increases the gas yield greatly. When the addition ratio is 15%, the total conversion reaches 83.19%. Mg catalyst can promote the generation of hydrogen. For the composite catalyst, the Fe-Mg catalyst system increases the gas yield, and the H;content is the largest when the catalyst ratio is 15%Fe+0.8 Mg, which is 113.48 mL/g. After the15%Fe+0.8%Mg catalytic system continues to be loaded with Co catalyst, as the Co loading increases, the total conversion increases, when the addition ratio is 15% Fe+0.8%Mg+0.9%Co. The total conversion reached the maximum, 84.31%, and the hydrogen content decreased, so the loading of the Co catalyst was detrimental to the generation of hydrogen.

关 键 词：催化热解 生物质 烟杆 Fe-Mg-Co催化剂 氢气 温度 

分 类 号：TQ517[化学工程] TQ032