超富集植物制备活性炭催化气化动力学特性  

Catalytic gasification characteristics of activated carbon prepared by hyperaccumulator

作　　者：陈姗 李建新[2] 王永川[2] 何聪颖 孙海娜[2] CHEN Shan;LI Jianxin;WANG Yongchuan;HE Congying;SUN Haina(College of Energy Engineering,Zhejiang University,Hangzhou 310007,China;Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China)

机构地区：[1]浙江大学能源工程学院,浙江杭州310007 [2]浙江大学宁波理工学院,浙江宁波315100

出　　处：《热力发电》2019年第4期27-32,共6页Thermal Power Generation

基　　金：浙江省自然科学基金(LY16E060003;LY17E060003);宁波市自然科学基金(2017A610137)~~

摘　　要：为探索超富集植物资源化利用方法,本文以超富集植物为原料制备的活性炭作为催化剂,利用热重分析仪和管式炉进行了原煤的CO2气化实验,考察超富集植物制备活性炭对煤气化的催化效果,充分利用超富集植物富含重金属的特点,探究超富集植物的有效利用途径。结果表明:原煤中添加质量分数10%的超富集植物制备的活性炭,原煤失重率由58.01%提高至66.83%;气化温度在953.15～1168.15K区间,活化能由155.5k J/mol降至136.5 kJ/mol;管式炉气化终温为1 173.15 K时,碳转化率由78.88%提升至90.16%;随超富集植物制备活性炭添加量的增加,催化气化效果越好。In order to explore the resource utilization method o f hyperaccumulator, the hyperaccumulator was made into activated carbon. Moreover, to study the catalytic effect o f the activated carbon prepared by hyperaccumulator on coal, the CO2 gasification experiments o f coal were conducted in a thermogravimetric analyzer and a tube furnace. This study made full use o f the characteristics o f hyperaccumulator rich in heavy metals, and explored the effective utilization approach o f hyperaccumulator. The experimental results showed that, after 10% activated carbon prepared by the hyperaccumulator was added into the raw coal, the weight loss rate of the coal increased from 58.01% to 66.83%, the activation energy reduced from 155.5 kJ/mol to 136.5 kJ/mol at 953.15-1 168.15 K, the carbon conversion rate increased from 78.88% to 90.16% at 1 173.15 K in the tube furnace, and the catalysis effects turned better with the increasing amount o f activated carbon.

关 键 词：超富集植物 催化气化 重金属 活性炭 热天平 管式炉 

分 类 号：X705[环境科学与工程—环境工程]