炭催化富CH_(4)气CO_(2)重整制合成气及动力学研究  

Study on Carbon Catalyzed CO_(2)Reforming of CH_(4)Rich Gas to Syngas and Its Macro Kinetics

作　　者：徐英 王晓敏 张国杰[3] 王吉明 陈磊[3] 张永发[3] Xu Ying;Wang Xiaomin;Zhang Guojie;Wang Jiming;Chen Lei;Zhang Yongfa(College of Chemistry and Biological Engineering,Guangxi Normal University for Nationalities,Chongzuo 532200,China;College of Mathematics,Physics and Electronic Information Engineering,Guangxi Normal University for Nationalities,Chongzuo 532200,China;State Key Laboratory of Clean and Efficient Coal Utilization,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]广西民族师范学院化学与生物工程学院,广西崇左532200 [2]广西民族师范学院数理与电子信息工程学院,广西崇左532200 [3]太原理工大学省部共建煤基能源清洁高效利用国家重点实验室,山西太原030024

出　　处：《山东化工》2023年第15期1-5,共5页Shandong Chemical Industry

基　　金：广西高等教育本科教学改革工程项目(项目编号:2021JGA342);广西民族师范学院科研经费资助项目(2021BS005,2021JS012)。

摘　　要：以UGI煤气发生炉为基础,在实验室设备装置上模拟气化炉上吹阶段,通入模拟混合气制备合成气,开发了一套新的制备合成气工艺。通过实验研究发现,反应温度和半焦粒度对甲烷转化率具有重要影响。加入水蒸气可以提高炭材料催化剂的稳定性和甲烷转化率,这主要是由于加入水蒸气可以气化半焦表面生成的积碳,同时生成新的活性位给甲烷二氧化碳重整反应提供活性,从而促进甲烷和二氧化碳转化。另外,通过对水蒸气条件下富甲烷气二氧化碳重整动力学研究,得到了炭催化富甲烷气二氧化碳重整的表观活化能为199.7 kJ·mol^(-1)。Based on the UGI gas generator,a new synthesis gas preparation process was developed by simulating the upward blowing stage of the gasifier on the laboratory equipment and introducing the simulated mixed gas to prepare the synthesis gas.Through experimental research,it is found that the reaction temperature and the particle size of the semi-coke have an important influence on the conversion of methane.The addition of water vapor can improve the stability and methane conversion over the carbon material catalyst.This is mainly because the addition of water vapor can gasify the carbon deposits on the surface of the semi-coke and generate new active sites,thereby promoting the conversion of methane and carbon dioxide.In addition,by studying the kinetics of carbon dioxide reforming of methane-enriched gas under the condition of steam,the apparent activation energy of carbon-catalyzed carbon dioxide reforming of methane-enriched gas was obtained as 199.7 kJ·mol^(-1)。

关 键 词：炭材料 富甲烷气 重整 合成气 动力学 

分 类 号：TQ536[化学工程—煤化学工程] TK114[动力工程及工程热物理—热能工程]