旋转弧等离子体重整乙醇制氢的氧碳比研究  

Investigation of oxygen-to-carbon ratio on hydrogen production via rotating arc plasma ethanol reforming

作　　者：刘敦珂 黄基才 王素力[1] 孙海[1] 孙公权[1] LIU Dun-ke;HUANG Ji-cai;WANG Su-li;SUN Hai;SUN Gong-quan(Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian Liaoning 116023,China;University of Chinese Academy of Sciences,Beijing 100039,China)

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023 [2]中国科学院大学,北京100039

出　　处：《电源技术》2019年第12期1946-1950,共5页Chinese Journal of Power Sources

基　　金：中国科学院创新基金(CXJJ-17S082)

摘　　要：为了优化旋转弧等离子体部分氧化重整乙醇制氢的操作条件,通过模拟和实验研究氧碳比(O/C)对乙醇转化率、乙醇能量转化率、氢气选择性、氢气收率和干基氢气摩尔分数的影响。实验结果表明,乙醇流量为40 mL/min且O/C=0.6时,乙醇转化率最高,约100%;当O/C=1.0时,氢气选择性和收率最高,分别为81.3%和33.5%。等离子体重整副产物较多,当乙醇转化率最高时,氢气选择性和收率不一定最高。在氧碳比为0.5和0.6时,乙醇转化率的热力学模拟结果与实验结果比较接近。热力学模拟为后续旋转弧等离子体重整优化提供了热力学极限的指导。In order to optimize the operating conditions of hydrogen production from ethanol by partial oxidation reforming with rotating arc plasma,simulation and experiments were carried out to investigate the influences of oxygen-to-carbon ratio(O/C)on ethanol conversion rate,energy conversion efficiency,hydrogen selectivity,hydrogen yield and dry hydrogen molar fraction.The experimental results show that when the flow rate of ethanol is40 mL/min and O/C is 0.6,the conversion rate of ethanol is the highest,about 100%;when O/C is 1.0,the selectivity and yield of hydrogen are the highest,81.3%and 33.5%,respectively.There are more by-products in the plasma reforming,and hydrogen selectivity and yield are not the highest when ethanol conversion rate is the highest.When oxygen-to-carbon ratio is 0.5 and 0.6,respectively,thermodynamic simulation results of ethanol conversion rates are close to the experimental results.Thermodynamic simulation provide guidance about thermodynamic limits for subsequent rotating arc plasma reforming optimization.

关 键 词：旋转弧等离子体 乙醇 氧碳比 制氢 

分 类 号：TM911[电气工程—电力电子与电力传动]