工程科学学报，第39卷，第6期：823829,2017年6月 Chinese Journal of Engineering,Vol.39,No.6:823-829,June 2017 DOI:10.13374/j.issn2095-9389.2017.06.002:http://journals.ustb.edu.cn 基于过渡金属氧化物载氧体的煤矿通风瓦斯处理性能 吴举茂”，苏庆泉12)四，武永健”，杨海洋) 1)北京科技大学能源与环境工程学院，北京1000832)北京科技大学节能与环保北京高校工程研究中心，北京100083 区通信作者，E-mail:suqingquan(@ustb.edu.cm 摘要采用反应管对基于过渡金属氧化物载氧体的煤矿通风瓦斯(VAM)处理性能展开了研究.结果表明，经活化后的三 种载氧体均能将CH4完全转化为C02,其活性顺序为CuO60/y-Al203>Ni060/y-Al203>Fe20,60/yAl203:基于Cu060/y- A山，O,的CH,转化率随空速的增加而减小，随CO负载量和床层温度的升高而增大：煤矿通风瓦斯中的CH浓度越低，CH, 转化率达到90%所需的床层温度就越低：对活性物质低分散高负载的C060/yAl,03和活性物质高分散低负载的Cu05.5/ y-A山，0，两种Cu0/yAl,0,系载氧体进行了比较，发现两种载氧体的CH转化机理均包含有化学链燃烧和催化燃烧两种机 理，基于催化燃烧机理的CH转化率在一定温度下存在极大值，当床层温度高于该极大值温度时，化学链燃烧对CH转化率 的贡献明显大于催化燃烧对CH转化率的贡献；相同条件下，CuO5.5/y-Al,0,的初期活性优于Cu60/y-Al,0,但CuO60/Y- A,0,的活性稳定性优于Cu05.51y-Al,0g· 关键词通风瓦斯：甲烷转化率：载氧体：化学链燃烧：催化燃烧 分类号X752 Performance of ventilation air methane combustion over transition metal oxide oxygen carriers WU Ju-mao,SU Qing-quan),WU Yong jian),YANG Hai-yang 1)School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Beijing Higher Institution Engineering Research Center of Energy Conservation and Environmental Protection,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:suqingquan@ustb.edu.cn ABSTRACT The performance of combustion of ventilation air methane (VAM)over transition metal oxide oxygen carriers was stud- ied through experiments with using tube reactors.The results show that the activity of activated oxygen carriers in converting CH to CO2 is as follows:Cu060/Y-Al2O3>Ni060/y-Al2O>Fe20,60/Y-Al2O3.CH conversion based on Cu060/Y-Al2O:decreases with increasing gas hourly space velocity,but increases with increasing bed temperature and Cuo loading.The lower the initial CH con- centration of ventilation air methane,the lower is the temperature for the CH,conversion of 90%.There are catalytic combustion mechanisms and chemical-looping combustion mechanisms for CH,combustion over both Cu060/yAl2O,for which dispersion of the active component is low but loading is high,and Cu5.5/Al2O,for which dispersion of the active component is high but loading is low.There exists a maximum for CH,conversion based on the catalytic combustion mechanism at some temperatures,and when the bed temperature is higher than this temperature,the contribution of chemical-looping combustion is greater than that of catalytic com- bustion.The initial activity of Cu05.5/y-Al,O,is higher than that of Cu060/yAl,O,while the stability of Cu060/y-Al,O activity is better than that of Cu05.5/yAl,O,activity under the same conditions. KEY WORDS ventilation air methane:methane conversion:oxygen carrier;chemical-ooping combustion:catalytic combustion 收稿日期：2016-08-18 基金项目：北京市科技基金资助项目(Z131100005613045)工程科学学报，第 39 卷，第 6 期: 823--829，2017 年 6 月 Chinese Journal of Engineering，Vol． 39，No． 6: 823--829，June 2017 DOI: 10． 13374 /j． issn2095--9389． 2017． 06． 002; http: / /journals． ustb． edu． cn 基于过渡金属氧化物载氧体的煤矿通风瓦斯处理性能 吴举茂1) ，苏庆泉1，2) ，武永健1) ，杨海洋1) 1) 北京科技大学能源与环境工程学院，北京 100083 2) 北京科技大学节能与环保北京高校工程研究中心，北京 100083 通信作者，E-mail: suqingquan@ ustb． edu． cn 收稿日期: 2016--08--18 基金项目: 北京市科技基金资助项目( Z131100005613045) 摘 要 采用反应管对基于过渡金属氧化物载氧体的煤矿通风瓦斯( VAM) 处理性能展开了研究． 结果表明，经活化后的三 种载氧体均能将 CH4 完全转化为 CO2，其活性顺序为 CuO60 /γ-Al2O3 ＞ NiO60 /γ-Al2O3 ＞ Fe2O360 /γ-Al2O3 ; 基于 CuO60 /γ- Al2O3 的 CH4 转化率随空速的增加而减小，随 CuO 负载量和床层温度的升高而增大; 煤矿通风瓦斯中的 CH4 浓度越低，CH4 转化率达到 90% 所需的床层温度就越低; 对活性物质低分散高负载的 CuO60 /γ-Al2O3 和活性物质高分散低负载的 CuO5. 5 / γ-Al2O3 两种 CuO/γ-Al2O3 系载氧体进行了比较，发现两种载氧体的 CH4 转化机理均包含有化学链燃烧和催化燃烧两种机 理，基于催化燃烧机理的 CH4 转化率在一定温度下存在极大值，当床层温度高于该极大值温度时，化学链燃烧对 CH4 转化率 的贡献明显大于催化燃烧对 CH4 转化率的贡献; 相同条件下，CuO5. 5 /γ-Al2O3 的初期活性优于 Cu60 /γ-Al2O3，但 CuO60 /γ- Al2O3 的活性稳定性优于 CuO5. 5 /γ-Al2O3 ． 关键词 通风瓦斯; 甲烷转化率; 载氧体; 化学链燃烧; 催化燃烧 分类号 X752 Performance of ventilation air methane combustion over transition metal oxide oxygen carriers WU Ju-mao1) ，SU Qing-quan1，2)  ，WU Yong-jian1) ，YANG Hai-yang1) 1) School of Energy and Environmental Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Beijing Higher Institution Engineering Ｒesearch Center of Energy Conservation and Environmental Protection，University of Science and Technology Beijing，Beijing 100083，China Corresponding author，E-mail: suqingquan@ ustb． edu． cn ABSTＲACT The performance of combustion of ventilation air methane ( VAM) over transition metal oxide oxygen carriers was stud￾ied through experiments with using tube reactors． The results show that the activity of activated oxygen carriers in converting CH4 to CO2 is as follows: CuO60 /γ-Al2O3 ＞ NiO60 /γ-Al2O3 ＞ Fe2O360 /γ-Al2O3 ． CH4 conversion based on CuO60 /γ-Al2O3 decreases with increasing gas hourly space velocity，but increases with increasing bed temperature and CuO loading． The lower the initial CH4 con￾centration of ventilation air methane，the lower is the temperature for the CH4 conversion of 90% ． There are catalytic combustion mechanisms and chemical-looping combustion mechanisms for CH4 combustion over both CuO60 /γ-Al2O3，for which dispersion of the active component is low but loading is high，and CuO5. 5 /γ-Al2O3，for which dispersion of the active component is high but loading is low． There exists a maximum for CH4 conversion based on the catalytic combustion mechanism at some temperatures，and when the bed temperature is higher than this temperature，the contribution of chemical-looping combustion is greater than that of catalytic com￾bustion． The initial activity of CuO5. 5 /γ-Al2O3 is higher than that of CuO60 /γ-Al2O3，while the stability of CuO60 /γ-Al2O3 activity is better than that of CuO5. 5 /γ-Al2O3 activity under the same conditions． KEY WOＲDS ventilation air methane; methane conversion; oxygen carrier; chemical-looping combustion; catalytic combustion