Feasibility Study of Decomposing Methane with Hydroxyl Radicals
Coal-mine gas disaster is one of the most serious coal-mine disasters in China. The main component of coal-mine gas, methane is chemically stable and very difficult to be degraded by conventional methods. Hydroxyl radical (-OH), due to strong oxidizing ability and high electro-negativity, is the primary degradation source of atmospheric methane. In the present study, methane degradation using hydroxyl radicals generated by Fentons reagent, Fe2+/H2O2, has been carried out in the self-designed bubbling reactor. The effects of H2O2 concentration, dosage of FeSO4?7H2O and initial pH value on methane removal efficiency were investigated respectively. It has been found that the optimal reaction conditions were 100 mM of hydrogen peroxide, 2.00 mM of ferrous ion and initial pH value of 2.5. Under optimal conditions, the removal efficiency of methane reached 25％ after 30 min. The preliminary experimental results unambiguously demonstrate that the degradation of methane using hydroxyl radicals generated by Fentons reagent is feasible.
Methane Hydroxyl radical Degradation Fentons reagent
Jianping Wei Bensheng Yu Juan Yang Jun Dai
State Key Laboratory Cultivation Base for Gas Geology and Gas Control, No.2001, Century Avenue, Jiaozuo, 454003, Peoples Republic of China Henan Polytechnic University, No.2001, Century Avenue, Jiaozuo, 454003, Peoples Republic of China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
914-923
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）