Fast pyrolysis of biomass waste for hydrogen-rich gas;
生物质废弃物快速热解制取富氢气体的实验研究
Carbon monoxide removal from hydrogen-rich gas by selective catalytic oxidation;
富氢气体中一氧化碳选择催化氧化净化初探
The Ru/γ-Al2O3 catalysts with difference Ru-loading were prepared via incipient impregnation method,and the preferential oxidation of CO in the hydrogen-rich gas(PROX reaction)has been examined over Al2O3-supported Ru catalysts.
实验研究了以浸渍法制备的负载型Ru/γ-Al2O3催化剂体系上富氢气体中CO选择性氧化性能,考察了各反应工艺条件包括催化剂中贵金属的担载量、反应原料气中O2/CO的比、CO2和H2O的存在等因素对Ru/γ-Al2O3催化剂上CO选择性氧化活性的影响,采用H2-TPR和XRD手段对催化剂进行检测。
Considering the feasibility of hydrogen-enriching pre-reduction in two-step smelting reduction process,the effects of gas parameters and shaft heights on hydrogen-enriching reforming of gas in a imaginary carbon-based packed bed were simulated.
模拟结果表明,在碳基填充床内进行煤气富氢改质是可行的;相同的气体温度和气体流量下,碳消耗量随着碳基填充床的高度增加而先增加后减小,在碳基填充床高约2m时出现拐点,水蒸汽消耗量随着碳基填充床高度的增加而减小;待改质气体通过碳基填充床后,CO的体积分数随着碳基填充床高度增加而增加,H_2的体积分数随着碳基填充床高度的增加先增加后减小,在碳基填充床高约3m时出现拐点。
Considering the feasibility of hydrogen-enriching pre-reduction in COREX smelting reduction process, and in order to make the effective utilization of gas high-temperature physical heat,the effect of gas flux and tem- perature on hydrogen-enriching reforming of gas in an imaginary carbon-based packed bed was simulated.
模拟结果表明,在碳基填充床内进行煤气富氢改质是可行的;水消耗量随气流通量或气体温度的提高而增加,碳消耗量随气体温度的提高而增大,但随气流通量的增加而减少;改质后(?)(CO)随气流通量或气体温度的提高而减少,(?)(H_2)随气体温度的提高而增加,但随气流通量的增加则先增加后减少。
Effect of calcination temperature on CO selective oxidation in H_2-rich gas over Au/Fe_2O_3 catalyst;
焙烧温度对Au/Fe_2O_3选择性氧化富氢气体中CO催化性能的影响
The CO selective oxidation over Au/Fe_2O_3 catalyst prepared by coprecipitation method in H_2-rich gas was studied.
采用共沉淀法制备了Au/Fe2O3催化剂,并用于富氢气体中CO的选择性氧化反应。
In this thesis, supported gold catalysts were prepared and applied in the CO selective oxidation in H_2-rich gas.
本论文以此为出发点,制备了负载金催化剂,在富氢气体中对CO选择性氧化反应性能进行研究,并通过BET、XRD、TG-DTA和XPS分析手段对催化剂进行表征,考察其催化性能与结构的关系。