【摘要】 以催化裂解煤矿瓦斯制取氢气或纳米碳管为主要目的,采用旋转超重力场强化传质和反应的方法,研究了模拟煤矿瓦斯气体在旋转超重力场反应器中催化裂解的过程和影响因素.经试验研究得出:旋转超重力对催化剂表面的积碳起着强化分离作用,可有效降低催化剂表面固体碳的沉积和覆盖,有利于延续催化剂的使用寿命.本实验采用N i/SiO2催化剂,装填量为4 g,较适宜的工艺条件为旋转床转速780 r/m in、反应温度560℃,气体浓度和气体流量参数的优化根据目的产物(如氢气或纳米碳管)确定.更多还原

【Abstract】 The aim of this study is catalytic decomposition of coal gas to produce hydrogen or carbon nano-tubes（CNTs）.With the method of rotating Higee field strengthened mass transfer and reaction,it was studied that the process and influencing factors of catalytic decomposition of mimic coal gas in rotating catalyst packed bed reactor in.Experimental results show that super gravity field produced by rotating bed plays the important role to remove the depositing solid carbon from the surface of catalyst,and can effectively reduce the deposition and cover of carbon on the surface of catalyst,and can prolong the life of catalyst.The Ni/SiO₂ catalyst was used and its filled quantity was 4 g in this experiment.Suitable technology of the study as follows: rotating speed is 780 r/min or so and reaction temperature is about 560 ℃,but apt concentration and flow of gas can be determined by integrating with the goal product,such as hydrogen or CNTs.更多还原