CAJ | 학술논문

甲烷化反应过程的主要问题是“烧结”和“积炭”。基于甲烷化反应的强放热、减分子特性和对反应机理的认识，从催化剂与反应器的匹配性角度，论述了当前的主要甲烷化工艺、甲烷化催化剂、甲烷化反应及过程强化方法。流化床技术可有效防止催化剂的积炭和烧结，从与流化床反应器匹配的催化剂结构设计源头出发，制备具有耐磨损、易流化、低密度的高活性甲烷化催化剂，是流化床甲烷化发展的一个重要途径。
갑완화반응과정적주요문제시“소결”화“적탄”。기우갑완화반응적강방열、감분자특성화대반응궤리적인식，종최화제여반응기적필배성각도，논술료당전적주요갑완화공예、갑완화최화제、갑완화반응급과정강화방법。류화상기술가유효방지최화제적적탄화소결，종여류화상반응기필배적최화제결구설계원두출발，제비구유내마손、역류화、저밀도적고활성갑완화최화제，시류화상갑완화발전적일개중요도경。
Carbon deposition and sintering of metal particles are the two dominating reasons for deactivation of the methanation catalyst. Based on the strong exothermic reaction accompanied by a large decrease in mole number and methanation mechanism,from the perspective of the matching of catalyst and reactor, this paper summarizes the development of main CO methanation techniques, CO methanation catalysts, reaction mechanism of CO methanation and its process intensifications. Fluidized bed reactors have the advantages in preventing the carbon deposition and sintering of Ni catalysts. Thus, the design of wear-resistant, easy fluidized and low density catalyst structure particles that applicable to fluidized bed reactors should be a feasible way and the new direction for the development of methanation techniquesvia fluidized bed reactors.