Feasibility Analysis of Syngas Production via CO2 Absorption Enhanced Gasifier for Ammonia Synthesis
An alternative process of syngas production for ammonia synthesis was proposed in this paper.Syngas is made of coal and coal mine gas(CMM)by CO2 absorption enhanced gasification.Due to higher N2 content in CMM,it is possible to remove N2 supplement section or to replace air gasification by steam gasification.With the in-situ absorption of CO2,the syngas compositions at gasifier outlet can meet the inlet contents criteria of syngas refinery section which should be φ(H2)/φ(N2)= 3 and φ(CO2+CO)< 0.30%.In order to analyze the feasibility and operation conditions of the proposed process,syngas production reactor was simulated by thermodynamic model,from which the variations of syngas compositions with operation parameters were studied.Based on this work,it is able to determine the suitable operation parameters for gasifier operation and corresponding CMM flow rate.Considering the explosion limits variation of pressurized CMM,the feasible parameters for O2 removal reactor operation was calculated.Analysis results indicate that it is feasible to produce syngas for NH3 synthesis by coal and CMM co-gasification with in-situ CO2 capture.Meanwhile,it is advantage to simplify components adjustment section and syngas purification section.
CO2 absorption enhanced gasification Coal and CMM co-gasification Contents of CO2 and CO Operation conditions of syngas production reactor
Wang Xun
Key Laboratory of Advanced Energy and Power,Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing,100190,China;Research Center for Clean Energy and Power,Chinese Academy of Sciences,Lianyungang,Jiangsu,222069,China
国际会议
桂林
英文
1-11
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）