naa a22 4500 51076603X CHVBK 20180411083157.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11630-013-0636-8 doi (NATIONALLICENCE)springer-10.1007/s11630-013-0636-8 Technical assessment of synthetic natural gas (SNG) production from agriculture residuals [Elektronische Daten] [Guohui Song, Fei Feng, Jun Xiao, Laihong Shen] This paper presents thermodynamic evaluations of the agriculture residual-to-SNG process by thermochemical conversion, which mainly consists of the interconnected fluidized beds, hot gas cleaning, fluidized bed methanation reactor and Selexol absorption unit. The process was modeled using Aspen Plus software. The process performances, i.e., CH4 content in SNG, higher heating value and yield of SNG, exergy efficiencies with and without heat recovery, unit power consumption, were evaluated firstly. The results indicate that when the other parameters remain unchanged, the steam-to-biomass ratio at carbon boundary point is the optimal value for the process. Improving the preheating temperatures of air and gasifying agent is beneficial for the SNG yield and exergy efficiencies. Due to the effects of CO2 removal efficiency, there are two optimization objectives for the SNG production process: (I) to maximize CH4 content in SNG, or (II) to maximize SNG yield. Further, the comparison among different feedstocks indicates that the decreasing order of SNG yield is: corn stalk > wheat straw > rice straw. The evaluation on the potential of agriculture-based SNG shows that the potential annual production of agriculture residual-based SNG could be between 555×108 ∼ 611×108 m3 with utilization of 100% of the available unexplored resources. The agriculture residual-based SNG could play a significant role on solving the big shortfall of China's natural gas supply in future. Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg, 2013 synthetic natural gas nationallicence agriculture residual nationallicence biomass gasification nationallicence methanation nationallicence fluidized bed nationallicence exergy nationallicence Song Guohui Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut Feng Fei Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut Xiao Jun Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut Shen Laihong Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut Journal of Thermal Science Springer Berlin Heidelberg 22/4(2013-08-01), 359-365 1003-2169 22:4<359 2013 22 11630 https://doi.org/10.1007/s11630-013-0636-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11630-013-0636-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Song Guohui Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Feng Fei Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Xiao Jun Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Shen Laihong Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 773 0- Journal of Thermal Science Springer Berlin Heidelberg 22/4(2013-08-01), 359-365 1003-2169 22:4<359 2013 22 11630 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer