title: MSW to synthetic natural gas: System modeling and thermodynamics assessment.
abstract: To achieve environmental-friendly and energy-efficiency synthetic natural gas (SNG) production routing from municipal solid waste (MSW), a MSW-to-SNG process is unprecedentedly presented in this work, of which the designed configuration is developed and simulated with the aid of Aspen Plus. In addition, sensitivity analyses on major operation parameters, such as equivalence volume ratio (ER), steam-to-MSW mass ratio (S/M) and methanation pressure, are performed with the discussion of process efficiencies and SNG quality. In parallel, the comparison analysis is considered by adopting various MSW material. In this work, the composition of SNG mainly consists of 87.7% CH4, 2.9% CO2, 2.3% H2 and 7.1% N2. And lower heating value (LHV) together with Wobbe index of SNG are separately 31.66MJ/Nm(3) and 45.90MJ/Nm(3). Moreover, the wood-to-SNG, MSW-to-SNG and coal-to-SNG processes are carried out to demonstrate the superiority of the MSW-to-SNG process. The results reveal that the MSW-to-SNG process is a promising option to dispose MSW environmentally, meanwhile converting MSW to the valuable SNG.
authors.affiliation: Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China. Electronic address: zhulinswpi65@gmail.com.
authors.forename: Lin
authors.initials: L
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
authors.forename: Le
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
authors.forename: Junming
authors.initials: J
authors.lastname: Fan
authors.affiliation: Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
authors.forename: Peng
authors.initials: P
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Gas Process Engineering, School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
authors.forename: Luling
authors.initials: L
authors.lastname: Li
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis; D005740:Gases / Q000032:analysis; D006859:Hydrogen / Q000032:analysis; D008697:Methane / Q000032:analysis; D008962:Models, Theoretical; D012037:Refuse Disposal / Q000379:methods*; D062611:Solid Waste; D013816:Thermodynamics; D014934:Wood
chemical_list: D005740:Gases; D062611:Solid Waste; D002245:Carbon Dioxide; D006859:Hydrogen; D008697:Methane
keywords: Aspen Plus; Gasification; MSW; Methanation; Simulation; Synthetic natural gas