Techno-economic analysis for CO2 reforming of a medium-grade landfill gas in a membrane reactor for H2 production. (20th January 2018)

• Record Type: Journal Article
• Authors: Heo, Juheon; Lee, Boreum; Lim, Hankwon
• Is Part Of: Journal of cleaner production. Volume 172(2018)
• Page Start: 2585
• Page End: 2593
• Publication Date: 2018-01-20
• Subjects: CO2 reforming -- Medium-grade landfill gas -- Techno-economic analysis -- Membrane reactor -- H2 production; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2017.11.151
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: In this paper, we report techno-economic analysis for CO2 reforming of a medium-grade landfill gas in a membrane reactor (MR) for a H2 production capacity of 7 m 3 h −1 in Korea. Parametric studies for the effect of key operating conditions like a H2 permeance, a H2 O sweep gas flow rate, and temperature on the performance in a conventional packed-bed reactor (PBR) and a MR were conducted using Aspen HYSYS ®, a commercial process simulator. Based on process simulation studies, economic analysis was carried out to find a unit H2 production cost for both a PBR and a MR. Respective unit H2 production costs of 9.72 and 6.46 $ kgH2 −1 were obtained for a PBR and a MR showing about 34% reduction in the MR. Sensitivity analysis was employed to identify key economic factors to determine a unit H2 production cost with labor the most influential factor for both reactors. Probability analysis (PA) was performed with influential factors based on a Monte-Carlo simulation method as uncertainty analysis and a cumulative probability (CP) curve was created for a PBR and a MR under various discount rates from 2 to 10% and key factor ranges from ±10 to ±40%. PA using stochastic approach provided a wide range of a unit H2 production cost coupled with its probability and a critical CP value at which the effect of key factor range on a unit H2 production cost was reversed.