Co-gasification of municipal solid waste and biomass in a commercial scale downdraft gasifier. (15th November 2018)

• Record Type: Journal Article
• Authors: Bhoi, Prakashbhai R.; Huhnke, Raymond L.; Kumar, Ajay; Indrawan, Natarianto; Thapa, Sunil
• Is Part Of: Energy. Volume 163(2018)
• Page Start: 513
• Page End: 518
• Publication Date: 2018-11-15
• Subjects: Municipal solid waste (MSW) -- Switchgrass -- Co-gasification -- Syngas -- Downdraft gasifier; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2018.08.151
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: In this study, municipal solid waste was gasified with switchgrass, i.e., co-gasification, using a commercial-scale downdraft gasifier to produce power. The experiments were performed using a commercial-scale 100 kg/h downdraft gasifier at co-gasification ratios of 0, 20 and 40%. The hot and cold gas efficiencies, syngas compositions, heating value and yield, gasifier temperatures and tar content were measured and analyzed. The results indicate that co-gasification of up to 40% MSW performed satisfactorily. The heating values of syngas were 6.2, 6.5 and 6.7 MJ/Nm 3 for co-gasification ratios of 0, 20 and 40%, respectively. The cold and hot gas efficiencies were 60.1, 51.1 and 60.0% and 65.0, 55.2 and 64.4% for co-gasification ratios of 0, 20 and 40%, respectively. Highlights: MSW could be utilized as an energy feedstock through co-gasification. Co-gasification of up to 40% MSW resulted in syngas heating value of 6.5–6.7 MJ/Nm 3 . The cold and hot gas efficiencies at 40% CGR were 60 and 65%, respectively. Co-gasification of MSW significantly reduces tar content.