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CO2 integration in high temperature steam gasification (HTSG) of solid fuels and blends with waste
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0001-9831-6633
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2016 (English)In: European Biomass Conference and Exhibition Proceedings, ETA-Florence Renewable Energies , 2016, no 24thEUBCE, p. 970-977Conference paper (Refereed)
Abstract [en]

Aim of the present work is to investigate the viability of modifying the high temperature steam gasification process by adding CO2 in an attempt to tailor value added gas suitable for the energy - chemicals production industry. Such an integrated process investigates the concepts of high temperature steam gasification (HTSG) with aspects from steam gasification under a rich in CO2 atmosphere(CO2HTSG). The present study aimed at investigating the beneficial or detrimental effect of modifying the existing HTSG atmosphere by partially recycling CO2 in lab scale and ideally emerging from a conventional CO2 production process. The effect of the process parameters on the producer gas quality, char and tar yields when gasified non-food woody biomass (WB) of forest origin, swedish coal (SC) and pre-treated plastic waste (PW) studied, as well as their weak blends. Results of the present study indicated synergies when materials of lignocellulosic origin with coal are co-gasified under high temperature/steam conditions, while the modified with CO2 steam gasification environment and at elevated temperature did affect also the quality of the producer gas. This effect depends on the feeding properties and steam gasification conditions, It seems that gasification at elevated temperature with steam-carbon-dioxide decreased the reactivity of chars however blending with biomass at low percentages maximized the H2 and CO2 production. 

Place, publisher, year, edition, pages
ETA-Florence Renewable Energies , 2016. no 24thEUBCE, p. 970-977
Keywords [en]
Biomass, CO2, Coal, Gasification, Steam, Waste
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-216870Scopus ID: 2-s2.0-85019709104OAI: oai:DiVA.org:kth-216870DiVA, id: diva2:1160802
Conference
European Biomass Conference and Exhibition Proceedings
Note

Export Date: 24 October 2017; Conference Paper; Correspondence Address: Skoulou, V.; The University of Hull, School of Engineering, Kingston upon Hull, United Kingdom; email: v.skoulou@hull.ac.uk; Funding details: ENISA, European Union Agency for Network and Information Security; Funding text: Dr. Skoulou gratefully acknowledges the European Union and BRISK research facilities Transnational Access project for funding the present work, and KTH for hosting and permiting access and to its research facilities. QC 20171128

Available from: 2017-11-28 Created: 2017-11-28 Last updated: 2017-11-28Bibliographically approved

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