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Journal article
Plasma-Induced Abatement of Tar from Syngas Produced in Municipal Waste Gasification: Thermodynamic Modeling with Experimental Validation
Plasma, v 8(1), 6
16 Feb 2025
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Abstract
Municipal waste gasification presents a promising avenue to extract useful energy from waste through syngas. This technology’s application is limited by tar formation (long-chain hydrocarbons), which can decrease energy conversion efficiency and applications of raw syngas. Non-thermal plasma-based tar degradation is a simple and cost-effective alternative to existing thermal and catalytic tar mitigation methods. While plasma stimulates tar reformation reactions like steam reformation, there are thermodynamic energy requirements associated with these endothermic processes. Determining thermodynamic energy requirements and the equilibrium composition of products during tar reformation can aid with the proper optimization of the treatment process. In the present study, thermodynamic modeling and experimental validation are conducted to study energy requirements and product formation during the plasma-assisted steam reformation of tar present in raw syngas with an inlet temperature of 300 °C and 30% moisture content. The thermodynamic study evaluated the effect of adding air into the system (to increase the temperature by oxidizing a portion of raw syngas). Results show that up to 75% of energy requirement can be brought down by adding up to 30% air; experimental validation using gliding arc discharge with 30% air addition agrees with the thermodynamic model finding. The thermodynamic model predicted an increase in H2 and CO concentration with the degradation of tar, but experimental validation reported a reduction in H2 and CO concentration with the degradation of tar, as syngas was consumed to increase the temperature to support oxidation, owing to the low temperature (300 °C) and significant moisture presence (~30%) of raw syngas analyzed in this study.
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Details
- Title
- Plasma-Induced Abatement of Tar from Syngas Produced in Municipal Waste Gasification: Thermodynamic Modeling with Experimental Validation
- Creators
- Mobish Abraham Shaji (Corresponding Author) - Drexel University, C. and J. Nyheim Plasma InstituteFrancis EbohAlexander Rabinovich - Drexel University, C. and J. Nyheim Plasma InstituteLiran DorAlexander Fridman - Drexel University, Mechanical Engineering and Mechanics
- Publication Details
- Plasma, v 8(1), 6
- Publisher
- MDPI
- Number of pages
- 17
- Grant note
- Binational Industrial Research and Development Foundation
This research was funded by Binational Industrial Research and Development Foundation, grant number 7157.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- C. and J. Nyheim Plasma Institute; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:001452730200001
- Scopus ID
- 2-s2.0-105001371977
- Other Identifier
- 991022028738004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- International collaboration
- Web of Science research areas
- Physics, Fluids & Plasmas