Title:
A Four-Step Gasification-Combustion Process for the Clean Conversion of MSW
Author(s):
Zhang, R., Yin, R., Luo, Y.
Document(s):
Paper
Poster
Abstract:
In view of the dioxin emission of incineration, a four-step gasification-combustion process is proposed in this work for the safe disposal of Municipal Solid Waste, consisting of updraft gasification zone, homogeneous conversion zone, staged combustion zone and ash melting zone. Updraft gasification is selected for its strong fuel adaptability and high thermal efficiency. In the gasification product, Cl can be in the form of Cl·, Cl2, HCl and C-Cl. After gasification, the syngas goes through the homogeneous conversion zone, where all the Cl is directional transferred into HCl, and the formation of dioxins is inhibited as a result. Subsequently, a proper-designed staged combustion procedure is applied to realize the selective oxidation of the gasification syngas. Combustible gases are completely oxidized and output heat energy, while Cl remains in HCl and no Cl· is reproduced.
Keywords:
emissions, gasification, municipal solid waste (MSW), dioxin
Topic:
Biomass Resources
Subtopic:
Municipal and Industrial Wastes
Event:
25th European Biomass Conference and Exhibition
Session:
1DV.1.62
Pages:
215 - 218
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-1DV.1.62
Price:
FREE
