Journal
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
Volume 177, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2022.108989
Keywords
Plasma pyrolysis; Waste management; Solid waste treatment; Plasma reactor; Syngas; Economics
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Funding
- GUJCOST, Department of Science & Technology, Gujarat, India
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Solid waste management has become a significant global concern due to the increase in per capita waste generation. Improper waste management practices have had a significant negative impact on the environment. Plasma pyrolysis technology offers an environmentally safe approach to converting solid waste into energy, producing high-quality syngas/hydrogen, and minimizing solid residue. This review examines the current status of plasma pyrolysis technology and its application in treating various types of solid waste, including hazardous waste. It also explores the compositions and uses of the resulting solid residue and syngas, as well as the design and generation sources of plasma reactors. Additionally, the cost estimation and challenges of this technology are discussed, along with recommendations to make it a viable option on a larger scale.
Solid waste management has received attention due to the rise in per capita waste generation worldwide. The widespread impact on the environment is notably high due to improper waste management. Currently, solid wastes are managed by different techniques over which, plasma pyrolysis seems advantageous due to its environment-safe processing, production of high-quality syngas/hydrogen, and a significant reduction in solid residue. Plasma pyrolysis technology converts solid wastes to energy by thermo-chemical processing in absence of oxygen. It offers a sustainable waste management option with minimal amount of harmful emissions. This review focuses merely on the current status of plasma pyrolysis technology. It critically reviews the research carried out on plasma pyrolysis technology for the treatment of a wide range of solid wastes, including hazardous waste. The compositions and applications of solid residue and syngas generated from plasma pyrolysis process are also incorporated. The plasma reactor designs and plasma generation sources are also investigated. A study of cost estimation to process different wastes is also presented. Furthermore, the challenges of this technology and recommended actions are also identified to make this technology a viable option on a larger scale. Plasma pyrolysis is a state-of-the-art technology that offers a promising future for effective treatment of solid waste.
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