Two-Stage Pyrolysis/Gasification and Plasma Conversion Technology for the Utilization of Solid Waste

Two-stage pyrolysis/gasification and plasma conversion technology for the utilization of solid waste is an advanced and efficient technology of waste treatment and resource utilization, which is expected to overcome the shortcomings of a single pyrolysis/gasification process and produce high-quality syngas or other chemical products. This article summarizes this technology's main process steps that then progress to the discussions of two categories of processes classified by thermal plasma and nonthermal plasma, focusing on the reactor combination and the influences of technical parameters. Besides, the mechanisms of two-stage pyrolysis/gasification and plasma conversion technology are discussed, as well as the engineering application and environmental impacts of this technology for the further comprehension of the overall performance. It is believed that two-stage pyrolysis/gasification and plasma conversion technology is considered to be a very potential, clean, efficient, and environment-friendly method for solid-waste treatment.