Chemical reactions of organic compounds in supercritical water gasification and oxidation

Supercritical water is a benign reaction medium to convert organic matters through supercritical water gasification and supercritical water oxidation into flammable gaseous and harmless substances, respectively. This work systematically summarizes main chemical reactions of some typical organic compounds in supercritical water with or without oxidant for the first time. These compounds include hydrocarbons, proteins, cellulose, lignins, phenols, alcohols, aldehydes, ketones, organic acids, and some N-, Cl-, Br-, F-, S- and P-containing organic matters. Their main conversion pathways, reaction processes, intermediate products, final products and influence factors are analyzed deeply. This information helps to understand and predict corresponding reaction mechanisms and to better achieve objective products in supercritical water gasification and supercritical water oxidation. (c) 2020 Elsevier Ltd. All rights reserved.

Automated summary

This work systematically summarizes the main chemical reactions of some typical organic compounds in supercritical water for the first time, and deeply analyzes their main conversion pathways, reaction processes, intermediate products, final products, and influencing factors.