Reactions of Organic Compounds with Supercritical Water Involving ChemicalOxidation, 1992

摘要

Initial interest in the reactions of supercritical water (SW) with organiccompounds developed because of the possible use of supercritical fluid to obtain cleaner, more versatile fluid products. An extraction of coal or above critical conditions water can react with many organic functional groups, which for some compounds leads to products significantly different than those obtained from pyrolysis. Thus, water may provide a means of removing heteroatoms as well as to function as a solvent. This paper describes the results of reactions of benzaldehyde, benzyl alcohol and benzylidenebenzylamine (C6H5CH2N=CHC6H5) with SW since these compounds were determined to be major intermediates in the reaction of benzylamine with determined to be major intermediates in the reaction of benzylamine with SW. In addition, the influences of ammonia and dihydroanthracene on the product distributions and extents of reaction were determined. Of particular interest is the reaction pathway leading to the formation of benzene and related products which requires an oxidation/hydrolysis sequence, terminated by decarboxylation to form hydrocarbons. The mechanistic significance of the benzene/toluene product yield ratios will be discussed.