Discriminate mass transfer in a wet oxidation system
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United States of America Patent
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Jul 17, 2018
Grant Date -
Mar 8, 2018
app pub date -
Mar 11, 2016
filing date -
Mar 12, 2015
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Abstract
A method for treatment of a carbonaceous feedstock such as coal or biomass. The method comprises adsorbing an oxidizing agent selected from an oxygen-containing gas, hydrogen peroxide, ozone and oxidizing acids from a liquid phase of an aqueous mixture comprising water and the carbonaceous feedstock onto the carbonaceous feedstock to produce an aqueous mixture with the liquid phase having a reduced content of the oxidizing agent and the carbonaceous feedstock having oxidizing agent adsorbed on a surface thereof, and heating this aqueous mixture to a temperature and for a sufficient time to partially oxidize and solubilize at least a portion of the carbonaceous feedstock. The reaction products may be chemically or physically separated, recycled to the heating step and/or subjected to microbial digestion in order to generate one or more desirable products from the carbonaceous feedstock. The solid portion of the reaction products may be further processed to be used in the paper industry.
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