초록 ▼

A process for hot or supercritical water oxidative decomposition of wastes, particularly halogenated organic compounds, is described. The process employs a heterogeneous reagent which accelerates the decomposition and is effective to neutralize acidic byproducts. The reagent is maintained in suspens

A process for hot or supercritical water oxidative decomposition of wastes, particularly halogenated organic compounds, is described. The process employs a heterogeneous reagent which accelerates the decomposition and is effective to neutralize acidic byproducts. The reagent is maintained in suspension throughout the reaction by operating at conditions of temperature and pressure at which the heterogeneous reagent is largely or fully insoluble in water, and preferably at which liquid water is not present. Production of potentially corrosive brine is also minimized by operating at conditions under which sodium chloride is insoluble.

대표청구항 ▼

[ It is claimed:] [1.] A process for the decomposition of material selected from organic compounds, inorganic compounds, and combinations thereof, which process comprises:(a) heating a solid specific reactant, with agitation, in a reaction zone, in the absence of water, at conditions of temperature

[ It is claimed:] [1.] A process for the decomposition of material selected from organic compounds, inorganic compounds, and combinations thereof, which process comprises:(a) heating a solid specific reactant, with agitation, in a reaction zone, in the absence of water, at conditions of temperature and pressure at which the reactant is at least about 90% insoluble in water;wherein the specific reactant is effective to neutralize any acid gases produced in the decomposition;(b) adding hot water to the reaction zone, wherein said water is at conditions of temperature and pressure at which the specific reactant is a least about 90% insoluble, thereby forming a heterogeneous mixture of said solid reactant and water; and(c) contacting said mixture with a feed mixture, comprising the material to be decomposed in an aqueous medium, also at such conditions of temperature and pressure, in the presence of a gaseous oxidant,said contacting being carried out for a reaction time sufficient to convert about 99% or greater of the material to compounds which are environmentally acceptable, or which are amenable to further degradation to environmentally acceptable products.