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Catalytic Wet Oxidation: Mathematical Modeling of Multicompound Destruction

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Abstract:

A mathematical model of a three-phase catalytic reactor, CatReac, was developed for analysis and optimization of a catalytic oxidation reactor that is used in the International Space Station potable water processor. The packed-bed catalytic reactor, known as the volatile reactor assembly (VRA), is operated as a three-phase reactor and contains a proprietary catalyst, a pure-oxygen gas phase, and the contaminated water. The contaminated water being fed to the VRA primarily consists of acetic acid, acetone, ethanol, 1-propanol, 2-propanol, and propionic acid ranging in concentration from 1 to 10 mg/L. The Langmuir-Hinshelwood Hougen-Watson (L-H) (Hougen, 1943) expression was used to describe the surface reaction rate for these compounds. Single and multicompound short-column experiments were used to determine the L-H rate parameters and calibrate the model. The model was able to predict steady-state multicomponent effluent profiles for short and full-scale reactor experiments.

Keywords: ACID OXIDATION; ALCOHOL OXIDATION; CATALYTIC REACTOR; CATALYTIC REACTOR MODEL; OXIDATION; POLAR COMPOUND OXIDATION; REACTOR; THREE-PHASE REACTOR; WATER TREATMENT; WET OXIDATION

Document Type: Research Article

DOI: https://doi.org/10.2175/106143003X140962

Publication date: 2003-03-01

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    Water Environment Research� (WER�) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

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