Inhibition effect in supercritical water oxidation of hydroquinone

Journal Article · Fri May 01 04:00:00 EDT 1998 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie970801j· OSTI ID:624354

Thammanayakatip, C; Oshima, Yoshito; Koda, Seiichiro ^[1]

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1. Univ. of Tokyo (Japan). Dept. of Chemical System Engineering

In the oxidation reactions of hydroquinone under a supercritical conditions (temperature of 683 K and pressure of 24.5 MPa), the conversion was found to become saturated despite the very fast initial reaction. This behavior was quite different from that under a subcritical condition (temperature of 633 K and pressure of 24.5 MPa). Under both conditions, p-benzoquinone was found to be an important intermediate. The yield of CO{sub 2} was very small, which indicates a strong inhibition effect of hydroquinone and/or its derivatives. These inhibition phenomena should be taken into account very carefully in the application of supercritical water oxidation for treating waste organic materials where a complete decomposition is very important.

• OSTI ID: 624354
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 5 Vol. 37; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BENZOQUINONES
CARBON DIOXIDE
CHEMICAL REACTION YIELD
OXIDATION
QUINONES
REACTION INTERMEDIATES
SUPERCRITICAL STATE
WASTE PROCESSING
WATER