Apparatus and method for applying an oxidant in a hydrothermal oxidation process
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United States of America Patent
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Nov 5, 2002
Grant Date -
N/A
app pub date -
Nov 14, 2000
filing date -
Nov 14, 2000
priority date (Note) -
Expired
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Abstract
Heated and pressurized reactant material is caused to come into contact with oxidant in an initial contact zone (Z) within a contactor. vessel (11). This initial contact zone is removed from the walls of the vessel and the structure through which the reactant material is introduced into the vessel. Once in the contactor vessel (11), the temperature of the reactant material is elevated to critical temperature or near critical temperature in at least portions of the initial contact zone. Sulfates and similar ions liberated in the oxidation reaction form salts and precipitate from solution generally in. the initial contact. zone removed from the contactor vessel walls and then tend not to adhere to equipment at points downstream from the initial contact zone.
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