REACTION TREATMENT APPARATUS BY SUPERCRITICAL WATER

摘要

PROBLEM TO BE SOLVED: To enhance the durability of a reaction container by reducing the corrosion of the container and the thermal load to the container and to separate combustion gas and condensed water not only to efficiently store condensed water in the bottom part of the container but also to facilitate the treatment of off-gas. SOLUTION: This reaction treatment apparatus 10 by supercritical water is equipped with a vertical reaction container 11 having a supercritical water region 43 in which supercritical water is stagnated and constituted so that a liquid to be treated containing organic matter is introduced into the supercritical water region from a supply port 13 to perfectly burn the organic matter in the liquid to be treated to oxidize and decompose the same. A first discharge port 14 of combustion gas is provided to the top part of the container and a second discharge port 16 of condensed water is provided to the bottom of the container. A first cooler 51, which cools a reaction product in a supercritical water state to produce condensed water, positioned above the supercritical water region and a cylindrical heat shielding member 47 surrounding the supercritical water region are provided in the container and an umbrella 52 is provided between the first cooler and the heat shielding member 47. The umbrella allows condensed water dripped from the first cooler to flow down through the space between the heat shielding member and the inner wall 11a of the container.