OXIDATION REACTION DEVICE

摘要

PROBLEM TO BE SOLVED: To recover a carbon dioxide as an industrially useful high-purity carbon dioxide without releasing the carbon dioxide into the atmosphere by providing a mechanism for separating and recovering the carbon dioxide at the back stage of a reaction part, in an oxidation reaction device using a high temperature and high pressure water. SOLUTION: When a residual slurry of a coffee beam extract as a material to be oxidized is treated through an oxidation reaction process, a pressure to be applied to the slurry as a material to be oxidized is boosted using a pressure boosting pump 103, and oxygen generated by an oxygen manufacturing device 102 is forced into the slurry to be mixed and further, it is preheated by a preheater 106. After that, the slurry is guided to a chemical reaction part 1 to get a chemical reaction going on. Next, the oxidized treated liquid is cooled down to a critical temperature or lower level of a carbon dioxide with the help of a cooler 107 and then the impurity component of gas such as oxygen or nitrogen is removed from the gas side of a first gas/ liquid separating tank 109 to extract the carbon dioxide and water from the liquid side. The extract liquid is subjected to a pressure reduction process by a pressure reducing valve 110 to vaporize the carbon dioxide, which is separated from the liquid in a second gas/liquid separation tank 111 and recovered.