| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for smoothly starting and operating a supercritical water reaction device at the time of treating plural liquids to be treated having different calorific value per unit volume from each other with supercritical water. SOLUTION: At the time of starting up the supercritical water reaction device, a compressor 28 is driven to feed air to a reactor 12 to increase the pressure of the reactor to a prescribed pressure. Next, the supercritical water flows in while feeding air and the temp. of the reactor is increased to 390 deg.C. The liquid A to be treated having low oxidation calorific value per unit volume is introduced into the reactor with a pump 24A for liquid to be treated driven while passing the super-critical water to start the oxidation reaction. Next, the liquid B to be treated having higher oxidation calorific value per unit volume than the liquid A to be treated is supplied to the reactor in addition to the liquid A to be treated or by being switched from the liquid A to be treated to continue the supercritical water reaction and when the temp. of the reactor reaches 500-550 deg.C, the feed of the supercritical water is stopped.</p> |
