CAJ | 학술논문

针对超临界水氧化反应器因应力腐蚀和盐析产生的设备损害问题，研发了一种新型夹套式釜式反应器。反应器主要由内筒、外筒和内筒固定板组成，并在内筒装填了吸附材料。反应器的内筒材质选用316L不锈钢，名义厚度为4mm ，许用外压最大为2．3M Pa；外筒材料选用304不锈钢，名义厚度为24mm ，在温度575℃下的许用应力为79M Pa。反应器内装填的吸附材料为活性硅，可以对反应过程中产生的无机盐进行吸附脱盐。该反应器可以避免应力腐蚀的产生，同时减少了无机盐在反应器内壁的析出和附着，避免了无机盐沉积引起的管道堵塞，从而保证设备的长期安全运行，延长反应器的使用寿命。
침대초림계수양화반응기인응력부식화염석산생적설비손해문제，연발료일충신형협투식부식반응기。반응기주요유내통、외통화내통고정판조성，병재내통장전료흡부재료。반응기적내통재질선용316L불수강，명의후도위4mm ，허용외압최대위2．3M Pa；외통재료선용304불수강，명의후도위24mm ，재온도575℃하적허용응력위79M Pa。반응기내장전적흡부재료위활성규，가이대반응과정중산생적무궤염진행흡부탈염。해반응기가이피면응력부식적산생，동시감소료무궤염재반응기내벽적석출화부착，피면료무궤염침적인기적관도도새，종이보증설비적장기안전운행，연장반응기적사용수명。
The new jacketed tank reactor was designed to protect against the damage of supercriti‐cal water oxidization equipment due to the stress corrosion and salting out .The jacketed tank reactor consisted of the inner cylinder ,the outer cylinder and the inner cylinder fixture plate .Meanwhile ,the adsorbed material was filled in the inner cylinder .The inner cylinder was produced with 316L stainless steel ,with nominal thickness of 4mm and allowable maximum pressure of 2 .3MPa .The outer cylinder was produced with stainless steel ,with nominal thickness of 24mm and allowable maximum pressure of 79M Pa at the temperature of 575℃ .T he absorbed material filled in the inner cylinder is calcium sili‐cate ,which could desalt the inorganic salt generated in the reaction process .The newly reactor could avoid the generation of stress corrosion and decrease the salting out and adhesion of organic salt ,thus , avoiding the blockage caused by inorganic salt salt deposition .The new design could ensure the safe operation of supercritical water oxidization equipment for a long period of time and extend the service life of the reactor .