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                  您現在的位置:首頁 >技術知識 >> 超臨界水氧化技術工藝流程
                  [來源:www.oyoloo.com] [作者:淤泥固化] [日期:17-02-13]
                  超臨界水氧化技術工藝流程為在超臨界水氧化系統內,污泥首先進行預處理,配置成泥漿并將濃度調整至設計值,然后經過高效預熱系統與來自高溫反應后物料進行換熱,達到反應溫度后進入超臨界反應裝置。在超臨界水狀態下物料與氧氣充分接觸,物料中有機質與氧氣在短時間內完成氧化反應,反應后產物作為熱源給冷物料換熱,多余熱量可通過蒸汽回收,換熱后的產物再經過分離系統實現氣-液-固三相分離。 Supercritical water oxidation process in supercritical water oxidation system, firstly pretreated sludge, and configured to mud and adjust the concentration to the design value, and then after preheating system and from the high temperature reaction material for heat exchange, after reaching reaction temperature in supercritical reaction device. Good contact with material in the condition of supercritical water and oxygen, material of organic matter in complete oxidation reaction with oxygen in a short period of time, after the reaction product material heat as a heat source to the cold, excess heat through steam recycling, heat transfer products again after a separation system to realize the gas - liquid - solid three phase separation. 超臨界水氧化技術原理為水的臨界點是溫度374.3℃、壓力22.05MPa,如果將水的溫度、壓力升高到臨界點以上,即為超臨界水(SCW),其密度、粘度、電導率、介電常數等基本性能均與普通水有很大差異,表現出類似于非極性有機化合物的性質。因此,超臨界水能與非極性物質(如烴類)和其他有機物完全互溶,同時超臨界水還可以和空氣、氧氣、氮氣和二氧化碳等氣體完全互溶,而無機物特別是鹽類在超臨界水中的電離常數和溶解度則很低。目前新奧環保已在廊坊的污泥處理處置企業自建示范項目中將該技術進行了應用。 Principle of supercritical water oxidation technology is the critical point of water temperature is 374.3 ℃, pressure is 22.05 MPa, if the water temperature and pressure to the point above, namely for supercritical water (SCW), the density, viscosity, the basic performance such as conductivity, dielectric constant and there is a big difference between ordinary water, show the similar to the nature of the nonpolar organic compounds. Therefore, supercritical water and nonpolar substances, such as hydrocarbons and other organic matter complete miscibility, supercritical water at the same time can also and air, oxygen, nitrogen and carbon dioxide gas, such as complete miscibility, and inorganic substances, especially in the ionization constants of salts in supercritical water and the solubility is very low. At present, the new Austrian environmental protection has in langfang sludge disposal enterprise self-built will the technology application demonstration projects.

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