超临界水氧化技术能量回收工艺  

Energy Recovery Process of Supercritical Water Oxidation Technology

作　　者：于国栋 王云飞 丁佳杰 李旭航 李瑶 胡德栋[1] YU Guodong;WANG Yunfei;DING Jiajie;LI Xvhang;LI Yao;HU Dedong(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao Shandong 266061,)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《辽宁化工》2024年第3期465-470,共6页Liaoning Chemical Industry

基　　金：青岛科技大学研究生自主科研创新项目(项目编号:S2000KY013)。

摘　　要：超临界水氧化技术具有高温、高压特点,高温产物的能量回收是实现超临界水氧化技术工业化的关键。设计2种超临界水能量回收工艺,以火用效率和能量效率为目标函数,研究预热温度400~600℃、体系压力21~29 MPa、透平压力0.1~23 MPa和乏汽温度160~200℃条件下能量回收情况。结果表明:其热能回收优先于压力能回收的工艺,预热温度600℃、反应压力23 MPa、透平出口压力0.1 MPa和换热器热流股出口温度为211.85℃时具有更高火用效率和能量效率,分别为87.7%和76.7%。优先回收热能有利于超临界水氧化技术发展。Supercritical water oxidation technology has the characteristics of high temperature and high pressure.The optimization of energy recovery process is the key to realize the industrialization of supercritical water oxidation technology.In this paper,two kinds of supercritical water energy recovery processes were designed,exergy efficiency and energy efficiency were used as the objective function.The energy recovery under the conditions of preheating temperature 400~600℃,system pressure 21~29 MPa,turbine pressure 0.1~23 MPa and exhaust steam temperature 160~200℃was studied.The results showed that heat energy recovery was preferred to pressure energy recovery.When the preheating temperature was 600℃,the reaction pressure was 23 MPa,the turbine outlet pressure was 0.10 MPa and the heat exchanger outlet temperature was 211.85℃,the exergy efficiency and energy efficiency were 87.7%and 76.7%,respectively.Preferential recovery of heat energy was beneficial to the development of supercritical water oxidation technology.

关 键 词：超临界水氧化 能量回收工艺 压力能 热能 

分 类 号：TQ085[化学工程]