SUPERCRITICAL WATER OXIDATION TECHNOLOGY - PROCESS-DEVELOPMENT AND FUNDAMENTAL RESEARCH
SUPERCRITICAL WATER OXIDATION TECHNOLOGY - PROCESS-DEVELOPMENT AND FUNDAMENTAL RESEARCH
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超临界水氧化技术-工艺开发和基础研究
DOI：
10.1021/bk-1993-0518.ch003
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
H. Barner
中科院分区：
文献类型：
--
作者：
J. Tester;H. Holgate;F. J. Armellini;P. Webley;W. Killilea;G. T. Hong;H. Barner
含盐水媒中的危险有机废物，包括氯化碳氢化合物，可在纯水临界点（374°C， 221巴）以上进行处理而有效氧化。在550°C以上的温度下，较短的反应器停留时间（约1分钟或更短）可实现较高的破坏效率。在这些条件下，不产生nox化合物。有机物和氧的高溶解度以及盐在超临界水中的低溶解度使其成为氧化和盐分离的有吸引力的介质。本文综述了超临界水氧化（SCWO）商业化开发所需的关键技术组成和操作。这些包括流体处理和压缩、热交换和热回收、反应器和盐分离器的设计和材料考虑。此外，总结了氧化反应动力学和机理以及固体盐成核和沉积等领域的基础研究活动，并介绍了其对SCWO工艺发展的影响。
Hazardous organic wastes, including chlorinated hydrocarbons, in aqueous media containing salts can be effectively oxidized by treatment above the critical point of pure water (374°C, 221 bar). High destruction efficiencies may be achieved at low reactor residence times (approximately 1 minute or less) for temperatures above 550°C. Under these conditions, no NOxcompounds are produced. The high solubility of organics and oxygen and the low solubility of salts in supercritical water make it an attractive medium for both oxidation and salt separation. This paper reviews critical technology components and operations required for commercial-scale development of supercritical water oxidation (SCWO). These include fluid handling and compression, heat exchange and recuperative heat recovery, reactor and salt separator design and materials considerations. In addition, a summary of fundamental research activities in the areas of oxidation reaction kinetics and mechanisms and solid salt nucleation and deposition is presented in the context of its impact on SCWO process development.