Abstract

Supercritical water oxidation (SCWO) is a promising technology for treating degradation-resistant organic waste. In this paper, the basic principles and technical advantages of supercritical water oxidation technology are introduced, and the research on and technical characteristics of commercial enterprises are summarized. The typical SCWO process is composed of pretreatment, pressurization, preheating, reaction, cooling, depressurization, gas-liquid-solid separation and oxidant modules. Various SCWO process schemes should be developed to accommodate site conditions, avoid corrosion, prevent salt deposition, reduce building investment and minimize operational expenses. The system could be classified in the form of heat recovery, feed pretreatment, salt separation and reactor. The application range of various process technologies was clarified, and the current research on SCWO processes was summarized.

摘要

超临界水氧化（SCWO）是一种很有前途的处理抗降解有机废物的技术。本文介绍了超临界水氧化技术的基本原理和技术优势，总结了商业企业的研究和技术特点。典型的SCWO工艺由预处理、加压、预热、反应、冷却、减压、气液固分离和氧化剂模块组成。应开发各种 SCWO 工艺方案以适应现场条件、避免腐蚀、防止盐沉积、减少建筑投资并最大限度地减少运营费用。该系统可按热回收、进料预处理、盐分离和反应器的形式分类。明确了各种工艺技术的应用范围，