超临界水热燃烧：基本原理、特性规律及其在能源环境领域中应用与开发
DOI:
https://doi.org/10.18686/cncest.v1i2.93关键词:
超临界水热燃烧；燃烧特性；数值模拟；废物处理；煤炭地下气化；稠油热采摘要
超临界水热燃烧技术是一种“水火相容”、无NOx与SOx生成的新型清洁均相燃烧技术，有望推动有机废物高效处理、传统化石能源清洁利用、稠油高效热采等领域技术的变革性发展。本文在归纳近年来超临界水热燃烧技术基本特点的基础上，重点从实验研究、数值计算两个角度总结分析了典型燃料的超临界水热燃烧特性与规律，以及在能源环境领域变革性工程应用与开发的最新进展。指出降低着火温度与熄火温度是推进超临界水热燃烧技术应用的关键，考虑真实流体效应与湍流-反应交互作用才能正确反映燃烧过程。此外，超临界水热燃烧作为体系热量与反应介质供给来源，可实现高浓有机废物高效去除、煤炭清洁燃烧与原位制氢以及生成多元热流体强化稠油热采。当前，超临界水热燃烧强迫点火技术、反应器设计准则、关键设备防腐仍是未来研究的重点，对推进超临界水热燃烧技术工程化成熟具有重要意义。
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