化工进展2016,Vol.35Issue(z2):1-10,10.DOI:10.16085/j.issn.1000-6613.2016.s2.001
高温燃烧过程中Cr的氧化机理及控制方法
Mechanism of chromium oxidation during combustion and control methods
摘要
Abstract
Chromium is a hazardous element widely existing in fossil fuels、municipal solid wastes and industrial solid wastes.Most fossil fuels and significant portion of solid wastes are subj ected to combustion for energy recovery or safe management.Therefore,combustion processes emit huge amounts of chromium into environment.Most importantly, high temperature and oxic conditions during thermal treatment may induce oxidation of chromium from Cr (Ⅲ), which is stable and low toxic,to Cr(Ⅵ)which is mobile and highly toxic.Hence,more and more researches focus on behavior of chromium in thermal process and speciation of chromium in products.This paper includes chromium speciation in fuels, mechanism of chromium oxidation in combustion, methods for inhibiting chromium oxidation and immobilization of chromium in by-products aimed to supply theoretical basis for reducing the threat of chromium emitted in combustion process.关键词
热处置/铬形态/铬氧化/固化Key words
thermal treatment/speciation of Cr/oxidiation of Cr/immobilization分类
资源环境引用本文复制引用
蒋旭光,董浩,吕国均,池涌,严建华..高温燃烧过程中Cr的氧化机理及控制方法[J].化工进展,2016,35(z2):1-10,10.基金项目
国家重点基础研究发展计划(2011CB201500)、国家高技术研究发展计划(2012AA063505)、国家科技支撑计划(2007BAC27B043)及环保公益性行业科研专项项目(201209023-4)。 (2011CB201500)