摘要
综述了煤中有毒、有害元素经燃烧之后的存在形式与去向、元素在燃烧过程中的热解释放行为及其转化机理；强调煤中以无机组分为主要存在形式的许多有毒、有害元素在燃烧过程中会释放出来，然后再分异扩散到各种燃烧产物之中，对环境与人体健康造成危害；指出今后研究不仅限于煤中有毒、有害元素的形成机理，更应侧重于对燃烧产物中有毒、有害元素的分异与去除方法作进一步的研究与试验，力求使燃煤对环境与人体健康产生的危害降低到最低程度。
This paper briefly introduces the occurrence,fate and transformation mechanisms of toxic trace elements in coal during and after combustion.Many trace elements in coal are toxic.Most of them are bound with coal's minerals,few of them with organic matter components.These trace elements are released during the combustion process and then pose environmental and human health risk.It is suggested that further studies be dealt with not only their occurrence and forming conditions but also their transformation mechanisms and treatment of the combustion disposal,so that the risk of combustion of coals for the environment and human health could be reduced as far as possible.
出处
《地质科技情报》
CAS
CSCD
北大核心
1999年第1期71-74,共4页
Geological Science and Technology Information
基金
国家自然科学基金
关键词
煤
有害微量元素
燃煤过程
转化机理
环境危害
hazard trace elements in coal,coal combustion process,release and transformation mechanisms,coal combustion disposal,environment risk,future trend
