摘要
20世纪末期以来,面对我国一次能源以煤为主、能源需求日益增长以及世界环境恶化的现实,构建资源、能源、环境整体化的可持续发展能源系统是我国能源战略方向。煤分级利用多联产系统是实现整体最优、跨越行业的资源、能源、环境一体化系统。本文介绍了煤多联产技术的主要技术类型,包括煤热解气化为核心的多联产技术、煤部分气化为核心的多联产技术及煤完全气化为核心的多联产技术。重点介绍了煤热解气化为核心的热电气焦油多联产技术,详细阐述了该多联产装置的工艺流程和运行特性。最后,基于煤分级利用联合循环发电系统,从节能减排等方面对多联产技术的发展前景进行了展望,指出用煤分级利用联合循环发电系统来改造老电厂,可以提高现有电厂运行经济性及节能特性。
Since the last decade of the 20th century,due to the coal-dominated energy structure,increasing energy demand and the environment problems in China,building resources,energy,environment integrated and sustainable development energy system is the direction of China＇s energy strategy.Coal staged conversion poly-generation system,integrating resources,energy,and environment realizes overall optimality.The main three poly-generation technologies,including coal pyrolysis and combustion poly-generation technology,coal partial gasification poly-generation technology and coal gasification poly-generation technology,are presented in this paper.A steam,electricity,coal gas and tar poly-generation technology is introduced,including detailed process of the poly-generation system and operating characteristics.Finally,based on the combined cycle poly-generation system,the energy-conservation and emission-reduction of the system are evaluated.The result shows that the power plant using coal staged conversion combined cycle poly-generation,is much more economical and energy-conserving than the traditional power plant.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2011年第1期88-94,共7页
Chemical Industry and Engineering Progress
基金
国家高技术研究发展计划(国家863计划
2007AA05Z334)
浙江省自然科学基金(R1080101)项目
关键词
多联产
煤气化
煤热解
节能减排
poly-generation
coal gasification
coal pyrolysis
energy-conservation and emission-reduction
