以煤气化为核心的多联产能源系统——资源/能源/环境整体优化与可持续发展

Poly-generation Energy System Based on Coal Gasification——Integrated optimization and sustainable development of resources,energy and environment

环境污染已成为制约我国经济可持续发展的瓶颈 ,按照现有技术 ,我国的能源系统是不可持续的。在一次能源以煤为主而且长期不可能大幅度变化的国情下 ,如何构建资源、能源、环境整体化的可持续发展能源系统 ,是从现在就要开始重点研究并逐步实施的战略性问题。文章在介绍国外可持续能源系统研究的最新进展基础上 ,提出以煤气化为核心的多联产能源系统是解决我国未来可持续发展的方向 ,详细论述了可能实施的多联产耦合实例 ,效益分析以及需要解决的关键技术和科学问题 ;对我国实施多联产战略的起步、分层次步骤、政府支持以及相关政策提出了建议。

Environmental pollution has become the bottlenck of the sustainable economic development of China.The existing energy system is not suita for sustained need. China has to use coal as the main primary energy for quite a long term.Under such special conditions,it is an urgent strategic problem to be studied and carried out step by step from now on to plan and construct the integrated sustainable energy system with optimal benefits in resource, energy utilization and environmental emission.By introducing the international study and new development in sustainable energy systems,this paper puts forward that poly generation strategy based on coal gasification is the trend for future development of Chinas energy industry.Some possible examples for poly generation and coupling of processes are introduced and their benefits are analyzed.The potential key technical and scientific problems in poly generation are also pointed out.Finally,the starting procedure,government role and policies for implementing poly generation strategy in China are proposed.