煤基和天然气基DME联产比较  

THE COMPARISON OF COAL-BASED AND NATURAL GAS-BASED DME/POWER POLYGENERATION SYSTEM

作　　者：陈斌[1] 金红光[1] 

机构地区：[1]中国科学院工程热物理研究所

出　　处：《工程热物理学报》2007年第4期541-544,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.90210032);国家重点基础研究发展规划项目资助(No.G1999022302)

摘　　要：本文针对煤基和天然气基DME分产及多联产系统进行研究．通过分析发现煤基DME分产能耗为55．5 GJ/t,天然气基DME分产能耗为48．4 GJ/t。煤基IGCC-DME联产方式相对节能率达到15．0％,高于天然气基CC-DME联产方式的10．2％。通过进一步的分析发现,不论是煤基还是天然气基,联产方式都同时遵循化学(火用)和物理(火用)的综合梯级利用原理。coal-based and natural gas-based DME individual generation system and polygeneration system were studied in this paper. The energy consumption of coal-base DME is 55.5 G J/t, and of natural gas-based is 48.4 GJ/t. Energy saving ratio of coal-based polygeneration system is 15.0%, while of natural gas-based is 10.2%. The further analysis shown that both coal-based polygeneration system and natural gas-based polygeneration system are followed by cascade utilization rule in thermal energy and in chemical energy.

关 键 词：煤基 天然气基 多联产 梯级利用 

分 类 号：TK123[动力工程及工程热物理—工程热物理]