甲醇/电联产系统能耗特性

以一次能源消耗为统一基准推导了联产系统相对分产系统的相对收益、相对节能率和节能判据关系式。得到以化电比和联产系统效率表达的节能分区图，可以清楚地展示和比较国内外文献中多联产系统的节能效果。根据联产系统中合成气的不同利用途径，定义了联产气和非联产气，并据此建立了联产系统化电分摊的理论模型。以并联液相富CO一次通过多联产系统为例，对联产系统的节能原因进行了分析。结果表明：全系统的热量耦合是联产系统节能的主要原因。

Energy Consumption Performance of Methanol/Electricity Cogeneration Systems

The primary energy conservation of a methanol/IGCC cogeneration system was compared with separate production of methanol and power. Different mathematical models were developed to describe relative energy saving, relative energy saving ratio and energy saving criterion relation for the cogeneration system. Based on chemical product and power ratio and system efficiency, the energy saving zone diagram were developed, which can clearly show the energy performance of results from related literatures. Based on different energy utilization ways of the syngas, the definition of cogeneration syngas and non-cogeneration syngas was made, this leads to a rational allocation of primary energy to the coupled energy forms for cogeneration. The parallel polygeneration system based on once-through liquid-phase synthesis was used as case study, the result shows the heat integration of whole system is the main factor to the energy saving.