与SOFC整合的CO2准零排放IGCC新系统研究

本文研究与SOFC整合的CO2准零排放IGCC系统。基于总能系统思想和系统集成方法,本文提出了O2／CO2循环与SOFC-CC结合的双循环CO2准零排放系统,对SOFC-CC循环系统特性及主要参数进行了优化分析,对新系统性能进行了分析研究,还与其它准零排放IGCC系统进行了比较。研究结果表明:新系统在回收CO2后系统效率有大幅度提高,与基准系统相比系统效率高7个百分点。本文研究成果为CO2准零排放IGCC系统研究提供了新的思路和方案。

STUDY ON NOVEL QUASI-ZERO CO2 EMISSION IGCC SYSTEM INTEGRATED WITH SOFC SYSTEM

This paper studies a novel quasi-zero CO2 emission IGCC system integrated with Solid Oxide Fuel Cell (SOFC) system. On the base of system integration idea of total energy system, a novel duel-cycle IGCC system integrated with fuel cell combined cycle system and O2/CO2 cycle system has been proposed. The paper analyzes the characteristic of SOFC and optimizes the main parameters of SOFC combined cycle. The system performance of new system has been investigated. The paper also compares the thermal performance of different IGCC systems with CO2 recovery. The promising results show the new system has a higher thermal efficiency after separating and recovering CO2. Compared with the base IGCC system without CO2 recovery, after recovering CO2, the novel IGCC system efficiency does not decrease, but increases by 7 percentage points. Above research achievements will provide the new idea and method for further study on IGCC system with low CO2 emission.