摘要：Based on the composition characteristic of the syngas produced through supercritical water gasification of coal, a novel CO2 near-zero-emission power system with integrated supercritical water gasification of coal with solid oxide fuel cell (SOFC) is proposed. Solar energy is used to heat the gasification chamber water supply and provide coal gasification reaction heat. The gasified syngas enters the SOFC to generate electricity. The exhaust gas from the anode of the SOFC is combusted with pure oxygen in the combustor of the gas turbine, and CO2/H2O mixture is produced. CO2 can be easily separated and captured. The influences of key parameters such as coal-water-slurry concentration in the gasifier, working temperature of the SOFC, and reforming temperature on the system performances are studied. The distribution pattern, transfer and transformation mechanisms of the energy and exergy in the system are revealed. As the previously mentioned key parameters are 11.3%(mass), 1000鈩?, and 750鈩?, respectively, the power efficiency can reach 47.59%. This research achieves near-zero CO2 emissions through the complementary cascade utilization of coal chemical energy and solar energy, combined with electrochemical reactions in SOFC and oxygen-rich combustion technology in the combustion chamber, which is of great significance to achieving the dual-carbon goal. 漏 2023 Chemical Industry Press. All rights reserved.

ISSN号：0438-1157

卷、期、页：v 74,n 11,p4688-4701

发表日期：2023-11-01

收录情况：EI（工程索引）

发表期刊名称：Huagong Xuebao/CIESC Journal

通讯作者：魏俊杰

第一作者：陈哲文,张玉明,张炜,李家州

论文类型：期刊论文

论文概要：陈哲文,魏俊杰,张玉明,张炜,李家州，Thermodynamic analysis of CO2 near-zero-emission power system with integrated solar energy, supercritical water gasification of coal and SOFC，Huagong Xuebao/CIESC Journal，2023，v 74,n 11,p4688-4701

论文题目：Thermodynamic analysis of CO2 near-zero-emission power system with integrated solar energy, supercritical water gasification of coal and SOFC