Cycle analysis of low and high H2 utilization SOFC/gas turbine combined cycle for CO2 recovery

被引：37

作者：

Araki, Takuto

Taniuchi, Takuya

Sunakawa, Daisuke

Nagahama, Mitsuyuki

Onda, Kazuo

Kato, Toru

机构：

[1] Toyohashi Univ Technol, Dept Microelect & Elect Engn, Toyohashi, Aichi 4418580, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan

来源：

JOURNAL OF POWER SOURCES | 2007年 / 171卷 / 02期

关键词：

multi-staged SOFC; CO(2) recovery; gas turbine combined power generation; high fuel utilization; amine process;

D O I：

10.1016/j.jpowsour.2007.06.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A major factor in global warming is CO(2) emission from thermal power plants, which burn fossil fuels. One technology proposed to prevent global warming is CO(2) recovery from combustion flue gas and the sequestration Of CO(2) underground or near the ocean bed. Solid oxide fuel cell (SOFC) can produce highly concentrated CO(2), because the reformed fuel gas reacts with oxygen electrochemically without being mixed with air in the SOFC. We therefore propose to operate multi-staged SOFCs with high utilization of reformed fuel to obtain highly concentrated CO(2). In this study, we estimated the performance of multi-staged SOFCs considering H(2) diffusion and the combined cycle efficiency of a multi-staged SOFC/gas turbine/CO(2) recovery power plant. The power generation efficiency of our CO(2) recovery combined cycle is 68.5%, whereas the efficiency of a conventional SOFC/GT cycle with the CO(2) recovery amine process is 57.8%. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：464 / 470

页数：7

共 10 条

[1] REVERSIBILITY AND POLARIZATION BEHAVIOR OF HIGH-TEMPERATURE SOLID OXIDE ELECTROCHEMICAL-CELLS [J].