Performance evaluation of integrated gasification solid oxide fuel cell/gas turbine systems including carbon dioxide capture

被引：90

作者：

Park, Sung Ku ^{[2
]}

Ahn, Ji-Ho ^{[2
]}

Kim, Tong Seop ^{[1
]}

机构：

[1] Inha Univ, Dept Mech Engn, Inchon 402751, South Korea

[2] Inha Univ, Grad Sch, Inchon 402751, South Korea

来源：

APPLIED ENERGY | 2011年 / 88卷 / 09期

关键词：

Solid oxide fuel cell; Gas turbine; Gasification; Pre-combustion; Oxy-combustion; CO2; capture; CO2; CAPTURE; DESIGN;

D O I：

10.1016/j.apenergy.2011.03.031

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, system layouts for integrated gasification solid oxide fuel cell/gas turbine (IG-SOFC/GT) systems were proposed and their performance was comparatively evaluated. A baseline IGCC was simulated, and the calculation models were validated. Based on the IGCC system, two IG-SOFC/GT system layouts with different SOFC thermal management methods were established, and their performance was analyzed. The IG-SOFC/GT systems were found to produce much higher power and better efficiency than the IGCC. With regard to SOFC thermal management, the exit gas recirculation scheme showed better performance than the cathode heat exchange scheme. The impact of CO2 capture was investigated in both the IGCC and IG-SOFC/GT systems, and the penalties in power output and efficiency due to pre-combustion CO2 capture were found to be milder in the IG-SOFC/GT systems than in the IGCC. An IG-SOFC/GT system adopting oxy-combustion-based CO2 capture was proposed, and its thermal efficiency was predicted to be sensibly higher than the system with pre-combustion CO2 capture. Its net power output was predicted to be less than that of the system with pre-combustion technology, but was still much larger than that of the IGCC with pre-combustion CO2 capture. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2976 / 2987

页数：12

共 43 条

[1]

Agnew G. D, 2005, GT200569122 ASME

[2] Natural gas combined cycle power plant modified into an O2/CO2 cycle for CO2 capture [J].