Supercritical power plant 600 MW with cryogenic oxygen plant and CCS installation

被引：7

作者：

Kotowicz, Janusz ^{[1
]}

Dryjanska, Aleksandra ^{[1
]}

机构：

[1] Silesian Tech Univ, Inst Power Engn & Turbomachinery, Konarskiego 18, PL-44100 Gliwice, Poland

来源：

ARCHIVES OF THERMODYNAMICS | 2013年 / 34卷 / 03期

关键词：

CFB oxy boiler; Oxy-combustion system; Supercritical oxy power plant; Electricity generation efficiency; Cryogenic air separation;

D O I：

10.2478/aoter-2013-0019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This article describes a thermodynamic analysis of an oxy type power plant. The analyzed power plant consists of: 1) steam turbine for supercritical steam parameters of 600 degrees C/29 MPa with a capacity of 600 MW; 2) circulating fluidized bed boiler, in which brown coal with high moisture content (42.5%) is burned in the atmosphere enriched in oxygen; 3) air separation unit (ASU); 4) CO2 capture installation, where flue gases obtained in the combustion process are compressed to the pressure of 150 MPa. The circulated fluidized bed (CFB) boiler is integrated with a fuel dryer and a cryogenic air separation unit. Waste nitrogen from ASU is heated in the boiler, and then is used as a coal drying medium. In this study, the thermal efficiency of the boiler, steam cycle thermal efficiency and power demand were determined. These quantities made possible to determine the net efficiency of the test power plant.

引用

页码：123 / 136

页数：14