Ways of enhancement of efficiency of underground Coal Gasification -Integrated Gasification Combined Cycle Power Plants

Author

Duan Tian-hong ; Wang Zuo-tang ; Huang Wen-gang ; Lin, Xin ; Peng, Zhang

Author_Institution

State Key Lab. of Coal Resources & Safe Min., China Univ. of Min. & Technol., Xuzhou, China

Volume

2

fYear

2011

fDate

20-22 May 2011

Firstpage

1738

Lastpage

1741

Abstract

With the practical experience in the UCG power generation test in Huating Coal Group of China, nine ways of enhancement of efficiency of Underground Coal Gasification -Integrated Gasification Combined Cycle (UCG-IGCC) Power Plants are put forward which include selection of proper gasification agent flow rate, proper steam concentration in gasification agent, proper O₂ concentration in gasification agent, the appropriate oxygen making process, appropriate overall rate of air separation system, increase in temperature of gasifiers, control of the length of the reduction zone, increase in the inlet temperature of gas turbines, utilizing the sensible heat of the coal gas.

Keywords

coal gasification; flow separation; gas turbines; Huating coal group; air separation system; gas turbine; gasification agent flow rate; gasification agent oxygen concentration; gasification agent steam concentration; gasification combined cycle power plants; gasifier temperature; underground coal gasification; Educational institutions; Geology; Purification; CO/CO2 ratio; Oxygen Making Process; efficiency of UCG; efficiency of power generation; sensible heat of the coal gas;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930670

Filename

5930670