Experimental research on the effect of CO on alkali metals' condensation characteristics

被引：0

作者：

Qiu, Peng-Hua ^{[1
]}

Wang, Wen-Jie ^{[1
]}

Jiao, Guang-Liang ^{[1
]}

Wu, Shao-Hua ^{[1
]}

Qin, Yu-Kun ^{[1
]}

机构：

[1] School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2010年 / 30卷 / 11期

关键词：

Gas turbines - Atmospheric temperature - High temperature corrosion - Coal deposits - Synthesis gas - Coal - Condensation - Coal gasification;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Integrated gasification combined cycle (IGCC) is one of the trends of clean coal power generation technology. However, that alkali metal vapors contained in the syngas which are generated from coal gasifier easily deposit on the surfaces of convectional syngas cooler (CSC) will not only lead to slagging, but also will cause high-temperature corrosion of gas turbine blades. An experimental facility was built to study the condensation characteristics of high temperature alkali metals contained in the syngas of the IGCC, and the effects of syngas and alkali metal components on the concretion process were obtained. The results show that the concreted temperature of alkali metal is between 620~720°C in the reductive atmosphere; the steam in the syngas has no effect on this concreted temperature; the higher the concentration of CO in the syngas, the lower the concreted temperature; if the concentration of CO keeps invariable, and the ratio of [Na+]/[K+] is lower, the concreted temperature is lower when both Cl- and SO42- exists than the case only Cl- exists. © 2010 Chin. Soc. for Elec. Eng.

引用

页码：56 / 61