DETERMINATION OF ALKALI TRACES IN COAL COMBUSTION BY EXCIMER-LASER INDUCED FRAGMENTATION FLUORESCENCE

被引：11

作者：

HARTINGER, KT

MONKHOUSE, PB

WOLFRUM, J

机构：

[1] Univ Heidelberg, Heidelberg

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1993年 / 97卷 / 12期

关键词：

ALKALIS; COAL COMBUSTION; FLUORESCENCE;

D O I：

10.1002/bbpc.19930971239

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：

Gas phase sodium concentrations were measured in situ in the flue gas of a fluidised bed reactor using the excimer laser induced fragmentation fluorescence (ELIF) technique. Several different coals were investigated for a fixed set of reactor conditions at approximately 1 bar total pressure. Measured signals were converted to absolute concentrations using a calibration system that monitors alkali compounds under well-defined conditions. Concentrations ranging from the sub-ppb region to 25 ppb were obtained. Contrasting concentration histories were observed for the brown and hard coals studied

引用

页码：1731 / 1734

页数：4

共 23 条

[1] APPROACH FOR A QUANTITATIVE ON-THE-FLY FLUORESCENCE DIAGNOSTIC IN COMBUSTION SYSTEMS [J].