On-line photometer for caustic monitoring

被引：0

作者：

Cardis, TM ^{[1
]}

Brewer, GD ^{[1
]}

机构：

[1] ABB Automat, Lewisburg, WV 24901 USA

来源：

PROCEEDINGS OF THE 46TH ANNUAL ISA ANALYSIS DIVISION SYMPOSIUM, VOL 34 | 2001年 / 410卷

关键词：

caustic analysis; acid gas scrubber; near infrared photometer;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An important measurement that ensures the safe operation of acid gas scrubbers is the analysis of caustic in aqueous streams. Hydrochloric acid (HCl) and chlorine (Cl-2) are examples of acidic gases that are removed in acid gas scrubbers. Aqueous solutions of sodium hydroxide are normally used in acid gas scrubbers. The use of an on-line Photometer to measure caustic concentration will be discussed. The fast response time of the Photometer allows for quick remedial action when upsets occur in the scrubber. A Photometer with multiple wavelength filters has the capability to compensate for interfering salts that can be present in the scrubber stream. Reliable monitoring of the caustic concentration provides protection from environmental problems by preventing the release of acid gases.

引用

页码：151 / 159

页数：9