Measurement of CO Concentration in Cement Manufacturing Plant by CGT-7100: Study of Specifications for Introduction of CE

User Benefits

�- It is possible to collect data with high reliability and convertibility, as the CGT-7100 gas analyzer uses the same measurement principle as CEMS. �- Simple measurement is possible at any location because the CGT-7100 is a transportable type with a built-in sampling pump and sample preparation function. - Collected data can be saved to a USB flash drive, enabling easy editing on a personal computer and sharing with other departments.

Introduction

Cement is manufactured by calcining raw materials at a high temperature of approximately 1450 ̊C using a rotating-type furnace called a rotary kiln. The large amount of thermal energy required by the rotary kiln is supplied by coal and, in addition, incineration of combustible waste in a combined waste treatment/heat supply process. At cement manufacturing plants, the concentrations of several types of gas are monitored at several points from the viewpoints of operation control and prevention of air pollution. Among those gases, the concentrations of CO and O2 are indexes that directly reflect the condition of fuel combustion, and thus are essential monitoring targets for close operation control aiming at high efficiency and low environmental impact. In particular, since CO is an index that reacts quickly to incomplete combustion, fast and accurate measurement is required. Assuming installation of a CEMS for this purpose, this article introduces an example of measurement of the CO concentration in a cement plant using the CGT-7100 transportable gas analyzer in order to study the specification of the measurement range before installation of the CEMS.

July 16, 2021 GMT