Measuring the Carbon Content in Fly Ash

User Benefits

- The TOC solid sample measurement system can easily quantitate the carbon contained in fly ash by measuring the total carbon (TC) and inorganic carbon (IC) content. - By using oxygen as the carrier gas to promote the combustive oxidation reaction, unburned carbons in the samples can be efficiently combusted to evaluate the total carbon content.

Introduction

In coal-fired power plants, finely ground coal powder is burned in a boiler, but this combustion process generates large quantities of coal ash. Most of the coal ash consists of fine spherical particles called fly ash, which are collected in an electric dust collector. Because the principal components of fly ash are silica and aluminum, fly ash is commonly mixed with cement and other products to increase durability and watertightness. Since the spherical particles increase fluidity during the concrete construction process, fly ash is often used as an admixture for concrete. Therefore, a variety of parameters are measured for quality control purposes. One of which is the quantity of unburned carbon. This article describes an example of using the TOC solid sample measurement system to measure the quantity of unburned carbon contained in fly ash.

November 21, 2023 GMT