Method and associated apparatus for determining carbon content i

Details Method and associated apparatus for determining carbon content i Method and associated apparatus for determining carbon content i

1992-02-11

1992-12-22

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

324639, 73 2801, G01N 2200

Patent

active

051736624

ABSTRACT:
A method for determining carbon content in fly ash includes providing a source of fly ash and a microwave interrogation chamber. A quantity of fly ash is introduced into the interrogation chamber and exposed to microwave energy. The amount of carbon in the fly ash is determined by measuring the amount of microwave energy exposed to the fly ash, the amount of energy transmitted through the fly ash, and the amount reflected therefrom in order to determine the amount of energy absorbed. The concentration of fly ash is preferably determined by determining the weight of the fly ash and determining the percentage of carbon content in the fly ash. The method is particularly useful in respect of monitoring carbon content in fly ash of boiler exhaust gases. The system may also be employed to determine the fly ash glass content of fly ash. An associated apparatus is also disclosed.

REFERENCES:
patent: 4580441 (1986-04-01), Sakurai et al.
patent: 4663507 (1987-05-01), Trerice
patent: 4705409 (1987-11-01), Trerice
patent: 4941083 (1987-02-01), Ohno et al.
Trerice et al., A New Method For Improving the Salability of Fly Ash., Mar. 1988, pp. 1-16.

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