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

1989-12-08

1992-04-28

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

324639, 73 2801, G01N 2200

Patent

active

051092018

ABSTRACT:
A method and apparatus for determining carbon content in fly ash 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.

REFERENCES:
patent: 4484133 (1984-11-01), Riggin
patent: 4580441 (1986-04-01), Sakurai et al.
patent: 4641083 (1987-02-01), Ohno et al.
patent: 4663507 (1987-05-01), Trerice
patent: 4705409 (1987-11-01), Trerice
Paper by Trerice & DiGioia entitled "A New Method for Improving the Saleability of Fly Ash" presented in New Orleans, La. Mar. 15-17, 1988.

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