Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1990-03-19
1992-06-16
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55106, B03C 366
Patent
active
051221624
ABSTRACT:
The volumetric flow rate for the addition of a flue gas conditioning agent, such as sulfur trioxide, is established by maintaining the derivative of the electrostatic precipitator power with respect to flow rate within a preselected operating range. The derivative of the precipitator power with respect to time and the derivative of the flow rate with respect to time are measured, and then the derivatives are divided to determine the derivative of precipitator power with respect to flow rate. This calculated value is compared with a preselected operating range. If the calculated value is greater than the preselected operating range, the flow rate of the conditioning agent is increased. If the calculated value is less than the preselected operating range, the flow rate is reduced, until a steady state calculated derivative value within the operating range is reached.
REFERENCES:
patent: 4779207 (1988-10-01), Woracek et al.
patent: 4872887 (1989-10-01), Altman et al.
patent: 4987839 (1991-01-01), Krigmont et al.
Coe, Jr. Everett L.
Hebert Daniel A.
Kozacka Wayne R.
Krigmont Henry V.
Nozick Bernard
Sandler Howard E.
Wahlco Inc.
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