ESP performance optimization control

Gas separation: processes – With control responsive to sensed condition – Electric or electrostatic field

Reexamination Certificate

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Details

C095S007000, C095S081000, C096S020000, C096S024000, C096S025000, C096S080000, C323S903000

Reexamination Certificate

active

07081152

ABSTRACT:
A gas separation apparatus which uses electrostatic precipitators and a DC power supply is controlled to optimally remove moderate to high resistivity ash. The DC power supply is pulse width modulated to maximize the product of the peak electric field and the average electric field. The method used to optimize operation includes selecting initial on and off times for the power supply, operating the power supply using the initial off and on times, and progressively decreasing the off time. A determination is made whether the off time may be further decreased. Ultimately, the on and off time intervals that produce the highest peak and average voltage are determined, and the system is operated using these parameters. A procedure may be periodically repeated to monitor the process and detect if there has been a change in the system that would require new time intervals. The novel separation apparatus and control method offer particular synergy when applied to the effluent stream from a coal-fired electric power plant or other similar gas streams.

REFERENCES:
patent: 1959374 (1934-05-01), Lissman
patent: 2666496 (1954-01-01), Willison
patent: 3048955 (1962-08-01), Little
patent: 3443358 (1969-05-01), Drenning et al.
patent: 3577708 (1971-05-01), Drenning et al.
patent: 3984215 (1976-10-01), Zucker
patent: 4311491 (1982-01-01), Bibbo et al.
patent: 4354860 (1982-10-01), Herklotz et al.
patent: 4382805 (1983-05-01), Herklotz et al.
patent: 4626261 (1986-12-01), Jorgensen
patent: 4659342 (1987-04-01), Lind
patent: 4690694 (1987-09-01), Alig et al.
patent: 4772998 (1988-09-01), Guenther et al.
patent: 4936876 (1990-06-01), Reyes
patent: 5217504 (1993-06-01), Johansson
patent: 5311420 (1994-05-01), Zarfoss et al.
patent: 5401299 (1995-03-01), Kroeger et al.
patent: 5471377 (1995-11-01), Donig et al.
patent: 5542967 (1996-08-01), Ponizovsky et al.
patent: 5575836 (1996-11-01), Sugiura et al.
patent: 5601633 (1997-02-01), Ponizovsky et al.
patent: 5639294 (1997-06-01), Ranstad
patent: 5707422 (1998-01-01), Jacobsson et al.
patent: 6224653 (2001-05-01), Shvedchikov et al.
patent: 6611440 (2003-08-01), Johnston et al.
patent: 2001/0011499 (2001-08-01), Reyes
patent: 6-47314 (1994-02-01), None

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