Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-10-02
1976-07-13
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 33, B01D 1502
Patent
active
039692426
ABSTRACT:
A control system for a liquid-solid contacting apparatus and method therefor is designed to greatly minimize the dilution and contamination of the product streams as well as to perform the desired separation, concentration or conversion reactions at peak efficiency.
The liquid-solid contactor comprises a loop; a plurality of loop valves dividing the loop into loading, pulse and regenerating sections; feed means for supplying a feed containing sorbable material to the loading section; sorption solid substantially filling the loop; regenerating means for supplying regenerating fluid to the regenerating section; first removal means for removing the material desorbed by the regenerating fluid from the loop; second removal means for removing the processed liquid from the loop; pulse inlet means for supplying a pulse liquid to the pulse section and an outlet means for removing a portion of the pulse liquid from the loop.
The control system comprises first control means for controlling the removal of the portion of the pulse liquid which is used to periodically push a sorption solid in a direction counter to the direction of the flow of feed in the loop contactor and for controlling the removal and introduction of other liquid streams in volumetric relation to the amount of pulse liquid which has been supplied; second control means for allowing the sorption solid to be admitted into a pulse section of the loop and for stopping the supply of sorption solid when a given amount of sorption solid has been admitted into the pulse section; third control means for controlling the amount of sorption solid movement in the loop; and programming means for activating the feed means, regenerating means, first and second removal means, and the first, second and third control means in a prearranged order.
REFERENCES:
patent: 3509998 (1970-05-01), Pellett et al.
patent: 3565798 (1971-02-01), Barnes
patent: 3580842 (1971-05-01), Higgins
patent: 3677937 (1972-07-01), Higgins et al.
Cintins Ivars
Dart Environment and Services Company
Hart Charles N.
LeMaire Margareta
Valles Fred S.
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