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US 5,292,405 AGranted
Electrolytic cell and method
AssigneeBaker Hughes Incorporated
InventorGraham Wicks
Life of this patent
Estimating the term…
Abstract
An electrolysis cell provides a plurality of electrode stacks arranged electrically and mechanically back-to-back in a vertical orientation to develop an electrically neutral effluent. The electrode stacks comprise a plurality of electrode plates that seal against an inert housing by seals with a U-shaped cross-section. The cell is fully insulated and provides a series electrolyte flow path.
Claims20
An electrolytic flow cell comprising
- a. an insulated housing;
- b. a plurality of generally planar electrodes in the housing arranged in at least a first and a second stack of electrodes;
- c. an inlet port penetrating the housing to direct electrolyte to the first stack;
- d. a conduit between each stack within the housing to conduct electrolyte within the housing in flow path series from the first stack to the second stack;
- e. an outlet port penetrating the housing to receive effluent from the second stack;
- and
- f. electrical connections in the housing for imposing a charge on said first stack of electrodes in a first polarity and a charge on said second stack of electrodes in the opposite polarity, with the stacks arranged back-to-back in flow path series such that the polarity of the last electrode of the first stack past which the electrolyte flows is the same as the polarity of the first electrode of the second stack.
4 more elements
An electrolytic flow cell comprising
- a. an insulated housing;
- b. a plurality of electrode stacks within the housing, each electrode stack comprising a first end of a first electrical charge and a second end of an opposite electrical charge, the electrode stacks arranged in a series fluid flow path, and the first end of one electrode stack arranged adjacent the first end of a second electrode stack in the fluid flow path, each electrode stack comprising a plurality of electrode plates each having an edge;
- c. a seal on the edge of each electrode plate and abutting the housing;
- d. an inlet port penetrating the housing to direct electrolyte to a first stack;
- e. an outlet port penetrating the housing to receive effluent from a final stack;
- and
- f. a conduit between each stack within the housing to conduct electrolyte within the housing in flow path series.
4 more elements
A method of electrolysis comprising the steps of:
- a. introducing an electrolyte into an electrolysis cell at an inlet port;
- b. passing the electrolyte over a plurality of electrically energized electrodes arranged in a first electrode stack with an imposed charge thereon in a first polarity, the intrastack spacing between said electrodes being substantially equal;
- c. passing the electrolyte through a conduit to a second electrode stack;
- d. passing the electrolyte over a plurality of electrically energized electrodes arranged in a second electrode stack with an imposed charge thereon in the opposite polarity, the intrastack spacing between said electrodes being substantially equal, and the space between said first and second electrode stacks being substantially greater than the intrastack electrode spacing of each of said stacks;
- and
- e. discharging the electrolyte from the electrolysis cell at a discharge port downstream of the second electrode stack.
3 more elements
Dependencies are inferred from the claim text.