Systems and methods for making glyoxalated polyacrylamide (gpam) resin
AssigneeSolenis Technologies, L.P.
InventorsLogan Shoop, Dominick Scialabba, John Baron
Life of this patent
Estimating the term…
Abstract
Methods, systems, and production units are provided for producing glyoxalated polyacrylamide (gPAM). A modular on-site production unit for producing glyoxalated polyacrylamide (gPAM) includes an air driven pump configured to provide energy for mixing, adding water, chemicals and transferring a product; and eductors configured to convey hazardous chemicals using energy provided from water pressure, wherein the hazardous chemicals are conveyed at less than atmospheric pressure, wherein control functions use only 12 to 24 volts direct current (VDC).
Claims20
A modular on-site production unit for producing glyoxalated polyacrylamide (gPAM) comprising:
- an air driven pump configured to provide energy for mixing, adding water, chemicals and transferring a product;
- and
- eductors configured to convey hazardous chemicals using energy provided from water pressure, wherein the hazardous chemicals are conveyed at less than atmospheric pressure, wherein control functions use only 12 to 24 volts direct current (VDC).
A low voltage system for making glyoxalated polyacrylamide (gPAM), the system comprising:
- a reaction tank;
- a first water-actuated eductor in selective communication with a water source and a glyoxal source and configured to form a mixture of glyoxal and water and to feed the mixture of glyoxal and water to the reaction tank;
- a second water-actuated eductor in selective communication with the water source and a caustic source and configured to form a mixture of caustic and water and to feed the mixture of caustic and water to the reaction tank to increase a pH therein to a threshold pH at which a crosslinking reaction forms glyoxalated polyacrylamide (gPAM);
- and
- an air-operated pump in selective communication with a polyacrylamide source and configured to pump polyacrylamide to the reaction tank in a first mode of operation, to re-circulate contents of the reaction tank in a second mode of operation, and to remove a product including the glyoxalated polyacrylamide (gPAM) from the reaction tank in a third mode of operation.
A low voltage method for making glyoxalated polyacrylamide (gPAM), the method comprising:
- feeding glyoxal and water into a tank;
- operating an air-operated pump in a first mode to feed a polyacrylamide to the tank;
- feeding caustic into the tank to increase a pH therein to a threshold pH at which a crosslinking reaction forms the glyoxalated polyacrylamide (gPAM);
- operating the air-operated pump in a second mode to re-circulate contents of the tank with the air-operated pump;
- and
- after quenching the crosslinking reaction, operating the air-operated pump in a third mode to remove a product including the glyoxalated polyacrylamide (gPAM) from the tank.
Dependencies are inferred from the claim text.