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US 9,758,437 B2Granted
Apparatus for delivery of carbon dioxide to a concrete mix in a mixer and determining flow rate
AssigneeCarboncure Technologies Inc.
InventorsDean Paul Forgeron, Joshua Jeremy Brown, George Sean Monkman, Paul J. Sandberg
Life of this patent
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Abstract
Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.
Claims28
An apparatus for determining a flow rate of carbon dioxide, comprising:
- (i) a delivery line through which flows gaseous carbon dioxide, liquid carbon dioxide, or a combination of gaseous and liquid carbon dioxide, wherein the delivery line is operably connected to a source of liquid carbon dioxide and/or a source of gaseous carbon dioxide;
- (ii) an orifice at the distal end of the delivery line, through which the carbon dioxide exits from the delivery line, wherein the diameter of the delivery line as it joins the orifice is Dp and the diameter of the orifice is Do, and wherein Do is less than Dp;
- (iii) a first temperature sensor proximal to the orifice and configured to detect a first temperature, T, of carbon dioxide in the delivery line and to transmit the detected first temperature to a flow rate calculation system;
- (iv) a pressure sensor proximal to the orifice and configured to detect a pressure, Pu, of carbon dioxide in the delivery line and to transmit the detected pressure to the flow rate calculation system;
- and
- (v) a second temperature sensor distal to the orifice and configured to detect a second temperature, TD, of carbon dioxide exiting the orifice and to transmit the detected second temperature to the flow rate calculation system.
3 more elements
An apparatus for delivering carbon dioxide to the drum of a ready-mix truck comprising
- (i) a source of liquid carbon dioxide;
- (ii) a first conduit for conducting the liquid carbon dioxide to an orifice, wherein the first conduit is operably connected to the source of liquid carbon dioxide, is flexible and is constructed of materials capable of withstanding the temperature of the liquid carbon dioxide, and wherein the distal portion of the conduit has a diameter Dp and the orifice has a diameter Do, where Do is less than Dp;
- (iii) a second conduit, operably connected to the orifice and configured to conduct solid and gaseous carbon dioxide released from the orifice into the drum of the ready-mix truck, wherein at least a distal portion of the second conduit is flexible;
- and
- (iv) a positioning component attached to the drum of the ready-mix truck into which the second conduit may be inserted in order to position the opening of the second conduit to deliver carbon dioxide to the drum of the ready-mix truck.
2 more elements
Dependencies are inferred from the claim text.