Abstract: A controlled ambient temperature vaporization system including a source of liquid carbon dioxide at a supply pressure, a pressure reduction valve is provided. The system is configured to reduce the liquid carbon dioxide from the supply pressure to a delivery pressure, a heat exchange device. The system is also configured to exchange heat between a stream of ambient temperature air and the carbon dioxide at delivery pressure, thereby producing a vaporized carbon dioxide stream. The system also includes a backpressure regulator, configured to maintain the vaporized carbon dioxide above a minimum delivery pressure.

Abstract: A method for controlling the ambient temperature vaporization of carbon dioxide, including introducing a liquid carbon dioxide stream at a supply pressure into a pressure reduction valve, thereby producing a carbon dioxide stream at a delivery pressure is provided. The method includes introducing the carbon dioxide stream at the delivery pressure into a heat exchange device, thereby exchanging heat between a stream of ambient temperature air and the liquid carbon dioxide stream, thereby producing a vaporized carbon dioxide stream at the delivery pressure, and introducing the vaporized carbon dioxide stream at the delivery pressure into a backpressure regulator, thereby maintaining the vaporized carbon dioxide stream above a minimum delivery pressure.