Condensible gas botanical extraction systems and methods

A method for extracting at least one compound from cannabis using a condensable gas solvent, the method consisting essentially of:

• (a) providing cannabis to an extraction chamber wherein water in the cannabis is in a solid phase;
• (b) extracting at least one compound from the cannabis using the condensable gas solvent while maintaining the cannabis in a frozen state and obtaining condensable gas solvent containing the at least one extracted compound;
• (c) withdrawing a solvent stream containing the at least one extracted compound from the extraction chamber;
• (d) conveying the condensable gas solvent containing at least one compound extracted from the cannabis along a solvent flow path extending from the extraction chamber to a heating zone;
• (e) heating the condensable gas solvent from step (d) and conveying the condensable gas solvent from the heating zone proximate to an inlet of a flow nozzle at conditions at which the condensable gas solvent is at least primarily in a gaseous phase;
• and,
• (f) directing the condensable gas solvent to a cyclone chamber and operating the cyclone chamber at conditions at which the condensable gas solvent within the cyclone chamber is primarily in a gaseous phase and the at least one compound extracted from the cannabis is primarily in a liquid phase,
• wherein the condensable gas solvent is selected from the group consisting of carbon dioxide, Xenon, nitrous oxide, ethane, propane, butane, cyclopropane and sulfur hexafluoride.