Our systems feature the Apeks Diaphragm Compressor Technology which utilizes cold separation processing powered by an energy-efficient gas pump. Cold separation means that the separator vessel can maintain lower (cold) temperatures necessary for preserving the terpenes in plant oils, resulting in higher-quality and higher-quantity extractions. Whereas competitor liquid-pump systems place harmful high temperatures in the separation vessel which “cooks” the collected oil, producing dark, thermally-damaged oils.
There are significant differences between liquid and gas pumping. Liquid is an easier pumping mechanism because liquid is 10 times denser than gas; however, liquid pumping actually consumes more energy over the entirety of an extraction run. As is prevalent in this industry, wild claims are made about the increase in yield with liquid pumping, but proponents neglect to mention the increase in energy consumption, and higher temperatures causing thermal degradation.
Liquid CO2 must be converted to a gaseous phase in order to extract plant oils. Phase changes require a significant amount of heating and cooling. That’s why the Apeks Diaphragm Compressor Technology gas pumping system with regenerative heat exchange is designed to capture the hot and cold air which offset each other. This eliminates the need for an additional heater/chiller and typically consumes about 33% less energy than other manufacturers’ extraction equipment.
For more technical information about the Diaphragm Compressor technology, click here.
Watch this video about the benefits of cold separation: