The important role of carbon dioxide booster pump in supercritical extraction experiment

The important role of carbon dioxide booster pump in supercritical extraction experiment

The process of carbon dioxide extraction is actually a carbon dioxide separation process, which utilizes the special dissolution of certain substances by carbon dioxide in a supercritical state. It utilizes the relationship between the volumetric capacity of supercritical carbon dioxide and its density, that is, the influence of pressure and temperature on the volumetric capacity of carbon dioxide. Below, we will briefly introduce the influence of pressure;

The supercritical extraction booster device is generally a set of booster devices consisting of a Feentor pneumatic carbon dioxide booster pump as the core and valve pressure gauges. The sealing material of the internal components of the gas driven CO2 booster pump requires wear-resistant and low-temperature resistant materials, and the pipeline requires insulation treatment. The one-way valve is assembled with a large diameter, and the pressure cannot be increased or does not increase due to icing. Usually, carbon dioxide extraction is carried out using the Feentor ZTS-ZTD7-2 system for extraction function.

Simply put, it is to pressurize the medium of carbon dioxide to a very high level (such as the pressure of 3 miles below sea level, 200 times the atmospheric pressure), so that the high pressure gas can dissolve the aromatic essential oil in plants. When the pressure drops (to 100 times atmospheric pressure), carbon dioxide will change from liquid to gas, allowing for the separation and collection of plant essential oils that are still in a liquid mist state. Compared with solvent extraction, this extraction method does not have any solvent residue - quoted from Baidu Baike

The core component parameter models used by Feentor CO2 booster pump in the extraction process are as follows

Carbon dioxide pressurization system circuit

Core component parameters

Drive air pressure 2-8 bar.

Output flow rate: 270L/min (gaseous flow rate), liquid flow rate is approximately 7kg/min.

The dimensions of the drive port and inlet/outlet are G1/2 and NPT3/8.

The maximum output pressure is 15mpa.

The following is a rendering of the carbon dioxide booster pump and booster device system