Difference between supercritical CO2 extraction and chemical extraction

It can be extracted at close to room temperature (35-40 ℃) and under CO2 gas cover, effectively preventing the oxidation and dissipation of heat-sensitive substances. Therefore, all the components of medicinal plants are maintained in the extract, and the substances with high boiling point, low volatility and easy pyrolysis can be extracted below their boiling point temperature;

2016-11-05

How to choose the right oil instrument?

When selecting petroleum instruments, we should first determine the objectives of the demand inspection according to the nature of the petroleum products inspected by our own company. According to the national standard to select the appropriate analytical instruments. Not the cheaper the better, nor the higher the offer the better.

2024-11-06

How does the supercritical CO2 drying device work?

Because the supercritical fluid has no surface tension, there is no additional pressure in the gel capillary pores due to surface tension.

2024-11-06

How is the density of petroleum products determined?

The determination of density can approximate the quality and chemical composition of petroleum commodities. In the process of storage and transportation, if the density of petroleum commodities is found to increase or decrease significantly, it is possible to distinguish whether heavy oil or light oil may be mixed. or loss of light fraction transpiration.

2024-11-06