Production technique for extracting pepper essence by supercritical carbon dioxide process
A carbon dioxide and production process technology, which is applied to the production process field of extracting Zanthoxylum bungeanum by supercritical carbon dioxide method, can solve the problems of flammability and explosion, large loss of volatile oil, low product yield and the like, and achieves no solvent residue and cheap raw materials. Effect
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[0007] The process in the embodiment includes: crushing the dried prickly ash pericarp (moisture is controlled below 14%) with a pulverizer with good airtightness, and the particle size is 60 mesh. Put the Zanthoxylum bungeanum powder into a special extraction tank, lift the tank into the extraction kettle with a crane, then seal the extraction kettle, raise the temperature of the extraction kettle to 30-55°C, and then turn on the booster pump to pump in the carbon dioxide fluid. Raise the extraction pressure of the extraction kettle by 15-35MPa, slowly open the reflux valve, keep the pressure of the extraction kettle stable at 20-35Pa, and maintain the fluid flow rate at 8-25kg / h. The carbon dioxide fluid released from the extraction tank enters the separation tank, so that the soluble components of pepper dissolved in the carbon dioxide fluid are separated from the carbon dioxide in the separation tank, and the separated carbon dioxide fluid is returned to the carbon dioxide ...
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