EQUIPEMENT MANFACTURER FOR PROCESS INDUSTRIESNECTACEL VEGETABLE EXTRACTION UNIT 200 LITRES USING LIQUEFIED GAS1 PROCESS The NECTACEL 200 vegetable extraction unit intent is to perform a complete solid-liquid extraction cycle on a plant matrix using a liquefied gas as a solvent. The payload is 200 litres of raw material. The NECTACEL device is designed for these following liquefied gases: • Dimethyl ether (DME or methoxymethane or MZ12x) - Hot water from 60 ° C for adjustment of process parameters - Glycoled water at -10 ° C (for use with n-butane) or -30 °C (for other solvents) - Nitrogen 3 barg in case of use with butane or DME The basis of the process is a closed cycle of a liquefied gas at the evaporative equilibrium. • The solvent is liquid when sprayed on the raw material in the extractor • The solvent evaporates in the boiler, releasing the liquid or crystallized extract The raw material is loaded into a filter bag (with a filtration threshold of 10^), inside a stainless steel basket which is then placed inside the extraction vessel.

Process is according a half-continuous mode: the solvent continuously percolates at controlled flow rate through the matrix. The particular characteristics of this process are: • Transfers of liquid solvent from tank to tank by gravity or pressure drop, without pump. • Evaporation and condensation of the solvent substantially under the same conditions of temperature and pressure in an isothermal and isobaric process, at room temperature, without gas compressor. • Solvent is quite totally recovered to be reused, by desorbing from the matrix and condensation, using a final vacuum pump If a combustible...