Steam distillation tank for nicotine extraction

Abstract

The invention discloses a steam distillation tank for nicotine extraction. The steam distillation tank comprises a columnar cylinder which is provided with a heating jacket and is arranged obliquely, wherein a higher end of the columnar cylinder is a charge end; the top part of the charge end is provided with a material inlet; the columnar cylinder, close to the material inlet, is provided with a steam discharge end communicated with an acid absorption device; a lower end of the columnar cylinder is a discharge end; the top and the bottom of the discharge end are respectively provided with a gas inlet and a material outlet; the gas inlet is connected with a steam guide-in pipe; the material outlet is connected with a residue solid-liquid separator; the columnar cylinder is internally provided with a rotation shaft along the axial direction; the rotation shaft is in drive connection with a motor via a belt wheel and a belt; the rotation shaft is provided with spiral blades; a material shifting plate is arranged on the rotation shaft in a position corresponding to the residue solid-liquid separator. According to the invention, the problem of steam condensation of the conventional steam distillation is solved, so that solid, liquid and gas are in full contact. the extraction efficiency is high, and energy sources are saved.

Description

technical field [0001] The invention belongs to the field of alkaloid extraction equipment, in particular to a steam distillation tank for nicotine extraction. Background technique [0002] Waste tobacco contains very valuable nicotine and solanesol. To extract nicotine and solanesol, there are organic solvent extraction-back extraction method, carbon dioxide supercritical extraction method and carbonization decarboxylation (dry distillation) method. The organic solvent extraction-back extraction method not only consumes a large amount of organic solvents, but also pollutes the environment; the carbon dioxide supercritical extraction method not only requires expensive equipment but also costs too much; Solanesol is transformed into the enantiomers, resulting in a decrease in its biological activity. Under alkaline conditions, the active ingredient nicotine is extracted from tobacco waste by steam distillation, which can effectively separate nicotine from other components i...

AI Technical Summary

Problems solved by technology

However, the traditional steam distillation method, on the one hand, requires two devices: a steam generator and an acid absorption device; on the other hand, a large amount of water vapor is condensed into water in the acid absorption device, which not only wastes a lot of energy, but also dilutes the The acid absorbs the solution, so that the post-treatment process must also be equipped with concentration equipment, and the economic benefits are not good

It is for this reason that traditional steam distillation extraction of nicotine is generally only used for laboratory analysis of nicotine content in tobacco samples

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