Molecular distillation deacidification method and equipment for edible oil

Abstract

The invention discloses a molecular distillation deacidification method and equipment for edible oil. A molecular distillation system adopts single molecular distillation equipment or is formed by connecting multiple stages of molecular distillation equipment in series or parallel or in a series and parallel combination way; the positions of the multiple stages of molecular distillation equipment are disposed horizontally or vertically or in a horizontal and vertical combination manner; the edible oil to be distilled enters the molecular distillation system, so as to enter the single molecular distillation equipment or enter the molecular distillation stage I, the molecular distillation stage II and the molecular distillation stage n; the edible oil to be distilled enters the molecular distillation equipment from the top end, and is subjected to primary uniform distribution through a distribution pipe pore or / and slotted plate so as to be uniformly distributed to the upper part of the heating surface of the equipment to form a uniform thin film flowing from top to bottom; the edible oil to be distilled is at least uniformly distributed again through a distribution slotted plate or a screen hole so as to be uniformly distributed to the heating surface of the equipment to the bottom; when the molecular distillation system adopts multiple stages, the molecular distillation stage I is used for removing water retained in the edible oil, and the molecular distillation stages II and n are used for removing all types of free fatty acids.

Description

technical field [0001] The invention belongs to the technical field of edible oil technology, and in particular relates to a method for distillation, purification and separation of different components of edible oil products, oleochemical products, other various chemical products, and plant extracts, in particular to a molecular Distillation deacidification method and equipment. Background technique [0002] At present, edible oil manufacturers mainly use the refining method of alkali refining deacidification and steam stripping deodorization. This refining method of alkali refining deacidification and steam stripping deodorization has several shortcomings. One is caustic soda (strong alkali) ) to neutralize fatty acids, and also saponify more neutral edible oils, causing more losses. Second, a lot of waste water and by-product saponins are produced in the process of alkali refining, which causes greater environmental pollution. Third, The deacidification and deodorization ...

AI Technical Summary

Problems solved by technology

However, there are certain limitations in this technique:

[0005] 1. The design body of the equipment has an oil cavity and a heat transfer oil cavity. The oil cavity is negative pressure, and the heat transfer oil cavity is positive pressure. If it goes into the oil cavity, the consequences will be unimaginable. At the same time, because the heating surface is not round and evenly stressed, it is also easily deformed, and the distillation and evaporation effect is not good.

[0006] 2. The oil chamber of this technology has chamber A on the top and chamber B below, which is equivalent to an oil storage tank with an oil storage function on the top and an oil storage tank with an oil storage function on the bottom. Such a main body The equipment is not scientific

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