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A method for extracting plant aromatic oil by dry distillation

A plant aromatic oil, distillation extraction technology, applied in the directions of essential oils/spice, fat production, etc., can solve the problems of large water content of waste residue, high energy consumption, low extraction efficiency, etc., and achieves improvement of daily processing capacity and distillation temperature. , the effect of reducing labor intensity and labor cost

Active Publication Date: 2020-10-16
YIBIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for dry distillation extraction of plant aromatic oil, which can overcome the shortcomings of traditional methods such as low extraction efficiency, high energy consumption, and high water content of waste residue after distillation, which is not conducive to subsequent utilization.

Method used

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  • A method for extracting plant aromatic oil by dry distillation

Examples

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Effect test

Embodiment 1

[0033] Embodiment 1: a kind of method for oil camphor branch, leaf aromatic oil dry distillation extraction, comprises the following steps:

[0034] a. Cinnamomum camphora branches and leaves are fed to the shredder (1) to chop the camphor leaves, and the crushed materials pass through a 10 mm sieve.

[0035] b. The chopped materials are naturally scattered into the airtight conveying device (2), and the airtight conveying device (2) conveys the chopped materials to the dry heat distillation device (3) feed port (31) and enters the dry heat distillation device ( 3) In the interior, the material is passed between the stationary shell (32) of the dry heat distillation device (3) and multiple rotating heat exchange tube bundles (33) through the shovel plate (34) installed on the heat exchange tube bundle (33) The material is scooped up and refluxed at a high position, so that the material spirally moves in the dry heat distillation device, fully and evenly contacts with the heat ...

Embodiment 2

[0038] A method for dry distillation extraction of camphor root aromatic oil, comprising the following steps:

[0039] a. The camphor root is fed to the shredder (1), the camphor root is chopped, and the crushed material is passed through a 10 mm sieve.

[0040] b. The chopped materials are naturally scattered into the airtight conveying device (2), and the airtight conveying device (2) conveys the chopped materials to the dry heat distillation device (3) feed port (31) and enters the dry heat distillation device ( 3) In the interior, the material is passed between the stationary shell (32) of the dry heat distillation device (3) and multiple rotating heat exchange tube bundles (33) through the shovel plate (34) installed on the heat exchange tube bundle (33) The material is scooped up and refluxed at a high position, so that the material spirally moves in the dry heat distillation device, and fully and evenly contacts with the heat exchange tube bundle (33) to be heated. The ...

Embodiment 3

[0043] A method for dry distillation extraction of rock osmanthus twig and leaf aromatic oil, comprising the following steps:

[0044] a. Rock osmanthus branches and leaves are fed to the shredder (1), and the rock osmanthus branches and leaves are chopped, and the crushed materials are passed through a 6 mm sieve.

[0045] b. The chopped materials are naturally scattered into the airtight conveying device (2), and the airtight conveying device (2) conveys the chopped materials to the dry heat distillation device (3) feed port (31) and enters the dry heat distillation device ( 3) In the interior, the material is passed between the stationary shell (32) of the dry heat distillation device (3) and multiple rotating heat exchange tube bundles (33) through the shovel plate (34) installed on the heat exchange tube bundle (33) The material is scooped up and refluxed at a high position, so that the material spirally moves in the dry heat distillation device, and fully and evenly cont...

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Abstract

The present invention relates to a method for dry distillation extraction of plant aromatic oil. The method comprises the following steps: cutting a raw material to form a broken material, allowing the broken material to fall into a closed hopper, and conveying the broken material into a dry and hot distillation device by a closed conveying device arranged at the bottom of the hopper, wherein the dry and hot distillation device is composed of a stationary shell and a rotating heat transfer tube bundle; and introducing a heat source medium with a predetermined temperature into the heat exchange tube bundle in order to indirectly heat the material in the dry and hot distillation device in order to make aromatic oil in the material and water form a mixed gas, discharging the mixed gas from a top outlet, condensing the mixed gas by a condenser to form a liquid, and outputting the liquid from a material outlet through the closed conveying device. The method has the advantages of improvement of the daily processing capacity, reduction of the labor intensity and the labor cost, prevention of the loss of the plant aromatic oil, facilitation of the rapid distillation of the material, increase of the thermal efficiency of distillation, facilitation of the evaporation of aromatic oil components with high boiling points, and obtaining of substance components not obtained through traditional processes.

Description

technical field [0001] The invention relates to a method for extracting plant aromatic oil by dry distillation, in particular to a method for using high-temperature indirect heating and continuous dry heat distillation of aromatic oil. Background technique [0002] At present, the distillation and extraction of plant aromatic oils all use atmospheric pressure retort steam distillation or pressurized kettle steam distillation. The disadvantages of these two methods are: [0003] 1. Although the atmospheric pressure retort steam distillation method has simple equipment and is easy to operate, since the distillation is carried out at the boiling point of water, it is difficult for a large amount of high-boiling aromatic oil components contained in plants to distill with water vapor, resulting in incomplete distillation and aromatic oils. Low oil yield; 2. Although the pressurized still steam distillation method can overcome the shortcomings of the atmospheric pressure steamer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
CPCC11B9/027
Inventor 张超魏琴杜永华冯瑞章游玲黄先全
Owner YIBIN UNIV
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