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Technical method for continuously producing fatty glyceride and special equipment thereof

A technology of fatty acid glycerides and process methods, which is applied in the field of continuous production of fatty acid glycerides and its special equipment, can solve the problems of inability to realize continuous automatic large-scale production, complicated and uneconomical production process, etc., and achieve large-scale Large-scale continuous production, accelerated esterification reaction speed, and improved production efficiency

Inactive Publication Date: 2013-07-17
李普选
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  • Application Information

AI Technical Summary

Problems solved by technology

Since the lipidation reaction is a reversible reaction, the reaction will proceed in the opposite direction, and the hydrolysis reaction of fatty acid glycerides will occur. The final esterification reaction will not be complete, the esterification rate of fatty acid glycerols will be low, the purity of the product fatty acid glycerides will be low, and the content of fatty acids will be high. , which directly affects the use of fatty acid glycerides
Second, due to the mutual incompatibility of glycerol and fatty acids, the reaction efficiency is low, so the process of reaction is affected, the production process is complicated, the energy consumption is large, the industrial production cost is extremely high, and it is extremely uneconomical
The third can only use group tanks for batch reaction, and use multiple groups of tanks in parallel to form continuous production, which cannot realize continuous automation and large-scale production

Method used

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  • Technical method for continuously producing fatty glyceride and special equipment thereof
  • Technical method for continuously producing fatty glyceride and special equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Embodiment 1: Referring to Fig. 1, in the figure, the fatty acid is preheated in the fatty acid temporary storage tank V406, sent to the primary heat exchanger WG402b by the fatty acid delivery pump P405 for preheating again, and finally sent to the esterification reactor V403a. Glycerin is transported from the storage tank V401 to the catalyst temporary storage tank V402 by the pump P401, and the catalyst is added into the catalyst temporary storage tank V402 for stirring, so that the glycerin and the catalyst are fully mixed. The mixed glycerin is added to the esterification reactor V403a through the quantitative pump P402 for reaction. In order to fully carry out the reaction, the esterification reactor V403a is equipped with a stirring device, and the stirring speed is generally 40-150rpm. The water produced by the reaction is removed from the reaction system through the vacuum system P406, so that the reaction can be carried out completely. Part of the fatty acid e...

Embodiment 2

[0027] Embodiment 2: Referring to Fig. 2, the number in the figure is the same as that of Embodiment 1, and the representative meaning is the same. The fatty acid passes through the pump P405, and the glycerin mixed with the catalyst is continuously added to the first group of esterification reaction system V403a by the pump P402 for reaction. After reaching the height of the liquid level of the reaction kettle V403a, it flows into the next esterification reaction system V403b through the overflow pipe, and the liquid level of the esterification reaction kettle V403b flows into the next esterification reaction system V403c through the overflow pipe after reaching the set height. In this way, a series of multiple reaction systems are formed (three in the figure, and different numbers of series can be used as required). Generally, the liquid level is controlled by the last reaction system reactor (for example, H402 of V403c). Of course, each reaction system can also be individual...

Embodiment 3

[0028] Embodiment 3: This embodiment is basically the same as Embodiment 2, and the similarities will not be repeated. The difference is that multiple reaction systems can be connected in parallel, and different numbers of parallel connections can be used as required to realize large-scale continuous production.

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Abstract

The invention discloses a technical method for continuously producing fatty glyceride and special equipment thereof. The technical method comprises the steps of: adding a fatty acid, glycerin and a catalyst to an esterification reaction kettle and allowing the mixture to enter into a homogeneous blending pump for homogeneous emulsion after stirring, realizing circular esterification reaction after the mixture passing through the homogeneous blending pump enters the upper part of the esterification reaction kettle, heating through a heating device in the esterification reaction, discharging the water vapor generated in the esterification reaction kettle through a vacuum system, and continuously conducting the esterification reaction along with the water vapor discharged constantly and the catalyst added constantly until the end of the esterification reaction. The bottom of the esterification reaction kettle of the special equipment is communicated with the upper part thereof through thehomogeneous blending pump, the outlet of which is provided with a finished product discharge pipe. The external wall of the esterification reaction kettle is provided with a heating jacket, or the heating device is arranged between the homogeneous blending pump and the esterification reaction kettle. The invention can be continuously, stably and automatically conducted with complete reaction and good economic benefit.

Description

1. Technical field: [0001] The invention relates to a process and equipment for producing fatty acid glycerides by catalyzing fatty acid and glycerin as raw materials, in particular to a process for continuously producing fatty acid glycerides and special equipment. 2. Background technology: [0002] When fatty acid is used as raw material (fatty acid content is 2%-100%) to carry out catalytic esterification reaction with glycerin to produce fatty acid glyceride, the product is fatty acid glyceride and water. The traditional production process is to put the raw material fatty acid and glycerin in a batch reaction tank, and carry out stirring esterification reaction under certain temperature and catalyst conditions. One is because water is produced in the reaction process, and water dissolves in the reactant glycerol. Since the lipidation reaction is a reversible reaction, the reaction will proceed in the opposite direction, and the hydrolysis reaction of fatty acid glycerid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/08C07C69/30
Inventor 李普选孙旭东
Owner 李普选
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