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Super-high-efficiency lipid hydrolysis reactor and reaction process

An oil hydrolysis and ultra-efficient technology, applied in the chemical industry, can solve the problems of poor operation safety, large shortening space, and high equipment requirements, and achieve the effects of reducing energy consumption, reducing reaction temperature and pressure, and shortening reaction time.

Active Publication Date: 2015-03-04
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the reaction pressure of this process is mostly as high as 6MPa, the temperature is as high as 275°C, the operation safety is poor, and the requirements for equipment are relatively high, and the production cost is relatively high.
In addition, although the reaction time is shorter than the normal pressure hydrolysis method and the enzymatic hydrolysis method, it is still relatively long, and there is a large room for shortening.

Method used

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  • Super-high-efficiency lipid hydrolysis reactor and reaction process

Examples

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Effect test

Embodiment 1

[0025] An ultra-high-efficiency oil hydrolysis reactor, including a raw oil oil storage tank 1, a water storage tank 2, a steam inlet pipe 3, a gas-liquid jet mixer 4, an inner cylinder 5, an outer cylinder 6, a glycerin flash tank 7, and a fatty acid flash tank Tank 8, scraper evaporator 9, glycerin rectification tower 10 and fatty acid rectification tower 11, wherein the gas-liquid jet mixer 4 is tubular, the bottom end is a helical tube, and the side wall of the helical tube has a plurality of small holes , The function of the gas-liquid jet mixer is to form a strong mixing action with the oil through the highly turbulent jet action of the high-pressure steam, so that the oil-water two phases that are difficult to be miscible can be highly emulsified and mixed and undergo a rapid hydrolysis reaction. The top of the gas-liquid jet mixer 4 is connected to the steam inlet pipe 3, and the bottom end enters the inner cylinder 5. The top of the inner cylinder 5 is open, and the bo...

Embodiment 2

[0029] A kind of reaction technique of ultra-efficient grease hydrolysis reactor according to claim 1, this technique comprises the following steps:

[0030] (1) After the water vapor ejected from the steam inlet pipe 3 passes through the gas-liquid jet mixer 4, it is injected into the inner cylinder 5 in a highly turbulent flow, which promotes the highly emulsified and hydrolyzed oil-water mixture in the inner cylinder 5. Specifically, after preheating the raw oil and water in the raw oil storage tank and water storage tank, they are respectively fed into the bottom of the inner cylinder of the reactor through a high-pressure pump, and the high-temperature and high-pressure water vapor is passed through the steam inlet pipe through the gas-liquid The jet mixer feeds into the reactor inner barrel. The water vapor is sprayed from the gas-liquid jet mixer at high speed to the bottom of the inner cylinder, and fully contacts with the reaction materials for efficient heat transfer...

Embodiment 3

[0035] This example illustrates ultra-efficient high-pressure continuous hydrolysis of palm oil.

[0036] (1) The hydrolysis reaction tower is 38 meters high, and the upper and lower sections are 1.2 meters in diameter. The axis of the main reaction section is fixed. The rectification section of the glycerol water rectification tower adopts a packed column with 40 theoretical plates, the stripping section adopts a valve tower with a plate number of 30; the fatty acid distillation adopts a packed column with a plate number of 80.

[0037] (2) The raw palm oil (containing 40% oleic acid; 10% linoleic acid; 45% palmitic acid and 5% stearic acid) is preheated and fed into the reactor inner cylinder 3 at a rate of 4t / h, while The hydrolyzed water is sent into the inner cylinder of the reactor at a rate of 2.2t / h, and the water vapor at 250°C and 4MPa is sprayed into the inner cylinder through the gas-liquid jet mixer at a rate of 2.5t / h, and the reactor starts to work at this time...

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Abstract

The invention relates to a super-high-efficiency lipid hydrolysis reactor which comprises a raw material lipid storage tank, a water storage tank, a steam inlet tube, a gas-liquid ejection mixer, an inner cylinder, an outer cylinder, a glycerinum flash tank, a fatty acid flash tank, a scraper evaporator, a glycerinum rectifying column and a fatty acid rectifying tower. A high-temperature high-pressure steam power source is adopted, and a gas-liquid ejection mixer is taken as a compulsive material mixing, mass transfer and reaction key component. The invention further provides a reaction process of the reactor. By adopting the reactor, the phase boundary of lipid and water is greatly increased, so that the reaction time of hydrolysis is greatly shortened, on the basis, the reaction temperature and the pressure can be appropriately reduced, so that the energy consumption and the operation cost are reduced, and meanwhile the security coefficient of equipment is increased; the reactor can be used in the hydrolysis process of lipid consisting of different fatty acids, the different fatty acids and glycerinum water can be efficiently separated after the hydrolysis is completed, and a corresponding fatty acid product and a glycerinum product are obtained.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a super-efficient oil hydrolysis reactor and a reaction process. Background technique [0002] Fatty acid is one of the most basic and widely used chemical raw materials in the field of oleochemicals. Using fatty acids as raw materials, various fatty acid derivatives and various surfactants can be prepared, which are widely used in washing, medicine, cosmetics, plastics, textiles, papermaking, rubber, food, petroleum, synthetic fibers, tanning, mineral processing, machinery, etc. industry. There are two main ways of industrial sources of fatty acids: one is obtained through the hydrolysis of natural oils, and the other is synthesized through petrochemical raw materials. The former is the main method of industrial production of fatty acids at present. The natural oil hydrolysis method can be divided into atmospheric pressure catalytic hydrolysis method, enzymatic hydrolysis metho...

Claims

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Application Information

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IPC IPC(8): C11C1/04C07C31/22C07C27/02
CPCC11C1/04C11C1/10C07C29/095C07C51/09C07C31/225C07C57/12
Inventor 周政张志炳王宝荣孟为民张锋贺向坡张玲玲罗华勋杨程
Owner NANJING UNIV
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