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Hydrothermal regeneration device and method of waste clay catalyst for dimer acid catalytic reaction

A technology of catalytic reaction and regeneration device, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, chemical instruments and methods, etc., can solve the problems of reducing the amount of fresh clay, bringing about cost and pollution, and large amount of acid clay, etc. , to achieve the effect of reducing the amount of waste clay, efficient recycling, good environmental significance and economic value

Active Publication Date: 2018-06-19
GUANGRAO XINHE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of acid clay used in the dimer acid catalyst is relatively large, which brings cost and pollution problems, and requires regeneration treatment to reduce the amount of fresh clay

Method used

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  • Hydrothermal regeneration device and method of waste clay catalyst for dimer acid catalytic reaction
  • Hydrothermal regeneration device and method of waste clay catalyst for dimer acid catalytic reaction

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Experimental program
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Effect test

Embodiment 1

[0041] Embodiment 1: with reference to attached figure 1 and 2 , a hydrothermal regeneration device for a spent clay catalyst for dimer acid catalytic reaction mentioned in the present invention, comprising a stirring shaft 1, an inner kettle body 2, a heat transfer medium jacket 3, a motor 5, a reducer 6, and a heat transfer medium inlet 7 , heat conduction medium outlet 8, discharge port 9, stirring support 10, stirring paddle 11, the outer side of described inner kettle body 2 is provided with heat conduction medium jacket 3, is provided with heat conduction medium inlet 7 on the upper side of heat conduction medium jacket 3 , a heat-conducting medium outlet 8 is provided on the lower side; a discharge port 9 is provided at the bottom of the inner kettle body 2, a motor 5 and a reducer 6 are installed on the top of the inner kettle body 2, and a stirring shaft 1 is installed in the inner cavity of the inner kettle body 2 , stirring support 10 and stirring paddle 11, the ou...

Embodiment 2

[0045] Embodiment 2: the device that the present invention adopts with reference to embodiment 1, a kind of dimer acid catalytic reaction that the present invention mentions uses the hydrothermal regeneration method of waste clay catalyst, and the steps are as follows:

[0046] A stainless steel inner kettle with a volume of 500L is used, and water is used as a heat transfer medium. First measure 100L waste clay and add it to the reactor; measure 200L water and alcohol mixture (the ratio of softened water and ethanol is 20:2:1), add it to the reactor, stir at 40rpm, stir for 60min; then turn on the heat conduction Medium heating and circulation device, after the temperature of the reaction system in the kettle reaches 75°C, keep it for 20 minutes; stop stirring, stop heating, and after 4 hours of settlement, open the discharge port, first unload the clay, and use it as a catalyst again after drying; Unload the mixture of water and alcohol; finally unload the grease in the kett...

Embodiment 3

[0048] Embodiment 3: the device that the present invention adopts with reference to embodiment 1, a kind of dimer acid catalytic reaction mentioned in the present invention uses the hydrothermal regeneration method of waste clay catalyst, and the steps are as follows:

[0049] A stainless steel inner kettle with a volume of 500L is used, and the heat transfer oil is used as the heat transfer medium. First, measure 300L of the mixture of water and alcohol (softened water: ethanol: ethylene glycol = 20:1:1), inject it into the reactor, then weigh 100L of waste clay, and slowly disperse it into the reactor with the stirring speed of the reactor at 10rpm In the mixed solution in the mixture; after the waste clay is added, increase the stirring speed to 10rpm, and then continue to stir for 90min; then turn on the heat transfer medium heating and circulation device, and wait for the temperature of the reaction system in the kettle to reach 70°C, keep it for 60min; stop stirring, stop...

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Abstract

The invention relates to a hydrothermal regeneration device of a waste white clay catalyst for a dimeric acid catalytic reaction, and a method thereof. The device is characterized in that the outer side of an inner kettle body is provided with a heat conduction medium jacket, the bottom of the inner kettle body is provided with a material outlet, the top of the inner kettle body is provided with a motor and a speed reducer, the output shaft of the speed reducer is connected with stirring paddles through a stirring shaft, and the motor drives the stirring paddles and a stirring support to rotate. Compared with other regeneration methods, the hydrothermal regeneration method adopted for oil and impurities in the waste white clay of the dimeric acid catalytic reaction catalyst has the following advantages: high-efficiency recovery of the oil from the waste white clay, the reservation of the microstructure of the white clay and the regeneration of surface active sites are realized, the recycling of the waste white clay is realized, added alcohols can directly volatilize without affecting the recovery of vegetable oil, the amount of the waste white clay is reduced through the regeneration of the waste white clay, the environment effect and the economic values of a dimeric acid synthesis technology are improved, and the method has good environmental meaning and economic values.

Description

technical field [0001] The invention relates to a regeneration and utilization technology of waste clay for dimer acid catalysis reaction, in particular to a hydrothermal regeneration device and method for waste clay catalyst for dimer acid catalysis reaction. Background technique [0002] Natural clay is processed through a series of processes to prepare activated clay with large surface area, developed pore structure and good adsorption performance, which is widely used in the decolorization and refining treatment of oil products in the petrochemical industry. After the activated clay reaches the saturated adsorption capacity, it loses its adsorption capacity and produces a large amount of waste clay, which requires regeneration or harmless treatment. [0003] The waste clay regeneration technology is to desorb the oil and oil in the waste clay through certain physical and chemical methods, and at the same time dredge the pores and restore the surface active centers. At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18B01J19/00B01J21/16B01J38/02
CPCB01J19/0013B01J19/18B01J21/16B01J38/02B01J2219/00094
Inventor 刘清源代晓东王小涛刘焕荣石会龙
Owner GUANGRAO XINHE CHEM