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Preparation method of fire-resistant oil adsorption regenerant

A regenerant, anti-oil technology, used in chemical instruments and methods, other chemical processes, etc., to reduce difficulty, meet the requirements of pressure drop and crush resistance, and improve contact opportunities.

Pending Publication Date: 2022-07-05
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the defects of existing adsorption materials, the present invention aims to provide a preparation method of anti-fuel oil adsorption regeneration agent, and the technical route adopted is as follows:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) 1750mL of water glass and 1193mL of sodium aluminate were added to the reactor in parallel, and 305mL of water and 0.10 g of 13X original powder were added, stirred evenly, and heated to 83° C. The heating time was 20 minutes, and the temperature was kept for 12 hours. Replenish water and cool down to less than 40℃;

[0032] (2) Add 34.8mL of aluminum sulfate for the first time, let stand for 20min, add 301.6mL of aluminum sulfate under continuous stirring, filter, rinse 3450mL of ammonium chloride solution in batches, and finally rinse 15.2g of lanthanum chloride, filter cake dried into powder;

[0033] (3) put the powder into the turntable of the ball rolling machine, spray the misty 0.5wt% hydrochloric acid aqueous solution while rotating, until it becomes a small ball of 1-3mm, put it into the roasting furnace and roast it at 450 ° C for 1 hour , the finished product is identified as Sorb-1.

Embodiment 2

[0035] (1) 1550mL of water glass and 1193mL of sodium aluminate were added to the reactor in parallel, and 219mL of water and 0.08g of 13X original powder were added, stirred evenly, and heated to 80° C. The heating time was 16 minutes, and the temperature was kept for 8 hours. Replenish water and cool down to less than 40℃;

[0036] (2) Add 41.1mL aluminum sulfate for the first time, let stand for 20min, add 369.9mL aluminum sulfate under continuous stirring, filter, rinse 2940mL ammonium chloride solution in batches, and finally rinse 28.1g lanthanum chloride, filter cake dried into powder;

[0037] (3) put the powder into the turntable of the ball rolling machine, spray the misty 0.5wt% hydrochloric acid aqueous solution while rotating, until it becomes a small ball of 1-3mm, put it into the roasting furnace and roast it at 450 ° C for 1 hour , the finished product is identified as Sorb-2.

Embodiment 3

[0039] (1) 1095mL of water glass and 716mL of sodium aluminate were added to the reaction kettle in parallel, and 240mL of water and 0.06g of 13X original powder were added, stirred evenly, and heated to 85°C, with a heating time of 25 minutes, and the temperature was kept for 10 hours. Replenish water and cool down to less than 40℃;

[0040] (2) Add 21.3mL of aluminum sulfate for the first time, let stand for 20min, add 297.9mL of aluminum sulfate under continuous stirring, filter, rinse 2090mL of ammonium chloride solution in batches, and finally rinse 14.1g of lanthanum chloride, filter cake dried into powder;

[0041] (3) put the powder into the turntable of the ball rolling machine, spray the misty 0.5wt% hydrochloric acid aqueous solution while rotating, until it becomes a small ball of 1-3mm, put it into the roasting furnace and roast it at 450 ° C for 1 hour , the finished product is identified as Sorb-3.

[0042] The adsorption effect was analyzed after the above thre...

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Abstract

The invention discloses a preparation method of a fire-resistant oil adsorption regenerant. An A / 13X composite molecular sieve is prepared by adopting a seed crystal method. Unreacted silicon oxide precipitates in the solution are prepared into a silicon-aluminum carrier, meanwhile, the composite sub-sieve is dispersed on the silicon-aluminum carrier, sodium removal and modification are conducted on the silicon-aluminum carrier through exchange washing, and the adsorbent finished product is prepared through rolling. The adsorbent has more acid centers, proper specific surface area, strong adsorption capacity and good regeneration effect, and can save the purchase cost of fire-resistant oil for enterprises.

Description

technical field [0001] The invention relates to a preparation method of an anti-fuel oil adsorption regenerator, which belongs to the category of adsorption regeneration. Background technique [0002] Fire-resistant oil is the abbreviation of synthetic phosphate ester fire-resistant hydraulic fluid. It has excellent heat resistance, fire resistance and lubricating properties. It is often used in the speed control system of steam turbines in power plants, including some nuclear power units. Oil, bypass oil and main pump motor lubricating fluid. As a kind of artificial synthetic oil, fire-resistant oil is expensive and has poor stability. With operation and use, the color of the oil deepens, the acid value increases, and there will be precipitates in severe cases, and the deteriorated anti-oil oil will affect its performance. [0003] At present, there are a variety of regeneration treatment methods for degraded fire-resistant oil. Among them, physical methods include sedimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/30
CPCB01J20/02B01J20/30
Inventor 王涛郭卡莉李世鹏高明军谭映临叶红张新功
Owner QINGDAO HUICHENG PETROCHEM TECH
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