A kind of aminosiloxane series decarburization solvent and preparation method thereof

An aminosiloxane and decarburization technology, applied in separation methods, chemical instruments and methods, reagents, etc., can solve the problems of high regeneration energy consumption, harsh conditions, easy volatility, etc., and achieve low desorption energy, mild reaction conditions, Low volatility effect

Active Publication Date: 2018-05-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at providing a new type of functionalized molecular design based on the shortcomings of the existing alcohol amine solvents, such as easy degradation, volatilization, high regeneration energy consumption, and the need to use a large number of auxiliary agents such as antioxidants and corrosion inhibitors. Aminosiloxane series decarburization solvents and preparation methods thereof overcome the problems of harsh preparation methods and high costs in the prior art

Method used

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  • A kind of aminosiloxane series decarburization solvent and preparation method thereof
  • A kind of aminosiloxane series decarburization solvent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 68.4 g of allylamine and 0.78 g of catalyst (3000 ppm) into a 250 mL three-necked flask with a condensing reflux tube, mix and stir evenly, then add 600 g of low-hydrogen silicone oil (hydrogen content 0.20%), and turn on the heating equipment at the same time, The temperature was controlled at 50-60 °C, reacted for 2 h, and then added dropwise 0.33 g of catalyst. After the dropwise addition, the temperature was raised to 100 °C, kept for 2 h, and finally brought to a low boil.

Embodiment 2

[0028] Add 68.4 g of allylamine and 0.52 g of catalyst (1000 ppm) into a 250 mL three-necked flask with a condensing reflux tube, mix and stir evenly, then add 80.4 g of hydrogen-containing double caps, and turn on the heating equipment at the same time, and control the temperature at 50-60 ℃, reacted for 2 h, then added 0.22 g of catalyst dropwise, raised the temperature to 100 °C after the dropwise addition, kept the temperature for 2 h, and finally pumped to a low boil.

Embodiment 3

[0030] Add 68.4 g of allylamine and 0.54 g of catalyst (1000 ppm) into a 250 mL three-necked flask with a condensing reflux tube, mix and stir evenly, then add 85.7 g of hydrogen-containing rings, and turn on the heating equipment at the same time, and control the temperature at 50~60 °C , reacted for 2 h, and then added 0.23 g of catalyst dropwise. After the dropwise addition, the temperature was raised to 100 ° C, kept for 2 h, and finally pumped to a low boil.

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Abstract

Belonging to the technical field of gas separation, the invention discloses a novel amino siloxane series decarbonization solvent and a preparation method thereof. The amino siloxane series decarbonization solvent prepared by the method provided by invention can quickly absorb CO2 and form solid carbamate. The amino siloxane series decarbonization solvent has the outstanding advantages of low steam pressure, stable structural properties, designable functional group, rapid decarbonization, low regeneration energy consumption, mild performance and no corrosion to equipment, environmental protection, and no pollution, etc.

Description

technical field [0001] The invention relates to a novel decarburization solvent in the technical field of gas separation and a preparation method thereof, in particular to a novel aminosiloxane series decarburization solvent and a preparation method thereof. Background technique [0002] Alcohol amine decarburization technology is currently the most feasible and effective acid gas capture technology commercially. This technology is represented by organic alcohol amine solvents such as MEA, MDEA and DEA. Due to its physical properties, it is widely used in the purification of natural gas, coal-fired flue gas, refinery gas and other gases. Alcohol amine method to remove CO 2 The effect is good and the process is mature, but there are many disadvantages. The solvent is easy to degrade and volatilize, the regeneration energy consumption is high, and a large amount of auxiliary agents such as antioxidants and corrosion inhibitors are required. With CO 2 The development of capt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/388C08G77/26B01D53/14B01D53/62C10L3/10
CPCY02C20/40Y02P20/151
Inventor 毛松柏刘鹏汪东
Owner CHINA PETROLEUM & CHEM CORP
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