A kind of composite adsorption material and preparation method thereof

A technology of composite adsorption materials and carbon materials, which is applied in the field of composite adsorption materials containing metal-organic framework materials and its preparation, can solve the problems of low yield of MOFs and low specific surface area of ​​MOFs, so as to avoid deposition problems, good thermal conductivity, The effect of enhancing thermal conductivity

Active Publication Date: 2020-04-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the independent dispersion of copper acetate and trimesic acid in this method during the ball milling process, more copper acetate and trimesic acid did not react to form metal-organic frameworks, resulting in a very low yield of MOFs and the specific surface area of ​​MOFs produced low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare a sodium silicate solution with a silicon dioxide content of 20wt%, and add HKUST-1 in an amount of 0.1g / mL and sodium dodecylsulfonate in an amount of 1mg / mL, stir mechanically for 15min; ultrasonically for 90min to prepare the first Suspension, ultrasonic frequency is 25KHz, power is 300W;

[0044] Prepare a silica sol with a silica content of 10wt%, and add HKUST-1 in an amount of 0.1g / mL, sodium dodecylsulfonate in an amount of 1mg / mL, and non-oxidized Graphene was mechanically stirred for 15 minutes, and the second suspension was obtained by ultrasonication for 60 minutes. The frequency of the ultrasonic wave was 25KHz, and the power was 300W.

[0045] The first suspension and the second suspension are uniformly mixed in a weight ratio of 1:1 and sprayed out from the nozzle under a certain pressure, and then the first suspension is contacted with a 25wt% sulfuric acid solution in a weight ratio of 1:1 to generate Silica gel, aged at 20°C for 10h, washed wi...

Embodiment 2

[0047] Prepare a sodium silicate solution with a silica content of 20wt%, and add ZIF-8 in an amount of 0.1g / mL and sodium dodecylsulfonate in an amount of 1mg / mL, stir mechanically for 15min, and ultrasonically for 90min to prepare the first Suspension, ultrasonic frequency is 25KHz, power is 300W;

[0048] Prepare a silica sol with a silica content of 10wt%, and add ZIF-8 in an amount of 0.1 g / mL, sodium dodecylsulfate in an amount of 1 mg / mL, and non-oxidized Graphene was mechanically stirred for 15 minutes, and the second suspension was obtained by ultrasonication for 60 minutes. The frequency of the ultrasonic wave was 25KHz, and the power was 300W.

[0049] Mix the first suspension and the second suspension uniformly at a weight ratio of 1:1 and spray them out from the nozzle with a certain pressure, and then contact the first suspension with a sulfuric acid solution with a concentration of 25wt% at a weight ratio of 1:1 The reaction produces silica gel, which is aged a...

Embodiment 3

[0051] Prepare a sodium silicate solution with a silicon dioxide content of 15wt%, and add ZIF-8 in an amount of 0.1 g / mL and sodium dodecylbenzenesulfonate in an amount of 1 mg / mL, stir mechanically for 15 min, and ultrasonically for 60 min to prepare the first 1. Suspension, ultrasonic frequency is 25KHz, power is 300W;

[0052] Prepare a silica sol with a silica content of 10wt%, and add ZIF-8 in an amount of 0.2 g / mL, sodium dodecylbenzenesulfonate in an amount of 1 mg / mL, and unoxidized The graphene was mechanically stirred for 15 minutes, and the second suspension was obtained by ultrasonication for 90 minutes. The frequency of the ultrasonic wave was 25KHz, and the power was 300W.

[0053] Mix the first suspension and the second suspension uniformly at a weight ratio of 1:1 and spray them out from the nozzle with a certain pressure, and then contact the first suspension with a sulfuric acid solution with a concentration of 15wt% at a weight ratio of 1:1.2 The reaction ...

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Abstract

The invention discloses a composite adsorption material and a preparation method thereof, wherein the composite adsorbent material contains a metal organic skeleton material, a carbon material and a silica gel according to a weight ratio of the metal organic skeleton material to the carbon material to the silica gel (calculated as silica) of 1:(0.01-0.07):(0.5-2.0). According t the present invention, the skeleton structure of the metal organic skeleton material in the composite adsorption material is intact and is undamaged; the composite adsorption material has high mechanical, and is not easily powdered during pressure changing adsorption so as to greatly prolong the service life; and with the composite adsorption material, the coupling absorption of the silica gel and the metal organicskeleton material is achieved, and under the coupling adsorption effect, the adsorption capacity of the composite adsorption material on gas is greatly increased.

Description

technical field [0001] The invention relates to a composite adsorption material and a preparation method thereof, in particular to a composite adsorption material containing a metal organic framework material and a preparation method thereof. Background technique [0002] A large amount of dry gas will be produced in the process of petroleum refining. At present, the common treatment method for dry gas in refineries is to recover part of the hydrogen resources and send them to the fuel pipeline network for combustion. Among them, ethylene and other components with high added value are not used. Recycling results in a great waste of resources. In addition, a large amount of methane will be produced in the process of oil field production and so on. With the increasing pressure on environmental protection, it is imminent to recover methane and other gases economically. [0003] Metal-organic framework materials (Metal-Organic Frameworks, referred to as MOFs) are organic ligand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02C10G70/04
CPCB01D53/02B01J20/103B01J20/20B01J20/226C10G70/046
Inventor 邢兵张英赵亮王海洋马蕊英王刚
Owner CHINA PETROLEUM & CHEM CORP
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