Carbon monoxide adsorbent prepared from MOF (metal organic framework) material as carrier as well as preparation method and application of carbon monoxide adsorbent

A metal-organic framework and carbon monoxide technology, applied in the application of adsorption and separation of carbon monoxide, in the field of carbon monoxide adsorbents, can solve the problems of the collapse of the metal-organic framework, the inability of the metal-organic framework to withstand high temperature, and the inability to obtain structural π complex adsorption materials, etc. The effect of improving adsorption performance and good adsorption performance

Active Publication Date: 2018-08-21
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, metal-organic frameworks are not resistant to high temperatures. When divalent copper salts are introduced into the metal-organic frameworks, the metal-organic frameworks are prone to collapse during the high-temperature self-reduction process, and it is impossible to obtain π complex adsorption materials with a good structure.

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  • Carbon monoxide adsorbent prepared from MOF (metal organic framework) material as carrier as well as preparation method and application of carbon monoxide adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of the carbon monoxide adsorbent with the metal organic framework material as the carrier of the present invention: at room temperature, take 0.05 mol of vanadium chloride and 0.05 mol of copper nitrate and fully mix and grind for more than 5 minutes to obtain the mixed material A; 0.1g of metal-organic framework MIL-101 was thoroughly mixed and ground for more than 15 minutes to obtain a mixture B; the mixture B was placed in an argon atmosphere and roasted at 250°C for 2 hours to obtain a metal loaded with monovalent copper ions and vanadium ions at the same time Organic framework materials.

[0024] The adsorption capacity of the test material for carbon monoxide: the adsorption capacity of the adsorbent prepared in Example 1 for carbon monoxide was tested using a physicochemical adsorption instrument ASAP 2020; wherein, the use condition of the adsorbent is 25°C and the pressure is 0-100kPa. After testing, the adsorption capacity of the adsorbent pre...

Embodiment 2

[0026] The preparation of the carbon monoxide adsorbent based on the metal-organic framework material of the present invention: at room temperature, take 0.125 mol of vanadium chloride and 0.05 mol of copper nitrate and mix thoroughly and grind for more than 5 minutes to obtain the mixed material A; 0.1 g of metal-organic framework MIL-101 was fully ground for more than 15 minutes to obtain a mixture B; the mixture B was placed in an argon atmosphere and roasted at 250°C for 2 hours to obtain a metal-organic framework loaded with monovalent copper ions and vanadium ions at the same time Material.

[0027] The adsorption capacity of the test material for carbon monoxide: the adsorption capacity of the adsorbent prepared in Example 2 for carbon monoxide was tested using a physicochemical adsorption instrument ASAP 2020; wherein, the use condition of the adsorbent is 25° C., and the pressure is 0-100 kPa. After testing, the adsorption capacity of the adsorbent prepared in Example...

Embodiment 3

[0029] The preparation of the carbon monoxide adsorbent with the metal organic framework material as the carrier of the present invention: at room temperature, take 0.25 mol of vanadium chloride and 0.25 mol of copper nitrate and fully grind them for more than 5 minutes to mix them uniformly to obtain the mixed material A; Add 0.1g of metal-organic framework MIL-101 and grind it for more than 15 minutes to mix the reaction materials evenly to obtain a mixture B; place the mixture B in an argon atmosphere at 250°C for 2 hours to obtain and vanadium ions in metal-organic frameworks.

[0030] The adsorption capacity of the test material for carbon monoxide: the adsorption capacity of the adsorbent prepared in Example 3 for carbon monoxide was tested using a physicochemical adsorption instrument ASAP 2020; wherein, the use condition of the adsorbent is 25°C and the pressure is 0-100kPa. After testing, the adsorption capacity of the adsorbent prepared in Example 3 to carbon monoxid...

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Abstract

The invention discloses a carbon monoxide adsorbent prepared from an MOF (metal organic framework) material as a carrier. The adsorbent adopts the MOF material as the carrier, then bivalent copper salt and trivalent vanadium salt are introduced onto the carrier material simultaneously, and the MOF material loaded with copper ions and vanadium ions simultaneously is obtained. The invention furtherdiscloses a preparation method of the carbon monoxide adsorbent and an application of the carbon monoxide adsorbent to adsorptive separation of carbon monoxide. According to the adsorbent, bivalent copper salt and trivalent vanadium salt are introduced into the MOF simultaneously, bivalent copper can be reduced into monovalent copper at a lower temperature lower than or equal to 250 DEG C on the basis of weak reduction property of trivalent vanadium salt, so that the MOF structure is retained in good condition, and the adsorbent is a Pi-complexation adsorption material with an undamaged structure and has good adsorption performance for carbon monoxide.

Description

technical field [0001] The invention relates to a carbon monoxide adsorbent with a metal-organic framework material as a carrier. The invention also relates to a preparation method of the carbon monoxide adsorbent and its application in adsorption and separation of carbon monoxide, belonging to the technical field of chemical materials. Background technique [0002] Carbon monoxide is one of the most important raw materials in the chemical industry and has a wide range of uses in chemical manufacturing. Carbon monoxide mainly comes from steam reforming, tail gas from steel plants and incomplete combustion of hydrocarbons, etc., but these gas sources are often accompanied by other gases such as carbon dioxide, hydrogen, methane and nitrogen, so carbon monoxide needs to be separated from these gases. [0003] At present, π-complex adsorption separation technology is regarded as one of the most promising methods. Based on the fact that the transition metal ion Cu(I) and carbon...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01D2253/204B01D2257/502B01J20/226
Inventor 文志豪殷俞袁爱华
Owner JIANGSU UNIV OF SCI & TECH
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