Novel preparation method of Fe-MOF (ferrous-metal oxide framework) catalyst and application thereof in desulfurizing field

A catalyst, a new type of technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problems of short reaction time, decreased product quality, limited application, etc. To achieve the effect of simple preparation and less impurities

Inactive Publication Date: 2017-05-10
FUZHOU UNIV ASSET MANAGEMENT CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method has simple equipment, its reaction time is long, it needs to be carried out under a certain temperature and pressure, and metal salt anion impurities are introduced, which limits the application of this method; liquid phase diffusion method is easy to obtain high-quality crystals, but the reaction is v

Method used

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  • Novel preparation method of Fe-MOF (ferrous-metal oxide framework) catalyst and application thereof in desulfurizing field
  • Novel preparation method of Fe-MOF (ferrous-metal oxide framework) catalyst and application thereof in desulfurizing field
  • Novel preparation method of Fe-MOF (ferrous-metal oxide framework) catalyst and application thereof in desulfurizing field

Examples

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Example Embodiment

[0029] Example 1

[0030] The preparation of a FeBTC catalyst, the specific steps are:

[0031] Put 240mL of ethanol solution with a volume fraction of 66.7%, 1.75g ​​of organic ligand H 3 Add BTC and 2g supporting electrolyte TBAP into the beaker, ultrasonic for 10min, ultrasonic power of 100W, make it evenly dispersed and dissolved, and make an electrolyte solution;

[0032] A metal Fe rod (purity of 99.98%) is used as the anode, and a copper rod is used as the cathode. The anode, cathode and electrolyte solution are connected to form an electrolysis reaction circuit, ensuring that the distance between the anode and the cathode is 5cm, and the circuit voltage is 30V The reaction was carried out for 3h under the conditions of, and the obtained product was washed 3 times with ethanol and water respectively, and dried at 100℃ for 24h, and then treated at 120℃ under static vacuum condition for 12h, finally FeBTC catalyst was obtained.

Example Embodiment

[0033] Example 2

[0034] The preparation of a FeBTC catalyst, the specific steps are:

[0035] Put 240mL of 75% ethanol aqueous solution, 1.75g ​​organic ligand H 3 Add BTC and 2g supporting electrolyte TBAP into the beaker, ultrasonic for 10min, ultrasonic power of 100W, make it evenly dispersed and dissolved, and make an electrolyte solution;

[0036] A metal Fe rod (purity of 99.98%) is used as the anode, and a copper rod is used as the cathode. The anode, cathode and electrolyte solution are connected to form an electrolysis reaction circuit, ensuring that the distance between the anode and the cathode is 5cm, and the circuit voltage is 30V The reaction was carried out for 3h under the conditions of, and the obtained product was washed 3 times with ethanol and water respectively, and dried at 100℃ for 24h, and then treated at 120℃ under static vacuum condition for 12h, finally FeBTC catalyst was obtained.

Example Embodiment

[0037] Example 3

[0038] The preparation of a FeBTC catalyst, the specific steps are:

[0039] Mix 240 mL of 80% ethanol aqueous solution with 1.75 g of organic ligand H 3 Add BTC and 2g supporting electrolyte TBAP into the beaker, ultrasonic for 10min, ultrasonic power of 100W, make it evenly dispersed and dissolved, and make an electrolyte solution;

[0040] A metal Fe rod (purity of 99.98%) is used as the anode, and a copper rod is used as the cathode. The anode, cathode and electrolyte solution are connected to form an electrolysis reaction circuit, ensuring that the distance between the anode and the cathode is 5cm, and the circuit voltage is 30V The reaction was carried out for 3h under the conditions of, and the obtained product was washed 3 times with ethanol and water respectively, and dried at 100℃ for 24h, and then treated at 120℃ under static vacuum condition for 12h, finally FeBTC catalyst was obtained.

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Abstract

The invention discloses a novel preparation method of Fe-MOF (ferrous-metal oxide framework) and an application thereof in desulfurizing field. The preparation method comprises the following steps of adopting an electrochemical method, using a metal element of Fe (iron) as an anode, and using 66.7 to 80vol% ethanol solution as an organic solvent; using an anode dissolving method to enable the dissolved-out Fe3+ ion and the H3BTC in an electrolyte solution to generate coordination reaction, so as to generate a sample; washing and drying the sample, so as to obtain the FeBTC catalyst. The preparation method has the advantages that the mixing of anion ion impurities of metal salt is avoided, the prepared sample is pure, the synthesis condition is moderate, the reaction is quick, and the reaction time is short; the prepared Fe-MOF catalyst is applied into medium-low temperature hydrolysis reaction of carbonyl sulfide, the activity and stability are good, and a novel COS (carbon oxysulfide) hydrolysis catalyst is developed.

Description

technical field [0001] The invention relates to a preparation method and application of an Fe-MOF catalyst, in particular to a novel preparation method of the Fe-MOF catalyst and its application in desulfurization. Background technique [0002] Carbonyl sulfide (COS) widely exists in chemical feedstock gas produced from coal, coke, residual oil, and natural gas. It not only corrodes pipeline equipment, but also causes sulfur poisoning to catalysts in downstream processes, making them inactive. . Therefore, the removal of carbonyl sulfide is of great significance. In recent years, more and more attention has been paid to the removal of COS in various industrial gas streams by hydrolysis (the reaction formula is WGS, COS+H 2 O→CO 2 +H 2 S). The main component of traditional medium and low temperature COS hydrolysis catalysts is generally γ-Al 2 o 3 , which itself has a certain activity for hydrolysis reaction. By impregnating a certain amount of alkaline components on i...

Claims

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Application Information

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IPC IPC(8): B01J31/28B01D53/86B01D53/48
CPCB01J31/28B01D53/8603B01D2257/308B01J31/1691
Inventor 江莉龙沈丽娟王高杰曹彦宁
Owner FUZHOU UNIV ASSET MANAGEMENT CO LTD
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