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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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  • Summary
  • Abstract
  • 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 very difficult. Time-consuming, and require reactants to have good solubility at room temperature; microwave radiation synthesis method can promote the nucleation rate and crystal growth rate of MOF, the reaction time is short, but once the optimal reaction time is exceeded, the quality of the obtained product will decline

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

Experimental program
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Effect test

Embodiment 1

[0030] A kind of preparation of FeBTC catalyst, concrete steps are:

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

[0032] Metal Fe rod (purity is 99.98%) is used as anode, adopts copper rod as cathode, described anode, cathode and electrolytic solution are connected into electrolytic reaction circuit, guarantees that the distance between anode and cathode is 5cm, and the circuit voltage is 30V The resulting product was washed with ethanol and water for 3 times, dried at 100°C for 24h, and then treated under static vacuum at 120°C for 12h to obtain the FeBTC catalyst.

Embodiment 2

[0034] A kind of preparation of FeBTC catalyst, concrete steps are:

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

[0036] Metal Fe rod (purity is 99.98%) is used as anode, adopts copper rod as cathode, described anode, cathode and electrolytic solution are connected into electrolytic reaction circuit, guarantees that the distance between anode and cathode is 5cm, and the circuit voltage is 30V The resulting product was washed with ethanol and water for 3 times, dried at 100°C for 24h, and then treated under static vacuum at 120°C for 12h to obtain the FeBTC catalyst.

Embodiment 3

[0038] A kind of preparation of FeBTC catalyst, concrete steps are:

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

[0040] Metal Fe rod (purity is 99.98%) is used as anode, adopts copper rod as cathode, described anode, cathode and electrolytic solution are connected into electrolytic reaction circuit, guarantees that the distance between anode and cathode is 5cm, and the circuit voltage is 30V The resulting product was washed with ethanol and water for 3 times, dried at 100°C for 24h, and then treated under static vacuum at 120°C for 12h to obtain the FeBTC catalyst.

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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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