Preparation method and application of organic sulfur conversion catalyst

A catalyst and organosulfur technology, applied in the field of organosulfur conversion catalyst preparation, can solve the problems of many impurities, harsh reaction conditions, time-consuming, etc., and achieve the effects of mild reaction conditions, short reaction time, and simplified workload.

Active Publication Date: 2016-08-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of Cu-MOF catalyst by electrochemical method is simple and easy, does not require complex and expensive equipment, and the synthesis conditions are mild, the reaction is rapid, and the time is short; it solves the shortcomings of the traditional hydrothermal (solvothermal) method, which is time-consuming and harsh reaction conditions. , at the same time, because it will not introduce impurity metal salt anions, it also solves the problem of many impurities in the traditional method; and provides a new way for the removal of organic sulfur

Method used

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  • Preparation method and application of organic sulfur conversion catalyst
  • Preparation method and application of organic sulfur conversion catalyst
  • Preparation method and application of organic sulfur conversion catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 240 mL of 75% ethanol aqueous solution, 1.75 g of organic ligand H 3 BTC and 2.8 g of supporting electrolyte TBAP were added to the beaker, ultrasonicated for 10 min, and the ultrasonic power was 100 W to make them uniformly dispersed and dissolved; the metal Cu block (99.9998% purity) was used as an electrode, and the circuit was connected to ensure the distance between the two electrodes was 5 cm, and reacted for 3 h under the condition of circuit voltage of 15 V; the obtained product was washed with ethanol and water three times respectively, and dried at 100 °C for 24 h, followed by static vacuum at 120 °C After treatment for 12 h, the metal-organic framework material Cu-MOF (HKUST-1) was finally obtained.

Embodiment 2

[0027] 240 mL of 75% ethanol aqueous solution, 1.75 g of organic ligand H 3 BTC and 2.8 g of supporting electrolyte TBAP were added to the beaker, ultrasonicated for 10 min, and the ultrasonic power was 100 W, so that it was uniformly dispersed and dissolved;

[0028] Metal Cu block (purity: 99.9998%) was used as an electrode, and the circuit was connected to ensure that the distance between the two electrodes was 5 cm, and the reaction was performed under the condition of a circuit voltage of 20 V for 3 h. The obtained product was washed three times with ethanol and water respectively, dried at 100 °C for 24 h, and then treated under static vacuum conditions at 120 °C for 12 h, and the metal organic framework material Cu-MOF (HKUST-1 ).

Embodiment 3

[0030] 240 mL of 75% ethanol aqueous solution, 1.75 g of organic ligand H 3 BTC and 2.8 g of supporting electrolyte TBAP were added to the beaker, ultrasonicated for 10 min, and the ultrasonic power was 100 W, so that it was uniformly dispersed and dissolved;

[0031]A metal Cu block (purity of 99.9998%) was used as an electrode, and the circuit was connected to ensure that the distance between the two electrodes was 5 cm, and the reaction was performed under the condition of a circuit voltage of 25 V for 3 h. The obtained product was washed three times with ethanol and water respectively, dried at 100 °C for 24 h, and then treated under static vacuum conditions at 120 °C for 12 h, and the metal organic framework material Cu-MOF (HKUST-1 ).

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Abstract

The invention relates to a preparation method and application of an organic sulfur conversion catalyst. With use of an electrochemical synthesis method, metal ions dissolved through an anode and an organic ligand 1,3,5-benzenetricarboxylic acid in a solution are self-assembled to form a metal-organic framework material (MOF). The method can avoid introduction of metal salt anionic impurities, the synthesis conditions are mild, the reaction is rapid, and the consumed time is short. The preparation of the catalyst is simple and convenient and comprises the steps: taking a metal Cu elementary substance as an electrode, placing in an ethanol-water solution containing the 1,3,5-benzenetricarboxylic acid (H3BTC) organic ligand and a tetrabutylammonium perchlorate (TBAP) support electrolyte, communicating a circuit, carrying out an electrolytic reaction, and thus generating a pure Cu-MOF (HKUST-1) material. The prepared HKUST-1 has an octahedral structure, has the advantages of geometric symmetry, high utilization ratio and relatively high catalytic activity at a temperature of 150 DEG C, and is suitable for medium-low temperature catalytic hydrolysis of carbonyl sulfide gas.

Description

technical field [0001] The invention relates to a desulfurization catalyst and a preparation method thereof, in particular to a preparation method and application of an organic sulfur conversion catalyst. Background technique [0002] Carbonyl sulfide (COS) widely exists in chemical feedstock gas produced from coal, coke, residual oil and natural gas, etc., which 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 its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J37/34B01D53/86B01D53/48
CPCB01D53/8606B01D2255/20761B01D2257/308B01J31/1691B01J31/2239B01J37/348B01J2531/0238B01J2531/16
Inventor 江莉龙沈丽娟王高杰曹彦宁陈建军
Owner FUZHOU UNIV
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