Cuprous modified metal organic skeleton adsorbent, preparation method and application

A metal-organic framework and adsorbent technology, applied in the field of adsorbent, monovalent copper-modified metal-organic framework adsorbent, and preparation, can solve the problems that metal-organic frameworks cannot withstand high-temperature self-reduction of divalent copper, and the steps are cumbersome, and achieve Easy to control, simple steps, high reduction effect

Inactive Publication Date: 2014-04-30
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current technology, the acquisition of monovalent copper on the adsorbent generally requires heat treatment of divalent copper salt to convert copper oxide, and then undergoes high-temperature self-reduction (>700°C) to obtain (Tian, ​​W.-H.; Sun, L.-B.;Song,X.-L.;Liu,X.-Q.;Yin,Y.;He,G.-S.Langmuir2010,26,17398.), while MOFs cannot bear divalent The temperature of copper self-reduction at high temperature, and the heat treatment of divalent copper salt into copper oxide, and the step of further reducing copper oxide to cuprous oxide is relatively cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of adsorbent: Weigh 0.5g of copper sulfate and dissolve it in 10mL of deionized water. After it is fully dissolved, weigh 0.5g of carrier MIL-53 and place it in the above solution. The obtained sample was placed in a reaction kettle isolated from 2 mL of formic acid, placed in an oven at 150° C. for 10 h, and after cooling, a metal-organic framework adsorbent loaded with cuprous oxide was obtained.

[0023] Desulfurization experiment: The desulfurization performance of the adsorbent was determined by dynamic adsorption method. Take 0.1 g of the above-mentioned adsorbent and place it in a glass column, pass through the model oil with a sulfur content of 500 ppm at a rate of 3 mL / h, and adsorb at room temperature, and use Varian chromatography VARIANCP-3800 to analyze the sulfur content of the model gasoline after adsorption. The breakthrough capacity of the agent is 0.05mmol / g, and the saturated adsorption capacity is 0.11mmol / g.

Embodiment 2

[0025] Preparation of adsorbent: Weigh 0.5g of copper acetate and dissolve it in 10mL of deionized water. After it is fully dissolved, weigh 0.5g of carrier MIL-53 and place it in the above solution. After stirring for a certain period of time, filter and dry, take 0.2g of the above The obtained sample was placed in a reaction kettle isolated from 2 mL of formic acid, placed in an oven at 150° C. for 10 h, and after cooling, a metal-organic framework adsorbent loaded with cuprous oxide was obtained.

[0026] Desulfurization experiment: The desulfurization performance of the adsorbent was determined by dynamic adsorption method. Take 0.1 g of the above-mentioned adsorbent and place it in a glass column, pass through the model oil with a sulfur content of 500 ppm at a rate of 3 mL / h, and adsorb at room temperature, and use Varian chromatography VARIANCP-3800 to analyze the sulfur content of the model gasoline after adsorption. The penetration capacity of the agent is 0.05mmol / g,...

Embodiment 3

[0028] Preparation of adsorbent: Weigh 0.5g of copper nitrate and dissolve it in 10mL of deionized water. After it is fully dissolved, weigh 0.5g of carrier MIL-53 and place it in the above solution. The obtained sample was placed in a reaction kettle isolated from 2 mL of formic acid, placed in an oven at 150° C. for 10 h, and after cooling, a metal-organic framework adsorbent loaded with cuprous oxide was obtained.

[0029] Desulfurization experiment: The desulfurization performance of the adsorbent was determined by dynamic adsorption method. Take 0.1 g of the above-mentioned adsorbent and place it in a glass column, pass through the model oil with a sulfur content of 500 ppm at a rate of 3 mL / h, and adsorb at room temperature, and use Varian chromatography VARIANCP-3800 to analyze the sulfur content of the model gasoline after adsorption. The penetration capacity of the agent is 0.05mmol / g, and the saturated adsorption capacity is 0.12mmol / g.

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Abstract

The invention discloses cuprous modified metal organic skeleton absorbent, a preparation method and application, belonging to the technical field of fuel oil processing. The absorbent can effectively adsorb sulfide in gasoline. The cuprous modified metal organic skeleton absorbent adopts a metal organic skeleton as a carrier, a cupric precursor is reduced by adopting a reducing agent through a vapor induction reduction method to prepare the metal organic skeleton adsorbent which is loaded with monovalent copper, and the cuprous content is 0.1 to 1mmol/g.

Description

technical field [0001] The invention relates to an adsorbent, a preparation method and an application, and more specifically relates to a monovalent copper-modified metal-organic framework adsorbent, a preparation method and an application thereof, and belongs to the technical field of fuel oil processing. Background technique [0002] About 80% of gasoline in my country comes from catalytic cracking gasoline, and the sulfur in catalytic cracking gasoline mainly exists in the form of thiophene and its derivatives. At present, the main method to reduce the sulfur content in fuel oil is hydrofining, but this method not only requires a large investment in process equipment and high operating costs, but also reduces the octane number of gasoline. Due to the low investment cost and low energy consumption of adsorption technology equipment, it is considered to be a promising method, and the key to desulfurization is to develop adsorbents that are easy to prepare and have good adso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C10G25/00
Inventor 刘晓勤孙林兵黄春玲刘定华
Owner NANJING UNIV OF TECH
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