SO2 adsorbing material and preparation method thereof

An adsorption material, SO2 technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve problems such as unfavorable physical adsorption

Active Publication Date: 2020-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But MOFs contain metal oxides, adsorb SO 2 At the same time, it is easy to undergo chemical reactions, s

Method used

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  • SO2 adsorbing material and preparation method thereof
  • SO2 adsorbing material and preparation method thereof
  • SO2 adsorbing material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Based on MOF-5, the specific surface area is 1655 m 2 / g, the pore volume is 1.13 cm 3 / g, Zn content 31.2%. Doped with 1.0% histidine in the mass of MOF-5, carbonized at 1000°C for 6 hours in the presence of nitrogen to obtain SO 2 Adsorbent material. After testing, the specific surface area of ​​the prepared material is 2642 m 2 / g, the pore volume is 3.76 cm 3 / g, does not contain metal elements.

Embodiment 2

[0023] Based on MOF-5, the specific surface area is 1655 m 2 / g, the pore volume is 1.13 cm 3 / g, Zn content 31.2%. Doped with lysine accounting for 1.0% of the mass of MOF-5, carbonized at 1000°C for 6 hours in the presence of nitrogen to obtain SO 2 Adsorbent material. After testing, the specific surface area of ​​the prepared material is 2175 m 2 / g, the pore volume is 3.27 cm 3 / g, does not contain metal elements.

Embodiment 3

[0025] Based on MOF-5, the specific surface area is 1655 m 2 / g, the pore volume is 1.13 cm 3 / g, Zn content 31.2%. Doped with arginine accounting for 1.0% of the mass of MOF-5, carbonized at 1000°C for 6 hours in the presence of nitrogen to obtain SO 2 Adsorbent material. After testing, the specific surface area of ​​the prepared material is 2382 m 2 / g, the pore volume is 3.65 cm 3 / g, does not contain metal elements.

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Abstract

The invention relates to an SO2 adsorbing material and a preparation method thereof, and the SO2 adsorbing material is obtained by taking a zinc-based metal organic framework material as a matrix, doping a certain amount of amino acid and carbonizing at a certain temperature. The SO2 adsorbing material disclosed by the invention is prepared by adopting the method disclosed by the invention. The SO2 adsorbing material is obtained on the basis of a modified zinc-based metal organic framework material, has high SO2 adsorbing capacity and selectivity, and is particularly beneficial to efficient physical adsorption of SO2.

Description

technical field [0001] The invention belongs to the field of air pollution control, in particular to a SO 2 Adsorbent material and method for its preparation. Background technique [0002] SO 2 It is one of the main air pollutants and an important source of acid rain, SO 2 Emissions have produced a series of hazards to human life, health and industrial production. As early as in the "Tenth Five-Year Plan", SO 2 It has become one of the main pollutant discharge indicators that the country focuses on controlling emissions. [0003] At present, the widely used desulfurization technology can be divided into wet desulfurization technology and dry desulfurization technology. Dry desulfurization technology is mainly to absorb SO in the flue gas under the action of adsorption materials. 2 , to be desorbed after the adsorption is saturated, and can be further recycled. The activated carbon (coke) material widely used in industry has a high specific surface area and pore struct...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30B01D53/02
CPCB01J20/226B01J20/3085B01J20/3078B01D53/02B01D2253/204B01D2257/302B01D2258/0283Y02A50/20
Inventor 汪鹏赵磊刘忠生王学海王宽岭刘淑鹤
Owner CHINA PETROLEUM & CHEM CORP
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