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Preparation method of ferrous metal organic framework material and application of ferrous metal organic framework material

A metal-organic framework and ferrous salt technology, applied in the fields of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problem of poor practicability, high cost, and resistance to sulfur-containing components Ability and other issues, to achieve the effect of enhanced applicability, weakened binding force, and strong anti-sulfur pollution performance

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material uses very expensive and rare scandium, yttrium, and lutetium as the central metal ion, which is not only expensive, but also has poor practicability; in addition, as a vehicle-mounted natural gas adsorption carrier, the material does not mention the resistance to sulfur-containing components

Method used

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  • Preparation method of ferrous metal organic framework material and application of ferrous metal organic framework material
  • Preparation method of ferrous metal organic framework material and application of ferrous metal organic framework material
  • Preparation method of ferrous metal organic framework material and application of ferrous metal organic framework material

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Embodiment 1

[0031] First weigh 1.39g FeSO 4 ·7H 2 O and 2.16g 2,6-naphthalene dicarboxylic acid were then dissolved in 18mL deionized water, followed by adding 4.5g tartaric acid and 1.8g acetic acid, and stirring for 2h at a speed of 700rpm / min on a magnetic constant temperature stirrer to obtain a precursor solution. Then put the precursor solution into a stainless steel autoclave lined with polytetrafluoroethylene, seal it and put it into a temperature-programmed furnace for hydrothermal reaction. Then the temperature was lowered from 160°C to room temperature at 1°C / min. The obtained precipitate was washed twice with deionized water, N,N-dimethylformamide and acetone respectively, and then centrifuged at 2000rpm / min for 20min, and the bottom product was filtered and moved to a blast drying oven. Dry at 100° C. for 5 hours to obtain the iron metal organic framework material A of the present invention.

Embodiment 2

[0033] Compared with Example 1, FeSO 4 ·7H 2 O was 4.17g, and other operating conditions and material composition were unchanged, and iron-containing metal-organic framework material B was obtained.

Embodiment 3

[0035] Compared with Example 1, FeSO 4 ·7H 2 O was 5.56g, and the other operating conditions and material composition were unchanged, and the iron-containing metal-organic framework material C was obtained.

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Abstract

The invention relates to a preparation method of a ferrous metal organic framework material. The preparation method comprises the following steps of dissolving ferrite and 2, 6-naphthalenedicarboxylic acid into deionized water; adding tartaric acid and acetic acid under a stirring condition; adding the obtained precursor solution into a stainless steel high-pressure reaction kettle for hydrothermal reaction to obtain precipitates, then washing the precipitates sequentially by deionzed water, N, N-dimethylformamide and acetone respectively; and centrifuging, filtering and drying so as to obtain the ferrous metal organic framework material. The invention also relates to the application of the ferrous metal organic framework material prepared by the method disclosed by the invention in adsorbing methane in natural gas. The ferrous metal organic framework material obtained by the method is large in specific surface area, is reasonable in pore volume distribution, is obviously intensified in the affinity with a methane molecule, and is relatively high in sulfur pollution resistance, the severity of the operation condition for selectively adsorbing methane from natural gas is further reduced, the flexibility of a small LNG device is greatly improved, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of coordination chemistry, and relates to a preparation method and application of a metal organic framework material, in particular to a preparation method and application of an iron-containing metal organic framework material. Background technique [0002] Natural gas liquefaction (LNG) technology is a hot spot in international research in recent years. With the continuous expansion of LNG application fields, small natural gas liquefaction devices can play their flexible and mobile characteristics in multiple places. For example, it can be used in the recovery of natural gas in marginal wells, the recovery of oil-associated gas and biogas, and the peak-shaving device of LNG vehicle supply station equipment. However, as a mixed gas, natural gas must be pretreated before liquefaction to remove harmful components, so as to prevent them from corroding equipment and freezing at low temperature to block valves and pipeline...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C10L3/10
CPCB01J20/223B01J20/28066B01J20/2808B01J20/3085B01J2220/4812C10L3/10
Inventor 赵亮王海洋王刚方向晨
Owner CHINA PETROLEUM & CHEM CORP
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