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A kind of hybrid organic framework material loaded with rare earth and its preparation method and application

A metal-organic framework and hybridization technology, which is applied in chemical instruments and methods, refined hydrocarbon oil, and other chemical processes, can solve the problems of limited service life of materials, unassisted desulfurization application technology, and high development costs, and achieve offset space position Resistant effect, enhanced desulfurization effect, strong thermal stability effect

Active Publication Date: 2019-08-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development cost of imidazole metal-organic framework materials is very high, and its ligand methylimidazole is corrosive and expensive, so it is not conducive to product promotion and application
In addition, the zeolite imidazole framework material falls off during the regeneration process, resulting in a limited service life of the material; moreover, the adsorbent is developed for the mercaptan components in gasoline, and its scope of application is limited, which is not helpful for the increasingly inferior gasoline and diesel desulfurization applications technology

Method used

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  • A kind of hybrid organic framework material loaded with rare earth and its preparation method and application
  • A kind of hybrid organic framework material loaded with rare earth and its preparation method and application
  • A kind of hybrid organic framework material loaded with rare earth and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of hybrid metal-organic framework materials a

[0046] Weigh 5gCu(NO 3 ) 2 ·3H 2 O. Add 3g of 1,4,5,8-naphthalene tetracarboxylic acid into 2000g of acetone aqueous solution, the volume ratio of acetone and water is 1:2, the pH after mixing is 0.73, and put it in an ultrasonic oscillator after airtight, adjust the ultrasonic The frequency is 100KHz, the ultrasonic power is 450W, and it is ultrasonically oscillated at room temperature until a sky blue precipitate appears. Add dropwise an aqueous solution containing 0.27 g of soluble starch in mass concentration, wherein the concentration of soluble starch is 25 wt %, keep the ultrasonic conditions unchanged, and continue ultrasonication for 35 min. The obtained mixed solution is suction-filtered, and the filter cake is put into an aqueous acetone solution containing ammonium chloride. The mass ratio of the filter cake to ammonium chloride is 1:1, and the ratio of ammonium chloride to acetone is 1g:120m...

Embodiment 2

[0050] The method and raw material are basically the same as in Example 1, except that the copper source is replaced by CuSO 4 ·5H 2 O, other reaction conditions and material composition remain unchanged, and the CeO 2 The hybrid metal-organic framework B.

Embodiment 3

[0052] The method and raw materials of Example 1 are basically the same, the difference is that the volume ratio of acetone and water in the solvent is increased to 1:10, and other reaction conditions and material composition are unchanged, and the CeO is loaded 2 The hybrid metal-organic framework C.

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Abstract

The invention discloses a rare earth-supporting hybrid metal organic skeleton material preparation method, which comprises: (1) adding 1,4,5,8-naphthalene tetracarboxylic acid and a copper source into a solvent, mixing uniformly, carrying out first ultrasonic treatment, adding a soluble starch aqueous solution when a precipitate appears, and continuously carrying out second ultrasonic treatment; (2) filtering the obtained mixture, placing the solid obtained through the filtering into an acetone aqueous solution containing an ammonium salt, stirring, filtering, carrying out water washing, and drying to obtain a hybrid metal organic skeleton material; and (3) loading a rare earth metal inorganic salt onto the metal organic skeleton material so as to obtain the rare earth-supporting hybrid metal organic skeleton material. According to the present invention, the hybrid metal organic skeleton material prepared through the method has characteristics of strong thermal stability, suitable pore structure, more activity sites and good spatial symmetry, and can be used for the adsorption and desulfurization process of gasoline, diesel oil, and other fuel oils.

Description

technical field [0001] The invention relates to a rare earth-loaded hybrid metal organic framework material and its preparation method application, in particular to a rare earth-loaded organic framework material which can be used for fuel oil adsorption, its preparation method and application. Background technique [0002] With the world's increasing emphasis on environmental protection and the increasingly stringent environmental regulations, the production of low-sulfur and ultra-low-sulfur fuel oil is gradually attracting people's attention. The main forms of sulfide in fuels are mercaptans, sulfides, disulfides and thiophene organic sulfides, especially the thiophenes have a large content and are difficult to remove. Although traditional hydrodesulfurization can effectively remove sulfides such as thiophenes, there are disadvantages such as loss of octane number, high equipment investment and operating costs, so other low-cost fuel oil deep desulfurization technologies a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C10G25/00
Inventor 赵亮王刚方向晨
Owner CHINA PETROLEUM & CHEM CORP
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