Unlock instant, AI-driven research and patent intelligence for your innovation.

Porous material, its preparation method and use

A technology of porous materials and dimethylformamide, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve problems such as high cost and low efficiency of removing thiophene sulfides , to achieve the effect of reducing production cost, simple and easy regeneration method, and good separation and adsorption effect

Inactive Publication Date: 2012-02-01
SHANGHAI HAIDI GARDENING
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the technical problems of low efficiency and high cost of removing thiophene sulfides in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Porous material, its preparation method and use
  • Porous material, its preparation method and use
  • Porous material, its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, porous material and preparation method thereof

[0029] 1. Take tribenzoic acid and Cu(NO 3 ) 2 ·3H 2 O, dissolved in ethanol solution of dimethylformamide

[0030] Take 1g tribenzoic acid and 2g Cu(NO 3 ) 2 ·3H 2 O for future use, mix dimethylformamide, ethanol and water in a volume ratio of 1:1:1 to obtain an ethanol solution of dimethylformamide, then tribenzoic acid and Cu(NO 3 ) 2 ·3H 2 O was dissolved in the ethanol solution of dimethylformamide of 51ml to obtain a mixed solution;

[0031] 2. Using the mixed solution obtained in step 1 to prepare a porous material

[0032] Take the mixed solution in step 1, keep it warm at 85°C for 20 hours, filter the precipitate, wash the precipitate, and then bake at 85°C for 4 hours to obtain the porous material.

[0033] The characterization of the porous material prepared in this embodiment is as follows:

[0034] (1) N at 77K 2 Adsorption isotherm

[0035] figure 1 The N of the porous material pr...

Embodiment 2

[0038] Embodiment 2, Utilize porous material to separate and adsorb thiophene sulfide

[0039] Get the porous material prepared in Example 1, select aromatic model oil and fat model oil to investigate the ability of porous material to adsorb and separate thiophene sulfide, and simultaneously select thiophene desulfurizer SBA-15 (Dai Wei, et al, Thiophene capture with complex adsorbentSBA-15 / Cu (1)[J].Ind.Eng.Chem.Res., 2006,45(23):7892-7896) as a comparison, during specific operation, the raw material is passed through the adsorption column filled with porous material, namely Can. image 3 For the adsorption result figure of the porous material prepared in embodiment 1 in fat model oil, according to image 3 The breakthrough curve in the figure shows that the breakthrough capacity and saturated adsorption capacity of the porous material in the fat model oil are 0.94wt% and 1.96wt%, which are higher than the 0.87wt% and 1.81wt% of SBA-15; Figure 4 For the adsorption result f...

Embodiment 3

[0040] Embodiment 3, regeneration of thiophene desulfurizer

[0041] Get the porous material (thiophene desulfurizer) adsorbed with thiophene sulfide in Example 2, use dehydrated alcohol to clean the porous material, obtain the filtrate, utilize gas chromatography hydrogen flame photometric detector to analyze the gained filtrate, according to the change of sulfur content in the washing liquid Determine whether to remove thiophene sulfur in the adsorbent.

[0042] Figure 5 It is the change figure of thiophene sulfide content in the filtrate in embodiment 3, as shown in the figure, along with the increase of ethanol consumption, the sulfur content in the filtrate declines, and along with the increase of ethanol consumption, the content of thiophene sulfide in the filtrate drops to 0, It means that the thiophene sulfide has been thoroughly washed away, and then the porous material is dried. The dried porous material was used again to separate and adsorb thiophene sulfide, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Pore volumeaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

Relating to the technical field of adsorbents, the invention relates to a porous material, its preparation method and use. The porous material can be prepared by: step 1. taking tribenzoate and Cu(NO3)2*3H2O and dissolving them in an ethanol solution of dimethyl formamide so as to obtain a mixed solution; step 2, keeping the mixed solution warm, conducting filtration so as to obtain a sediment, washing the sediment and stoving it, thus obtaining the porous material. The invention also relates to the preparation method of the porous material and its use in preparation of a thiophene desulfurizer. Simultaneously, the invention also relates to a method utilizing the porous material for adsorbing thiophene sulfides. The porous material of the invention has a good adsorption capacity for thiophene sulfides. Meanwhile, the porous material in the invention can regenerated and has a regeneration rate up to 97%. The regeneration method is easy and feasible, and only is absolute ethyl alcohol needed for flushing, thus being economical and high efficient.

Description

technical field [0001] The invention belongs to the technical field of adsorbents, and in particular relates to a porous material and its preparation method and application. Background technique [0002] Sulphide is one of the main pollution sources of the atmosphere and can also cause acid rain. At present, thiophene sulfide is a difficult sulfide to remove in desulfurization technology. The fuel oil desulfurization process mostly adopts the hydrogenation method, the total reaction pressure is about 3-8MPa, and the reaction temperature is 300-360°C. The process conditions are relatively harsh, resulting in high cost; The efficiency is not high, because the double bonds of aromatic hydrocarbons are more active than the double bonds of thiophene sulfides in the hydrogenation reaction, so they are preferentially saturated, which not only leads to increased hydrogen consumption, but also leads to the formation of by-products, reducing fuel consumption. nature. The high cost ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/04
Inventor 郭景鹏沙飞翔丁国才
Owner SHANGHAI HAIDI GARDENING