Preparation method for novel gasoline sweetening adsorbent and application of novel gasoline sweetening adsorbent

A technology for sweetening and adsorbents, which is applied in the field of preparation of new gasoline sweetening adsorbents, can solve the problems of complex synthesis process, low sweetening rate, and unsatisfactory effect, and achieve simple process and high mercaptan removal rate , the effect of easy regeneration

Active Publication Date: 2013-01-30
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF2 Cites 50 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this catalyst is that a chelating agent is used in the synthesis process, the cost is high, the synthesis process is more complicated, and the mercaptan removal rate is low
[0005] Zeolite imidazole framework material (ZIFs for short) is a new type of material, which has the advantages of structural di

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
  • Preparation method for novel gasoline sweetening adsorbent and application of novel gasoline sweetening adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] The present embodiment provides a gasoline desulfurization adsorbent, which is prepared by the following steps:

[0035]Weigh 1.1g of zinc acetate and dissolve it in 80mL of deionized water, add 0.5g of COOH-SBA-15, ultrasonically disperse for 0.5h, then add 4.1g of 2-methylimidazole, mix well, stir and age in a water bath at 40°C for 1h, turn to Put it into a polytetrafluoroethylene-lined reaction kettle, crystallize at 140°C for 24h, suction filter, wash, and dry to obtain ZIF-8 / SBA-15 complex; wherein, the synthesis process of COOH-SBA-15 is as follows: Weigh 2.0 g of SBA-15 and disperse it in 120 mL of toluene, add 5.0 mL of trialkoxycyanoethylsilane, reflux at 100 °C for 12 h, cool to room temperature, filter with suction, wash with ethanol, and vacuum dry to obtain CN-SBA-15, then Weigh 1.0g CN-SBA-15 in 150mL H with a concentration of 48wt% 2 8O 4 In the solution, reflux at 100 °C for 4 h, wash with deionized water until neutral, and dry to ...

Example Embodiment

[0038] Example 2

[0039] The present embodiment provides a gasoline desulfurization adsorbent, which is prepared by the following steps:

[0040] Mix 50mL N,N-dimethylformamide (DMF) with 0.7g zinc nitrate, add 0.5g COOH-SBA-15 (the synthesis process is the same as in Example 1), ultrasonically disperse for 0.5h, then add 0.5g imidazole and 0.2g 2-Nitroimidazole was mixed uniformly, stirred and aged at 40 °C for 1 h, transferred to a polytetrafluoroethylene-lined reaction kettle, and solvothermally crystallized at 100 °C for 72 h. The crystallized product was filtered and washed. , vacuum drying to obtain ZIF-68 / SBA-15;

[0041] The ZIF-68 / SBA-15 composite was pressed into tablets, crushed and sieved to obtain particles with a particle size of 20-40 mesh, and dried at 120°C to finally obtain a gasoline desulfurizer adsorbent, which is denoted as Cat-3.

[0042] Activity Evaluation of Gasoline Dethiol Adsorbent

[0043] The gasoline desulfurization adsorbents prepared in Co...

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
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method for a novel gasoline sweetening adsorbent and an application of the novel gasoline sweetening adsorbent. The preparation method for the novel gasoline sweetening adsorbent comprises the following steps of: evenly mixing a solvent, a metal ion precursor with a mesoporous material; ageing; adding an organic ligand; performing hydrothermal crystallization treatment; then, performing suction filtration, washing and drying on a product produced after the hydrothermal crystallization treatment to obtain a zeolite imidazole framework material/mesoporous material compound; and performing preforming shaping and crushing screening on the zeolite imidazole framework material/mesoporous material compound to obtain the gasoline sweetening adsorbent. According to the zeolite imidazole framework material/mesoporous material compound provided by the invention, the specific surface area of a zeolite imidazole framework material is high, and meanwhile, zeolite imidazole framework material is highly dispersed on the mesoporous material, and thereby, the problem of diffusional limitation caused by agglomeration is effectively solved.

Description

technical field [0001] The invention relates to a preparation method and application of a novel gasoline sweetening adsorbent, belonging to the technical field of petroleum catalyst preparation. Background technique [0002] With the increasingly stringent environmental protection regulations, the demand for the production of clean fuels is becoming increasingly urgent. Due to the existence of a certain amount of mercaptans, light oil products such as gasoline have a foul smell. At the same time, mercaptans can promote the oxidation of unstable components in oil products, making their stability worse. In addition, when sulfur-containing substances burn at high temperatures Strong corrosive sulfur oxides are generated, which are discharged into the atmosphere to form acid rain and damage the ecological environment. Therefore, it is necessary to remove mercaptans in light oil products. [0003] The traditional method of removing mercaptans is alkali washing, but due to the pr...

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): B01J20/22B01J20/30C10G25/00
Inventor 范煜吴莉芳王世华李国旗石冈鲍晓军刘海燕
Owner CHINA UNIV OF PETROLEUM (BEIJING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap