Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for removing thiophene-type sulfide in fuel oil by using Pd (II)-SiO<2> composite aerogel as adsorbent

A technology of composite airgel and adsorbent, which is applied in the petroleum industry, processing hydrocarbon oil, refining hydrocarbon oil, etc. It can solve the problems of providing active sites, low sulfur removal rate, and inability to effectively remove multiple sulfides at the same time , to achieve good adsorption performance

Inactive Publication Date: 2018-12-07
ZHEJIANG UNIV OF TECH
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN 104549143 A adopts metal salts such as Al, Zn, Ni and H 3 PO 4 As an auxiliary agent to modify activated carbon, it can better solve the problem that a single adsorbent cannot effectively remove multiple sulfides at the same time, the low removal rate of sulfur and the sulfur penetration capacity of desulfurizer in the gas raw material adsorption purification desulfurization technology low level problem
However, in the preparation process of the above-mentioned adsorbents with metal oxides as the carrier, metal ions are easy to block the pores of the metal oxides, resulting in the accumulation of the loaded active components on the surface, which cannot enter the pores to provide active sites, and reduce the adsorption and desulfurization performance. Difficult to apply to industrial production

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
  • Method for removing thiophene-type sulfide in fuel oil by using Pd (II)-SiO&lt;2&gt; composite aerogel as adsorbent
  • Method for removing thiophene-type sulfide in fuel oil by using Pd (II)-SiO&lt;2&gt; composite aerogel as adsorbent
  • Method for removing thiophene-type sulfide in fuel oil by using Pd (II)-SiO&lt;2&gt; composite aerogel as adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0026] Embodiment 1~5: Pd(II)-SiO of different silicon sources and palladium sources 2 Adsorption Performance of Composite Airgel on Thiophene Sulfides in Simulated Gasoline

[0027] Pd(Ⅱ)-SiO with a silicon-palladium molar ratio of 320 prepared by the sol-gel method 2 In the composite airgel adsorbent, the silicon sources used include methyl orthosilicate, ethyl orthosilicate, and silica sol, and the palladium sources include palladium sulfate and palladium chloride. The prepared Pd(Ⅱ)-SiO 2 The composite aerogel was subjected to the penetration adsorption desulfurization experiment, and the specific operation was as follows: an appropriate amount of absorbent cotton was filled in the bottom layer of the fixed bed adsorption device, and then 1 g of Pd(Ⅱ)-SiO 2 Composite airgel with appropriate amount of quartz sand. Before the adsorption experiment started, the packed adsorbent was fully wetted with n-heptane. Inject simulated gasoline (1mgS / g) at 25°C with a space velocity...

Embodiment 6~10

[0033] Embodiment 6~10: Pd(II)-SiO with different silicon-palladium molar ratios 2 Adsorption Performance of Composite Airgel on Thiophene Sulfides in Simulated Gasoline

[0034] Select Pd(II)-SiO with silicon-palladium molar ratios of 1300, 640, 320, 160 and 110 respectively 2 Airgel, other conditions are the same as the Pd(Ⅱ)-SiO prepared in Example 2 2 Composite airgel, through adsorption experiments on thiophene sulfides in simulated gasoline. The operation of the breakthrough adsorption experiment is the same as in Examples 1-5, and the adsorption results are shown in Table 3.

[0035] Table 3 Pd(Ⅱ)-SiO with different molar ratios of silicon to palladium 2 Adsorption Performance of Composite Airgel on Thiophene Sulfides in Simulated Gasoline

[0036]

[0037] As can be seen from Table 3, Pd(Ⅱ)-SiO 2 As the molar ratio of silicon to palladium decreases, that is, the content of palladium increases, the breakthrough adsorption capacity of thiophene and benzothiophene...

Embodiment example 11~15

[0038] Implementation Cases 11~15: Effect of different simulated gasoline injection space velocities on Pd(Ⅱ)-SiO 2 Adsorption Performance of Composite Airgel on Thiophene Sulfides in Simulated Gasoline

[0039] Use Pd(II)-SiO with a silicon-palladium molar ratio of 320 2 Composite airgel adsorbent. at an airspeed of 1 h -1 、2h -1 、4h -1 、6h -1 , 8 hours -1 Next, the breakthrough adsorption experiment was carried out on thiophene sulfides in simulated gasoline. The operation of the breakthrough adsorption experiment is the same as in Examples 1-5, and the adsorption results are shown in Table 4.

[0040] Table 4 Pd(Ⅱ)-SiO at different space velocities 2 Adsorption Performance of Composite Airgel on Thiophene Sulfides in Simulated Gasoline

[0041]

[0042] It can be seen from Table 4 that with the increase of the simulated gasoline injection space velocity, the breakthrough adsorption capacity of thiophene and benzothiophene will gradually decrease. When the space ...

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
Breakthrough adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for removing thiophene-type sulfide in fuel oil by using Pd (II)-SiO<2> composite aerogel as an adsorbent. The Pd (II)-SiO<2> composite aerogel as the adsorbent is filled in a fixed bed adsorption device; and at an adsorption temperature of 0-100 DEG C, simulated gasoline containing the thiophene-type sulfide is introduced at an air velocity of 1 to 10 h<-1>, and the simulated gasoline having a sulfur concentration of 1 ppm or less is obtained through adsorption. The Pd(II)-SiO<2> composite aerogel introduces Pd(II) into a silicon skeleton structure, the Pd(II)is relatively stable, and because the added volume is relatively low, the preparation cost of the Pd(II)-SiO<2> composite aerogel is low; and through adoption of absorbent, an adsorption reaction isperformed under normal pressure, an adsorption condition is mild, requirements for adsorption equipment are low, operation is convenient, and the sulfur concentration of the thiophene-type sulfide inthe simulated gasoline can reach 1 ppm or less after adsorption.

Description

technical field [0001] The invention belongs to the technical field of fuel oil desulfurization, in particular to a Pd(II)-SiO 2 Composite airgel is a method for adsorbent to remove thiophene sulfides in fuel oil. Background technique [0002] With the vigorous development of the automobile industry, the large amount of sulfide emissions from automobile exhaust not only makes environmental pollution more and more serious, but also threatens human health. Fuel cells also have very high requirements on the sulfur content in fuel oil. The presence of organic sulfides will poison the catalyst in the electrodes of the fuel cell, making the fuel cell unable to effectively convert the chemical energy in the fuel into electrical energy. Therefore, the deep desulfurization of fuel oil has become the focus of global attention. [0003] At present, the desulfurization technology of fuel oil mainly includes hydrodesulfurization technology, alkylation desulfurization technology, biolog...

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): C10G25/00
CPCC10G25/003C10G2300/202C10G2400/02
Inventor 刘少博张波周金兵陈飞帆卢永康潘飞苗蔡伟豪
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com