Normal temperature compound desulfuration and dearsenization agent

A technology for desulfurization and arsenic removal and carrier, which is applied in the fields of metal oxide refining, petroleum industry, and refined hydrocarbon oil, etc. Tolerance and other issues

Active Publication Date: 2013-10-16
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the sulfur capacity and arsenic capacity of the desulfurization and arsenic removal agent in the prior art are relatively low, and the desulfurization and arsenic removal efficiency is not high, especially it cannot be applied to the desulfurization and dearsenization pretreatment of light hydrocarbons containing alkynes; On this basis, a desulfurization and arsenic removal agent with high sulfur and arsenic capacity, a desulfurization and arsenic removal rate as high as 99%, and applicable to any light hydrocarbon desulfurization and arsenic pretreatment is provided

Method used

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  • Normal temperature compound desulfuration and dearsenization agent
  • Normal temperature compound desulfuration and dearsenization agent

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Choose 80 mesh, specific surface area is 300m 2 / g, the pore volume is 10cm 3 / g microspheres γ-Al 2 o 3 Carrier 9.9g is put into the lead acetate solution (Pb(Ac) of 1000ml 0.179mol / L 2 ·3H 2 (2) in, immerse 3 hours and make active lead acetate solution fully enter microsphere carrier inside; Because the amount of impregnating liquid is selected according to the absorption rate of carrier to active component, so described active component impregnating liquid can one-time immerse Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating solution is completely immersed in the carrier, the carrier is taken out and dried at 100°C for 5 hours to remove the moisture in the carrier; then the dried γ-Al loaded with lead acetate 2 o 3 The carrier is activated by roasting at 400°C for 10 hours under aerobic conditions, so that the lead acetate solution is decomposed, and then the γ-Al loaded with PbO active components is obtained. 2 ...

Embodiment 2

[0044] Select 60 mesh, specific surface area is 20m 2 / g, the pore volume is 0.1cm 3 / g microspheres γ-Al 2 o 3 Carrier 9.9g is put into the lead acetate solution (Pb(Ac) of 10ml 0.04mol / L 2 ·3H 2 (2) in, immerse 1 hour and make active lead acetate solution fully enter the inside of microsphere carrier; Because the amount of soaking liquid is calculated and selected according to the absorption rate of carrier to active component, so described active component soaking liquid can one-time immerse Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating solution is completely immersed in the carrier, the carrier is taken out and dried at 120°C for 1 hour under aerobic conditions to remove the moisture in the carrier; then the dried γ-Al loaded with lead acetate 2 o 3 The carrier is activated by roasting at 650°C for 5 hours under aerobic conditions to decompose lead acetate, and then obtain γ-Al loaded with PbO active components 2 o ...

Embodiment 3

[0048] Select 120 mesh, specific surface area is 350m 2 / g, the pore volume is 20cm 3 3g of activated carbon / g is put into 100ml 0.897mol / L lead acetate solution (Pb(Ac) 2 ·3H 2 (2), immerse 2.5 hours to make the active lead acetate solution fully enter the inside of the microsphere carrier; because the amount of the impregnating liquid is selected according to the absorption rate of the carrier to the active component, so the active component impregnating liquid can be immersed in one time. Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating liquid is completely immersed in the carrier, take out the carrier and dry it at 110°C for 2.5 hours to remove the moisture in the carrier; then roast the dried activated carbon loaded with lead acetate under aerobic conditions at 500°C After 8 hours of activation, the lead acetate is decomposed, and then an activated carbon carrier loaded with PbO active components is obtained. In the above...

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Abstract

The invention relates to a desulfuration and dearsenization agent, which comprises a carrier and active components; wherein, the carrier can be formed by a single carrier, or by two or more carriers, and the carrier accounts for 10-80wt% of the total weight of the desulfuration and dearsenization agent; the active components comprises 0.1-40wt% of lead oxide and 0.1-60wt% of magnetic Fe21.333O32. The invention further discloses a preparation method of the desulfuration and dearsenization agent. The desulfuration and dearsenization agent prepared by the invention has high sulfur capacity and arsenic capacity with desulfuration and dearsenization rate being higher than 99%, and is applicable to the desulfuration and dearsenization pretreatment of light dydrocarbon, especially to the desulfuration and dearsenization pretreatment of the light dydrocarbon containing alkyne.

Description

technical field [0001] The invention relates to a purification agent which can be used for desulfurization and arsenic removal in light hydrocarbons at normal temperature, and belongs to the technical field of chemical adsorption purification. Background technique [0002] As we all know, petroleum contains a variety of metal impurities and non-metal impurities, such as iron, nickel, vanadium, copper, lead, sulfur, nitrogen, arsenic and so on. In the process of oil processing and refining, most of the impurities can basically be removed to reduce the impurity content to a certain level, but the trace impurities remaining in the processed oil still inevitably affect the quality of the oil. For example, after cracking (catalytic cracking, catalytic cracking, visbreaking and coking) treatment of heavy petroleum fractions, the produced light hydrocarbons (light fractions) still contain a lot of sulfur-containing compounds and arsenic-containing compounds; The most common sulfur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G25/00C10G29/16
Inventor 杜文庆刘振义
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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