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Fuel oil adsorption desulfurization adsorbent and method for preparing same

The technology of adsorbent and adsorbent carrier is applied in the field of fuel oil adsorption desulfurization adsorbent and its preparation, which can solve the problems of pore volume and wear intensity without detailed introduction, and achieve the effect of improving the adsorption sulfur capacity, high activity and small influence.

Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical and chemical properties of the adsorbent, especially the pore volume and wear strength, are not introduced in detail.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0021] In the preparation method provided by the present invention, the zinc oxide in the carrier is derived from the zinc oxide component introduced in the preparation process, and the zinc oxide component is one of zinc oxide and a zinc oxide precursor (precursor) or several, the zinc oxide precursor is one or more of the zinc-containing compounds that can be converted into zinc oxide under the preparation conditions, such as zinc sulfide, zinc sulfate, zinc hydroxide, zinc carbonate, zinc acetate and one or more of zinc nitrate; the zinc oxide is preferably powdered zinc oxide.

[0022] In the preparation method provided by the present invention, the alumina binder in the carrier is derived from the alumina binder component introduced during the preparation process, such as one or more of various alumina and alumina precursors . The alumina is preferably one or more of γ-alumina, η-alumina, θ-alumina and χ-alumina; the alumina precursor is preferably alumina sol with pseud...

Embodiment 1

[0031] 0.74 kilograms of expanded perlite (on a dry basis, produced by Celite), 0.61 kilograms of kaolin (on a dry basis, the product of China Kaolin Company) and 3.0 kilograms of acidic water (decationized water, pH value is 3) are mixed, Stir evenly to obtain a mixed slurry of expanded perlite and kaolin.

[0032] Get 0.75 kg of pseudo-boehmite (calculated as alumina, produced by Shandong Aluminum Plant) and add it to 4.3 kg of deionized water, stir evenly, add 200 ml of hydrochloric acid (chemically pure, produced by Beijing Chemical Plant) with a concentration of 30% by weight, Stir and acidify for 1 hour, then add the mixed slurry of the above-mentioned expanded perlite and kaolin, stir evenly, then add 2.9 kg of zinc oxide dry powder under stirring, stir for 1 hour, and spray dry to obtain microspheres. Calcined for 1 hour to obtain the adsorbent carrier.

[0033] Take 1.0 kg of the adsorbent carrier prepared above, mix it with 4 liters of 2.0 mol / L oxalic acid solution...

Embodiment 2

[0036] The adsorbent carrier was prepared according to the method of Example 1. Take 1.0 kg of the above-prepared adsorbent carrier and treat it three times with aqueous oxalic acid solution. The method for each treatment is: mix the carrier with 6 liters of oxalic acid solution with a concentration of 1.0 mol / L, stir at 50°C for 60 minutes, and then filter , and calcined at 450°C for 8 hours to obtain the treated adsorbent support. Then introduce nickel according to the method of embodiment 1, obtain adsorbent A2

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Abstract

The invention provides an adsorption desulfurization adsorbent and a method for preparing the same. The adsorbent comprises an aluminum oxide binder, a zinc oxide carrier and a metallic accelerant. The method for preparing the adsorbent comprises the following steps: firstly, preparing the carrier containing zinc oxide and the aluminum oxide binder; secondly, contacting the carrier with a solution of complexing agent; and thirdly, loading the metallic accelerant, wherein the complexing agent is selected from one or more matters capable of reacting with aluminum oxide to form soluble aluminum compounds. The method for preparing the adsorbent can increase the volume of the adsorbent holes, and the adsorbent can be used for the adsorption desulfurization of the fuel oil, and is high in activity and big in sulfur adsorption capacity.

Description

technical field [0001] The invention relates to a fuel oil adsorption desulfurization adsorbent and a preparation method thereof. Background technique [0002] The sulfur oxides produced by the combustion of sulfur in vehicle fuels will cause environmental pollution when discharged into the atmosphere, and will reduce the activity of the catalyst in the automobile exhaust catalytic converter, making it irreversibly poisoned, resulting in hydrocarbons and nitrogen in the automobile exhaust Oxide and carbon monoxide increase, and these emissions will be catalyzed by sunlight to form photochemical smog, causing acid rain. For this reason, the environmental protection regulations of various countries strictly limit the sulfur content in vehicle oil products. For example, my country's current gasoline product standard GB 17930-2006 "Auto Gasoline" stipulates that the sulfur content in gasoline must be reduced to 50ppm from December 31, 2009 the following. [0003] Gasoline in my...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/30C10G25/00
Inventor 林伟苏毅田辉平龙军朱玉霞徐莉张万虹郭瑶庆
Owner CHINA PETROLEUM & CHEM CORP
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