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Zirconic desulphurization adsorbent, preparation method and application thereof

An adsorbent and content technology, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve the problems of small pore volume of the adsorbent, reduced activity of the adsorbent, and reduced desulfurization activity, etc., to achieve large pore volume, The effect of high activity stability and high activity stability

Active Publication Date: 2011-07-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In these adsorbent preparation methods, the strength of the adsorbent is improved by adding clay, but since the clay itself has no pores, it is easy to make the pore volume of the adsorbent smaller and reduce the activity of the adsorbent.
At the same time, alumina binder is used, and zinc aluminate is formed during the preparation process, thereby reducing its desulfurization activity

Method used

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  • Zirconic desulphurization adsorbent, preparation method and application thereof
  • Zirconic desulphurization adsorbent, preparation method and application thereof
  • Zirconic desulphurization adsorbent, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 2.68 kilograms of zirconium tetrachloride (Beijing Chemical Plant, analytically pure, 99%) are slowly added to 3.1 kilograms of 5% nitric acid solution, and slowly stirred to avoid the precipitation of zirconia crystals to obtain a colorless and transparent colloidal solution called Zirconium sol.

[0058] 5.55 kg of zinc oxide powder (produced by Beijing Chemical Plant, containing 5.38 kg on a dry basis) and 10.8 kg of deionized water were mixed, and after stirring for 30 minutes, a zinc oxide slurry was obtained; 2.11 kg of muscovite (containing a dry basis) were added to the zinc oxide slurry. 1.84 kg), and stirred for 15 minutes. Then the above zirconium sol was added, mixed and then stirred for 1 hour to obtain a carrier mixture slurry.

[0059] The carrier slurry uses Niro Bowen Nozzle Tower TM The model spray dryer is used for spray drying, the spray drying pressure is 8.5 to 9.5MPa, the inlet temperature is below 500°C, and the outlet temperature is about 150°...

Embodiment 2

[0063] 1.57 kg of zirconium oxychloride (Aldrich company, analytically pure, 98.5%) was slowly added to 3.2 kg of 15% hydrochloric acid (chemically pure, produced by Beijing Chemical Plant) solution under stirring and stirred for 1 hour, and the solution It is a light yellow transparent colloidal solution called zirconium sol.

[0064] 4.88 kilograms of zinc oxide powder (produced by Beijing Chemical Plant, containing 4.73 kilograms on a dry basis) and 3.01 kilograms of muscovite (containing 2.62 kilograms on a dry basis) were added to 10.8 kilograms of deionized water, and stirred and mixed for 30 minutes. Then add the above-mentioned zirconium sol , mixed and then stirred for 1 hour to obtain a carrier mixture slurry.

[0065] Referring to the method of Example 1, the carrier was spray-dried and molded and the active component nickel was introduced to obtain the adsorbent A2. The main chemical composition of the adsorbent A2 is: the content of zinc oxide is 47.3wt%, the con...

Embodiment 3

[0067] 1.83 kg of zirconium hydroxide (Aldrich company, analytically pure, 99%) was added to 3.1 kg of 30% hydrochloric acid (chemically pure, produced by Beijing Chemical Plant) and stirred and acidified for 1 hour, and now a transparent colloidal solution was obtained, weighing For zirconium sol.

[0068]5.55 kg of zinc oxide powder (produced by Beijing Chemical Plant, containing 5.38 kg on a dry basis) and 1.38 kg of muscovite (containing 1.20 kg on a dry basis) and 0.67 kg of expanded perlite (containing 0.64 kg on a dry basis) were added to 10.8 kg of deionized water, and stir to mix for 30 minutes. Then the above zirconium sol was added, mixed and then stirred for 1 hour to obtain a carrier mixture slurry.

[0069] Referring to the method of Example 1, the carrier was spray-dried and molded and the active component nickel was introduced to obtain the adsorbent A3. The main chemical composition of adsorbent A3 is: zinc oxide content is 53.8wt%, and the content of zircon...

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Abstract

The invention relates to an adsorbent which is used for removing sulfur from being cracked gasoline and diesel engine fuel. The adsorbent comprises the following components: (1) silicon oxide source containing at lease mica; (2) zirconium dioxide binder; (3) oxides of one or more metals selected from groups IIB, VB and VIB; (4) at least one promoter metal selected from cobalt, iron and manganese.The adsorbent has good wear resistance and good desulphurization activity, and can be used for removing elemental sulfur and sulfide from being cracked gasoline and diesel oil fuel, such as hydrogen sulfide and organic sulfur compound.

Description

technical field [0001] The invention relates to an adsorbent for desulfurization from liquid raw materials of cracked gasoline and diesel fuel, its preparation method and application. Background technique [0002] As people pay more and more attention to environmental protection, environmental regulations are becoming stricter, and reducing the sulfur content of gasoline and diesel is considered to be one of the most important measures to improve air quality, because sulfur in fuel will affect the performance of automotive catalytic converters produce adverse effects. Sulfur oxides present in automobile engine exhaust can inhibit and irreversibly poison precious metal catalysts in converters. Exhaust gases from inefficient or poisoned converters contain unburned non-methane hydrocarbons and oxides of nitrogen and carbon monoxide, which are catalyzed by sunlight to form photochemical smog. [0003] Most of the sulfur in gasoline in my country comes from thermally processed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/30
Inventor 林伟田辉平朱玉霞王磊王振波李峥郭晓峰
Owner CHINA PETROLEUM & CHEM CORP
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