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A kind of gas desulfurization adsorption composition and its preparation method and desulfurization method of sulfur-containing gas

A composition and gas technology, applied in the field of sulfur-containing gas desulfurization, can solve the problems of low removal activity of sulfur-containing organic matter, insufficient sulfur adaptability, etc., and achieve the effects of easy industrialization, industrial application, and improved physical and chemical properties

Active Publication Date: 2017-07-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the desulfurizer has good mechanical strength compounding properties and can be applied to fixed bed, fluidized bed, and entrained bed desulfurization reactors, the desulfurizer has insufficient adaptability to sulfur in raw materials, and its activity for the removal of sulfur-containing organic matter slightly lower

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  • A kind of gas desulfurization adsorption composition and its preparation method and desulfurization method of sulfur-containing gas

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preparation example Construction

[0030] The present invention also provides a method for preparing a gas desulfurization adsorption composition, the method at least including the following steps:

[0031] (1) Mix and contact calcium oxysalt, zinc oxide source, at least one VB and / or VIB group metal oxide, at least one VA group metal oxide source and acidic liquid, and shape the obtained mixture , drying and roasting;

[0032] (2) Mixing and contacting the roasted product obtained in step (1) with at least one Group VIII metal oxide precursor to obtain an adsorbent precursor, and then roasting the adsorbent precursor.

[0033]According to the preparation method provided by the present invention, in step (1), a mixture of calcium oxo acid salt, zinc oxide source, VB and / or VIB group metal oxide and VA group metal oxide source is obtained. In the present invention, adding group VA metal oxides to the gas desulfurization adsorption composition can help improve the desulfurization effect of the gas desulfurizatio...

Embodiment 1

[0062] This example is used to illustrate the gas desulfurization adsorption composition and its preparation method of the present invention.

[0063] Mix 3.61 kg of zinc oxide powder (Headhorse Company, purity not less than 99.7% by weight), 1.22 kg of vanadium pentoxide (Sinopharm Chemical Reagent Company, purity not less than 98% by weight) and 4.50 kg of deionized water, and stir for 30 minutes A mixed slurry of zinc oxide and vanadium pentoxide was obtained.

[0064]Take 2.86 kg of calcium sulfate (Sinopharm Chemical Reagent Company, purity not less than 98% by weight), 1.84 kg of antimony trioxide (Sinopharm Chemical Reagent Company, purity not less than 98% by weight) and 5.5 kg of industrial acidic water (pH value is 4 ) were mixed under stirring, and stirring was continued for 1 hour for aging. Then a mixed slurry of zinc oxide and vanadium pentoxide was added and stirred for 0.5 hour to obtain a carrier slurry with a pH value of 4.9.

[0065] The carrier slurry use...

Embodiment 2

[0069] This example is used to illustrate the gas desulfurization adsorption composition and its preparation method of the present invention.

[0070] Mix 5.01 kg of zinc oxide powder (Headhorse Company, purity not less than 99.7% by weight), 0.61 kg of molybdenum oxide (Sinopharm Chemical Reagent Company, purity not less than 98% by weight) and 5.0 kg of deionized water, and stir for 30 minutes to obtain the oxide Mixed slurry of zinc and molybdenum oxide.

[0071] Take 2.04 kg of calcium sulfate (Sinopharm Chemical Reagent Company, purity not less than 98% by weight), 0.72 kg of antimony trichloride (Sinopharm Chemical Reagent Company, purity not less than 98% by weight) and 5.6 kg of acidic water are mixed under stirring, and Stirring was continued for 1 hour for aging. Then a mixed slurry of zinc oxide and molybdenum oxide was added and stirred for 0.5 hour to obtain a carrier slurry with a pH value of 5.1.

[0072] Referring to the method of Example 1, the carrier was s...

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Abstract

The invention discloses a gas desulfurization adsorption composition, a preparation method of the gas desulfurization adsorption composition and the prepared gas desulfurization adsorption composition, and a desulfurization method of sulfur-containing gas. The gas desulfurization adsorption composition contains at least one metal oxide of Group VA, zinc oxide, calcium oxysalt, at least one metal oxide of Group VB and / or VIB and at least one metal oxide of Group VIII. The gas desulfurization adsorption composition provided by the invention has higher desulfurization activity.

Description

technical field [0001] The invention relates to a gas desulfurization adsorption composition, a preparation method of the gas desulfurization adsorption composition, the gas desulfurization adsorption composition prepared by the method, and a method for using the gas desulfurization adsorption composition for sulfur-containing gas desulfurization. Background technique [0002] As people pay more and more attention to environmental protection, environmental laws and regulations are becoming stricter. In recent years, reducing sulfur emissions has been considered as one of the most important measures to improve air quality. On the one hand, the tail gas of many industrial devices, especially the flue gas of large coal-fired power plants, contains a large amount of sulfides, which must be removed to meet the emission requirements. On the other hand, natural gas produced from natural gas wells tends to have a relatively high sulfur content, often as high as 10 4 ppm, these nat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06B01J20/30B01D53/81B01D53/48
Inventor 范菁林伟王磊陈妍
Owner CHINA PETROLEUM & CHEM CORP