Sulfur wetting agent for wet chelated iron desulfurization and preparation and use method thereof

A wetting agent, chelated iron technology, applied in chemical instruments and methods, separation methods, disperse particle separation and other directions, can solve the problem of APEO product use restrictions and other problems, achieve low cost, wide source, good biodegradability effect

Active Publication Date: 2020-04-24
浙江佳运能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2003, the European Union promulgated Directive 2003 / 53 / EC, which stipulated that from January 17, 2003, except for specific circumstances, the use of APEO products was strictly restricted.

Method used

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  • Sulfur wetting agent for wet chelated iron desulfurization and preparation and use method thereof
  • Sulfur wetting agent for wet chelated iron desulfurization and preparation and use method thereof
  • Sulfur wetting agent for wet chelated iron desulfurization and preparation and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] The preparation method of above-mentioned sulfur wetting agent, see figure 1 , including the following steps:

[0057] a. Weighing: weigh alkyl polyglucoside, cardanol polyoxyethylene ether (BGF-9), oleyl alcohol polyoxyethylene ether, ethanol and water according to the set weight percentage;

[0058] b. Stir and mix: Put alkyl polyglucoside, cardanol polyoxyethylene ether, oleyl alcohol polyoxyethylene ether, and ethanol into water in turn, stir until each component is fully dissolved and becomes transparent, and the final sulfur wetting agent is obtained .

Embodiment 2-4

[0060] Examples 2-4 are all based on the method of Example 1, and the component content of the sulfur wetting agent is adjusted, and the specific adjustment is shown in Table 1 below.

[0061] The component table of table one embodiment 1-4

[0062]

[0063] 2.3, Embodiment 5-9

[0064] Examples 5-9 are all based on the method of Example 1, and the components of the nonionic surfactant are adjusted, and the specific adjustments are shown in Table 2 below.

[0065] The nonionic surfactant component table of table two embodiment 1,5-9

[0066]

Embodiment 1

[0068] Examples 10-13 are all based on the method of Example 1, and the components of the dispersant are adjusted, and the specific adjustments are shown in Table 3 below.

[0069] The nonionic surfactant component table of table three embodiment 1,10-13

[0070] Component type Example 1 Example 10 Example 11 Example 12 Example 13 ethanol 5 / / / / propanol / 1.5 / 0.5 / Butanol / / 2 / / Isobutanol / / 1 1 / tert-butanol / / 1 / / 2-Methyl-2-butanol / / / 1.5 / Ethylene glycol / 3 / / / Propylene Glycol / / 1 / polyvinyl alcohol / / / / 5 N,N-Dimethylformamide / 0.5 / 2 /

[0071] 3. Comparative example

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Abstract

The invention relates to the technical field of gas purification, in particular to a sulfur wetting agent for wet chelated iron desulfurization as well as a preparation method and a use method thereof. The sulfur wetting agent comprises the following components in percentage by weight: 10-30% of a nonionic surfactant, 5-10% of oleyl alcohol polyoxyethylene ether, 2-5 parts of a dispersing agent and the balance of water; the nonionic surfactant is one or a mixture of more of alkyl polyglucoside, cardanol polyoxyethylene ether and fatty alcohol-polyoxyethylene ether, so that the use requirementscan be met, and the ecological environmental protection requirements can also be met. The sulfur wetting agent is prepared by stirring and mixing, and has the characteristics of simple process and convenience in preparation. When in use, the sulfur settling agent is directly added into chelated iron desulfurization liquid according to a certain proportion, and has the characteristics of convenience in use and excellent sulfur settling effect.

Description

technical field [0001] The invention relates to the technical field of gas purification, in particular to a sulfur wetting agent for wet chelated iron desulfurization and a preparation and use method thereof. Background technique [0002] Hydrogen sulfide is a highly toxic gas with the smell of rotten eggs, mainly from natural gas purification, petroleum refining tail gas, coking and gas and other energy processing processes. Among them, the concentration of hydrogen sulfide contained in the tail gas of natural gas purification and petroleum refining is high and the total amount is large, which will cause corrosion of equipment and pipelines, and is very harmful to the environment, especially to people. Therefore, hydrogen sulfide in natural gas and refinery gases must be controlled or eliminated. Make its emissions meet the national environmental protection requirements. [0003] The liquid-phase redox desulfurization technology mainly uses high-concentration iron ions in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/01B01D53/52B01D53/78
CPCB01D21/01B01D53/52B01D53/78
Inventor 赵梅芳
Owner 浙江佳运能源技术有限公司
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