Efficient desulfurizing agent and preparation method thereof

A desulfurization agent and high-efficiency technology, applied in the field of desulfurization, can solve the problems of hard-to-biodegrade environment, long desulfurization agent regeneration time, high desulfurization cost, etc., to avoid water pollution, increase desulfurization efficiency, and low desulfurization cost.

Pending Publication Date: 2020-07-31
河北络合科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low desulfurization efficiency, poor stability and many side reactions of the existing desulfurizers, long time-consuming regeneration of the desulfurizer after desulfurization, high cost of desulfurization, difficulty of biodegradation and environmental pollution, the present invention provides a high-efficiency desulfurizer and its preparation method

Method used

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  • Efficient desulfurizing agent and preparation method thereof
  • Efficient desulfurizing agent and preparation method thereof
  • Efficient desulfurizing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-efficiency desulfurizer, comprising the following components by weight:

[0027] 0.4 parts of ferric nitrate, 2 parts of sodium iminodisuccinate, 10 parts of sodium carbonate, 2 parts of sodium thiosulfate, 1 part of sodium molybdate and 900 parts of water.

[0028] The preparation method of above-mentioned efficient desulfurizer is:

[0029] According to the weight ratio, add ferric nitrate into water and stir to dissolve, then add iminodisuccinic acid sodium salt to be completely dissolved, add sodium thiosulfate and sodium molybdate to dissolve, add sodium carbonate, adjust the pH value to 8, and obtain Desulfurizer.

Embodiment 2

[0031] A high-efficiency desulfurizer, comprising the following components by weight:

[0032] 0.7 parts of ferric nitrate, 4 parts of sodium iminodisuccinate, 12 parts of ammonia water, 3 parts of sodium thiosulfate, 2.5 parts of sodium molybdate and 1000 parts of water.

[0033] The preparation method of above-mentioned efficient desulfurizer is:

[0034] According to the weight ratio, add ferric nitrate into water and stir to dissolve, then add iminodisuccinic acid sodium salt to be completely dissolved, add sodium thiosulfate and sodium molybdate to dissolve, add ammonia water, adjust the pH value to 9, and obtain desulfurization agent.

Embodiment 3

[0036] A high-efficiency desulfurizer, comprising the following components by weight:

[0037] 1 part of ferric nitrate, 10 parts of ammonium iminodisuccinate, 15 parts of sodium carbonate, 5 parts of sodium thiosulfate, 5 parts of sodium molybdate and 1100 parts of water.

[0038] The preparation method of above-mentioned efficient desulfurizer is:

[0039] According to the weight ratio, add ferric nitrate into water and stir to dissolve, then add iminodisuccinate ammonium salt to be completely dissolved, add sodium thiosulfate and sodium molybdate to dissolve, add sodium carbonate, adjust the pH value to 8, and obtain Desulfurizer.

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Abstract

The invention relates to the technical field of desulfurization, and particularly discloses an efficient desulfurizing agent and a preparation method thereof. The efficient desulfurizing agent is prepared from the following components in parts by weight: 0.4 to 1 part of ferric nitrate, 2 to 10 parts of chelating agent, 10 to 15 parts of hydrogen sulfide absorbent, 2 to 5 parts of sodium thiosulfate, 1 to 5 parts of corrosion inhibitor and 900 to 1100 parts of water, wherein the chelating agent is iminodisuccinic acid or iminodisuccinate. The efficient desulfurizing agent provided by the invention is non-toxic, harmless, free of secondary pollution, good in stability, capable of keeping higher desulfurizing efficiency and higher sulfur capacity under conventional operation, simple in raw material composition and low in desulfurizing cost.

Description

technical field [0001] The invention relates to the technical field of desulfurization, in particular to a high-efficiency desulfurizer and a preparation method thereof. Background technique [0002] Hydrogen sulfide is a corrosive and irritating acidic harmful gas, which is an industrial waste gas produced with industrial production. Low concentrations of hydrogen sulfide will cause serious harm to the atmospheric environment and human health. Natural gas is widely used in the chemical industry and civilian use. It contains impurities such as hydrogen sulfide. When hydrogen sulfide meets water, it forms a weak acid. The existence of weak acid will cause corrosion of steel and other equipment and pipelines. Moreover, if the natural gas containing hydrogen sulfide is used as domestic fuel, the exhaust gas generated after the combustion of natural gas will contain sulfide. Therefore, it is first necessary to remove the hydrogen sulfide from the extracted natural gas to meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/78B01D53/14
CPCB01D53/52B01D53/78B01D2257/304B01D53/1468B01D2252/102B01D2252/10
Inventor 唐量苏俊岭赵全辉
Owner 河北络合科技有限公司
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