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Detergent for removing sulfur scales

A cleaning agent and sulfur scale technology, which is applied in the field of cleaning agents, can solve the problems of weak corrosion, ability to remove sulfur scale, severe stench, strong corrosion, etc., and achieve easy on-site operation, convenient use, and low corrosion Effect

Inactive Publication Date: 2018-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly aims at the unfriendly disadvantages of existing solvents for removing sulfur scale, such as high toxicity, strong irritation, severe stench, and strong corrosion, and provides a physical and chemical cleaning agent capable of removing sulfur scale. The cleaning agent has no foul smell, no irritation Minimal corrosion, weak corrosion, strong ability to remove sulfur scale, cleaning agent can be recycled through regeneration and easy to operate on site

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The product of the present invention is a cleaning agent capable of removing sulfur scale, which consists of: main solvent 20% triethanolamine, cosolvent 10% tetrahydronaphthalene, phase activator 15% benzyl alcohol, phase stabilizer 55% diaryl ethane .

[0025] Heat 100ml of cleaning agent at 30°C, add 200g of sulfur, and record the amount of sulfur dissolved in different time periods.

[0026] time (hours)

Embodiment 2

[0028] The product of the present invention is a cleaning agent capable of removing sulfur scale, which consists of: main solvent 20% triethanolamine, cosolvent 10% tetrahydronaphthalene, phase activator 15% benzyl alcohol, phase stabilizer 55% diaryl ethane .

[0029] Heat 100ml of cleaning agent at 50°C, add 200g of sulfur, and record the amount of sulfur dissolved in different time periods.

[0030] time (hours)

Embodiment 3

[0032] The product of the present invention is a cleaning agent capable of removing sulfur scale, which consists of: main solvent 20% triethanolamine, cosolvent 10% tetrahydronaphthalene, phase activator 15% benzyl alcohol, phase stabilizer 55% diaryl ethane .

[0033] Heat 100ml of cleaning agent at 70°C, add 200g of sulfur, and record the amount of sulfur dissolved in different time periods.

[0034] time (hours)

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PUM

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Abstract

The invention discloses a detergent for removing sulfur scales. The detergent comprises a main solvent, a co-solvent, a phase activator and a phase stabilizer. The above product combines the advantages of a physical solvent and chemical cleaning, and the obtained detergent has the advantages of no offensive odor, no irritation, little corrosion to stainless steel and carbon steel, and realizationof stable phase system after dissolving the sulfur scales. The detergent subjected to sulfur removal allows sulfur in the system to form crystallized sulfur precipitated from the detergent system through cooling and other simple operating means; and the detergent can be continuously recycled, so the cleaning cost is reduced. The detergent also has the advantages of simplicity in preparation, no dangerous reaction, extremely small environmental influences, convenience in use, and convenience in onsite operation.

Description

technical field [0001] The invention relates to a cleaning agent capable of removing sulfur scale, and belongs to the technical field of chemical petroleum. Background technique [0002] In many desulfurization units or sulfur recovery units, there are sulfur deposits and sulfur scales in the pipelines and equipment, which affect the normal production of the units. This is because the solution contains more or less sulfur during the desulfurization process. The growth of time adheres to the wall of the flow channel and the bottom of the equipment, forming sulfur scale. [0003] The existence of sulfur scale increases the potential safety hazard of the normal production of the device, and at the same time brings many difficulties to the maintenance of the production equipment. The deposited sulfur scale will cause the heat exchange efficiency of the pipeline to drop significantly or fail to reach the original design process operating temperature, seriously affecting the norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/036
CPCC23G5/036
Inventor 杨建平俞健健朱燕冯亚平
Owner CHINA PETROLEUM & CHEM CORP
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