CN118291211A - Industrial cleaning agent - Google Patents

Industrial cleaning agent Download PDF

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Publication number
CN118291211A
CN118291211A CN202310011445.9A CN202310011445A CN118291211A CN 118291211 A CN118291211 A CN 118291211A CN 202310011445 A CN202310011445 A CN 202310011445A CN 118291211 A CN118291211 A CN 118291211A
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CN
China
Prior art keywords
agent
cleaning agent
industrial cleaning
zinc
industrial
Prior art date
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Pending
Application number
CN202310011445.9A
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Chinese (zh)
Inventor
柴子斌
刘宗健
魏凯峰
明军
周蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Yangzi Petrochemical Co Ltd
Original Assignee
China Petroleum and Chemical Corp
Sinopec Yangzi Petrochemical Co Ltd
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Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Yangzi Petrochemical Co Ltd filed Critical China Petroleum and Chemical Corp
Priority to CN202310011445.9A priority Critical patent/CN118291211A/en
Publication of CN118291211A publication Critical patent/CN118291211A/en
Pending legal-status Critical Current

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Abstract

The invention provides an industrial cleaning agent which consists of 0.1-5wt% of polysaccharide colloid dispersing agent or triglycerin-3-diisostearate/dimer glyceride copolymer dispersing agent, 0.01-5wt% of iron ion complexing agent, 0.01-5wt% of manganese-containing composite oxidant, 0.01-3wt% of passivating agent, 0.01-5wt% of water softener and 95-99.8wt% of water. The industrial cleaning agent has the advantages of simple preparation method, high efficiency, cleanness, improvement of the safety of maintenance operation and improvement of the maintenance operation environment.

Description

Industrial cleaning agent
Technical Field
The invention belongs to the field of industrial cleaning agents, and particularly relates to a cleaning agent for overhauling and cleaning an oil refining chemical device.
Background
In recent years, the requirements of the national on the safety and environmental protection of the maintenance operation of chemical equipment are increasingly increased. For example, in the oil refining device, not only is the cleaning and high efficiency requirements required in the cleaning process of the equipment met, but also the ferrous sulfide cannot be remained after the equipment is opened, so that the spontaneous combustion accident is prevented. Meanwhile, the odor escape of malodor needs to be avoided, and the environmental odor of operation construction is ensured to be effectively controlled. When overhauling, the requirements of safety and environmental protection are firmly met, and safety production accidents in overhauling operation are avoided. When a general chemical device is cleaned, long-chain organic fatty acid salt is used as an emulsifying agent and a penetrating agent, and the components are added to facilitate the cleaning of equipment, but the long-chain organic fatty acid salt is dissolved in the waste water after the equipment is cleaned, so that the COD in the waste water is obviously improved. When the COD of the chemical cleaning wastewater of the oil refining device exceeds 1000mg/L, the chemical cleaning wastewater is not suitable to directly enter a biochemical wastewater treatment system, which clearly brings challenges to the post-treatment of the wastewater.
Disclosure of Invention
The invention aims to provide an industrial cleaning agent aiming at the defects of the prior art.
The technical scheme of the invention is as follows:
An industrial cleaning agent consists of 0.1-5wt% of polysaccharide colloid dispersing agent or triglycerin-3-diisostearate/dimer glyceride copolymer dispersing agent, 0.01-5wt% of iron ion complexing agent, 0.01-5wt% of manganese-containing composite oxidant, 0.01-3wt% of passivating agent, 0.01-5wt% of water softener and 95-99.8wt% of water. The metal salt selected by the passivating agent can be combined with sulfur anions to generate sulfides with a solubility product lower than that of ferrous sulfide, such as zinc salt, zinc sulfate, zinc acetate, zinc nitrate, zinc chloride, zinc gluconate and the like, so that the ferrous ions and the sulfur anions are prevented from being combined to generate the ferrous sulfide to achieve the deodorizing effect. The manganese-containing composite oxidant is combined to oxidize negative bivalent sulfur into higher valence state, so that malodorous smell in the oil refining device is effectively removed, and the overhaul operation environment is improved. The water softener is used for forming a complex with calcium and magnesium ions to play a role in scale prevention, and common water softeners include phosphate, hydrogen phosphate, dihydrogen phosphate, disodium ethylenediamine tetraacetate and the like. The iron ion complexing agent has the function of complexing with iron ions to prevent the formation of iron compound precipitation in alkaline environment, and common iron ion complexing agents include citrate, gluconate, sorbate and the like. According to the invention, the polysaccharide colloid dispersing agent or the triglycerol-3-diisostearate/dimer glyceride copolymer dispersing agent enables a cleaning agent system to form colloid, so that the composite oxidant is more uniformly dispersed, the oxidation effect is better, a new COD source is not introduced, and the cleaning wastewater is beneficial to directly enter a biochemical sewage treatment system for treatment.
As a further improvement of the technical scheme, the manganese-containing composite oxidant accounts for 0.01 to 3 weight percent for balancing the oxidation effect and the cost. The manganese oxidant is one or a mixture of more of potassium permanganate, potassium manganate, manganese sulfate, manganese nitrate and manganese acetate.
As a further improvement of the technical scheme, in order to enhance the S 2- oxidation effect, the manganese-containing composite oxidant consists of a manganese oxidant and an iron oxidant, wherein the content of the iron oxidant is 0.01-1wt% based on the mass of the cleaning agent, and the iron oxidant is one or a mixture of more of ferric sulfate, ferric chloride and ferric nitrate.
As a further improvement of the technical scheme, the passivating agent content is 0.01-1wt% in order to balance the passivating effect and the cost.
As a further improvement of the technical scheme, the passivating agent is one or more of zinc citrate, zinc sulfate, zinc acetate, zinc perchlorate, zinc gluconate, zinc chloride and zinc nitrate.
As a further improvement of the technical scheme, the colloid dispersing agent is one or a mixture of more of pectin, gelatin, carrageenan and xanthan gum; the content of the colloid dispersing agent is 0.1-3 wt%.
As a further improvement of the technical scheme, the content of the water softener is 0.02-2wt% for balancing the softening effect and the cost, and the water softener is one or a mixture of several of trisodium phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium hydrogen phosphate and diammonium hydrogen phosphate for substitution.
As a further improvement of the technical scheme, the content of the iron ion complexing agent is 0.01-1% in order to balance the complexing effect and the cost; the iron ion complexing agent is one or a mixture of sodium gluconate, sodium citrate and sodium sorbate.
The preparation method of the industrial cleaning agent is simple, and each step of operation condition can be carried out at normal temperature and normal pressure, and comprises the following steps:
A. distilled water is added into a container, and the temperature of the system is kept at 25-80 ℃;
B. adding a dispersing agent into the container, and stirring until the system is uniform;
C. Adding an iron oxide into a container, stirring to form a colloid in the system, and facilitating the full dispersion of the cleaning agent components in the system;
D. and adding the water softener, the manganese oxidant, the passivating agent and the complexing agent into the container, and uniformly stirring to obtain the industrial cleaning agent.
Compared with the prior art, the cleaning agent provided by the invention has outstanding substantial characteristics and remarkable progress, and particularly, the cleaning agent provided by the invention not only can be used for efficiently cleaning chemical equipment, but also can be used for effectively preventing ferrous ions and sulfur anions from being combined to generate ferrous sulfide, reducing the possibility of spontaneous combustion of the ferrous sulfide, and effectively improving the safety of overhaul operation. Furthermore, the industrial cleaning agent provided by the invention can effectively remove the foul smell in the oil refining device and improve the overhaul operation environment. In addition, the industrial cleaning agent provided by the invention is beneficial to the direct treatment of cleaning wastewater in a biochemical sewage treatment system.
Detailed Description
The technical scheme of the invention is further described in detail through the following specific embodiments. The COD in the examples was measured by HJ/T399-2007 and S 2- by HJ824-2017.
Example 1
99.57 Parts of distilled water, 0.2 part of carrageenan, 0.1 part of ferric sulfate, 0.05 part of sodium gluconate, 0.02 part of manganese sulfate, 0.05 part of zinc citrate and 0.01 part of trisodium phosphate are mixed according to a preparation flow to prepare the industrial cleaning agent A.
1.2L of industrial cleaning agent A is taken and added into a 2L stainless steel empty container which is filled with oil refining alkaline residues, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 1.
Example 2
1.2L of industrial cleaning agent A is taken and added into a 2L stainless steel container containing 30mL of oil refining alkaline residue, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 1.
Example 3
1.2L of industrial cleaning agent A is taken and added into a 2L stainless steel container containing 60mL of oil refining alkaline residue, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 1.
Example 4
1.2L of industrial cleaning agent A is taken and added into a 2L stainless steel container containing 60mL of oil refining alkaline residue, air is introduced at 25 ℃, and stirring and circulation are carried out for 4 hours. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 1.
TABLE 1 evaluation of Industrial cleaning agent A Effect
Example 5
Mixing 99.72 parts of distilled water, 0.2 part of carrageenan, 0.02 part of potassium permanganate, 0.05 part of zinc citrate and 0.01 part of trisodium phosphate according to a preparation flow to prepare the industrial cleaning agent B.
1.2L of industrial cleaning agent B is taken and added into a 2L stainless steel empty container which is filled with oil refining alkaline residues, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 2.
Example 6
1.2L of industrial cleaning agent B is taken and added into a 2L stainless steel container containing 30mL of oil refining alkaline residue, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 2.
Example 7
1.2L of industrial cleaning agent B is taken and added into a 2L stainless steel container containing 60mL of oil refining alkaline residue, and stirring and circulating are carried out for 4 hours at 25 ℃. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 2.
Example 8
1.2L of industrial cleaning agent B is taken and added into a 2L stainless steel container containing 60mL of oil refining alkaline residue, nitrogen is introduced at 25 ℃, and stirring and circulation are carried out for 4 hours. After the cleaning is finished, the container is opened to observe the cleaning effect, the interior of the container is clean and free of dirt, and a good cleaning effect is achieved. Meanwhile, the wastewater is taken for relevant analysis, and the analysis results are shown in Table 2.
TABLE 2 evaluation of Effect of Industrial cleaners B
In the embodiment, the industrial cleaning agent has good cleaning effect on the container for containing the oil refining alkaline residues, the S 2- removal rate can reach more than 90%, the malodorous smell is obviously eliminated, the residual quantity of the alkaline residues in the container is reasonably controlled, and the COD (chemical oxygen demand) of the cleaning wastewater is less than 1000mg/L, so that the cleaning wastewater is directly discharged into a petrochemical biochemical wastewater treatment system for treatment. It can also be seen through experiments that the air or nitrogen bleed during the purge process is beneficial for the removal of S 2- and COD.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that the present invention may be modified and equivalents substituted for elements thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims (10)

1. The industrial cleaning agent is characterized by comprising 0.1-5wt% of polysaccharide colloid dispersing agent or triglycerin-3-diisostearate/dimer glyceride copolymer dispersing agent, 0.01-5wt% of iron ion complexing agent, 0.01-5wt% of manganese-containing composite oxidant, 0.01-3wt% of passivating agent, 0.01-5wt% of water softener and 95-99.8wt% of water.
2. The industrial cleaning agent according to claim 1, wherein the manganese-containing composite oxidizing agent is contained in an amount of 0.01 to 3wt%.
3. The industrial cleaning agent according to claim 1 or 2, wherein the manganese-containing composite oxidizing agent is composed of a manganese oxidizing agent and an iron oxidizing agent, and the content of the iron oxidizing agent is 0.01 to 1wt% based on the mass of the cleaning agent.
4. The industrial cleaning agent according to claim 3, wherein the passivating agent is contained in an amount of 0.01 to 1wt%.
5. The industrial cleaning agent according to claim 4, wherein the passivating agent is one or more of zinc citrate, zinc sulfate, zinc acetate, zinc perchlorate, zinc gluconate, zinc chloride and zinc nitrate.
6. The industrial cleaning agent according to claim 3, wherein the colloidal dispersing agent is one or a mixture of pectin, gelatin, carrageenan and xanthan gum.
7. The industrial cleaner of claim 3, wherein the colloidal dispersant is present in an amount of 0.1 to 3wt%.
8. The industrial cleaning agent according to claim 3, wherein the water softener is contained in an amount of 0.02 to 2wt%.
9. The industrial cleaning agent according to claim 8, wherein the water softener is one or a mixture of several of trisodium phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium hydrogen phosphate and diammonium hydrogen phosphate.
10. The industrial cleaner of claim 3, wherein the iron ion complexing agent is present in an amount of 0.01-1wt%; the iron ion complexing agent is one or a mixture of sodium gluconate, sodium citrate and sodium sorbate.
CN202310011445.9A 2023-01-05 2023-01-05 Industrial cleaning agent Pending CN118291211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310011445.9A CN118291211A (en) 2023-01-05 2023-01-05 Industrial cleaning agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310011445.9A CN118291211A (en) 2023-01-05 2023-01-05 Industrial cleaning agent

Publications (1)

Publication Number Publication Date
CN118291211A true CN118291211A (en) 2024-07-05

Family

ID=91674906

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310011445.9A Pending CN118291211A (en) 2023-01-05 2023-01-05 Industrial cleaning agent

Country Status (1)

Country Link
CN (1) CN118291211A (en)

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