CN102304383A - Oil product desulfurizer and use thereof - Google Patents
Oil product desulfurizer and use thereof Download PDFInfo
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- CN102304383A CN102304383A CN201110223354A CN201110223354A CN102304383A CN 102304383 A CN102304383 A CN 102304383A CN 201110223354 A CN201110223354 A CN 201110223354A CN 201110223354 A CN201110223354 A CN 201110223354A CN 102304383 A CN102304383 A CN 102304383A
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Abstract
The invention discloses an oil product desulfurizer and use thereof. The oil product desulfurizer is prepared by mixing 30 to 70 percent of hydroxyurea, 0 to 15 percent of sulfolane, 0 to 10 percent of pyridine compound and 20 to 70 percent of deionized water. The oil product desulfurizer produced by the invention can remove hydrogen sulfide, element sulfur, thiol and COS from oil products through irreversible chemical reactions without generating sulfur-containing waste residue; the product of desulfurization can be separated from oil products easily; and the product is biodegradable and therefore is an environment-friendly desulfurizer. The desulfurizer is suitable for desulfurizing all kinds of raw material oil, finished oil and semi-finished oil.
Description
Technical field
The present invention relates to a kind of sweetening agent and uses thereof, especially a kind of desulfurizing oil agent that removes that is used for petroleum products mercaptan and hydrogen sulfide and uses thereof.
Background technology
Sulfide in the oil generates hydrogen sulfide, elemental sulfur and mercaptan, thioether etc. in petroleum refining process; Most of hydrogen sulfide is enriched in refinery gas (in liquefied gas, dry gas) with the form of gas, and a spot of hydrogen sulfide, most elemental sulfur, mercaptan, thioether then are enriched in the oil product.
Remove sulfide for sulfurous gas at present, mostly adopt the composite hydramine sweetening agent of one or more mixing in the alcohol amine compound (like thanomin, diethylolamine, N methyldiethanol amine etc.), the sulfide in the oil product then adopts alkali cleaning to add catalyzed oxidation technology.Wherein alkali cleaning is to adopt the alkali of 10%-20% to remove the hydrogen sulfide in the oil product; Catalyzed oxidation then is that mercaptan oxidation is become thioether; Alkali cleaning generates a large amount of sulfur-containing wasting alkali slags; Produce environmental problem, catalyzed oxidation mercaptan then is that the form of mercaptan with thioether is deposited in the oil product, can not reduce sulfur content in oil products.Owing to contain a large amount of alkene, have a large amount of side reactions through processing such as alkali cleaning, catalyzed oxidations and take place in the secondary processing oil product, influence the quality of oil product.At present, refining of petroleum basically all is that the method that adopts this alkali cleaning to add catalyzed oxidation is handled the sulfide in the oil product.
Summary of the invention
Technical problem to be solved by this invention is, desulfurizing oil agent of hydrogen sulfide and mercaptan in a kind of new processing oil product and uses thereof is provided.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of desulfurizing oil agent comprises the hydroxyurea of following component by mass percent: 30%-70%, the tetramethylene sulfone of 0-15%, the pyridine compounds of 0-10%, the deionized water of 20%-70%.
Said hydroxyurea is the one or more combination in monohydroxy urea, dihydroxyl urea, trihydroxy-urea or the tetrahydroxy urea.
Said pyridine compounds is pyridine or hexahydropyridine.
The consumption of said hydroxyurea is 40%-50%.
Said tetramethylene sulfone consumption is 10%.
Said pyridine compounds consumption is 5%.
Said deionized water consumption is 30%-50%.
Described desulfurizing oil agent is used for the desulfurization of various processed oils, secondary processing oil and crude oil.
The invention has the beneficial effects as follows: adopt desulfurizing oil agent of the present invention; There is not the sulfur-bearing alkaline residue; Mercaptan in the oil product neither be deposited in the form of disulphide in the oil product, and desulfurization product is water miscible organic sulfide, and is biodegradable; Being easy to from oil product, separate, is a kind of sweetening agent of environmental protection.
Embodiment
Below in conjunction with embodiment the present invention is done further explain, the following per-cent of mentioning is mass percent:
Desulfurizing oil agent of the present invention through the method for chemistry, is removed the hydrogen sulfide and the mercaptan that exist in the oil product, is irreversible chemical reaction, and desulfurization product is met high temperature and acid is not decomposed, and can not cause secondary pollution.Desulfurizing oil agent of the present invention specifically, by the hydroxyurea of 30%-70%, the tetramethylene sulfone of 0-15%, the pyridine compounds of 0-10%, the deionized water of 20%-70% is composite to form.
In the sweetening agent of the present invention, hydroxyurea can generate sulfur-containing organic compound with hydrogen sulfide, mercaptan generation chemical reaction, and product is water-soluble, can biological degradation.Hydroxyurea comprises monohydroxy urea, dihydroxyl urea, trihydroxy-urea, tetrahydroxy urea, and hydroxyurea can be a kind of hydroxyurea wherein, also can be the mixture of several kinds of ureas.The desulfurization product Heat stability is good of hydroxyurea can not decompose when being heated below 130 ℃, and the content of hydroxyurea is 30%-70% in this sweetening agent, preferred 40%-50%.
Tetramethylene sulfone among the present invention is a kind of thermally-stabilised high polar solvent; Main selective solvent in industry as liquid-vapour extraction; In petrochemical industry,, on ammonia synthesizing industry, be used for removing virgin gas hydrogen sulfide, organosulfur and carbonic acid gas as the solvent of extraction aromatic hydrocarbons.Can improve the desulphurizing activated and desulfuration efficiency of hydroxyurea in the present invention, tetramethylene sulfone content 0-15% in this sweetening agent, preferred 10%.
Among the present invention, add pyridine compounds, pyridine for example, hexahydropyridine can improve the sweetening power of sweetening agent, improves the desulfurization rate of sweetening agent.Pyridine compounds content 0-10% in this sweetening agent, preferred 5%.
Deionized water among the present invention promptly is the solvent of hydroxyurea, is again the separating agent of desulfurization product, is convenient to desulfurization product and from oil product, separates, the content 20-70% of water in this sweetening agent, preferred 30-50%.
Sweetening agent of the present invention can not only remove inorganic sulfurs such as hydrogen sulfide, elemental sulfur, and can remove the mercaptan below the organic sulfides, particularly C5 such as mercaptan, COS.This sweetening agent is applicable to the desulfurization of all kinds of processed oils such as gasoline, diesel oil, fuel wet goods, also is particularly suitable for the desulfurization of petroleum refinery's secondary processing oil product.Sweetening agent of the present invention also is suitable for the desulfurization of crude oil.
Below in conjunction with several concrete embodiment, further specify the present invention.
Embodiment 1: with 30 kilograms dihydroxyl urea, 50 kilograms deionized water, 5 kilograms pyridine; 15 kilograms tetramethylene sulfone mixing and stirring obtains the sweetening agent product, and products obtained therefrom is applied in the product gasoline; The decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 90% of mercaptan.
Embodiment 2: with 25 kilograms dihydroxyl urea, 55 kilograms deionized water, 5 kilograms pyridine; 15 kilograms tetramethylene sulfone mixing and stirring obtains the sweetening agent product, and products obtained therefrom is applied in the product gasoline; The decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 85% of mercaptan.
Embodiment 3: with 40 kilograms dihydroxyl urea, 40 kilograms deionized water, 10 kilograms pyridine; 10 kilograms tetramethylene sulfone mixing and stirring obtains the sweetening agent product, and products obtained therefrom is applied in the product gasoline; The decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 98% of mercaptan.
Embodiment 4: with 45 kilograms mixing hydroxyureas (15 kilograms of monohydroxy ureas, 10 kilograms of dihydroxyl ureas, 10 kilograms of trihydroxy-ureas, 10 kilograms of tetrahydroxy ureas); 45 kilograms deionized water, 5 kilograms pyridine, 5 kilograms tetramethylene sulfone mixing and stirring; Obtain the sweetening agent product; Products obtained therefrom is applied in the product gasoline decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 90% of mercaptan.
Embodiment 5: with 55 kilograms dihydroxyl urea, and 45 kilograms deionized water, mixing and stirring obtains the sweetening agent product, products obtained therefrom is applied in the product gasoline decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 95% of mercaptan.
Embodiment 6: with 60 kilograms dihydroxyl urea, and 30 kilograms deionized water, 10 kilograms pyridine, mixing and stirring obtains the sweetening agent product, products obtained therefrom is applied in the product gasoline decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 99% of mercaptan.
Embodiment 7: with 30 kilograms dihydroxyl urea, and 60 kilograms deionized water, 10 kilograms tetramethylene sulfone mixing and stirring obtains the sweetening agent product, products obtained therefrom is applied in the product gasoline decreasing ratio 100% of hydrogen sulfide, the decreasing ratio 97% of mercaptan.
Can know sweetening agent of the present invention, hydrogen sulfide and mercaptan in the ability effective elimination oil product by the foregoing description.
In sum, content of the present invention is not confined in the above embodiments, and the knowledgeable people in the same area can propose other embodiment easily within technical director's thought of the present invention, but this embodiment is included within the scope of the present invention.
Claims (8)
1. a desulfurizing oil agent is characterized in that, comprises the hydroxyurea of following component by mass percent: 30%-70%, the tetramethylene sulfone of 0-15%, the pyridine compounds of 0-10%, the deionized water of 20%-70%.
2. desulfurizing oil agent according to claim 1 is characterized in that, said hydroxyurea is the one or more combination in monohydroxy urea, dihydroxyl urea, trihydroxy-urea or the tetrahydroxy urea.
3. desulfurizing oil agent according to claim 1 is characterized in that, said pyridine compounds is pyridine or hexahydropyridine.
4. desulfurizing oil agent according to claim 1 is characterized in that, the consumption of said hydroxyurea is 40%-50%.
5. desulfurizing oil agent according to claim 1 is characterized in that, said tetramethylene sulfone consumption is 10%.
6. desulfurizing oil agent according to claim 1 is characterized in that, said pyridine compounds consumption is 5%.
7. desulfurizing oil agent according to claim 1 is characterized in that, said deionized water consumption is 30%-50%.
8. the described desulfurizing oil agent of claim 1 is used for the desulfurization of various processed oils, secondary processing oil and crude oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110223354 CN102304383B (en) | 2011-08-05 | 2011-08-05 | Oil product desulfurizer and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110223354 CN102304383B (en) | 2011-08-05 | 2011-08-05 | Oil product desulfurizer and use thereof |
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| Publication Number | Publication Date |
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| CN102304383A true CN102304383A (en) | 2012-01-04 |
| CN102304383B CN102304383B (en) | 2013-10-16 |
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| CN 201110223354 Expired - Fee Related CN102304383B (en) | 2011-08-05 | 2011-08-05 | Oil product desulfurizer and use thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495914A (en) * | 2015-12-14 | 2018-09-04 | 奇科迈尔有限公司 | Composition with a certain amount of 3,3 '-di-2-ethylhexylphosphine oxide (5- first bases oxazolidine) is flowing away the purposes in sulphur removal compound from technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580201A (en) * | 2004-05-15 | 2005-02-16 | 宜兴市兴达催化剂厂 | Improved desulfurizing agent for petroleum refinery |
| CN101434863A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Oxidative desulfurization method for sulfur-containing diesel |
-
2011
- 2011-08-05 CN CN 201110223354 patent/CN102304383B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580201A (en) * | 2004-05-15 | 2005-02-16 | 宜兴市兴达催化剂厂 | Improved desulfurizing agent for petroleum refinery |
| CN101434863A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Oxidative desulfurization method for sulfur-containing diesel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495914A (en) * | 2015-12-14 | 2018-09-04 | 奇科迈尔有限公司 | Composition with a certain amount of 3,3 '-di-2-ethylhexylphosphine oxide (5- first bases oxazolidine) is flowing away the purposes in sulphur removal compound from technique |
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| CN102304383B (en) | 2013-10-16 |
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