CN110577843A - Method for deacidifying oil product by using low-molecular mixed alcohol - Google Patents
Method for deacidifying oil product by using low-molecular mixed alcohol Download PDFInfo
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- CN110577843A CN110577843A CN201910949765.2A CN201910949765A CN110577843A CN 110577843 A CN110577843 A CN 110577843A CN 201910949765 A CN201910949765 A CN 201910949765A CN 110577843 A CN110577843 A CN 110577843A
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- China
- Prior art keywords
- oil
- low
- mixed alcohol
- deacidifying
- molecular mixed
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
- C10G53/08—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
- C10G2300/203—Naphthenic acids, TAN
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4006—Temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4012—Pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/44—Solvents
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a method for deacidifying oil products by using low-molecular mixed alcohol, which is characterized by comprising the following steps of: the method comprises the following steps: s1, putting alcohol, ammonia and water into a glass container according to a proportion, and uniformly stirring to obtain a low-molecular mixed alcohol extract; s2, taking a proper amount of oil and an extraction liquid at the normal temperature of 20-30 ℃, and mixing the oil and the extraction liquid according to the mass ratio of 3: 1, stirring and mixing, reacting naphthenic acid in oil with an extract, standing for layering, and then carrying out liquid-liquid separation to obtain the oil with a low acid value and an extract phase; s3, adding alumina into the oil product with the low acid value at the normal temperature of 20-30 ℃, and fully further absorbing the organic acid in the oil product with the low acid value; s4, heating the extract phase in a distiller to recover the low-molecular mixed alcohol extract for reuse.
Description
Technical Field
The invention belongs to the technical field of oil product deacidification, and particularly relates to a method for deacidifying an oil product by using low-molecular mixed alcohol.
Background
Acid is an important component in oil products, and the acid in the oil products can corrode metal equipment and cause serious harm to subsequent processing processes, so that the removal of the acid in the oil products is beneficial to the subsequent processing and utilization of the oil products, and the widely used deacidification processes at home and abroad comprise an alkaline washing electrical refining method and a hydrogenation refining method at present. The traditional alkaline washing electrical refining method is easy to produce emulsification, the oil product loss is large, the direct discharge of alkaline residue can generate three wastes and cause the loss of naphthenic acid resources, if the naphthenic acid is recycled, the sulfuric acid is consumed, and a large amount of sewage which is rich in Na, SO. and the like and is difficult to treat is generated; the radon-adding refining method has good oil quality and high product yield, is widely applied abroad, but has high investment and operation cost, and destroys the valuable natural resource of naphthenic acid.
Disclosure of Invention
the invention mainly solves the technical problem of providing the method for deacidifying the oil product by using the low-molecular mixed alcohol, and has the advantages of ideal deacidification effect, mild reaction condition, simple equipment, repeated utilization of the extraction liquid and no pollution to the environment.
In order to solve the technical problems, the invention adopts a technical scheme that: provides a method for deacidifying oil products by using low-molecular mixed alcohol, which comprises the following steps:
S1, putting alcohol, ammonia and water into a glass container according to a proportion, and uniformly stirring to obtain a low-molecular mixed alcohol extract;
S2, taking a proper amount of oil and an extraction liquid at the normal temperature of 20-30 ℃, and mixing the oil and the extraction liquid according to the mass ratio of 3: 1, stirring and mixing, reacting naphthenic acid in oil with an extract, standing for layering, and then carrying out liquid-liquid separation to obtain the oil with a low acid value and an extract phase;
S3, adding alumina into the oil product with the low acid value at the normal temperature of 20-30 ℃, and fully further absorbing the organic acid in the oil product with the low acid value;
S4, heating the extract phase in a distiller to recover the low-molecular mixed alcohol extract for reuse.
Further, the molecular mixed alcohol extract comprises, by mass, 60% of ethanol, 20% of isopropanol, 15% of methanol, 3% of ammonia, and 2% of water.
the oil product is crude oil and various distillate oil obtained by atmospheric and vacuum distillation, and the boiling point of the distillate oil is 200-500 ℃.
in step S2, the stirring time is 30min, the reaction time is 1h, and the standing time is 5 h.
in step S2, the time for putting the alumina into the oil product with low acid value to absorb the organic acid is 3 hours.
further, in the step S2, the regeneration temperature of the extract phase reduced pressure distillation is 80-120 ℃, the vacuum degree is-0.05-0.1 MPa, and the regeneration time is 1-4 h.
The invention has the beneficial effects that: the method has the advantages of ideal deacidification effect, mild reaction conditions, simple equipment, repeated utilization of the extract liquor, economy, saving, no pollution to the environment and very wide industrial application prospect.
And the desulfurization cost is low, the stability is good, almost no residue exists in the oil product, and the repeated utilization rate is high.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
example (b): a method for deacidifying oil products by using low molecular mixed alcohol provides a method for deacidifying oil products by using low molecular mixed alcohol, which comprises the following steps:
S1, putting alcohol, ammonia and water into a glass container according to a proportion, and uniformly stirring to obtain a low-molecular mixed alcohol extract;
S2, taking a proper amount of oil and an extraction liquid at the normal temperature of 20-30 ℃, and mixing the oil and the extraction liquid according to the mass ratio of 3: 1, stirring and mixing, reacting naphthenic acid in oil with an extract, standing for layering, and then carrying out liquid-liquid separation to obtain the oil with a low acid value and an extract phase;
S3, adding alumina into the oil product with the low acid value at the normal temperature of 20-30 ℃, and fully further absorbing the organic acid in the oil product with the low acid value;
S4, heating the extract phase in a distiller to recover the low-molecular mixed alcohol extract for reuse.
The molecular mixed alcohol extract comprises 60% of ethanol, 20% of isopropanol, 15% of methanol, 3% of ammonia and 2% of water according to the mass composition proportion.
the oil product refers to crude oil and various distillate oil obtained by atmospheric and vacuum distillation, and the boiling point of the distillate oil is 200-500 ℃.
In the step S2, the stirring time is 30min, the reaction time is 1h, and the standing and layering time is 5 h.
In the step S2, the time for putting the alumina into the oil product with low acid value to absorb the organic acid is 3 hours.
In the step S2, the regeneration temperature of the decompression distillation of the extract phase is 80-120 ℃, the vacuum degree is-0.05 to-0.1 MPa, and the regeneration time is 1-4 h.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications made by the present invention in the equivalent structure or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (6)
1. A method for deacidifying oil products by using low-molecular mixed alcohol is characterized by comprising the following steps: the method comprises the following steps:
S1, putting alcohol, ammonia and water into a glass container according to a proportion, and uniformly stirring to obtain a low-molecular mixed alcohol extract;
s2, taking a proper amount of oil and an extraction liquid at the normal temperature of 20-30 ℃, and mixing the oil and the extraction liquid according to the mass ratio of 3: 1, stirring and mixing, reacting naphthenic acid in oil with an extract, standing for layering, and then carrying out liquid-liquid separation to obtain the oil with a low acid value and an extract phase;
s3, adding alumina into the oil product with the low acid value at the normal temperature of 20-30 ℃, and fully further absorbing the organic acid in the oil product with the low acid value;
S4, heating the extract phase in a distiller to recover the low-molecular mixed alcohol extract for reuse.
2. The method for deacidifying oil products by using low-molecular mixed alcohol according to claim 1, is characterized by comprising the following steps: the molecular mixed alcohol extract comprises 60% of ethanol, 20% of isopropanol, 15% of methanol, 3% of ammonia and 2% of water according to the mass composition proportion.
3. the method for deacidifying oil products by using low-molecular mixed alcohol according to claim 1, is characterized by comprising the following steps: the oil product refers to crude oil and various distillate oil obtained by atmospheric and vacuum distillation, and the boiling point of the distillate oil is 200-500 ℃.
4. the method for deacidifying oil products by using low-molecular mixed alcohol according to claim 1, is characterized by comprising the following steps: the stirring and mixing time in the step S2 is 30min, the reaction time is 1h, and the standing and layering time is 5 h.
5. The method for deacidifying oil products by using low-molecular mixed alcohol according to claim 1, is characterized by comprising the following steps: in the step S2, the time for putting the alumina into the oil product with low acid value to absorb the organic acid is 3 h.
6. The method for deacidifying oil products by using low-molecular mixed alcohol according to claim 1, is characterized by comprising the following steps: in the step S2, the regeneration temperature of the decompression distillation of the extract phase is 80-120 ℃, the vacuum degree is-0.05 to-0.1 MPa, and the regeneration time is 1-4 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949765.2A CN110577843A (en) | 2019-10-08 | 2019-10-08 | Method for deacidifying oil product by using low-molecular mixed alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949765.2A CN110577843A (en) | 2019-10-08 | 2019-10-08 | Method for deacidifying oil product by using low-molecular mixed alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110577843A true CN110577843A (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910949765.2A Withdrawn CN110577843A (en) | 2019-10-08 | 2019-10-08 | Method for deacidifying oil product by using low-molecular mixed alcohol |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123825A (en) * | 1995-09-05 | 1996-06-05 | 新疆石油管理局克拉玛依炼油厂 | Deacidifying process for petroleum cut fraction with amino-alcohol |
| GB2356404A (en) * | 1999-10-22 | 2001-05-23 | Elf Exploration Prod | Process for deacidifying crude oils and a device therefore |
| CN1461795A (en) * | 2002-05-28 | 2003-12-17 | 石油大学(华东) | Method of crude oil and fraction oil deacidification and naphthenic acid refining method |
| CN101134907A (en) * | 2007-10-11 | 2008-03-05 | 中国海洋石油总公司 | Method for eliminating and reclaiming naphthenic acid from oil product and special-purposed composite deacidification agent |
| CN101665716A (en) * | 2009-09-22 | 2010-03-10 | 江汉大学 | Composite deacidification agent and method for recovering naphthenic acid from oil |
| CN101993776A (en) * | 2009-08-27 | 2011-03-30 | 中国石油化工股份有限公司 | Method for deacidifying biodiesel |
| CN102311775A (en) * | 2010-07-05 | 2012-01-11 | 中国石油化工股份有限公司 | Method for recovering naphthenic acid from hydrocarbon oil and device thereof |
| CN105419863A (en) * | 2015-12-10 | 2016-03-23 | 广东石油化工学院 | Process method for deacidifying high acid thickened oil |
| CN109135920A (en) * | 2018-09-29 | 2019-01-04 | 广州白云山汉方现代药业有限公司 | A kind of acid stripping method of grease |
-
2019
- 2019-10-08 CN CN201910949765.2A patent/CN110577843A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123825A (en) * | 1995-09-05 | 1996-06-05 | 新疆石油管理局克拉玛依炼油厂 | Deacidifying process for petroleum cut fraction with amino-alcohol |
| GB2356404A (en) * | 1999-10-22 | 2001-05-23 | Elf Exploration Prod | Process for deacidifying crude oils and a device therefore |
| CN1461795A (en) * | 2002-05-28 | 2003-12-17 | 石油大学(华东) | Method of crude oil and fraction oil deacidification and naphthenic acid refining method |
| CN101134907A (en) * | 2007-10-11 | 2008-03-05 | 中国海洋石油总公司 | Method for eliminating and reclaiming naphthenic acid from oil product and special-purposed composite deacidification agent |
| CN101993776A (en) * | 2009-08-27 | 2011-03-30 | 中国石油化工股份有限公司 | Method for deacidifying biodiesel |
| CN101665716A (en) * | 2009-09-22 | 2010-03-10 | 江汉大学 | Composite deacidification agent and method for recovering naphthenic acid from oil |
| CN102311775A (en) * | 2010-07-05 | 2012-01-11 | 中国石油化工股份有限公司 | Method for recovering naphthenic acid from hydrocarbon oil and device thereof |
| CN105419863A (en) * | 2015-12-10 | 2016-03-23 | 广东石油化工学院 | Process method for deacidifying high acid thickened oil |
| CN109135920A (en) * | 2018-09-29 | 2019-01-04 | 广州白云山汉方现代药业有限公司 | A kind of acid stripping method of grease |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20191217 |