CN111909773A - Method for removing peculiar smell of regenerated base oil - Google Patents
Method for removing peculiar smell of regenerated base oil Download PDFInfo
- Publication number
- CN111909773A CN111909773A CN202010708705.4A CN202010708705A CN111909773A CN 111909773 A CN111909773 A CN 111909773A CN 202010708705 A CN202010708705 A CN 202010708705A CN 111909773 A CN111909773 A CN 111909773A
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- Prior art keywords
- base oil
- peculiar smell
- nitrogen
- regenerated base
- deodorizing
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a method for removing peculiar smell of regenerated base oil, which comprises the following steps: (1) introducing the regenerated base oil into a deodorizing and gas stripping kettle, and introducing nitrogen into the deodorizing and gas stripping kettle for gas stripping; (2) gas stripping is carried out to ensure that peculiar smell substances contained in the regenerated base oil are diffused to gas phase and discharged along with nitrogen, the peculiar smell substances are introduced into the adsorption tower together after being discharged, peculiar smell substances doped in the nitrogen are adsorbed and left, and the adsorbed nitrogen is introduced into the deodorization gas stripping kettle again for recycling; (3) and discharging the regenerated base oil after removing the peculiar smell substances to finish the peculiar smell removal. The method provided by the invention can effectively remove the unsaturated olefin, carboxylic acid substances, undecimated solvent and other peculiar smell substances contained in the regenerated base oil, complete the peculiar smell removal of the regenerated base oil, and increase the application area and the application effect of the regenerated base oil; the method utilizes the principle of gas stripping, can realize continuous operation, has high efficiency, can repeatedly and circularly utilize nitrogen, has low operation cost and is convenient to popularize.
Description
Technical Field
The invention relates to the technical field of lubricating oil treatment, in particular to a method for removing peculiar smell of regenerated base oil.
Background
After the lubricating oil is used for a period of time, the normal function of the lubricating oil is lost due to the introduction of impurities, the deterioration of additives and the like, and the lubricating oil becomes waste lubricating oil. In the process of regenerating and processing base oil by using modern waste lubricating oil, a small amount of peculiar smell substances such as unsaturated olefin, carboxylic acid substances, undegraded solvent and the like can be generated due to the high-temperature pyrolysis and solvent extraction processes, and the peculiar smell substances cause peculiar smell of the regenerated base oil, so that the sale and use of the regenerated base oil are greatly influenced.
Disclosure of Invention
The invention aims to provide a method for removing peculiar smell of regenerated base oil, which solves the problem that the sale and use of the regenerated base oil are influenced by peculiar smell.
The invention realizes the purpose through the following technical scheme:
a method for removing peculiar smell of regenerated base oil comprises the following steps
(1) Introducing the regenerated base oil into a deodorizing and gas stripping kettle, and introducing nitrogen into the deodorizing and gas stripping kettle for gas stripping;
(2) gas stripping is carried out to ensure that peculiar smell substances contained in the regenerated base oil are diffused to gas phase and discharged along with nitrogen, the peculiar smell substances are introduced into the adsorption tower together after being discharged, peculiar smell substances doped in the nitrogen are adsorbed and left, and the adsorbed nitrogen is introduced into the deodorization gas stripping kettle again for recycling;
(3) and discharging the regenerated base oil after removing the peculiar smell substances to finish the peculiar smell removal.
The further improvement is that the temperature of the regenerated base oil introduced into the deodorization stripping kettle is 80 ℃.
The further improvement is that the adsorption is carried out in the adsorption tower by an activated carbon adsorbent.
The further improvement is that the nitrogen is stored in a nitrogen storage tank and is provided with leading-out or suction power by a Roots compressor.
The further improvement is that the peculiar smell substances are discharged along with the nitrogen, and liquid foam suspended in the airflow is filtered by a wire mesh foam catcher.
The further improvement is that the nitrogen is uniformly and dispersedly introduced from the bottom of the deodorization stripping kettle through a nitrogen distributor.
The invention has the beneficial effects that: the method provided by the invention can effectively remove the unsaturated olefin, carboxylic acid substances, undecimated solvent and other peculiar smell substances contained in the regenerated base oil, complete the peculiar smell removal of the regenerated base oil, and increase the application area and the application effect of the regenerated base oil; the method utilizes the principle of gas stripping, can realize continuous operation, has high efficiency, can repeatedly and circularly utilize nitrogen, has low operation cost and is convenient to popularize.
Drawings
FIG. 1 is a schematic diagram of a process for the deodorization of a reclaimed base oil;
FIG. 2 is a schematic diagram of a system for deodorizing a reclaimed base oil;
in the figure: 1. a deodorization air stripping kettle; 2. an adsorption tower; 3. a nitrogen storage tank; 4. a Roots compressor; 5. a wire mesh mist eliminator; 6. a nitrogen distributor.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
The method of the invention needs a deodorizing system, as shown in fig. 2, the embodiment structure of the deodorizing system comprises a deodorizing gas stripping kettle 1, an adsorption tower 2, a nitrogen storage tank 3, a roots compressor 4, a silk screen foam trap 5 and a nitrogen distributor 6, wherein the deodorizing gas stripping kettle 1 is provided with a gas inlet, a gas outlet, a gas inlet and a gas phase exhaust port, the nitrogen storage tank 3 is communicated with the gas inlet, the nitrogen distributor 6 is arranged at the bottom in the deodorizing gas stripping kettle 1 and is communicated with the nitrogen storage tank 3, the gas phase exhaust port is connected with the silk screen foam trap 5, then is connected into the adsorption tower 2, and is connected with the nitrogen storage tank 3 through the roots compressor 4 to form a circulation pipeline.
As shown in fig. 1, the method of the present invention comprises the steps of:
(1) introducing the regenerated base oil into a deodorizing stripping kettle 1, and introducing nitrogen into the deodorizing stripping kettle 1 for stripping;
(2) gas stripping is carried out to ensure that the peculiar smell substances contained in the regenerated base oil are diffused to gas phase and discharged along with nitrogen, the gas is introduced into the adsorption tower 2 after being discharged, the peculiar smell substances doped in the nitrogen are adsorbed and left, and the adsorbed nitrogen is introduced into the deodorization gas stripping kettle 1 again for recycling;
(3) and discharging the regenerated base oil after removing the peculiar smell substances to finish the peculiar smell removal.
In the present invention, the temperature of the regenerated base oil introduced into the deodorizing stripping vessel 1 is 80 ℃.
In the present invention, the adsorption column 2 is used for adsorption by an activated carbon adsorbent, but other adsorbents may be used.
In the invention, the nitrogen is stored in the nitrogen storage tank 3 and is provided with leading-out or suction power by the Roots compressor 4.
In the invention, the liquid foam suspended in the air flow is filtered by the silk screen foam catcher 5 when the peculiar smell substances are discharged along with the nitrogen.
In the invention, nitrogen is uniformly dispersed and introduced from the bottom of the deodorization air stripping kettle 1 through the nitrogen distributor 6, so that the air stripping effect is improved.
The method provided by the invention can effectively remove the unsaturated olefin, carboxylic acid substances, undecimated solvent and other peculiar smell substances contained in the regenerated base oil, complete the peculiar smell removal of the regenerated base oil, and increase the application area and the application effect of the regenerated base oil; the method utilizes the principle of gas stripping, can realize continuous operation, has high efficiency, can repeatedly and circularly utilize nitrogen, has low operation cost and is convenient to popularize.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. A method for removing peculiar smell of regenerated base oil is characterized by comprising the following steps: comprises the steps of
(1) Introducing the regenerated base oil into a deodorizing and gas stripping kettle, and introducing nitrogen into the deodorizing and gas stripping kettle for gas stripping;
(2) gas stripping is carried out to ensure that peculiar smell substances contained in the regenerated base oil are diffused to gas phase and discharged along with nitrogen, the peculiar smell substances are introduced into the adsorption tower together after being discharged, peculiar smell substances doped in the nitrogen are adsorbed and left, and the adsorbed nitrogen is introduced into the deodorization gas stripping kettle again for recycling;
(3) and discharging the regenerated base oil after removing the peculiar smell substances to finish the peculiar smell removal.
2. The method of claim 1, wherein the regenerated base oil is introduced into the deodorizing stripper at a temperature of about 80 ℃.
3. The method for deodorizing regenerated base oil according to claim 1, characterized in that the adsorption column is filled with activated carbon adsorbent.
4. The method for deodorizing regenerated base oil according to claim 1, wherein the nitrogen is stored in a nitrogen storage tank and is provided with a leading-out or suction power by a roots compressor.
5. The method of claim 1, wherein the odor substances are removed with the nitrogen gas by filtering liquid foam suspended in the gas stream through a wire mesh foam trap.
6. The method for deodorizing regenerated base oil according to claim 1, wherein the nitrogen is uniformly and dispersedly introduced from the bottom of the deodorizing stripping kettle through a nitrogen distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708705.4A CN111909773A (en) | 2020-07-22 | 2020-07-22 | Method for removing peculiar smell of regenerated base oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708705.4A CN111909773A (en) | 2020-07-22 | 2020-07-22 | Method for removing peculiar smell of regenerated base oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111909773A true CN111909773A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010708705.4A Pending CN111909773A (en) | 2020-07-22 | 2020-07-22 | Method for removing peculiar smell of regenerated base oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115851366A (en) * | 2022-12-29 | 2023-03-28 | 安徽国孚生态工程技术有限公司 | Peculiar smell removing device for regenerated base oil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041746A2 (en) * | 1980-06-09 | 1981-12-16 | Shell Internationale Researchmaatschappij B.V. | Recovery of contaminated seal oils |
| US20100032342A1 (en) * | 2008-08-08 | 2010-02-11 | CleanOil Limited | Oil re-refining system and method |
| CN103146423A (en) * | 2013-04-01 | 2013-06-12 | 佛山市和挚承环保科技有限公司 | Method for regenerating and extracting waste mineral oil by filling nitrogen extracting |
| US20150048005A1 (en) * | 2013-08-13 | 2015-02-19 | Solvex Process Technologies LLC | System and Method for Stripping and Extraction of Used Lubricating Oil |
-
2020
- 2020-07-22 CN CN202010708705.4A patent/CN111909773A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041746A2 (en) * | 1980-06-09 | 1981-12-16 | Shell Internationale Researchmaatschappij B.V. | Recovery of contaminated seal oils |
| US20100032342A1 (en) * | 2008-08-08 | 2010-02-11 | CleanOil Limited | Oil re-refining system and method |
| CN103146423A (en) * | 2013-04-01 | 2013-06-12 | 佛山市和挚承环保科技有限公司 | Method for regenerating and extracting waste mineral oil by filling nitrogen extracting |
| US20150048005A1 (en) * | 2013-08-13 | 2015-02-19 | Solvex Process Technologies LLC | System and Method for Stripping and Extraction of Used Lubricating Oil |
Non-Patent Citations (2)
| Title |
|---|
| 关百钧等: "《世界林业发展概论》", 31 August 1994, 中国林业出版社 * |
| 陆希峰: "《润滑油制备技术与应用研究》", 30 June 2019, 天津科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115851366A (en) * | 2022-12-29 | 2023-03-28 | 安徽国孚生态工程技术有限公司 | Peculiar smell removing device for regenerated base oil |
| CN115851366B (en) * | 2022-12-29 | 2023-12-12 | 安徽国孚生态工程技术有限公司 | Regenerated base oil peculiar smell removing device |
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Application publication date: 20201110 |
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