CN215855934U - Device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil - Google Patents
Device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil Download PDFInfo
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- CN215855934U CN215855934U CN202121216458.2U CN202121216458U CN215855934U CN 215855934 U CN215855934 U CN 215855934U CN 202121216458 U CN202121216458 U CN 202121216458U CN 215855934 U CN215855934 U CN 215855934U
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Abstract
Device capable of regenerating lube base oil with used lube oil continuously: the oil gas outlet at the top of the flash tower is connected and communicated with a 250SN oil temperature controller, a 250SN oil fractionator, a 75SN oil temperature controller, a 75SN oil fractionator, a diesel oil temperature controller and a diesel oil fractionator in sequence through pipelines; the 250SN oil fractionator, the 75SN oil fractionator and the diesel oil fractionator are respectively connected and communicated with respective catalytic adsorption desulfurization and decoloring towers through respective intermediate tanks and oil pumps through oil outlets at the bottoms of the fractionators and pipelines; the catalytic adsorption and desulfurization and decoloration towers of each component are respectively connected and communicated with the intermediate tank of the product oil through respective final coolers and respective intermediate tanks of the product oil. Through the structure, the utility model provides the device for regenerating the lubricating oil base oil by the waste lubricating oil, which can directly utilize the waste heat for catalytic adsorption desulfurization and decoloration without condensation and can be continuously used.
Description
Technical Field
The utility model belongs to the field of waste mineral oil refining equipment, and particularly relates to a device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil.
Background
Vehicles and mining machines in China are continuously increased, the quantity of the waste lubricating oil is increased, and equipment for regenerating the waste lubricating oil is also generated. The existing regeneration mode is basically a method of carrying out oxidative flocculation, sedimentation and decoloration by adopting mobile equipment such as an acid washing stirring tank, an alkali washing stirring tank, a carclazyte stirring tank or a chemical agent stirring tank such as aluminum chloride and the like, and then assisting agent extraction and desulfurization regeneration of a back extraction tower tank; in addition, the method for regenerating the waste lubricating oil by hydrogenation in China is abandoned by small factories due to too high centralized transportation and production cost; in addition, most plants need to perform secondary heating on the oil products fractionated by the fractionating tower to perform desulfurization and decoloration. The series of various stirring tanks use electricity, time and chemical agents in a large amount, so that the equipment investment is large, the operation is complicated, the production cost is high, acid-base residues, clay residues and agent oil residues bring secondary pollution, the oil loss is serious, the product quality is poor, and the production efficiency is low.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a device capable of continuously regenerating lubricating base oil by using waste lubricating oil. The whole regeneration process of desulfurization and decolorization can be completed by the waste lubricating oil only through the simple treatment. The process has no moving equipment of acid and alkali washing tanks connected in series, no frequent switching operation of an extraction tower tank and an extractant regeneration evaporation tower tank, and no generation of various solids, liquids and waste residues. The utility model integrates the functions of a plurality of pickling tanks, alkaline washing tanks, clay stirring tanks, extraction and back extraction tower tanks and the like, and can continuously complete the operations of oxidation, distillation and cutting of the waste lubricating oil, catalytic adsorption desulfurization and decoloration of distillate oil by using only one set of static equipment, and the desulfurization is thorough without generating wastes such as reaction waste liquid, waste residue and the like which are difficult to treat. The equipment device is simple and practical, and solves the technical problems of more movable equipment, complex operation, large investment, high production cost, incomplete desulfurization, serious secondary pollution, large oil loss and low production efficiency in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the device can continuously regenerate the lubricating oil base oil by using the waste lubricating oil, and an oil gas outlet at the top of the flash tower is sequentially connected with a 250SN oil temperature controller, a 250SN oil separator, a 75SN oil temperature controller, a 75SN oil fractionator, a diesel oil temperature controller and a diesel oil fractionator through pipelines;
a bottom oil outlet of the 250SN oil separator is communicated with a 250SN oil intermediate tank through a pipeline, a bottom oil outlet of the 75SN oil fractionator is communicated with the 75SN oil intermediate tank through a pipeline, and a bottom oil outlet of the diesel fractionator is communicated with the diesel oil intermediate tank through a pipeline;
oil outlets of the 250SN oil intermediate tank, the 75SN oil intermediate tank and the diesel oil intermediate tank are respectively connected with respective oil forming tanks through pipelines after passing through respective independent catalytic adsorption decoloring and desulfurizing systems.
The lower part of the flash tower is provided with a flash tower bottom oil outlet which is sequentially connected with a residual oil intermediate tank, a residual oil pump, a residual oil condenser and a residual oil finished product tank through pipelines.
The 250SN oil intermediate tank is communicated with a 250SN oil primary decoloring tower, a 250SN oil primary catalytic desulfurization tower, a 250SN oil secondary decoloring tower, a 250SN oil final cooler and a 250SN oil finished product tank in sequence after passing through a 250SN oil pump through a pipeline.
The 75SN oil intermediate tank is communicated with a 75SN oil primary decoloring tower, a 75SN oil primary desulfurizing tower, a 75SN oil secondary decoloring tower, a 75SN oil final cooler and a 75SN oil finished product tank in sequence after passing through a 75SN oil pump through a pipeline.
The diesel oil intermediate tank passes through the pipeline behind the diesel oil pump, in proper order with diesel oil first order decoloration tower, diesel oil first order desulfurizing tower, diesel oil second order decoloration tower, diesel oil final cooling ware, the diesel oil finished product jar communicates with each other.
The diesel oil fractionator is provided with a gas outlet at the top of the diesel oil fractionator, and the gas outlet at the top of the diesel oil fractionator is communicated with the vacuum unit through a vacuum condenser by a pipeline.
The flash tower is connected with the distillation tube furnace.
The front part of the distillation tube furnace is provided with an ozone pretreatment device.
The ozone pretreatment device comprises a pretreatment tubular furnace.
The raw oil tank is connected with an oil inlet of the pretreatment tubular furnace through a raw oil pump by a pipeline, and an oil-gas output pipe of the pretreatment tubular furnace is connected with an oil inlet of the oxidation tower;
an oil gas output pipe opening at the top of the oxidation tower is communicated with the pretreatment condenser, the light oil intermediate tank, the light oil pump and the light oil finished product tank in sequence through pipelines;
an oil outlet of the oxidation tower is communicated with a pretreated oil intermediate tank through a pipeline, and the pretreated oil in the pretreated oil intermediate tank is connected and communicated with an oil inlet of the distillation tube furnace through a pipeline by a pretreated oil pump;
the ozone inlet at the lower part of the oxidation tower is connected and communicated with the oxygen pump through a pipeline.
The utility model has the beneficial effects that:
the utility model provides a device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil, wherein half of sulfur and various additives in the waste lubricating oil are reacted in an oxidation tower, and directly enter a distillation tube furnace for temperature raising and then are cut and fractionated on the basis of the temperature of the pretreated oil. And (3) feeding the cut component oil into a fixed bed catalytic adsorption desulfurization and decolorization tower of the component oil by utilizing waste heat directly without cooling by a condenser. All the components of oil are desulfurized and decolored by catalytic adsorption of a solid catalyst on a fixed bed to completely reach the national standard, and the desulfurization effect is obvious. The new equipment not only utilizes waste heat, but also saves a plurality of movable equipment, avoids waste and secondary pollution caused by poor desulfurization quality and incomplete mixing, impurity removal and separation of acid, alkali, an extracting agent and raw oil, greatly reduces production cost and improves social and economic benefits.
Drawings
FIG. 1: the utility model is a structure diagram of part of the ozone pretreatment device;
FIG. 2: the structure of the equipment for cutting and fractionating the distilled oil is shown in the utility model;
FIG. 3: the structure diagram of the catalytic adsorption desulfurization and decolorization part of the equipment is shown.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model is characterized in that:
1. the waste heat contained in the cut distillate oil is used for carrying out catalytic adsorption desulfurization and decolorization instead of condensation, and then is heated for desulfurization and decolorization.
2. A method for desulfurizing and decoloring by catalytic adsorption, a method for desulfurizing and decoloring by solid catalyst in a decoloring tower and a method for replacing a liquid acid and alkali washing stirring tank and an extraction and back extraction tower tank by a decoloring tower; meanwhile, the catalyst in the utility model can be repeatedly regenerated and used for many times.
3. Continuous production is used to replace one-tank intermittent production.
4. Ozone pretreatment equipment is used for replacing the pretreatment modes of sulfuric acid and various liquid oxidants.
Specifically, the method comprises the following steps:
the raw oil tank 16 is connected with the oil inlet 1 of the pretreatment tubular furnace 2 through a raw oil pump 17 by a pipeline; the oil gas output pipe orifice 3 of the pre-treatment pipe type furnace is connected with an oil inlet 6 of an oxidation tower 7; an oil gas output pipe orifice 8 at the top of the oxidation tower is connected and communicated with a pretreatment condenser 10, a light oil intermediate tank 18, a light oil pump 19 and a light oil finished product tank; an oil outlet 12 of the oxidation tower is connected and communicated with a pretreatment oil intermediate tank 14 through a pipeline; the oxidation tower is communicated with a pretreatment oil intermediate tank 14 through pipelines and connectors 11 and 13; the pretreated oil in the pretreated oil intermediate tank is connected and communicated with an oil inlet 20 of a distillation tube furnace 21 through a pipeline by a pretreated oil pump 15; an ozone inlet 5 at the lower part of the side of the oxidation tower is connected and communicated with an oxygen pump 4 through a pipeline; the distillation tube furnace oil outlet 24 is connected and communicated with the flash tower 22 through a pipeline; the overhead pipeline 23 of the flash tower is connected and communicated with a 250SN oil temperature controller 26, a 250SN oil fractionator 27, a 75SN oil temperature controller 28, a 75SN oil fractionator 29, a diesel oil temperature controller 30 and a diesel oil fractionator 31 in sequence through pipelines; a gas outlet 32 at the top of the diesel oil fractionator is connected and communicated with a vacuum unit through a vacuum condenser 34 by a pipeline; the bottom oil outlet 25 of the flash tower is connected and communicated with a residual oil intermediate tank 35, a residual oil pump 36, a residual oil condenser 33 and a residual oil finished product tank through pipelines in sequence; the bottom oil outlet of the 250SN oil fractionator 27 is connected and communicated with the 250SN oil intermediate tank 37 through a pipeline; the 250SN oil intermediate tank 37 is connected and communicated with a 250SN oil primary decoloring tower 43, a 250SN oil primary catalytic desulfurization tower 44, a 250SN oil secondary catalytic desulfurization tower 45, a 250SN oil secondary decoloring tower 46, a 250SN oil final cooler 57 and a 250SN oil finished product tank through a 250SN oil pump 38 in sequence through pipelines; an oil outlet at the bottom of the 75SN oil fractionator 29 is connected and communicated with a 75SN oil intermediate tank 39 through a pipeline; the 75SN oil intermediate tank 39 is connected and communicated with a 75SN oil pump 40, a 75SN oil primary decoloring tower 47, a 75SN oil primary desulfurizing tower 48, a 75SN oil secondary desulfurizing tower 49, a 75SN oil secondary decoloring tower 50, a 75SN oil final cooler 56 and a 75SN oil finished product tank in sequence through pipelines; the bottom oil outlet of the diesel oil fractionator 31 is connected and communicated with a diesel oil intermediate tank 41, a diesel oil pump 42, a diesel oil first-stage decoloring tower 51, a diesel oil first-stage desulfurizing tower 52, a diesel oil second-stage desulfurizing tower 53, a diesel oil second-stage decoloring tower 54, a diesel oil final cooler 55 and a diesel oil finished product tank in sequence through pipelines.
Example 1:
an apparatus capable of continuously regenerating a lubricant base oil with a used lubricant as shown in fig. 1-3. When in use, the waste lubricating oil is pumped out by the raw oil pump 17 and continuously injected into the pre-treatment tubular furnace 2 to be heated to a certain temperature, the heated oil enters the oxidation tower 7 from the oil outlet 3 of the pre-treatment tubular furnace 2 through a pipeline to descend, enters the oxidation tower from the ozone inlet 5 at the lower part of the oxidation tower side to ascend, and the descending liquid and the ascending ozone are subjected to sufficient cross flow through the filler 9 and then undergo chemical reaction to enable inorganic substances generated by sulfur and various additives in the waste lubricating oil to be removed by the subsequent adsorption bleaching tower. The oxidized oil enters a pretreated oil intermediate tank 14 from an oil outlet 12 at the bottom of an oxidation tower through a pipeline, the pretreated oil is high-temperature oil in the pretreated oil intermediate tank 14 at the moment, then the pretreated oil is conveyed to a distillation tube furnace 21 through a pipeline by a pretreated oil pump 15 for continuous temperature raising, after the temperature is raised to a set temperature, constant-temperature oil continuously enters a flash tower 22 through a pipeline from an oil outlet 24 of the distillation tube furnace for gas-liquid separation, gas enters a 250SN oil temperature controller 26 from the top of the flash tower 22 through a pipeline outlet 23 for temperature control to a required temperature, 250SN oil components enter a 250SN oil fractionator 27 for gas-liquid cutting and separation, 250SN oil liquid components enter a 250SN oil intermediate tank 37 through a pipeline at the bottom of a device body, the separated gas enters a 75SN oil temperature controller 28 through a pipe-jacking pipeline for temperature control, and then the 75SN oil components enter a 75SN oil separator 29 through a pipeline for gas-liquid cutting and separation, liquid enters a 75SN oil intermediate tank 39 from an oil outlet pipeline at the bottom of the device body, gas enters a diesel oil temperature controller 30 after coming out from a pipeline at the top of the device body, the temperature is controlled to be the required temperature, the gas and the liquid simultaneously enter a diesel oil fractionator 31 for separation, the liquid component of the diesel oil descends to enter a diesel oil intermediate tank 41 through a pipeline, the gas enters a vacuum final cooler 34 from an outlet 32 at the top of the device body through a pipeline, and the gas enters a light oil vacuum tank and a vacuum unit after the temperature is controlled to be normal temperature; the component oil descending in the flash tower is residual oil, enters a residual oil intermediate tank 35 through an oil outlet 25 through a pipeline, is cooled to a certain temperature through a residual oil pump 36 and a residual oil final cooler 33, and is input into a residual oil finished product tank through a pipeline.
250SN oil in the 250SN oil intermediate tank 37 is conveyed to a 250SN primary decoloring tower 43 filled with a solid decoloring particle adsorbent through a 250SN oil pump 38 through a pipeline for primary decoloring, then sequentially enters a 250SN primary catalytic desulfurization tower 44 filled with a solid desulfurization catalyst and a 250SN secondary catalytic desulfurization tower 45 under the action of pump pressure for desulfurization reaction, inorganic sulfur and impurities after the reaction enter a 250SN oil secondary decoloring tower 46 along with the oil to complete final desulfurization and decoloring tasks, and then the standard oil is input to a 250SN oil finished product tank through a 250SN oil final cooler 57 through a pipeline.
The fractionated oil in the 75SN oil intermediate tank 39 is conveyed to a 75SN oil primary decoloring tower 47 filled with solid decoloring particle adsorbent through a 75SN oil pump 40 through a pipeline for primary decoloring, then sequentially enters a 75SN oil primary catalytic desulfurization tower 48 filled with solid desulfurization catalyst and a 75SN oil secondary catalytic desulfurization tower 49 under the action of pumping pressure for desulfurization reaction, the inorganic sulfur and impurities after the reaction enter a 75SN oil secondary decoloring tower 50 along with the oil to complete the final desulfurization and decoloring tasks, and the standard oil is input to a 75SN oil finished product tank through a pipeline and a 75SN oil final cooler 56.
The fractionated oil in the diesel oil intermediate tank 41 is conveyed to a diesel oil primary decoloring tower 51 filled with a solid decoloring particle adsorbent through a diesel oil pump 42 through a pipeline for primary decoloring, then sequentially enters a diesel oil primary catalytic desulfurizing tower 52 filled with a solid desulfurizing catalyst and a diesel oil secondary catalytic desulfurizing tower 53 under the action of pumping pressure for desulfurization reaction, the residual inorganic sulfur and impurities after the reaction enter a diesel oil secondary decoloring tower 54 filled with a solid adsorbent along with the oil to complete the final desulfurization and decoloring tasks, and the standard oil is input into a diesel oil finished product tank through a diesel oil final cooler 55 through a pipeline.
Claims (9)
1. Can use device of useless lubricating oil regeneration lubricating oil base oil in succession, its characterized in that: the top oil gas outlet of the flash tower (22) is connected with a 250SN oil temperature controller (26), a 250SN oil separator (27), a 75SN oil temperature controller (28), a 75SN oil fractionator (29), a diesel oil temperature controller (30) and a diesel oil fractionator (31) in sequence through pipelines;
the bottom oil outlet of the 250SN oil separator (27) is communicated with a 250SN oil intermediate tank (37) through a pipeline, the bottom oil outlet of the 75SN oil fractionator (29) is communicated with a 75SN oil intermediate tank (39) through a pipeline, and the bottom oil outlet of the diesel oil fractionator (31) is communicated with a diesel oil intermediate tank (41) through a pipeline;
oil outlets of the 250SN oil intermediate tank (37), the 75SN oil intermediate tank (39) and the diesel oil intermediate tank (41) are respectively connected with respective oil forming tanks through pipelines after passing through respective independent catalytic adsorption decoloring and desulfurizing systems.
2. The apparatus capable of continuously regenerating a lubricant base oil from a used lubricant according to claim 1, characterized in that: the lower part of the flash tower (22) is provided with a flash tower bottom oil outlet (25), and the flash tower bottom oil outlet (25) is sequentially connected with a residual oil intermediate tank (35), a residual oil pump (36), a residual oil condenser (33) and a residual oil finished product tank through pipelines.
3. The apparatus capable of continuously regenerating a lubricant base oil from a used lubricant according to claim 1, characterized in that: the 250SN oil intermediate tank (37) is communicated with a 250SN oil primary decoloring tower (43), a 250SN oil primary catalytic desulfurization tower (44), a 250SN oil secondary catalytic desulfurization tower (45), a 250SN oil secondary decoloring tower (46), a 250SN oil final cooler (57) and a 250SN oil finished product tank in sequence after passing through a 250SN oil pump (38) through a pipeline.
4. The apparatus capable of continuously regenerating a lubricant base oil from a used lubricant according to claim 1, characterized in that: the 75SN oil intermediate tank (39) is communicated with a 75SN oil primary decoloring tower (47), a 75SN oil primary desulfurizing tower (48), a 75SN oil secondary desulfurizing tower (49), a 75SN oil secondary decoloring tower (50), a 75SN oil final cooler (56) and a 75SN oil finished product tank in sequence after passing through a 75SN oil pump (40) through a pipeline.
5. The apparatus capable of continuously regenerating a lubricant base oil from a used lubricant according to claim 1, characterized in that: the diesel oil intermediate tank (41) is communicated with the diesel oil finished product tank sequentially through a pipeline, a diesel oil first-stage decoloring tower (51), a diesel oil first-stage desulfurizing tower (52), a diesel oil second-stage desulfurizing tower (53), a diesel oil second-stage decoloring tower (54) and a diesel oil final cooler (55) after passing through a diesel oil pump (42).
6. The apparatus capable of continuously regenerating a lubricant base oil from a used lubricant according to claim 1, characterized in that: the diesel oil fractionator (31) is provided with a diesel oil fractionator top gas outlet (32), and the diesel oil fractionator top gas outlet (32) is communicated with the vacuum unit through a vacuum condenser (34) by a pipeline.
7. The apparatus according to any one of claims 1 to 6, capable of continuously regenerating a lubricant base oil from a used lubricant oil, characterized in that: the flash tower (22) is connected with the distillation tube furnace (21).
8. The apparatus for continuously regenerating a lubricant base oil from a used lubricant according to claim 7, wherein: the front part of the distillation tube furnace (21) is provided with an ozone pretreatment device.
9. The apparatus for continuously regenerating a lubricant base oil from a used lubricant according to claim 8, wherein: the ozone pretreatment device comprises a pretreatment tubular furnace (2);
the raw oil tank (16) is connected with an oil inlet (1) of the pretreatment tubular furnace (2) through a raw oil pump (17) by a pipeline, and an oil-gas output pipe (3) of the pretreatment tubular furnace is connected with an oil inlet (6) of the oxidation tower (7);
an oil gas output pipe orifice (8) at the top of the oxidation tower is communicated with a pretreatment condenser (10), a light oil intermediate tank (18), a light oil pump (19) and a light oil finished product tank in sequence through pipelines;
an oil outlet (12) of the oxidation tower is communicated with a pretreated oil intermediate tank (14) through a pipeline, and pretreated oil in the pretreated oil intermediate tank (14) is connected and communicated with an oil inlet (20) of a distillation tube furnace (21) through a pipeline by a pretreated oil pump (15);
the ozone inlet (5) at the lower part of the oxidation tower (7) is connected and communicated with the oxygen pump (4) through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216458.2U CN215855934U (en) | 2021-06-02 | 2021-06-02 | Device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216458.2U CN215855934U (en) | 2021-06-02 | 2021-06-02 | Device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil |
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| CN215855934U true CN215855934U (en) | 2022-02-18 |
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| CN202121216458.2U Active CN215855934U (en) | 2021-06-02 | 2021-06-02 | Device capable of continuously regenerating lubricating oil base oil by using waste lubricating oil |
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- 2021-06-02 CN CN202121216458.2U patent/CN215855934U/en active Active
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