CN109759037A - A kind of desorption apparatus and method of silica gel purification Reclaimed Base Oil - Google Patents
A kind of desorption apparatus and method of silica gel purification Reclaimed Base Oil Download PDFInfo
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- CN109759037A CN109759037A CN201910070685.XA CN201910070685A CN109759037A CN 109759037 A CN109759037 A CN 109759037A CN 201910070685 A CN201910070685 A CN 201910070685A CN 109759037 A CN109759037 A CN 109759037A
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- silica gel
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Abstract
The present invention relates to a kind of desorption apparatus of silica gel purification Reclaimed Base Oil, including silica gel refining plant and gas reflux apparatus, the silica gel refining plant includes reaction tower, the reaction tower surface is provided with several inlet and outlet nozzles, including silica gel entrance, adsorption solvent entrance and the gas vent being successively horizontally placed at the top of reaction tower.The gas reflux apparatus includes gas storage tank, and the gas storage tank is provided with several openings, and the gas storage tank is connect by opening and conduit with the one end for the roots blower for being set to gas storage tank side；The gas vent on the reaction tower top is connect by conduit with the one end for the condenser pipe that reaction tower side is arranged in, the inlet communication that the other end of the condenser pipe passes through conduit and the knockout drum for being set to the condenser pipe other side.The present invention heats silica gel and solvent with nitrogen as heat carrier, carries out defeated heat of conducting heat to substance, realizes the continuous production of device, further improves production efficiency.
Description
Technical field
The invention belongs to silica regeneration technical fields, and in particular to a kind of desorption apparatus of silica gel purification Reclaimed Base Oil and
Method.
Background technique
Traditional technology, which regenerates II class base oil, to be completed by hydrogenation technique, that there are security and stability is poor for this method,
At high cost, the defects of equipment investment is big.It recent studies have shown that, absorption extracting can be carried out by adsorbents such as silica gel and is regenerated
II class base oil, since the polarity of silica gel is stronger, undesirable components in adsorbable waste lubricating oil, its surface one after silica gel absorption
As all can adhesion section lubricating oil, the gap between silica gel can also be mingled with parts of lubricating oil, and the silica gel of these adsorpting lubrications oil is such as
Fruit not only causes certain pollution directly as garbage disposal to environment, but also is also the waste to resource.It is adsorbed in this method
Agent in use for some time, will be saturated, and can not continue to adsorb.Currently, traditional silica regeneration method, typically passes through
Calcining is realized, although the method is simple, silica gel is regenerated there is no the method using science, green, also not
Realization recycles resource, and equipment energy consumption is big, is not optimal adsorbent reactivation device and method.In addition, right
The regeneration treatment of silica gel can also cause silica gel itself certain in the process again along with troublesome operations such as input and output materials after absorption
Breakage, to reduce silica regeneration yield.Therefore, develop that a kind of equipment is simple and easy, can operate, significant effect, can simplify
Silica regeneration process device has important economy, society, the value of environmental protection and realistic meaning.
Summary of the invention
The object of the invention is that solve the above-mentioned problems and to provide a kind of structure simple, design a kind of reasonable silicon
The desorption apparatus and method of glue purification Reclaimed Base Oil.
The present invention through the following technical solutions to achieve the above objectives:
A kind of desorption apparatus of silica gel purification Reclaimed Base Oil, including silica gel refining plant and gas reflux apparatus, it is described
Silica gel refining plant includes the column reaction tower for being fixed on ground vertically, and the reaction tower surface is provided with several inlet and outlet nozzles,
Including silica gel entrance, adsorption solvent entrance and the gas vent being successively horizontally placed at the top of reaction tower, reaction tower side table
Face upper end is provided with No. two oil outlets, and it is gentle that the reaction tower bottom is successively horizontally arranged with No.1 oil outlet, oil inlet respectively
Body entrance；
The gas reflux apparatus includes gas storage tank, and the gas storage tank is provided with several openings, the gas
Body holding vessel is connect by opening and conduit with the one end for the roots blower for being set to gas storage tank side, the roots blower
The other end connect with the one end for the electric heater for being set to the roots blower side by conduit, the electric heater with set
It is placed in the output end connection of the controller outside device, the other end of the motor hot gas passes through conduit and the reaction tower lower end
Gas access connection；
The gas vent on the reaction tower top is connect by conduit with the one end for the condenser pipe that reaction tower side is arranged in,
The other end of the condenser pipe passes through the inlet communication of conduit with the knockout drum for being set to the condenser pipe other side, described
Knockout drum is provided with gas outlet end, and the gas outlet end is connected by the gas feed of conduit and the gas storage tank
It is logical.
By using above-mentioned technical proposal, it can be achieved that stripping-absorption of silica gel carries out in the same apparatus, nitrogen pair is utilized
Silica gel carries out stripping after absorption, so that silica shell be made to continue adsorption refining operation, the continuous production of device is realized, into one
Step improves production efficiency.
A kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil as described above, comprising the following steps:
S1: silica gel de-oiling after absorption
After reaction tower adsorption refining base oil, emptying inner base oil starts roots blower, electric heater, to reaction tower
Nitrogen after being inside passed through heating carries out stripping de-oiling to the silica gel after internal absorption；
S2: nitrogen circulation
The nitrogen of entrainment portions base oil is discharged by gas vent after stripping, starts condensing unit, defeated after gas is condensed
Enter in knockout drum, nitrogen is separated with base oil, and base oil is discharged by the outlet end of knockout drum, and the nitrogen returns again
Stream enters gas storage tank, and is recycled；
S3: base oil absorption and silica gel stripping circulate operation
After silica gel stripping is complete, continue to inject base oil into reaction tower, base oil is continued using the silica gel after stripping
Adsorption refining, after silica gel reaches adsorption saturation, repeatedly step S1 and S2 again.
As a further optimization solution of the present invention, step S4 is carried out after the step S3, the specific steps are that: silica gel is blown
After de--absorption repeatedly, regenerative operation is carried out to the silica gel in reaction tower, oxygen is inputted into reaction tower, is lighted, and silica gel is made to exist
After burning under certain temperature, the S1-S3 that repeats the above steps operation.
As a further optimization solution of the present invention, stripping-absorption number is 5-8 times in the step S4, the burning
Time is 2-4h, and temperature is maintained at 550 DEG C -600 DEG C.
As a further optimization solution of the present invention, the heating temperature of electric heater is 120-360 DEG C in the step S1,
The stripping time is 3-6h.
As a further optimization solution of the present invention, your the cold condensation temperature of pipe is maintained at 180-220 in the step S2
℃。
The beneficial effects of the present invention are:
1) present invention heats silica gel and solvent with nitrogen as heat carrier, and distills original using the partial pressure of nitrogen
Reason, under vacuum conditions, carries out defeated heat of conducting heat to substance, furthermore nitrogen prevents base oil oxygen at high temperature as inert gas
Change；
2) present invention carries out stripping to silica gel after absorption using nitrogen, so that silica shell be made to continue adsorption refining behaviour
Make, realizes the continuous production of device, further improve production efficiency；
3) present invention carries out stripping to silica gel directly in reaction tower and silica gel is made to carry out continuous production to base oil, reduces
Silica gel input and output material and caused by silica gel it is damaged.
Detailed description of the invention
Fig. 1 is integrated artistic flow diagram of the invention；
Fig. 2 is reaction tower structural schematic diagram of the invention.
In figure: 1, reaction tower；2, gas storage tank；3, roots blower；4, electric heater；5, condenser pipe；6, gas-liquid separation
Tank；11, No. two oil outlets；12, silica gel entrance；13, adsorption solvent entrance；14, gas vent；15, No.1 oil outlet；16, into
Hydraulic fluid port；17, gas access.
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment 1
As shown in Figs. 1-2, a kind of desorption apparatus of silica gel purification Reclaimed Base Oil, including silica gel refining plant and gas return
Device is flowed, the silica gel refining plant includes the column reaction tower 1 for being fixed on ground vertically, and 1 surface of reaction tower is provided with
Several inlet and outlet nozzles, silica gel entrance 12, adsorption solvent entrance 13 and gas including being successively horizontally placed on 1 top of reaction tower go out
Mouth 14, the silica gel entrance 12 are used to for injecting silica gel, the adsorption solvent entrance 13 into reaction tower 1 into reaction tower 1
It injects adsorption solvent methyl pyrrolidone (NMP), the gas vent 14 is used to outside discharge gas；The 1 side table of reaction tower
Face upper end is provided with No. two oil outlets 11, and 1 bottom of reaction tower is successively horizontally arranged with No.1 oil outlet 15, oil inlet respectively
16 and gas access 17, the reaction tower 1 is for carrying out base oil absorption extracting and stripping operation.
The gas reflux apparatus includes gas storage tank 2, and the gas storage tank 2 is provided with several openings, described
Gas storage tank 2 is connect by opening and conduit with the one end for the roots blower 3 for being set to 2 side of gas storage tank, and wind is passed through
Machine transmits gas outward, and the other end of the roots blower 3 is added by conduit with the electricity for being set to 3 side of roots blower
One end of hot device 4 connects, and the electric heater 4 is connect with the output end for the controller being set to outside device, by electric heater 4
The gas to come to conveying heats, and the other end of the motor hot gas passes through the gas of conduit and 1 lower end of reaction tower
Entrance 17 is connected to, and is thus passed through gas into reaction tower 1.
One end that the gas vent 14 on 1 top of reaction tower passes through conduit and the condenser pipe 5 that 1 side of reaction tower is arranged in
Connection, the condenser pipe 5 cool down incoming gas, and the other end of the condenser pipe 5 by conduit and is set to described
The inlet communication of 5 other side knockout drum 6 of condenser pipe, the gas enter knockout drum 6 after condensing and carry out gas-liquid point
From the part basis oil of gas entrainment transfers out after separating from the outlet end of knockout drum 6, and the knockout drum 6 is arranged
There is gas outlet end, the gas outlet end is connected to by conduit with the gas feed of the gas storage tank 2, to realize gas
The reflux of body is recycled.
A kind of process refining Reclaimed Base Oil desorption apparatus according to above-mentioned silica gel, comprising the following steps:
S1: silica gel de-oiling after absorption
After 1 adsorption refining base oil of reaction tower, emptying inner base oil starts roots blower 3, electric heater 4, Xiang Fanying
Nitrogen after being passed through heating in tower 1 carries out stripping de-oiling to the silica gel after internal absorption；
S2: nitrogen circulation
The nitrogen of entrainment portions base oil is discharged by gas vent 14 after stripping, starts condensing unit, after gas is condensed
It inputs in knockout drum 6, nitrogen is separated with base oil, and base oil is discharged by the outlet end of knockout drum 6, and the nitrogen is again
It is secondary to flow back into gas storage tank 2, and be recycled；
S3: base oil absorption and silica gel stripping circulate operation
After silica gel stripping is complete, continue into reaction tower 1 inject base oil, using the silica gel after stripping to base oil after
Continuous purification, after silica gel reaches adsorption saturation, repeatedly step S1 and S2 again.
It should be noted that the stripping of the silica gel-adsorption operations need after carrying out 5-8 times to the silica gel in reaction tower 1
Regenerative operation is carried out, the specific steps are that: after inputting oxygen into reaction tower 1 and lighting a fire, make internal silica gel burning 2-4h, temperature
550 DEG C -600 DEG C are maintained at, with a small amount of undesirable components that not can be removed inside silica gel after removal repeatedly continuous absorption, thus real
The regeneration of existing silica gel, and above-mentioned S1-S3 operating procedure is carried out again.
The heating temperature of electric heater 4 is 120-360 DEG C in the step S1, and the stripping time is 3-6h.
Your the cold condensation temperature of pipe is maintained at 180-220 DEG C in the step S2.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (6)
1. a kind of desorption apparatus of silica gel purification Reclaimed Base Oil, it is characterised in that: including silica gel refining plant and gas backstreaming
Device, the silica gel refining plant include the column reaction tower (1) for being fixed on ground vertically, reaction tower (1) the surface setting
There are several inlet and outlet nozzles, including silica gel entrance (12), the adsorption solvent entrance (13) being successively horizontally placed at the top of reaction tower (1)
With gas vent (14), reaction tower (1) the side surface upper end is provided with No. two oil outlets (11), reaction tower (1) bottom
It is successively horizontally arranged with No.1 oil outlet (15), oil inlet (16) and gas access (17) respectively；
The gas reflux apparatus includes gas storage tank (2), and the gas storage tank (2) is provided with several openings, described
Gas storage tank (2) is connect by opening and conduit with the one end for the roots blower (3) for being set to gas storage tank (2) side,
One end that the other end of the roots blower (3) passes through conduit and the electric heater (4) for being set to the roots blower (3) side
Connection, the electric heater (4) connect with the output end for the controller being set to outside device, the other end of the motor hot gas
It is connected to by conduit with the gas access (17) of the reaction tower (1) lower end；
The condenser pipe (5) of the gas vent (14) on reaction tower (1) top by conduit and setting in reaction tower (1) side
The other end of one end connection, the condenser pipe (5) passes through conduit and the knockout drum for being set to the condenser pipe (5) other side
(6) inlet communication, the knockout drum (6) are provided with gas outlet end, the gas outlet end by conduit with it is described
The gas feed of gas storage tank (2) is connected to.
2. a kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil as described in claim 1, which is characterized in that including
Following steps:
S1: silica gel de-oiling after absorption
After reaction tower (1) adsorption refining base oil, emptying inner base oil starts roots blower (3), electric heater (4), to anti-
The nitrogen after being passed through heating in tower (1) is answered, stripping de-oiling is carried out to the silica gel after internal absorption；
S2: nitrogen circulation
The nitrogen of entrainment portions base oil is discharged by gas vent (14) after stripping, starts condensing unit, defeated after gas is condensed
Enter in knockout drum (6), nitrogen is separated with base oil, and base oil is discharged by the outlet end of knockout drum (6), the nitrogen
Gas storage tank (2) are flowed back into again, and are recycled；
S3: base oil absorption and silica gel stripping circulate operation
After silica gel stripping is complete, continues to inject base oil in reaction tower (1), base oil is continued to inhale using the silica gel after stripping
Attached purification, after silica gel reaches adsorption saturation, repeatedly step S1 and S2 again.
3. a kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil according to claim 2, which is characterized in that institute
Step S4 is carried out after stating step S3, the specific steps are that: after silica gel stripping-absorption is multiple, the silica gel in reaction tower (1) is carried out
Regenerative operation is lighted to oxygen is inputted in reaction tower (1), and after so that silica gel is burnt at a certain temperature, is repeated the above steps
S1-S3 operation.
4. a kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil according to claim 3, it is characterised in that: institute
Stating stripping in step S4-absorption number is 5-8 times, and the burning time is 2-4h, and temperature is maintained at 550 DEG C-600 DEG C.
5. a kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil according to claim 2, it is characterised in that: institute
The heating temperature for stating electric heater (4) in step S1 is 120-360 DEG C, and the stripping time is 3-6h.
6. a kind of method of the desorption apparatus of silica gel purification Reclaimed Base Oil according to claim 2, it is characterised in that: institute
It states your the cold condensation temperature of pipe in step S2 and is maintained at 180-220 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910070685.XA CN109759037A (en) | 2019-01-25 | 2019-01-25 | A kind of desorption apparatus and method of silica gel purification Reclaimed Base Oil |
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| CN201910070685.XA CN109759037A (en) | 2019-01-25 | 2019-01-25 | A kind of desorption apparatus and method of silica gel purification Reclaimed Base Oil |
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Cited By (2)
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| CN110240926A (en) * | 2019-06-26 | 2019-09-17 | 武汉纺织大学 | A method of using silica gel to absorb base oil and regenerate and recycle silica gel |
| CN114345314A (en) * | 2021-12-28 | 2022-04-15 | 安徽国孚润滑油工业有限公司 | Regeneration device and method for oil-containing silica gel after desorption by water |
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Cited By (2)
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| CN110240926A (en) * | 2019-06-26 | 2019-09-17 | 武汉纺织大学 | A method of using silica gel to absorb base oil and regenerate and recycle silica gel |
| CN114345314A (en) * | 2021-12-28 | 2022-04-15 | 安徽国孚润滑油工业有限公司 | Regeneration device and method for oil-containing silica gel after desorption by water |
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