CN102746885A - Method for refining base oil for lubricating oil - Google Patents
Method for refining base oil for lubricating oil Download PDFInfo
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- CN102746885A CN102746885A CN2012102584200A CN201210258420A CN102746885A CN 102746885 A CN102746885 A CN 102746885A CN 2012102584200 A CN2012102584200 A CN 2012102584200A CN 201210258420 A CN201210258420 A CN 201210258420A CN 102746885 A CN102746885 A CN 102746885A
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Abstract
The invention provides a method for refining the base oil for the lubricating oil, comprising the following steps: A, heating the base oil for the lubricating oil, which is stored in a storage tank, to a first temperature, and outputting into a heat exchanger; B, heating the base oil for the lubricating oil, which is outputted into the heat exchange, to a second temperature by the heat exchange, and outputting into a fixed bed; C, adsorbing the base oil for the lubricating oil by the fixed bed, and outputting into filters; D, filtering the base oil for the lubricating oil by a coarse filter and a fine filter in sequence; E, observing the chrominance of the filtered base oil for the lubricating oil, carrying out the step F if the chrominance of the filtered base oil for the lubricating oil meets the output requirement, and outputting the filtered base oil for the lubricating oil into the storage tank if the chrominance of the filtered base oil for the lubricating oil does no meet the output requirement; and F, outputting the base oil for the lubricating oil into a refined oil tank. The method for refining the base oil for the lubricating oil adopts the fixed bed to adsorb the base oil for the lubricating oil, thereby having the advantages of mild pollution and good adsorption performance.
Description
Technical field
The present invention relates to the refining of petroleum field, particularly a kind of method that is used for the bright stock base oil.
Background technology
The base oil that short-path distillation comes out also contains impurity such as the trace metal, peculiar smell of azo class, asphalt colloid class, organic pigment, naphthenic acid and additives decompose; Distillation entrainment etc.; Need to pass through the refining stability that could improve base oil, keep base oil to have good physical and chemical performance.
Lubricating oil processing I class base oil generally all adopts clay finishing in the petroleum refining process: its technical process is in reaction kettle, to mix carclazyte heating and stirring, leave standstill with base oil; Use the flame filter press press filtration again; Support equipment has the carclazyte feeding unit; Whole plant investment expense is big, and energy consumption is also high.
In addition, because carclazyte adsorbs the oil-containing of residue up to about 46% (carclazyte butt amounts), usage quantity is bigger; Therefore its use is disposable; Can not reuse, need to adopt burning disposal and produce solid useless disposal, expense is about 2000 yuan/ton; Not only production cost is high, and causes complex treatment process.
Summary of the invention
In view of this, the invention provides a kind of method of bright stock base oil, it uses the nonmetalliferous ore sorbent material that lubricating oil is made with extra care, and has and pollutes the advantage little, that absorption property is good.
The method of a kind of bright stock base oil provided by the invention may further comprise the steps:
Steps A, the lubricant base that will be stored in the hold-up vessel are heated to first temperature, and export in the interchanger;
Step B, the lubricant base that uses interchanger will input to interchanger are heated to second temperature, and export fixed bed to, and this second temperature is higher than first temperature;
Step C, use ADSORPTION IN A FIXED BED lubricant base, and export in the strainer;
Step D, lubricant base pass through the filtration of coarse filter and fine filter successively;
Step e, the colourity of observing the lubricant base after filtering, if colourity meets the output required value, then performing step F if colourity does not meet the output required value, then exports lubricant base in the hold-up vessel to performing step A;
Step F, export lubricant base to product tank.
Preferably, among the step C, lubricant base contacts through fixed bed and with sorbent material in the fixed bed from the below of fixed bed from bottom to up.
Preferably, said sorbent material is the nonmetalliferous ore sorbent material, and this nonmetalliferous ore sorbent material comprises silicon-dioxide, sodium oxide, potassium oxide, aluminum oxide and attapulgite, and its mass percent is 32:10:12:43:13.
Preferably, step e further comprises: if the multiplicity of step D surpasses 5 times, colourity does not meet the output required value, then changes the sorbent material in the fixed bed, then lubricant base is exported in the hold-up vessel to performing step A.
Preferably, step e further comprises: if the multiplicity of step D surpasses 5 times, then use the empty blowing apparatus of pressurized air to export pressurized air from the top of fixed bed towards fixed bed, then lubricant base is exported in the hold-up vessel to performing step A.
Preferably, the filter core rank of said coarse filter is 50 orders, and the filter core rank of said fine filter is 5 microns.
Preferably, in the steps A, comprise inner coil pipe in the said hold-up vessel, lubricant base is heated to 80 ℃ through the Boiler Steam waste heat in the inner coil pipe.
Preferably, among the step B, in interchanger, use steam that lubricant base is heated to 130 ℃.
Visible by technique scheme, adopt the present invention can produce following beneficial effect:
(1) method of bright stock base oil of the present invention is through be heated to comparatively high temps to lubricant base in proper order; To improve the flowability of lubricant base; Use ADSORPTION IN A FIXED BED then, use two-stage filter to carry out filtering suction type then, make the absorption of objectionable impuritiess such as the oxynitrides that contains in the lubricant base, sulfide, organic pigment is fully carried out; Compare the use of having omitted whisking appliance with existing suction type, can save equipment investment cost.
(2) method of bright stock base oil of the present invention employing staple is the nonmetalliferous ore sorbent material of silicon-dioxide; It has high porosity and high-specific surface area; Advantages of good adsorption effect not only; And the solid useless amount of generation is few, can reuse Gu give up, and has saved the cost of useless admittedly processing cost and sorbent material greatly.
(3) method of bright stock base oil of the present invention uses Boiler Steam waste heat and vapor heated mode that lubricant base is heated; Can make full use of resource; Save the heating unit that is provided with for the heating lubricant base separately, thereby saved equipment investment cost.
Description of drawings
Fig. 1 is the method synoptic diagram of bright stock base oil of the present invention;
Fig. 2 is the structural representation of fixed bed in the method for bright stock base oil of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
In the present invention; Through the two-stage type of heating lubricant base is heated to higher temperature; To improve the flowability of lubricant base; Then use this suction type that external force need not be provided of fixed bed,, can reach the purpose of thorough mixing absorption then through the filtration of two-stage filter.Further, be the nonmetalliferous ore sorbent material of silicon-dioxide through adopting staple, the solid useless amount of not only advantages of good adsorption effect, and generation is few, can reuse Gu give up, and has saved the cost of useless admittedly processing cost and sorbent material greatly.
Fig. 1 is the method synoptic diagram of bright stock base oil of the present invention.As shown in Figure 1, the method for bright stock base oil of the present invention may further comprise the steps:
Steps A, the lubricant base that will be stored in the hold-up vessel 101 are heated to first temperature, and export in the interchanger 102.
Step B, the lubricant base that uses interchanger 102 will input to interchanger 102 are heated to second temperature, and export in the fixed bed 103.Wherein, this second temperature is higher than first temperature.
Step C, use fixed bed 103 adsorpting lubrications oil base oil, and export in the filter set.Wherein, filter set comprises coarse filter 104 and fine filter 105
Step D, lubricant base pass through the filtration of coarse filter 104 and fine filter 105 successively.
Step e, the colourity of observing the lubricant base after filtering, if colourity meets the output required value, then performing step F if colourity does not meet the output required value, then exports lubricant base in the hold-up vessel 101 to performing step A;
Step F, export lubricant base to product tank.
As shown in Figure 1; The method of bright stock base oil of the present invention is heated to comparatively high temps through the two-stage type of heating to lubricant base; To improve the flowability of lubricant base; Use ADSORPTION IN A FIXED BED then, use two-stage filter to carry out filtering suction type then, make the absorption of objectionable impuritiess such as the oxynitrides that contains in the lubricant base, sulfide, organic pigment is fully carried out.
Because fixed bed is the fixed bed that solid granulates shape sorbent material pile up is formed certain altitude, material from top or the bottom through bed, reach the purpose that mass transfer fully contacts absorption, have characteristics such as simple to operate, that control is convenient.Therefore, the method for this bright stock base oil of the present invention is compared the use of having omitted whisking appliance with existing suction type, can save equipment investment cost.
Fig. 2 is the structural representation of fixed bed in the method for bright stock base oil of the present invention.As shown in Figure 2, fixed bed 103 comprises: barrel-type casing 201, the input cavity 203 that is communicated with barrel-type casing 201 that is positioned at the fixed bed 202 of barrel-type casing 201 and is positioned at fixed bed 202 belows.Input cavity 203 is the cone of last end face greater than bottom surface, and input aperture 200 is horizontally placed on the sidewall of cone.
Fixed bed 202 comprises horizontally disposed upper spacer 221, lower clapboard 222, and is pressed on the sorbent material 223 between upper and lower dividing plate 221 and 222.Upper and lower dividing plate 221 and 222 can supply base oil to pass.The input terminus of fixed bed 202 is lower clapboard 222 1 sides, and output terminal is upper spacer 221 1 sides, and its output terminal links to each other with the input terminus of strainer 103, and the output terminal of strainer 103 is communicated with delivery port 300.
Base oil inputs in the input cavity 203 through input aperture 101, exports in the filter set through after the absorption of fixed bed 202,, the strainer group discharges after filtering through delivery port 300, thus the absorption of completion base oil.
Because input cavity 203 big cone for little down, and input aperture 200 is horizontally placed on the sidewall of this cone, when then base oil inputs in the input cavity 203 from input aperture 200, and can be owing to collide with the sidewall of input cavity 203 and to produce turbulent flow and turbulent flow.And input cavity 203 is positioned at the below of fixed bed 202; When the base oil that produces turbulent flow when the below of fixed bed 202 gets into; Its approach axis can guarantee the residence time that it is long in fixed bed 202 for tangentially, realizes the purpose of thorough mixing absorption.And flow direction from bottom to top can make fixed bed loosening, thereby the dead angle of avoiding causing owing to hardening produces.
This suction type of fixed bed can avoid that the absorption of existing carclazyte particle is needed heats, stirs, leaves standstill and step such as press filtration; Can guarantee to adsorb on the basis of quality; The required whisking appliance of existing suction type, filtering equipment etc. have been omitted; Can save equipment investment cost greatly, and suction type is simple to operation, device structure is simple.
In order to guarantee the quality of refining back base oil, filter set is divided into the bed filtration of coarse filter and fine filter, certainly, according to demands of different to treated oil, the also adjustable number of plies and filtration rank of haveing suffered filter.As shown in Figure 2, filter set is divided into coarse filter 104 and fine filter 105, at first inputs in the coarse filter 104 through the base oil after fixed bed 202 absorption, through after the filtration of coarse filter 104, inputs in the fine filter 105 and filters.Through after the filtration of fine filter 105, can get into next filtration cycle again, qualified promptly exportable until the colourity of base oil.
Filter set among the present invention may be selected to be any one strainer that is applicable to liquid filtering, and for example can select filter core is the strainer of non-woven fabrics material.The filtration rank of filter core should be selected and makes up according to basic oil condition and requirement, and for example the filter core of coarse filter is chosen as 50 order magnitudes, and correspondingly, the filter core of fine filter is chosen as 5 micron dimensions, or the like.
In order to use this suction type of fixed bed, the sorbent material in the fixed bed of the present invention is chosen as the nonmetalliferous ore sorbent material, and this nonmetalliferous ore sorbent material is rich in silicon-dioxide and enriches fiber material matter, is fired by kiln to form.This nonmetalliferous ore sorbent material comprises silicon-dioxide, sodium oxide, potassium oxide, aluminum oxide and attapulgite particularly, and its mass percent is 32:10:12:43:13.
This nonmetalliferous ore sorbent material has high porosity and high-specific surface area, compares with the carclazyte sorbent material, has the following advantages:
(1) activity is high, adsorption efficiency is high;
(2) smell etc. is all had adsorption, the oil product colourity after refining is good, smell weakens;
(3) renewable recycling: because the nonmetalliferous ore absorbent particles is bigger, internal capillary is also big, so its adsorbed oil plant can use pressurized air to blow out, thereby realizes the recycling of sorbent material;
(4) it is few to carry oil plant secretly through the regenerated residue: the carclazyte particle is less, and about 100 orders, the oil plant amount of the inside slight void absorption is difficult to extruded by the sheet frame squeezing machine usually; And the nonmetalliferous ore sorbent material is because particle is bigger; Internal capillary is also big, so its adsorbed oil plant can use pressurized air to blow out, through experiment; Operating mode carclazyte oleaginousness of the same race accounts for 46.7% of carclazyte weight, and nonmetalliferous ore sorbent material oleaginousness accounts for 17.2%;
(5) acid number of adjustable base oil: the pH value of nonmetalliferous ore sorbent material is 7-9, is alkalescence, can be used to regulate the acid number of base oil;
(6) dust is few, and operational pollution is little.
This nonmetalliferous ore sorbent material used in the present invention is host with the improved silica; And there are small amounts aluminium, sodium oxide, potassium oxide and attapulgite to mix fired forming; PH value shows weakly alkaline, and it has very strong adsorption to the limit material in the oil product, and it has very strong adsorptive power to the sulfide in the adsorpting lubrication oil, oxynitride, organic pigment through experiment; Improve the luminance brightness of oil product, can also regulate the pH value of lubricating oil.
In the step e of the method for bright stock base oil of the present invention, can whether refining qualified according to judge lubricant base through the colourity of filtering lubricant base.If when colourity does not meet the output required value, need lubricant base be exported in the hold-up vessel 101, repeated execution of steps A is to the adsorption process of step D.Generally speaking, after steps A to the adsorption process of step D repeated 3 ~ 5 times, the lubricant base after the adsorption filtration can meet the demands.If but steps A to the adsorption process of step D representes that then the adsorptive power of the sorbent material in the fixed bed is saturated when repeating still not meet the demands more than 5 times, then need change or upgrade sorbent material this moment.
Therefore, when the multiplicity of step D surpasses 5 times, when colourity did not meet the output required value, then step e further comprised: change the sorbent material in the fixed bed, then lubricant base is exported in the hold-up vessel to performing step A.
Perhaps, step e further comprises: use the empty blowing apparatus of pressurized air to export pressurized air from the top of fixed bed towards fixed bed, then lubricant base is exported in the hold-up vessel to performing step A.
The nonmetalliferous ore sorbent material that is adopted according to the present invention can repeat the characteristics of regenerated using, therefore, can the pressurized air sky be blown equipment and be arranged at the fixed bed top, towards fixed bed output pressurized air.Through pressurized air from top to bottom sky blow, can make the contained free base oil of sorbent material by external force effect and self gravitation effect and flow in the input cavity 203 of fixed bed bottom, and discharge by the Residual oil device for transferring.First input aperture 231 of this Residual oil device for transferring is communicated with the bottom of input cavity 203, and Residual oil is drawn out of under the effect of toothed gear pump.
For reducing the heat radiation of fixed bed, the barrel-type casing 201 and/or input cavity 203 outsides further have vacuum heat-insulating layer 211.The processing of polishing of its inwall is to reduce the calorific loss that thermal radiation causes.
Further, fixed bed of the present invention can comprise further that fixed bed moves loading plant 401, and fixed bed 103 can be installed on fixed bed through fixed bed support 402 and move loading plant 401.Preferably; In order to use manpower and material resources sparingly; The automated operation of realization system; Improve adsorption efficiency, ADSORPTION IN A FIXED BED device of the present invention further comprises the localized fixed bed locating module that is used for fixing the mobile loading plant 401 of bed, and is used to control the input of this fixed bed locating module and base oil, the control module of output.
As shown in Figure 1; In steps A of the present invention, can comprise inner coil pipe 111 in the hold-up vessel 101, it can be communicated with the Boiler Steam pipe; Thereby the waste heat through Boiler Steam heats lubricant base; Because the waste heat supply temperature of Boiler Steam is limited, therefore, the temperature that heats the lubricant base of back output through this type of heating is about 80 ℃.This type of heating can be realized the second stage employ of resource, does not need to be provided with separately heating installation again, thereby saves equipment cost.
Further, the lubricant base after the heating of the process first step can use in interchanger and be steam heated to higher temperature, for example 130 ℃.Because lubricant base has passed through the one-level heating; Therefore adding of (interchanger), pined for required heat minimizing in the second stage; Therefore, the mode that this two-stage of the present invention heats in proper order can either improve the flowability of lubricant base, to realize the fully purpose of absorption; Can realize save energy again, make full use of the purpose of existing resource, thereby save equipment cost.
Visible by technique scheme, adopt the present invention can produce following beneficial effect:
(1) method of bright stock base oil of the present invention is through be heated to comparatively high temps to lubricant base in proper order; To improve the flowability of lubricant base; Use ADSORPTION IN A FIXED BED then, use two-stage filter to carry out filtering suction type then, make the absorption of objectionable impuritiess such as the oxynitrides that contains in the lubricant base, sulfide, organic pigment is fully carried out; Compare the use of having omitted whisking appliance with existing suction type, can save equipment investment cost.
(2) method of bright stock base oil of the present invention employing staple is the nonmetalliferous ore sorbent material of silicon-dioxide; It has high porosity and high-specific surface area; Advantages of good adsorption effect not only; And the solid useless amount of generation is few, can reuse Gu give up, and has saved the cost of useless admittedly processing cost and sorbent material greatly.
(3) method of bright stock base oil of the present invention uses Boiler Steam waste heat and vapor heated mode that lubricant base is heated; Can make full use of resource; Save the heating unit that is provided with for the heating lubricant base separately, thereby saved equipment investment cost.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (8)
1. the method for a bright stock base oil is characterized in that, may further comprise the steps:
Steps A, the lubricant base that will be stored in the hold-up vessel are heated to first temperature, and export in the interchanger;
Step B, the lubricant base that uses interchanger will input to interchanger are heated to second temperature, and export fixed bed to, and this second temperature is higher than first temperature;
Step C, use ADSORPTION IN A FIXED BED lubricant base, and export in the strainer;
Step D, lubricant base pass through the filtration of coarse filter and fine filter successively;
Step e, the colourity of observing the lubricant base after filtering, if colourity meets the output required value, then performing step F if colourity does not meet the output required value, then exports lubricant base in the hold-up vessel to performing step A;
Step F, export lubricant base to product tank.
2. the method for bright stock base oil according to claim 1 is characterized in that, among the step C, lubricant base contacts through fixed bed and with sorbent material in the fixed bed from the below of fixed bed from bottom to up.
3. the method for bright stock base oil according to claim 2; It is characterized in that; Said sorbent material is the nonmetalliferous ore sorbent material, and this nonmetalliferous ore sorbent material comprises silicon-dioxide, sodium oxide, potassium oxide, aluminum oxide and attapulgite, and its mass percent is 32:10:12:43:13.
4. the method for bright stock base oil according to claim 3; It is characterized in that; Step e further comprises: if the multiplicity of step D surpasses 5 times, colourity does not meet the output required value, then changes the sorbent material in the fixed bed; Then lubricant base is exported in the hold-up vessel to performing step A.
5. the method for bright stock base oil according to claim 3; It is characterized in that; Step e further comprises: if the multiplicity of step D is above 5 times; Then use the empty blowing apparatus of pressurized air to export pressurized air towards fixed bed, then lubricant base is exported in the hold-up vessel to performing step A from the top of fixed bed.
6. the method for bright stock base oil according to claim 1 is characterized in that, the filter core rank of said coarse filter is 50 orders, and the filter core rank of said fine filter is 5 microns.
7. the method for bright stock base oil according to claim 6 is characterized in that, in the steps A, comprises inner coil pipe in the said hold-up vessel, through the Boiler Steam waste heat in the inner coil pipe lubricant base is heated to 80 ℃.
8. the method for bright stock base oil according to claim 6 is characterized in that, among the step B, in interchanger, uses steam that lubricant base is heated to 130 ℃.
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| CN201210258420.0A CN102746885B (en) | 2012-07-24 | 2012-07-24 | Method for refining base oil for lubricating oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479154A (en) * | 2018-06-21 | 2018-09-04 | 农业部规划设计研究院 | The continuous dust removal by filtration system and method for pyrolysis oil high pressure |
| CN109731369A (en) * | 2019-02-19 | 2019-05-10 | 安徽国孚凤凰科技有限公司 | A kind of multi-stage absorption extracting II class base oil device of production |
| CN113150822A (en) * | 2021-03-01 | 2021-07-23 | 中国石油化工股份有限公司 | Method for environment-friendly supplementary refining of lubricating oil base oil |
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| US4435270A (en) * | 1983-07-20 | 1984-03-06 | Mobil Oil Corporation | Re-refining lubricating oil in a bed of oil shale |
| CN1587353A (en) * | 2004-07-28 | 2005-03-02 | 中国石油化工集团公司 | Antigumming treating method for oxygen containing fraction oil |
| CN102304414A (en) * | 2011-08-03 | 2012-01-04 | 江苏雕皇石化科技有限公司 | Method for regenerating waste lubricating oil |
| WO2012009749A1 (en) * | 2010-07-19 | 2012-01-26 | Loyal Asset Development Limited | Process for treating used oil |
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Patent Citations (5)
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| GB327294A (en) * | 1929-04-10 | 1930-04-03 | William Detwiller Harris | Method of refining used lubricating oil |
| US4435270A (en) * | 1983-07-20 | 1984-03-06 | Mobil Oil Corporation | Re-refining lubricating oil in a bed of oil shale |
| CN1587353A (en) * | 2004-07-28 | 2005-03-02 | 中国石油化工集团公司 | Antigumming treating method for oxygen containing fraction oil |
| WO2012009749A1 (en) * | 2010-07-19 | 2012-01-26 | Loyal Asset Development Limited | Process for treating used oil |
| CN102304414A (en) * | 2011-08-03 | 2012-01-04 | 江苏雕皇石化科技有限公司 | Method for regenerating waste lubricating oil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479154A (en) * | 2018-06-21 | 2018-09-04 | 农业部规划设计研究院 | The continuous dust removal by filtration system and method for pyrolysis oil high pressure |
| CN109731369A (en) * | 2019-02-19 | 2019-05-10 | 安徽国孚凤凰科技有限公司 | A kind of multi-stage absorption extracting II class base oil device of production |
| CN113150822A (en) * | 2021-03-01 | 2021-07-23 | 中国石油化工股份有限公司 | Method for environment-friendly supplementary refining of lubricating oil base oil |
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| CN102746885B (en) | 2014-03-19 |
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