CN1100114C - Adsorption refining method of synthetic hydrocarbon oil - Google Patents
Adsorption refining method of synthetic hydrocarbon oil Download PDFInfo
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- CN1100114C CN1100114C CN97122041A CN97122041A CN1100114C CN 1100114 C CN1100114 C CN 1100114C CN 97122041 A CN97122041 A CN 97122041A CN 97122041 A CN97122041 A CN 97122041A CN 1100114 C CN1100114 C CN 1100114C
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Abstract
The present invention relates to an adsorption refining method for synthetic hydrocarbon oil, which includes the following steps: mixing the synthetic hydrocarbon oil with a solid adsorbent selected from clay, molecular sieve and active carbon; then heating the mixture to 100 to 250 DEG C under the oxygen lack condition; keeping the temperature for 0 to 30 minutes; lowering the temperature below 100DEG C; removing the adsorbent. The method has the advantages of short refining time, high refining depth and good decolorization effect and has the functions of removing water, light fractions and organic chlorides.
Description
The invention relates to the process for purification of hydrocarbon ils, more particularly, is the adsorption refining method of synthetic hydrocarbon oil.
Synthetic hydrocarbon oil has good low-temperature fluidity, higher viscosity index and flash-point, and therefore lower carbon residue, ash content and S, N foreign matter content, since the '30s portion generation, have just obtained to use widely in American-European and China.The '30s end, the method (seeing Ind.Eng.Chem., Vol42, NO.122428, nineteen fifty) with wax olefin cracking production stand oil of German IG company (POLiTZ) exploitation is an operational path of realizing industrialized production synthetic hydrocarbon oil the earliest.For colourity and the performance of improving olefine polymer oil, this technology is carried out refining with adsorbents with atlapulgite to stand oil.Because the bromine number and the degree of unsaturation height of synthetic hydrocarbon oil, for preventing that thermal oxidative reaction takes place when refining, this process using lower extraction temperature (95 ℃), the refining time is grown (2 hours).
China utilizes the wax destructive distillation alhpa olefin to produce the important country of synthetic hydrocarbon oil, and its operational path is identical with the method cardinal principle of IG company, but (sees the will Vol.19 of Petroleum Association of Japan slightly improving aspect polymeric reaction condition and the refining with adsorbents condition; NO.11897-905,1976).As, when polymerization, adopt AlCl mostly
3Catalyzer, atlapulgite-Ca (OH) is adopted in refining with adsorbents
2, extraction temperature slightly improves, and is generally 110～130 ℃, refining 0.5～1 hour time.Utilize the refining colourity that can improve stand oil of this method, but effect is still undesirable, its colourity is deeper than the Dormant oils base oil of equal viscosity grade.
Owing to adopt AlCl when producing synthetic hydrocarbon oil mostly
3Complex catalyst, in polymerization process, this class catalyzer has generated some corroding metals inevitably and has influenced the organic chloride of oil property, should remove when refining, but still not have simple and effective removal methods at present.
Moisture in the lubricating oil has many adverse influences to the performance of oil product, and it may cause emulsification, the corrosion of oil product, quickens decaying and the decomposition of additive of oil product, also can influence the electrical property of oil product.Therefore most industrial lubricants all must be removed the moisture in the oil as much as possible.
Light fraction in the lubricating oil not only influences the flash-point of oil product, increase the volatility of oil product, and can quicken oil product deterioration by oxidation in use, so excellent lubrication oil base oil must have narrower fraction scope.
The objective of the invention is to overcome poor, the refining long defective of time of prior art refining effect, a kind of adsorption refining method of synthetic hydrocarbon oil is provided, exactly, provide a kind of refining depth height, the refining time is short, good decolorizing effect also can remove the adsorption refining method of the synthetic hydrocarbon oil of water, light fraction and organic chloride simultaneously.
The adsorption refining method of synthetic hydrocarbon oil provided by the invention comprises: synthetic hydrocarbon oil and solid adsorbent are mixed, be heated to 100～250 ℃ under anoxia condition, constant temperature 0～30 minute is cooled to below 100 ℃, separates and removes solid adsorbent.
Described synthetic hydrocarbon oil comprises olefin oligomerization oil, the alpha-olefin polymerization oil of wax destructive distillation, and the synthetic wet goods of the alkylbenzene of alhpa olefin and benzene alkylation.Wherein the wax destructive distillation alhpa olefin can be soft wax (general oleaginousness 20～40%) or soap wax (general oleaginousness 3～5%) cracked alhpa olefin.
Described solid adsorbent is the general sorbent material in this area, and as carclazyte, zeolite, gac etc., wherein carclazyte can activate, and also can not activate; Zeolite can be y-type zeolite, mordenite, omega zeolite, γ zeolite, erionite, ZSM series zeolite and Beta zeolite etc., the consumption of sorbent material is generally 1～12% of synthetic hydrocarbon oil weight, hydrocarbon ils viscosity is big more, and colourity is dark more, and the consumption of sorbent material is also just big more.
Described anoxia condition can be that decompression is found time, and vacuum tightness is 1～500mmHg, 1～350mmHg preferably, and vacuum tightness is high more, and refining effect is good more.Anoxia condition also can be to feed rare gas element, as CO
2, the gas of chemical reaction do not take place in nitrogen, helium, argon gas etc. and the component in the oil, pressure is at least 1atm, preferably is slightly larger than 1atm, as 1～1.2atm, used pressure should guarantee that system is in stable inert gas environment.Better with the refining effect that the decompression vacuum-pumping method obtains.Extraction temperature is 100～250 ℃, heat-up rate is this area heat-up rate commonly used, when temperature reaches extraction temperature, can lower the temperature immediately, also can constant temperature for some time, in general extraction temperature is low, heat-up rate is slow, the homothermic time should omit long, as＜0～30 minutes, constant temperature time also was fine above 30 minutes certainly, and just refining effect has no longer included noticeable change.
The adsorption refining method of synthetic hydrocarbon oil provided by the invention has been owing to adopted anoxia condition, thereby has following advantage:
(1) the refining time lacks, and a need 30 minutes even time are shorter, the refining depth height, and decolorizing effect is obvious.As, utilize this method can make the colourity of ISO VG68 synthetic hydrocarbon oil reduce to 0.5 grade by 4.5 grades.
(2) can remove water, light fraction and organic chloride.As, utilize this method can make the organic chloride content of synthetic hydrocarbon oil reduce to 8.4ppm from 205ppm, moisture is reduced to 30ppm from 320ppm, and flash-point is increased to 206 ℃ from 174 ℃.
In addition, method provided by the invention is combined with prior art, add The addition of C a (OH)
2, the acidic substance in the oil that can more effectively neutralize, for example, can make acid number from 0.5mgKOH/g reduce to 0.02mgKOH/g,
The invention will be further described below by embodiment.
Embodiment 1
Have stirring one, in the there-necked flask of thermometer and vacuum distillation apparatus, (oil one factory in Hangzhou produces to add the 500g olefine polymer oil, alhpa olefin synthetic oil ISO VG68) and the atlapulgite of 15g (chemical plastic factory in Fushun produces, first grade) then with system pump down to 100mmHg and begin heated and stirred, when rising to 100 ℃ of left and right sides, temperature begins water outlet, a large amount of water outlets during to 160 ℃, continue to be heated to 200 ℃, then stop heating and cooling, after treating that temperature is reduced to 60 ℃, stop to stir and, obtaining the purified olefine polymer oil behind the elimination carclazyte residue while hot with system's emptying.Refining effect sees Table 1.
Embodiment 2
In the there-necked flask that stirring, airway, thermometer, water distilling apparatus are housed, add soft wax cracking alpha-olefin polymerization oil (oil one factory in Fushun produces, alhpa olefin synthetic oil ISOVG68) 500g, atlapulgite 15g feeds N
2To a little more than external pressure, be heated to 180 ℃ then, the planar water in the atlapulgite purifies substantially, stops heating during to 200 ℃ and is cooled to 60 ℃, stops logical N
2And stirring, elimination residue while hot, refining effect is as shown in table 1.
Embodiment 3
Alpha-olefin polymerization oil 500g (the Lanzhou Oil Refinery production that in there-necked flask, adds the soap wax destructive distillation, alhpa olefin synthetic oil ISOVG68) and y-type zeolite 15g, apparatus and method by embodiment 1 are made with extra care, be to be heated to 180 ℃ under the condition of 200mmHg at the system vacuum degree, then stop heating and be cooled to 60 ℃, elimination carclazyte residue while hot, refining oil properties is as shown in table 1.
Embodiment 4
In there-necked flask, add alkylbenzene synthetic oil (swallowization corporatization plant produced, name of an article heavy alkyl benzene) 500g, carclazyte 40g, apparatus and method by embodiment 1 are made with extra care, with system pump down to 50mmHg and begin heated and stirred, treat that temperature rises to 120 ℃ after, kept 30 minutes, be cooled to 60 ℃ then, elimination carclazyte residue while hot, refining oil properties is as shown in table 1.
Embodiment 5
In there-necked flask, add higher soft wax cracking alpha-olefin polymerization oil (production of Fushun oil one factory) 500g and the atlapulgite 15g of content of organic chloride, apparatus and method by embodiment 1 are made with extra care, be to be heated to 250 ℃ under the condition of 100mmHg at the system vacuum degree, then stop heating and be cooled to 60 ℃, elimination carclazyte residue while hot, refining oil properties is as shown in table 1.
Embodiment 6
In there-necked flask, add higher soft wax cracking alpha-olefin polymerization oil 500g (production of Fushun oil one factory) the atlapulgite 15g of acid number, powdery Ca (OH)
210g, water 1g is undertaken by the apparatus and method of embodiment 1.At first 60 ℃ of following stirring reactions 30 minutes, then with system pump down to 100mmHg and continue heating and be cooled to 60 ℃, stop to stir and emptying elimination carclazyte and Ca (OH)
2Residue, refining effect sees Table 1.
Embodiment 7
(swallowization chemical industry three factories produce to add the underproof soft wax cracking of flash-point alpha-olefin polymerization oil 500g in there-necked flask, alhpa olefin synthetic oil ISOIVG46), atlapulgite 15g carries out refinement treatment by the apparatus and method of embodiment 1, system pressure is reduced to the 100mmHg post-heating stir, when treating that temperature rises to 210 ℃, made with extra care 0.5 hour under this temperature, most lightweight oil contents and water are being removed before this, are cooled to 60 ℃, elimination carclazyte residue, refining oil properties is as shown in table 1.
Embodiment 8
Add the thick product (it is synthetic to control oneself) of a kind of soft wax cracking alpha-olefin polymerization oil, its flash-point, moisture, colourity and cl content are all undesirable.Apparatus and method by embodiment 1 are made with extra care.Atlapulgite consumption 3%, 240 ℃ of extraction temperatures, vacuum tightness 300mmHg, refining 10 minutes time (under 240 ℃).Refining oil properties is as shown in table 1.
Comparative Examples 1
Under normal pressure, carry out clay-filtered
In the there-necked flask that stirring and thermometer are housed, add soft wax cracked alpha-olefin polymerization oil (production of Fushun oil one factory) 500g, atlapulgite 15g (120 ℃ activate 2 hours down), then restir is heated to 130 ℃, after under this temperature refining 30 minutes, be cooled to 60 ℃, behind the elimination carclazyte residue, refining oil properties is as shown in table 1.
Comparative Examples 2
Under normal pressure, carry out clay-filtered
In the there-necked flask that stirring and thermometer are housed, (swallowization chemical industry three factories produce to add the alkylbenzene synthetic oil, heavy alkyl benzene) 500g, atlapulgite 15g (120 ℃ activate 2 hours down), then restir is heated to 130 ℃, after under this temperature refining 30 minutes, is cooled to 60 ℃, behind the elimination carclazyte residue, refining oil properties is as shown in table 1.
As can be seen from Table 1, method provided by the invention is good decolorizing effect not only, and also can significantly remove moisture, light fraction and muriate, and compared with prior art, refining depth is higher.
Table 1
1. colourity: measure 2. kinematic viscosity by GB/T6540 method (being equivalent to ASTM D1500 method): measure 3. acid numbers by the GB/T265 method: measure 4. flash-points: measure 5. moisture: measure 6. cl contenies: press the RIPP64-90 coulometry and measure chloride content method mensuration in the crude oil by GB/T11133 determination of trace water method by the GB/T3536 method by the GB/T4945 method
| Synthetic hydrocarbon oil | ||||||||||||
| Before the refining with adsorbents | After the refining with adsorbents | |||||||||||
| Colourity | Kinematic viscosity mm 2/s 40℃ | Acid number mg KOH/g | Flash-point ℃ | Moisture ppm | Cl content ppm | Colourity | Kinematic viscosity mm 2/s 40℃ | Acid number mg KOH/g | Flash-point ℃ | Moisture ppm | Cl content ppm | |
| Embodiment 1 | 4.5 | 54.30 | 205 | 0.5 | 54.54 | 97 | ||||||
| Embodiment 2 | 4.5 | 54.30 | 1.0 | 54.34 | ||||||||
| Embodiment 3 | 4.0 | 72.5 | 0.5 | 72.7 | ||||||||
| Embodiment 4 | 6.5 | 116.8 | 3.0 | 117.2 | ||||||||
| Embodiment 5 | 4.5 | 54.30 | 205 | 54.68 | 8.4 | |||||||
| Embodiment 6 | 4.5 | 54.30 | 0.5 | 0.5 | 0.02 | |||||||
| Embodiment 7 | 4.5 | 48.5 | 170 | ＜1.0 | 208 | |||||||
| Embodiment 8 | 4.5 | 52.24 | 0.35 | 174 | 320 | 75 | ＜1.0 | 52.56 | 0.02 | 206 | 30 | 29 |
| Comparative Examples 1 | 4.5 | 52.24 | 0.35 | 174 | 320 | 75 | 3.5 | 52.28 | 0.33 | 175 | 150 | 73 |
| Comparative Examples 2 | 6.5 | 116.8 | 6.0 | 117.0 | ||||||||
Claims (8)
1. the adsorption refining method of a synthetic hydrocarbon oil comprises: synthetic hydrocarbon oil and solid adsorbent are mixed, be heated to 100～250 ℃ under vacuum condition or under the inert gas atmosphere, constant temperature 0～30 minute is cooled to below 100 ℃, separates and removes solid adsorbent.
2. according to the described process for purification of claim 1, the vacuum tightness that it is characterized in that vacuum condition is 1～500mmHg.
3. according to the described process for purification of claim 2, the vacuum tightness that it is characterized in that vacuum condition is 1～350mmHg.
4. according to the described process for purification of claim 1, it is characterized in that the pressure of rare gas element is at least 1atm.
5. according to the described process for purification of claim 4, it is characterized in that rare gas element is selected from one of nitrogen, carbonic acid gas, helium and argon gas.
6. according to the described process for purification of claim 1, it is characterized in that solid adsorbent is selected from one of carclazyte, zeolite, gac.
7. according to the described process for purification of claim 1, it is characterized in that synthetic hydrocarbon oil comprises olefin oligomerization oil, wax destructive distillation alpha-olefin polymerization oil and alkylbenzene synthetic oil.
8. according to the described process for purification of claim 1, it is characterized in that the solid adsorbent consumption is 1～12% of a synthetic hydrocarbon oil weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN97122041A CN1100114C (en) | 1997-12-16 | 1997-12-16 | Adsorption refining method of synthetic hydrocarbon oil |
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|---|---|---|---|
| CN97122041A CN1100114C (en) | 1997-12-16 | 1997-12-16 | Adsorption refining method of synthetic hydrocarbon oil |
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| CN1220300A CN1220300A (en) | 1999-06-23 |
| CN1100114C true CN1100114C (en) | 2003-01-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102127464B (en) * | 2009-10-22 | 2013-09-04 | 中国石油化工股份有限公司 | Method for removing organochlorine from hydrocarbon oil |
| CN104211560B (en) * | 2013-06-05 | 2016-08-10 | 中国石油天然气股份有限公司 | A kind of drippolene C8 fraction reclaims the discoloration method in styrene technique |
| CN107760358A (en) * | 2016-08-23 | 2018-03-06 | 中国石油化工股份有限公司 | Reform oil-off olefin process for refining process |
| CN111171862A (en) * | 2020-01-17 | 2020-05-19 | 中国海洋石油集团有限公司 | Preparation method of heat conduction oil base oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041751A (en) * | 1988-08-31 | 1990-05-02 | 埃克森化学专利公司 | The method of purification of straight-chain paraffin |
| CN1095092A (en) * | 1993-05-13 | 1994-11-16 | 芦英才 | Synthetic oil for transformer |
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1997
- 1997-12-16 CN CN97122041A patent/CN1100114C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041751A (en) * | 1988-08-31 | 1990-05-02 | 埃克森化学专利公司 | The method of purification of straight-chain paraffin |
| CN1095092A (en) * | 1993-05-13 | 1994-11-16 | 芦英才 | Synthetic oil for transformer |
Non-Patent Citations (1)
| Title |
|---|
| 日本石油学会杂志VOL.19,NO.11 1976-01-01 * |
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