CN109852465A - A kind of production technology of naphthenic base lubricating oil - Google Patents
A kind of production technology of naphthenic base lubricating oil Download PDFInfo
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- CN109852465A CN109852465A CN201811650902.4A CN201811650902A CN109852465A CN 109852465 A CN109852465 A CN 109852465A CN 201811650902 A CN201811650902 A CN 201811650902A CN 109852465 A CN109852465 A CN 109852465A
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Abstract
The invention belongs to technical field of petrochemical industry, and in particular to a kind of production technology of naphthenic base lubricating oil.The decompression line oil that the present invention is distilled using naphthene base crude is raw material, raw material is in reaction system after pretreatment, it mixes, heat with hydrogen, demetalization, desulfurization, nitrogen reaction occur in the reactor, and the isomerization of saturation, n-alkane of unsaturated hydrocarbons etc., isolated naphthenic base lubricating oil various products of the reaction product Jing Guo fractionating system, including transformer oil, refrigerator oil, rubber plastizing agent, arene content is not more than 1% (wt) in product, and base oil product yield is not less than 90%.
Description
Technical field
The invention belongs to technical field of petrochemical industry, and in particular to a kind of production technology of naphthenic base lubricating oil.
Background technique
Lube base oil is divided into five classes, and " old three sets " traditional handicraft mainly produces a kind of, two class lubricating oil base oils, packet
Solvent refining, solvent dewaxing and clay finishing are included, the polycyclic aromatic hydrocarbon of physical method selective removal low-viscosity index is passed through
With other heterocyclic compounds, do not change hydrocarbon structure existing in oil, thus the basic oil quality produced depends in raw material managing
Think the content and property of component, can not fundamentally improve the yield, Viscosity Index and other performance parameters of base oil, make this
Class base oil is restricted in performance.
In addition to this, the prior art also uses hydrogenation technique to produce base oil: under certain temperature, pressure condition, oil
Product and hydrogen hybrid reaction, remove containing sulphur, nitrogen, oxygen and metallic compound, be saturated aromatic hydrocarbons, reduce pour point.But part adds
Hydrogen technological reaction depth is inadequate, and process flow is simple, and product is unable to satisfy the growing quality requirement in market.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of production technology of naphthenic base lubricating oil, with ring
The decompression line oil that alkyl crude distillation obtains is raw material, and raw material after pretreatment, mixes with hydrogen in reaction system, adds
The isomerization of saturation, n-alkane of demetalization, desulfurization, nitrogen reaction and unsaturated hydrocarbons etc. occurs in the reactor for heat, instead
Answer isolated naphthenic base lubricating oil various products of the product Jing Guo fractionating system, including transformer oil, refrigerator oil, rubber
Glue plasticizer, arene content is not more than 1% (wt) in product, and base oil product yield is not less than 90%.
The production technology of naphthenic base lubricating oil of the invention, follows the steps below:
(1) naphthenic base feedstock oil mixes in hydrogenator with hydrogen after backwash filter, wherein described plus hydrogen
Reactor by first reactor, second reactor and third reactor group at；Wherein first reactor is built-in fills out hydrofinishing and urges
Agent, 350~380 DEG C of temperature, 14~17MPa of pressure, hydrodemetallization, desulfurization, nitrogen reaction and aromatic hydrocarbons occur herein for feedstock oil
Saturated reaction；Installation hydrodewaxing catalyst in second reactor, 350~380 DEG C of temperature, 14~17Mpa of pressure, further
While purification, the high macromolecular n-alkane of condensation point is removed；Install noble metal post-refining catalyst, temperature in third reactor additional
220~280 DEG C, 14~17Mpa of pressure of degree, improves the low temperature flow of oil product, and remove metal, sulphur, nitrogen class impurity；
(2) gas-phase product that third reactor obtains is washed after tower removes hydrogen sulfide after circulating hydrogen compressor compresses through ammonia,
Hydrogenator is returned as recycle hydrogen；Low point of obtained gas enters full factory's fuel gas pipe network as fuel, and acid water sends out boundary
Area's processing；Low point of obtained oil is sent to fractionating system, the byproduct after atmospheric fractional tower fractionation respectively enter naphtha tank field and
Kerosene tank field, major product further pass through vacuum fractionation tower, and fractionation obtains transformer oil, refrigerator oil and rubber plastizing agent.
Compared with prior art, the features of the present invention and beneficial effect are:
(1) naphthenic base feedstock oil of the present invention is mixed in reaction system after pretreatment with hydrogen, is heated, in reactor
The isomerization of middle saturation, the n-alkane that demetalization, desulfurization, nitrogen reaction and unsaturated hydrocarbons occurs etc., reaction product is through excessive
Evaporate the isolated various products of system.
Wherein each bed catalyst rational gradation composition of reactor, catalyst remove impurity elimination under suitable reaction condition as far as possible
Matter makes product meet quality requirement: first reactor is built-in to fill out Hydrobon catalyst, raw material occur herein hydrodemetallization,
The reactions such as desulfurization, nitrogen reaction and aromatic hydrocarbons saturation, the most of nonideal lubricating oil component of removal.Second reactor is built-in to be dosed
Hydrogen catalyst for refining and pour point depression catalyst remove the high macromolecular n-alkane of condensation point while further purification.Third platform
Reactor filling is noble metal catalyst, and alkene, aromatic hydrocarbons saturated reaction occurs, and reduces oil pour point.This three reactors are
The core of the present apparatus, improves the low temperature flow of oil product herein, and removes the impurity such as metal, sulphur, nitrogen, meets environmental protection and adds
Add the requirement such as dissolubility.
(2) reaction temperature, pressure of reactor be by it is long-term, repeatedly, laboratory lab scale and software simulation obtain
, wherein key reaction, which occurs, to be had:
1) hydrodemetallization is reacted
2) hydrodesulfurization, nitrogen reaction
3) hydrocracking reaction and aromatic hydrocarbons saturated reaction
(3) rational design of whole set process of the present invention, so that oil product is under the conditions ofs suitable temperature, pressure, hydrogen partial pressure etc.,
A series of reaction occurs, has not only reached reaction effect, but also be unlikely to overreaction, base oil yield is caused to lose, Neng Gougai
Kind product pour point, Improving The Quality of Products make heavier component in oil product that cracking reaction occur, generate the component for being conducive to base oil, with
Purpose product yield is mentioned, arene content is not more than 1% (wt) in final products, has higher baseline oil product yield, is not less than
90%.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Now in conjunction with embodiment, the present invention is further described.
Embodiment 1
The production technology of the naphthenic base lubricating oil of the present embodiment, as shown in Figure 1, following the steps below:
(1) naphthenic base feedstock oil mixes in hydrogenator with hydrogen after backwash filter, wherein described plus hydrogen
Reactor by first reactor, second reactor and third reactor group at；Wherein first reactor is built-in fills out hydrofinishing and urges
Agent, 360 DEG C of temperature, pressure 16MPa, hydrodemetallization, desulfurization, nitrogen reaction and aromatic hydrocarbons saturated reaction occur herein for feedstock oil；
It installs hydrodewaxing catalyst in second reactor additional, 370 DEG C of temperature, pressure 15Mpa, while further purification, removes solidifying
The high macromolecular n-alkane of point；Installation noble metal post-refining catalyst in third reactor, 280 DEG C of temperature, pressure
17Mpa, improves the low temperature flow of oil product, and removes metal, sulphur, nitrogen class impurity；
(2) gas-phase product that third reactor obtains is washed after tower removes hydrogen sulfide after circulating hydrogen compressor compresses through ammonia,
Hydrogenator is returned as recycle hydrogen；Low point of obtained gas enters full factory's fuel gas pipe network as fuel, and acid water sends out boundary
Area's processing；Low point of obtained oil is sent to fractionating system, the byproduct after atmospheric fractional tower fractionation respectively enter naphtha tank field and
Kerosene tank field, major product further pass through vacuum fractionation tower, and fractionation obtains transformer oil, refrigerator oil and rubber plastizing agent, produce
Product yield and quality are as shown in table 1.
Embodiment 2
The production technology of the naphthenic base lubricating oil of the present embodiment, as shown in Figure 1, following the steps below:
(1) naphthenic base feedstock oil mixes in hydrogenator with hydrogen after backwash filter, wherein described plus hydrogen
Reactor by first reactor, second reactor and third reactor group at；Wherein first reactor is built-in fills out hydrofinishing and urges
Agent, 350 DEG C of temperature, pressure 17MPa, hydrodemetallization, desulfurization, nitrogen reaction and aromatic hydrocarbons saturated reaction occur herein for feedstock oil；
It installs hydrodewaxing catalyst in second reactor additional, 380 DEG C of temperature, pressure 14Mpa, while further purification, removes solidifying
The high macromolecular n-alkane of point；Installation noble metal post-refining catalyst in third reactor, 220 DEG C of temperature, pressure
15Mpa, improves the low temperature flow of oil product, and removes metal, sulphur, nitrogen class impurity；
(2) gas-phase product that third reactor obtains is washed after tower removes hydrogen sulfide after circulating hydrogen compressor compresses through ammonia,
Hydrogenator is returned as recycle hydrogen；Low point of obtained gas enters full factory's fuel gas pipe network as fuel, and acid water sends out boundary
Area's processing；Low point of obtained oil is sent to fractionating system, the byproduct after atmospheric fractional tower fractionation respectively enter naphtha tank field and
Kerosene tank field, major product further pass through vacuum fractionation tower, and fractionation obtains transformer oil, refrigerator oil and rubber plastizing agent, produce
Product yield and quality are as shown in table 1.
1 lubricating base oils finished product yield of table and product quality table
As it can be seen from table 1 using the production technology of naphthenic base lubricating oil of the invention, base grease oil product
Yield, which has, significantly to be promoted, and product quality meets national standard.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of production technology of naphthenic base lubricating oil, it is characterised in that follow the steps below:
(1) naphthenic base feedstock oil mixes in hydrogenator with hydrogen after backwash filter, wherein the hydrogenation reaction
Device by first reactor, second reactor and third reactor group at；Wherein first reactor is built-in fills out Hydrobon catalyst,
Hydrodemetallization, desulfurization, nitrogen reaction and aromatic hydrocarbons saturated reaction occur herein for feedstock oil；Hydrodewaxing is installed in second reactor additional to urge
Agent removes the high macromolecular n-alkane of condensation point while further purification；Install noble metal supplement in third reactor additional
Catalyst for refining, improves the low temperature flow of oil product, and removes metal, sulphur, nitrogen class impurity；
(2) gas-phase product that third reactor obtains is washed after tower removes hydrogen sulfide after circulating hydrogen compressor compresses through ammonia, as
Recycle hydrogen returns to hydrogenator；Low point of obtained gas enters full factory's fuel gas pipe network as fuel, and acid water is sent out at battery limit (BL)
Reason；Low point of obtained oil is sent to fractionating system, and the byproduct after atmospheric fractional tower fractionation respectively enters naphtha tank field and kerosene
Tank field, major product further pass through vacuum fractionation tower, and fractionation obtains transformer oil, refrigerator oil and rubber plastizing agent.
2. a kind of production technology of naphthenic base lubricating oil according to claim 1, it is characterised in that described first
350~380 DEG C of temperature of reactor, 14~17MPa of pressure.
3. a kind of production technology of naphthenic base lubricating oil according to claim 1, it is characterised in that described second
350~380 DEG C of temperature of reactor, 14~17MPa of pressure.
4. a kind of production technology of naphthenic base lubricating oil according to claim 1, it is characterised in that the third
220~380 DEG C of temperature of reactor, 14~17MPa of pressure.
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| CN201811650902.4A CN109852465A (en) | 2018-12-31 | 2018-12-31 | A kind of production technology of naphthenic base lubricating oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115558522A (en) * | 2022-09-29 | 2023-01-03 | 盘锦北方沥青股份有限公司 | Operation method of reduced pressure fractionation system in naphthenic base crude oil processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006055306A1 (en) * | 2004-11-15 | 2006-05-26 | Exxonmobil Research And Engineering Company | A lubricant upgrading process to improve low temperature properties using solvent dewaxing follewd by hydrodewaxing over a catalyst |
| CN103102956A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Hydrogenation production method for high-viscosity index lubricant base oil |
| CN103773465A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Method for production of high viscosity index lubricant base oil by combination technology |
| CN103289738A (en) * | 2013-06-25 | 2013-09-11 | 中石化南京工程有限公司 | Combination method for producing high-grade lubricant base oil by hydrogenating hydrocracking tail oil |
| CN104449841A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气股份有限公司 | Production method of low-pour-point high-viscosity bright stock |
| CN104611032A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Process method for producing lubricating oil base oil through high dry point raw material |
| CN108699468A (en) * | 2015-11-13 | 2018-10-23 | 埃克森美孚研究工程公司 | High viscosity oil base stock composition |
| CN108329978A (en) * | 2018-01-20 | 2018-07-27 | 盘锦北方沥青股份有限公司 | A kind of polyethers Screw air compressor oil composition and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115558522A (en) * | 2022-09-29 | 2023-01-03 | 盘锦北方沥青股份有限公司 | Operation method of reduced pressure fractionation system in naphthenic base crude oil processing |
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