CN108165304B - A kind of system for extracting special solvent oil from stable light hydrocarbon - Google Patents
A kind of system for extracting special solvent oil from stable light hydrocarbon Download PDFInfo
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- CN108165304B CN108165304B CN201810084562.7A CN201810084562A CN108165304B CN 108165304 B CN108165304 B CN 108165304B CN 201810084562 A CN201810084562 A CN 201810084562A CN 108165304 B CN108165304 B CN 108165304B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The system that the invention discloses a kind of to extract special solvent oil from stable light hydrocarbon, belongs to oil-refining chemical technical field, and raw material stable light hydrocarbon is sent into weight-removing column, obtains light component oil and heavy aromatics；Light component oil is sent into lightness-removing column, obtains byproduct stable light hydrocarbon and C6‑C7Component；By C6‑C7Group is distributed into dehexanizer, obtains hexane oil and heptane oil；Hexane oil is sent into hexane oil knockout tower, obtains isohexane and n-hexane；Heptane oil is sent into heptane oil knockout tower, obtains isoheptane and normal heptane.The system includes: weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower.The exemplary technical solution of the present invention, realizes the efficient utilization of stable light hydrocarbon, and limited resource is made to play maximum benefit, meets the market demand while promoting Business Economic Benefit.
Description
Technical field
It is specifically a kind of that special solvent oil is extracted from stable light hydrocarbon the invention belongs to oil-refining chemical technical field
System.
Background technique
Stable light hydrocarbon is one of oil product, may separate out a variety of Organic Ingredients, and in China, stable light hydrocarbon supply is very tight
, oil-refining chemical enterprise is traditionally the means for taking weight to cut to the utilization of stable light hydrocarbon, using light oil as ethylene raw
Or gasoline blend component, as reformer feed, this Land use systems fail sufficiently to realize its optimization on hydrocarbon system's composition heavy oil
It utilizes:
1, contain certain colloid in raw material stable light hydrocarbon, traditional separation method is easy coking, and blocking tower is easy after coking
Internals are not achieved separation accuracy and have an effect on yield；
2, contain part cycloalkane and aromatic hydrocarbon in ethylene raw (light oil C3-C6), influence triolefin mass yield, and easily raw
It is burnt；
3, contain part n-alkane in reformer feed (heavy oil C7-C11), influence reformer operation and liquid quality is received
Rate；
4, current extract equipment, weight-removing column height is higher, and investment is big, steam consumption is big, at high cost.
Therefore, how to efficiently use limited resource, it is made to play maximum benefit in production, it has also become oil-refining chemical
The major issue that integration firm is faced.
Summary of the invention
In order to solve above-mentioned deficiency in the prior art, the purpose of the present invention is to provide one kind to extract from stable light hydrocarbon
The system of special solvent oil sufficiently realizes the Optimum utilization of stable light hydrocarbon.
The technical solution adopted by the present invention to solve the technical problems are as follows:
Provide a kind of system that special solvent oil is extracted from stable light hydrocarbon, including weight-removing column, lightness-removing column, de- hexane
Tower, hexane oil knockout tower and heptane oil knockout tower, the tower top of the weight-removing column are connected to the lightness-removing column, the tower of the lightness-removing column
Bottom is connected to the dehexanizer, and the tower top of the dehexanizer is connected to the hexane oil knockout tower, the dehexanizer
Tower bottom is connected to the heptane oil knockout tower；
Wherein, the top inside the weight-removing column is provided with upper section filling batch, and the lower part inside weight-removing column is provided with down
Section filling batch, is provided with liquid collecting distributer, the liquid between the upper section filling batch and lower section filling batch
Collecting distributor includes collecting part and distributed elements, and the distributed elements are mounted on the collecting part and distributed elements
Height is lower than collecting part, and the collecting part collects the liquid of upper section filling batch bottom and is conducted into distributed elements, point
Cloth component is evenly distributed to liquid on lower section filling batch.
Further, the collecting part includes the open slot being made of bottom surface and side wall, the sky inside the open slot
Between be interconnected overall space, the serpentine-like bending of the side wall simultaneously constitutes end to end closed-loop, and the side wall is located at
The part of inside is bottom inclined inclined surface inwardly, to form central collection slot at the middle part of collecting part；Described point
Cloth component is the diversion pipe for being uniformly mounted on the side-wall outer side of collecting part, and the diversion pipe is vertically-mounted and the top of diversion pipe
Lower than the top edge of the side wall of collecting part.
Further, the central collection slot is arranged along a straight line, the sidewall symmetry arrangement of central collection slot two sides.
Further, the tube wall of the diversion pipe crimps in the shape of a spiral.
Further, between the bottom end of the liquid collecting distributer and the top of the lower section filling batch it is vertical away from
From for H, 900mm≤H≤1100mm.
Further, the tower of the weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower
Top is equipped with condenser and is connected with fixed gas surge tank.
Further, the tower of the weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower
Top is respectively connected with return tank.
Further, the fixed gas surge tank is connected to out-of-bounds gas recovery system for oil.
Compared with prior art, the invention has the benefit that
1, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention is realized steady by separation layer by layer
Determine making full use of for lighter hydrocarbons, this method improves separation essence by the setting to knockout tower operation temperatures and operating pressure at different levels
Degree, it is different from traditional weight cutting, separation accuracy can be improved to isolating C6-C7Component and C8-C12Component improves triolefin
Yield improves the liquid yield and product octane number of reformation, and improving product octane number can be improved the anti-knock properties of product, promotes product
Quality.
2, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, on-condensible gas enter after surge tank
Out-of-bounds gas recovery system for oil, the product of each tower top can partial reflux realize repetitive cycling separation, obtain limited raw material
To making full use of to the greatest extent, the maximization of benefit is realized for enterprise, and meets the environmental protection concept of country's promotion.
3, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, preciseness of separation is high, may separate out
C6-C7Component and C8-C12Subsequent processing is carried out to said components again after component, efficiently separates out the impurity and shakiness in product
Determine part, obtained superior product quality.
4, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, setting weight-removing column, take off oneself at lightness-removing column
Alkane tower, hexane oil knockout tower and heptane oil knockout tower, it is rationally distributed, it is simple and compact for structure, reduce operating severity.
5, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, weight-removing column inside setting liquid are collected
The function of the collection of liquid and distribution is integrated in one by distributor, liquid collecting distributer, and distributed elements are directly installed on collection
It, can be by liquid collecting distributer and lower section while guaranteeing that liquid can be evenly distributed on lower section filling batch on component
Vertical range between filling batch foreshortens to 1000mm or so, reduces the whole height of weight-removing column, to reduce investment, saves
Steam consumption is saved, device operating cost is reduced.
6, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, is arranged liquid collecting distributer, arrives
Liquid up to lower section filling batch is become being uniformly distributed by traditional in the unordered sprinkling of shape spray, promotes lower section filling batch
Separative efficiency.
7, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, the collection portion of liquid collecting distributer
Part be equipped with central collection slot, and the side wall around central collection slot be it is inclined, coke powder can flow downward along inclined surface, avoid
The diversion pipe of coke powder blocking liquid collecting distributer.
8, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, central collection slot are arranged along a straight line,
The sidewall symmetry of central collection slot two sides is arranged, and side wall is serpentine bend shape, reaches the maximization of liquid distribution uniformity coefficient.
9, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, the tube wall of diversion pipe are rolled up in the shape of a spiral
Song not only increases the tie point of diversion pipe and collecting part compared with traditional round tube, increases its installation strength, and to liquid
The distributed effect of body is more preferable.
10, the exemplary system that special solvent oil is extracted from stable light hydrocarbon of the present invention, setting fixed gas surge tank, reflux
Tank etc., system good operating stability, raw material availability are high.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the schematic diagram of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of one weight-removing column of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of one liquid collecting distributer of the embodiment of the present invention.
In figure: 1 weight-removing column, 2 upper section filling batch, 3 liquid collecting distributers, 31 collecting parts, 32 distributed elements, in 33
Heart collecting tank, 4 lower section filling batch.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one:
As shown in Figure 1, present embodiments providing a kind of method for extracting special solvent oil from stable light hydrocarbon, comprising:
S1: raw material stable light hydrocarbon feeding weight-removing column is obtained into light component in weight-removing column overhead condensation after weight-removing column separates
Oil obtains heavy aromatics in weight-removing column tower bottom, wherein the operation temperature of weight-removing column tower top is 70 DEG C, operating pressure 100KPa, is taken off
The operation temperature of weight tower tower bottom is 140 DEG C, operating pressure 155KPa；
S2: light component oil feeding lightness-removing column is obtained into byproduct in lightness-removing column overhead condensation after lightness-removing column separates
Stable light hydrocarbon obtains C in lightness-removing column tower bottom6-C7Component, wherein the operation temperature of lightness-removing column tower top is 55 DEG C, operating pressure is
235KPa, the operation temperature of lightness-removing column tower bottom is 110 DEG C, operating pressure 290KPa；
S3: by the C6-C7Group is distributed into dehexanizer, after dehexanizer separates, obtains in dehexanizer overhead condensation
Hexane oil obtains heptane oil in dehexanizer tower bottom, wherein the operation temperature of dehexanizer tower top is 60 DEG C, operating pressure is
100KPa, the operation temperature of dehexanizer tower bottom is 70 DEG C, operating pressure 155KPa；
S4: sending the hexane oil into hexane oil knockout tower, after the separation of hexane oil knockout tower, in hexane oil knockout tower tower
Top condensation obtains isohexane, obtains n-hexane in hexane oil knockout tower tower bottom, wherein the operation temperature of hexane oil separation column overhead
For 85 DEG C, operating pressure 100KPa, the operation temperature of hexane oil knockout tower tower bottom is 100 DEG C, operating pressure 155KPa；
S5: sending the heptane oil into heptane oil knockout tower, after the separation of heptane oil knockout tower, in heptane oil knockout tower tower
Top condensation obtains isoheptane, obtains normal heptane in heptane oil knockout tower tower bottom, wherein the operation temperature of heptane oil separation column overhead
For 70 DEG C, operating pressure 100KPa, the operation temperature of heptane oil knockout tower tower bottom is 140 DEG C, operating pressure 155KPa.
Weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top, it is condensed not
Solidifying gas is sent into out-of-bounds gas recovery system for oil after entering fixed gas surge tank, pollutes the environment to avoid fixed gas.
Weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top, obtained production
The product meeting circulating repetition separation of the equal partial reflux of product, partial reflux improves triolefin yield so that separation is more thorough, improves heavy
Whole liquid yield.
Light component oil is C6And following components, heavy aromatics C8-C12Component.
It should be noted that although describing the operation of the method for the present invention in the above-described embodiments with particular order, this is simultaneously
Undesired or hint must execute these operations in this particular order, or have to carry out and operate ability shown in whole
Realize desired result.On the contrary, the step in embodiment can change and execute sequence.For example, above-mentioned S4's and S5 executes sequence
It can exchange, first carry out S4, then execute S5.Additionally or alternatively, it is convenient to omit multiple steps are merged into one by certain steps
A step executes, and/or a step is decomposed into execution of multiple steps.For example, above-mentioned S4 and S5 can be performed simultaneously.
The present embodiment additionally provides a kind of system that special solvent oil is extracted from stable light hydrocarbon, including weight-removing column, de- light
Tower, dehexanizer, hexane oil knockout tower and heptane oil knockout tower, the tower top of the weight-removing column is connected to the lightness-removing column, described
The tower bottom of lightness-removing column is connected to the dehexanizer, and the tower top of the dehexanizer is connected to the hexane oil knockout tower, described
The tower bottom of dehexanizer is connected to the heptane oil knockout tower.
As shown in Fig. 2, the top inside weight-removing column 1 is provided with upper section filling batch 2, the lower part setting inside weight-removing column 1
There is lower section filling batch 4, be provided with liquid collecting distributer 3 between the upper section filling batch 2 and lower section filling batch 4,
As shown in figure 3, the liquid collecting distributer 3 includes collecting part 31 and distributed elements 32, the distributed elements 32 are mounted on
On the collecting part 31 and the height of distributed elements 32 is lower than collecting part 31, and the collecting part 31 collects upper section packed bed
The liquid of 2 bottom of layer is simultaneously conducted into distributed elements 32, and distributed elements 32 are evenly distributed to liquid on lower section filling batch 4.
Such as Fig. 3, collecting part 31 includes the open slot being made of bottom surface and side wall, and the space inside the open slot is phase
Intercommunicated overall space, the side wall is serpentine-like to be bent and constitutes end to end closed-loop, and the side wall is located inside
Part is bottom inclined inclined surface inwardly, to form central collection slot 33 at the middle part of collecting part；The distribution portion
Part 32 is the diversion pipe for being uniformly mounted on the side-wall outer side of collecting part 31, and the diversion pipe is vertically-mounted and the top of diversion pipe
Lower than the top edge of the side wall of collecting part 31.
Central collection slot 33 is arranged along a straight line, the sidewall symmetry arrangement of 33 two sides of central collection slot.The tube wall of diversion pipe is in
Helical form curling, as seen from Figure 3, one flaky material of use that helical form curling refers to crimp structure from one end to the other side
At diversion pipe, when installing on collecting part 31, outer surface of tube wall forms a fixed connection diversion pipe with collecting part 31, curling
It is located at external one end afterwards also to form a fixed connection with collecting part 31, increases its installation strength, and imitate to the distribution of liquid
Fruit is more preferable.
Vertical range between the bottom end of liquid collecting distributer and the top of the lower section filling batch is H, 900mm≤
H≤1100mm.H is preferably 1000mm, is arranged after liquid collecting distributer 3, liquid on lower section filling batch 4 has been effectively ensured
Be uniformly distributed, reduce the height of tower body.
Weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top be equipped with condensation
Device is simultaneously connected with fixed gas surge tank.Fixed gas surge tank can be kept in and be buffered to on-condensible gas, slow by fixed gas
The buffering of tank is rushed, fixed gas can enter subsequent device and process with stable air pressure, avoid the impact to system, make system
Work it is more reliable and more stable.
Weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top be respectively connected with back
Flow tank.Return tank is connected, the product condensed partially enters subsequent processing, the product meeting of reflux through return tank partial reflux
Circulating repetition separation, makes full use of limited raw material to the greatest extent, and the maximization of benefit is realized for enterprise, and
Reduce byproduct and discharge, meets the environmental protection concept of country's promotion.
Fixed gas surge tank is connected to out-of-bounds gas recovery system for oil.Fixed gas in fixed gas surge tank enters out-of-bounds oil gas
Recovery system is recycled, and reduces discharge, Improve Efficiency.
To improve production efficiency, guarantee the stable operation of system, in weight-removing column, lightness-removing column, dehexanizer, the separation of hexane oil
Reflux pump is arranged in the tower top of tower and heptane oil knockout tower, pumps at tower bottom setting bottom and sends cooler outside, so that higher level's product
Next procedure can be can smoothly enter into, and extend the service life of system.In weight-removing column, lightness-removing column, dehexanizer, the separation of hexane oil
The inside of tower and heptane oil knockout tower is respectively arranged with reboiler.
The material balance table of the present embodiment is shown in Table 1, and can reach high-purity through the obtained alkane product of separation and Extraction
The requirement of degree.
Table 1: material balance table:
Embodiment two:
Present embodiments provide a kind of method that special solvent oil is extracted from stable light hydrocarbon, comprising:
S1: raw material stable light hydrocarbon feeding weight-removing column is obtained into light component in weight-removing column overhead condensation after weight-removing column separates
Oil obtains heavy aromatics in weight-removing column tower bottom, wherein and the operation temperature of weight-removing column tower top is 74.5 DEG C, operating pressure 105KPa,
The operation temperature of weight-removing column tower bottom is 145.4 DEG C, operating pressure 160KPa；
S2: light component oil feeding lightness-removing column is obtained into byproduct in lightness-removing column overhead condensation after lightness-removing column separates
Stable light hydrocarbon obtains C in lightness-removing column tower bottom6-C7Component, wherein the operation temperature of lightness-removing column tower top is 58.9 DEG C, operating pressure
For 240KPa, the operation temperature of lightness-removing column tower bottom is 113.6 DEG C, operating pressure 295KPa；
S3: by the C6-C7Group is distributed into dehexanizer, after dehexanizer separates, obtains in dehexanizer overhead condensation
Hexane oil obtains heptane oil in dehexanizer tower bottom, wherein the operation temperature of dehexanizer tower top is 63 DEG C, operating pressure is
105KPa, the operation temperature of dehexanizer tower bottom is 77 DEG C, operating pressure 160KPa；
S4: sending the hexane oil into hexane oil knockout tower, after the separation of hexane oil knockout tower, in hexane oil knockout tower tower
Top condensation obtains isohexane, obtains n-hexane in hexane oil knockout tower tower bottom, wherein the operation temperature of hexane oil separation column overhead
For 91.7 DEG C, operating pressure 105KPa, the operation temperature of hexane oil knockout tower tower bottom is 107.2 DEG C, operating pressure is
160KPa；
S5: sending the heptane oil into heptane oil knockout tower, after the separation of heptane oil knockout tower, in heptane oil knockout tower tower
Top condensation obtains isoheptane, obtains normal heptane in heptane oil knockout tower tower bottom, wherein the operation temperature of heptane oil separation column overhead
For 74.5 DEG C, operating pressure 105KPa, the operation temperature of heptane oil knockout tower tower bottom is 145.4 DEG C, operating pressure is
160KPa。
Other features of the present embodiment are the same as example 1, and details are not described herein.
The material balance table of the present embodiment is shown in Table 2, and can reach high-purity through the obtained alkane product of separation and Extraction
The requirement of degree.
Table 2: material balance table:
Embodiment three:
Present embodiments provide a kind of method that special solvent oil is extracted from stable light hydrocarbon, comprising:
S1: raw material stable light hydrocarbon feeding weight-removing column is obtained into light component in weight-removing column overhead condensation after weight-removing column separates
Oil obtains heavy aromatics in weight-removing column tower bottom, wherein the operation temperature of weight-removing column tower top is 80 DEG C, operating pressure 110KPa, is taken off
The operation temperature of weight tower tower bottom is 150 DEG C, operating pressure 165KPa；
S2: light component oil feeding lightness-removing column is obtained into byproduct in lightness-removing column overhead condensation after lightness-removing column separates
Stable light hydrocarbon obtains C in lightness-removing column tower bottom6-C7Component, wherein the operation temperature of lightness-removing column tower top is 65 DEG C, operating pressure is
245KPa, the operation temperature of lightness-removing column tower bottom is 120 DEG C, operating pressure 300KPa；
S3: by the C6-C7Group is distributed into dehexanizer, after dehexanizer separates, obtains in dehexanizer overhead condensation
Hexane oil obtains heptane oil in dehexanizer tower bottom, wherein the operation temperature of dehexanizer tower top is 70 DEG C, operating pressure is
110KPa, the operation temperature of dehexanizer tower bottom is 80 DEG C, operating pressure 165KPa；
S4: sending the hexane oil into hexane oil knockout tower, after the separation of hexane oil knockout tower, in hexane oil knockout tower tower
Top condensation obtains isohexane, obtains n-hexane in hexane oil knockout tower tower bottom, wherein the operation temperature of hexane oil separation column overhead
For 95 DEG C, operating pressure 110KPa, the operation temperature of hexane oil knockout tower tower bottom is 115 DEG C, operating pressure 165KPa；
S5: sending the heptane oil into heptane oil knockout tower, after the separation of heptane oil knockout tower, in heptane oil knockout tower tower
Top condensation obtains isoheptane, obtains normal heptane in heptane oil knockout tower tower bottom, wherein the operation temperature of heptane oil separation column overhead
For 80 DEG C, operating pressure 110KPa, the operation temperature of heptane oil knockout tower tower bottom is 150 DEG C, operating pressure 165KPa.
Other features of the present embodiment are the same as example 1, and details are not described herein.
The material balance table of the present embodiment is shown in Table 3, and can reach high-purity through the obtained alkane product of separation and Extraction
The requirement of degree.
Table 3: material balance table:
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Except for the technical features described in the specification, remaining technical characteristic is the known technology of those skilled in the art, is prominent
Innovative characteristics of the invention out, details are not described herein for remaining technical characteristic.
Claims (5)
1. a kind of system for extracting special solvent oil from stable light hydrocarbon, characterized in that including weight-removing column, lightness-removing column, de- hexane
Tower, hexane oil knockout tower and heptane oil knockout tower, the tower top of the weight-removing column are connected to the lightness-removing column, the tower of the lightness-removing column
Bottom is connected to the dehexanizer, and the tower top of the dehexanizer is connected to the hexane oil knockout tower, the dehexanizer
Tower bottom is connected to the heptane oil knockout tower；
Wherein, the top inside the weight-removing column is provided with upper section filling batch, and the lower part inside weight-removing column is provided with lower section and fills out
Expect bed, liquid collecting distributer is provided between the upper section filling batch and lower section filling batch, the liquid is collected
Distributor includes collecting part and distributed elements, and the distributed elements are mounted on the collecting part and the height of distributed elements
Lower than collecting part, the collecting part collects the liquid of upper section filling batch bottom and is conducted into distributed elements, distribution portion
Part is evenly distributed to liquid on lower section filling batch；
The collecting part includes the open slot being made of bottom surface and side wall, and the space inside the open slot is to be interconnected
Overall space, the side wall is serpentine-like to be bent and constitutes end to end closed-loop, and the part that the side wall is located inside is bottom
Portion inclined inclined surface inwardly, to form central collection slot at the middle part of collecting part；The distributed elements are uniformly to pacify
Mounted in the diversion pipe of the side-wall outer side of collecting part, the diversion pipe is vertically-mounted and the top of diversion pipe is lower than collecting part
The top edge of side wall.
2. the system according to claim 1 for extracting special solvent oil from stable light hydrocarbon, characterized in that receive at the center
Collection slot is arranged along a straight line, the sidewall symmetry arrangement of central collection slot two sides.
3. the system according to claim 1 for extracting special solvent oil from stable light hydrocarbon, characterized in that the diversion pipe
Tube wall crimp in the shape of a spiral.
4. the system according to claim 1 for extracting special solvent oil from stable light hydrocarbon, characterized in that the liquid is received
Integrate the vertical range between the bottom end of distributor and the top of the lower section filling batch as H, 900mm≤H≤1100mm.
5. the system according to claim 1 for extracting special solvent oil from stable light hydrocarbon, characterized in that the de- weight
Tower, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top be equipped with condenser and be connected with not
Solidifying gas surge tank, the fixed gas surge tank are connected to out-of-bounds gas recovery system for oil；
And/or the weight-removing column, lightness-removing column, dehexanizer, hexane oil knockout tower and heptane oil knockout tower tower top connect
It is connected to return tank.
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| CN111471483A (en) * | 2019-01-23 | 2020-07-31 | 内蒙古伊泰宁能精细化工有限公司 | Method for producing series of high-purity isoparaffins |
| CN112225633A (en) * | 2020-10-29 | 2021-01-15 | 洛阳金达石化有限责任公司 | Production method of normal hexane containing heptane raw material |
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| CN204933481U (en) * | 2015-08-21 | 2016-01-06 | 天津科林泰克科技有限公司 | A kind of band is from the liquid distribution trough of distributed architecture |
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| CN106824007A (en) * | 2017-02-22 | 2017-06-13 | 河北工业大学 | A kind of liquid distribution trough with mass transfer function |
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