CN205965074U - Accurate separator of high -purity n -heptane - Google Patents
Accurate separator of high -purity n -heptane Download PDFInfo
- Publication number
- CN205965074U CN205965074U CN201620642055.7U CN201620642055U CN205965074U CN 205965074 U CN205965074 U CN 205965074U CN 201620642055 U CN201620642055 U CN 201620642055U CN 205965074 U CN205965074 U CN 205965074U
- Authority
- CN
- China
- Prior art keywords
- isoheptane
- normal heptane
- rectifying column
- heptane
- rectifying
- Prior art date
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- Expired - Fee Related
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- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 title claims abstract description 236
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 claims abstract description 298
- 238000004821 distillation Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 32
- 238000005204 segregation Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000010992 reflux Methods 0.000 claims description 14
- -1 heptan Alkane Chemical class 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007965 rubber solvent Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- CMXPERZAMAQXSF-UHFFFAOYSA-M sodium;1,4-bis(2-ethylhexoxy)-1,4-dioxobutane-2-sulfonate;1,8-dihydroxyanthracene-9,10-dione Chemical compound [Na+].O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=CC=C2O.CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC CMXPERZAMAQXSF-UHFFFAOYSA-M 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Abstract
The utility model provides an accurate separator of high -purity n -heptane, relates to a n -heptane processingequipment, draws together isoheptane rectification system and n -heptane purifying and separating by distillation system, the utility model discloses the heptane is accurate to be separated to mixing to adopt earlier isoheptane rectification system, then by the accurate separation of n -heptane rectification system, purification n -heptane, obtains high -purity n -heptane, the pre -heater of isoheptane rectification system and n -heptane purifying and separating by distillation system, heater reach accurate separation and energy -conserving purpose to the waste heat make full use of of system.
Description
【Technical field】
This utility model is related to a kind of normal heptane processing unit (plant), especially relates to a kind of accurate separation of high-purity normal heptane and fills
Put.
【Background technology】
Known, normal heptane is a kind of typical non-polar solven, industrially one of widely used varsol, just
Heptane is widely used in producing coating, dyestuff, pigment, ink, adhesive, medicine, pesticide, food, feed additive, essence perfume
Material, cosmetics；Sterling normal heptane is used as the reference material of chromatography, the standard solvent of octane number determination, is applied to organic synthesiss,
The preparation of experiment reagent, the extractant as animal and plant fat and quick-drying rubber adhesive, rubber solvent, are also used for manufacturing
Cosmetics and be used as cleaning dope, the solvent of paint, quick-drying ink and printer parts.
In recent years, with the fast development of the relevant industries such as the chemical industry of China, medicine, electronics, the need to normal heptane for the China
The amount of asking increases year by year.Due to scientific and technical development, experimental study problem is on the increase, existing high-purity chromatorgaphy reagent master
If to meet the experiment condition of harshness by import, though domestic high purity reagent has production, quality is very unstable, and meets
The not demand of scientific and technological high speed development, therefore, the preparation method of research high-purity organic solvent, China's development in science and technology is had important
Realistic meaning, and alternative import.
Normal heptane is primarily present in 90100 DEG C of petroleum distillates, reforming raffinate oil and No. 120 solvent naphthas.Industrial at present
Mainly adopt rectificating method to produce normal heptane, be difficult to be isolated with conventional distillation；But use precise distillation high energy consumption, production cost
Also relatively, pick-up rate is relatively low, and hardly results in high-purity normal heptane（>99%)；If using special extract rectification method, relatively costly, mistake
Journey is complicated.
List of references
Chinese patent：CN100575322C discloses a kind of work of skellysolve C abstraction with combined production of octane product by pressure swing adsorption
Skill, the investment of this patent equipment is big, high energy consumption, complex process, and product purity 99%.
Chinese patent CN102115356A is to be carried out through silica gel adsorption column, diatomite adsorption post using 98% industrial heptane
Purification, product purity or 98%.
Chinese patent CN105085141A is first to adopt rectification to separate, then carries out extractant extracting rectification technique although obtaining
To the normal heptane of purity 99.314%, but complex process, and equipment investment is big, high energy consumption.
【Content of the invention】
In order to overcome the shortcomings of in background technology, this utility model discloses a kind of high-purity normal heptane precision segregation apparatuss, leads to
Cross high-purity normal heptane product purity that this utility model normal heptane rectifying and purifying system obtains and reach 99.74%.
For achieving the above object, this utility model adopts the following technical scheme that：
A kind of high-purity normal heptane precision segregation apparatuss, including including isoheptane distillation system and normal heptane rectifying and purifying system,
Isoheptane distillation system passes through the normal heptane rectification of isoheptane rectifying tower bottom pump discharge pipeline and normal heptane rectifying and purifying system
Tower feed preheater tube-side inlet connects；Isoheptane distillation system includes isoheptane, isoheptane return tank, isoheptane rectifying column sky
Cooler, isoheptane recycle control valve, isoheptane rectifying column feed preheater, isoheptane rectifying column inlet valve, isoheptane rectifying column
Feed heater, isoheptane rectifier column reflux pump, isoheptane rectifying column, isoheptane rectifying column column bottoms pump, isoheptane rectifying tower
Bottom reboiler, isoheptane rectifying column reboiler heating agent；Normal heptane rectifying and purifying system includes：Normal heptane rectifying column column bottoms pump, just
Heptane rectifying column bottom reboiler, skellysolve E, normal heptane rectifying column reboiler heating agent, high-purity normal heptane, 10X molecular sieve, just
Heptane treater, normal heptane rectifier column reflux pump, normal heptane return tank, normal heptane recycle control valve, normal heptane rectifying column air cooling
Device, normal heptane rectifying column feed preheater, normal heptane rectifying column, normal heptane rectifying column inlet valve, the charging of normal heptane rectifying column add
Hot device.
Described high-purity normal heptane precision segregation apparatuss, the raw material heptane of isoheptane distillation system enters different heptan by pipeline
Alkane rectification tower feed preheater tube-side inlet, the outlet of isoheptane rectifying column feed preheater tube side is by pipeline and isoheptane rectification
Tower feed heater tube-side inlet connects, and the outlet of isoheptane rectifying column feed heater tube side is by pipeline and isoheptane rectifying column
Material valve connects, and raw material heptane enters isoheptane rectifying column through isoheptane rectifying column material valve；Isoheptane rectifying column tower top material leads to
Piping enters isoheptane rectifying column feed preheater shell side inlet to raw material heptane heat exchange, isoheptane rectifying column feed preheater
Shell-side outlet is connected cooled, the outlet of isoheptane rectifying column air cooler and isoheptane backflow with isoheptane rectifying column air cooler entrance
Tank connects；An isoheptane part in isoheptane return tank is entered by isoheptane recycle control valve by isoheptane rectifier column reflux pump
Enter isoheptane rectifying tower top to be flowed back, another part is exactly product isoheptane；Isoheptane rectifying column materials at bottom of tower passes through pipeline
Enter isoheptane rectifying column feed heater shell side inlet to raw material heptane heat exchange, isoheptane rectifying column feed heater shell side goes out
Mouth connects isoheptane rectifying tower bottom pump intake, isoheptane rectifying tower bottom pump discharge and normal heptane rectification and purification system by pipeline
System connects；Isoheptane rectifying column reboiler heating agent carries out to isoheptane rectifying column adding by isoheptane rectifying column bottom reboiler
Heat.
Described high-purity normal heptane precision segregation apparatuss, normal heptane rectifying column feed preheater tube-side inlet connects isoheptane
Rectifying tower bottom pump discharge, the outlet of normal heptane rectifying column feed preheater tube side is by pipeline and the charging heating of normal heptane rectifying column
Device tube-side inlet connects, and the outlet of normal heptane rectifying column feed heater tube side is connected with normal heptane rectifying column material valve by pipeline,
Isoheptane rectifying column materials at bottom of tower enters normal heptane rectifying column through normal heptane rectifying column material valve；Normal heptane rectifying column tower top material
Normal heptane rectifying column feed preheater shell side inlet is entered to isoheptane rectifying column materials at bottom of tower heat exchange, normal heptane essence by pipeline
Evaporate tower feed preheater shell-side outlet to be connected with normal heptane rectifying column air cooler entrance, material is cooled, normal heptane rectifying column is empty
Cooler outlet is connected with normal heptane return tank；A normal heptane part in normal heptane return tank is led to by normal heptane rectifier column reflux pump
Cross normal heptane recycle control valve entrance normal heptane rectifying tower top to be flowed back, another part enters normal heptane treater, through 10X
Molecular sieve adsorption is refining to obtain the high-purity normal heptane of product；Normal heptane rectifying tower bottom skellysolve E enters normal heptane essence by pipeline
Evaporate tower feed heater shell side inlet to material-heat-exchanging, normal heptane rectifying column feed heater shell-side outlet is just connected by pipeline
Heptane rectifying tower bottom pump intake, normal heptane rectifying tower bottom pump discharge passes through pipeline by skellysolve E；Normal heptane rectification tower weight
Boiling device heating agent is heated to normal heptane rectifying column by normal heptane rectifying column bottom reboiler.
Described high-purity normal heptane precision segregation apparatuss, isoheptane rectification is tongue shape float valve tray, or regular rustless steel
Ripple packing, effective tower tray number is 110-150.
Described high-purity normal heptane precision segregation apparatuss, normal heptane rectifying column is tongue shape float valve tray, or regular stainless
Steel ripple packing, effective tower tray number is 110-150.
Described high-purity normal heptane precision segregation apparatuss, normal heptane treater physical dimension is：Diameter phi 500mm ~ φ
1500mm, high 5000mm ~ 20000mm.
Because using technical scheme as above, this utility model has the advantages that：
1st, with the detached skellysolve D of coal base stable light hydrocarbon " normal heptane content 70% " as raw material, through this utility model just
High-purity normal heptane product purity 99.74% that heptane rectifying and purifying system obtains, total arene content is 0.23ppm, sulfur content
0.28ppm, moisture is 33.26ppm.
2nd, raw material skellysolve D is to first pass through preheater, heater heat exchange entrance rectifying column, makes accurate point of high-purity normal heptane
Fully reclaimed, utilized from the waste heat of device, energy-saving effect is reached more than 20%.
3rd, isoheptane distillation system makes the isoheptane in skellysolve D separate thoroughly with normal heptane, different heptan in isoheptane product
Alkane content reaches more than 80%.
4th, the normal heptane rectifying tower bottom of normal heptane rectifying and purifying system obtains the normal octane product of normal octane content 80%.
【Brief description】
Fig. 1 is the process chart of high-purity normal heptane precision segregation apparatuss of the present utility model；
In figure：1st, normal heptane rectifying column column bottoms pump；2nd, normal heptane rectifying column bottom reboiler；3rd, skellysolve E；4th, positive heptan
Alkane rectification tower reboiler heating agent；5th, high-purity normal heptane；6th, 10X molecular sieve；7th, normal heptane treater；8th, normal heptane rectifier column reflux
Pump；9th, normal heptane return tank；10th, normal heptane recycle control valve；11st, normal heptane rectifying column air cooler；12nd, normal heptane rectifying column enters
Material preheater；13rd, normal heptane rectifying column；14th, normal heptane rectifying column inlet valve；15th, normal heptane rectifying column feed heater；16、
Isoheptane；17th, isoheptane return tank；18th, isoheptane rectifying column air cooler；19th, isoheptane recycle control valve；20th, isoheptane essence
Evaporate tower feed preheater；21st, isoheptane rectifying column inlet valve；22nd, isoheptane rectifying column feed heater；23rd, raw material heptane；
24th, isoheptane rectifier column reflux pump；25th, isoheptane rectifying column；26th, isoheptane rectifying column column bottoms pump；27th, isoheptane rectifying tower
Bottom reboiler；28th, isoheptane rectifying column reboiler heating agent.
【Specific embodiment】
This utility model can be explained in more detail by the following examples, open the purpose of this utility model is intended to protect
All changes and improvements in the range of shield this utility model, this utility model is not limited to the following examples；
The process chart of Fig. 1 10,000 tons of high-purity normal heptane precision segregation apparatuss of the present utility model；
In conjunction with accompanying drawing high-purity normal heptane precision segregation apparatuss described in the utility model, including isoheptane distillation system with just
Heptane rectifying and purifying system it is characterised in that：Isoheptane distillation system pass through isoheptane rectifying column column bottoms pump 26 outlet conduit with
Normal heptane rectifying column feed preheater 12 tube-side inlet of normal heptane rectifying and purifying system connects；Isoheptane distillation system includes different
Heptane 16, isoheptane return tank " diameter phi 1400mm, long 3600mm, volume 4.58M3 " 17, isoheptane rectifying column air cooler 18,
Isoheptane recycle control valve 19, isoheptane rectifying column feed preheater 20, isoheptane rectifying column inlet valve 21, isoheptane rectifying column
Feed heater 22, isoheptane rectifier column reflux pump 24, isoheptane rectifying column " diameter phi 1200mm, high 59600mm ", tongue shape is floated
Valve tower tray number be " 130 isoheptane rectifying column 25 ", isoheptane rectifying column column bottoms pump 26, isoheptane rectifying column bottom reboiler 27,
Isoheptane rectifying column reboiler heating agent 28；Normal heptane rectifying and purifying system includes：Normal heptane rectifying column column bottoms pump 1, normal heptane essence
Evaporate tower bottom reboiler 2, skellysolve E 3, normal heptane rectifying column reboiler heating agent 4, high-purity normal heptane 5,10X molecular sieve 6, positive heptan
Alkane treater 7, normal heptane rectifier column reflux pump 8, normal heptane return tank " diameter phi 1400mm, long 3600mm, volume 4.58M3 "
9th, normal heptane recycle control valve 10, normal heptane rectifying column air cooler 11, normal heptane rectifying column feed preheater 12, normal heptane rectification
Tower 13, normal heptane rectifying column inlet valve 14, normal heptane rectifying column feed heater 15.
The raw material heptane 23 of isoheptane distillation system enters isoheptane rectifying column feed preheater 20 tube side by pipeline and enters
Mouthful, the outlet of isoheptane rectifying column feed preheater 20 tube side is by pipeline and isoheptane rectifying column feed heater 22 tube-side inlet
Connect, the outlet of isoheptane rectifying column feed heater 22 tube side is connected with isoheptane rectifying column material valve 21 by pipeline, raw material heptan
Alkane 23 enters isoheptane rectifying column 25 through isoheptane rectifying column material valve 21；Isoheptane rectifying column 25 tower top material is entered by pipeline
Enter isoheptane rectifying column feed preheater 20 shell side inlet to raw material heptane 23 heat exchange, isoheptane rectifying column feed preheater 20 shell
Journey is exported to be connected with isoheptane rectifying column air cooler 18 entrance and is cooled, and isoheptane rectifying column air cooler 18 outlet is returned with isoheptane
Stream tank 17 connects；Isoheptane 16 part in isoheptane return tank 17 is returned by isoheptane by isoheptane rectifier column reflux pump 24
Flow control valve 19 enters the backflow of isoheptane rectifying column 25 jacking row, and another part is exactly product isoheptane 16；Isoheptane rectifying column
25 materials at bottom of towers enter isoheptane rectifying column feed heater 22 shell side inlet to raw material heptane 23 heat exchange, isoheptane by pipeline
Rectifying column feed heater 22 shell-side outlet connects isoheptane rectifying column column bottoms pump 26 entrance, isoheptane rectifying tower by pipeline
Bottom pump 26 outlet is connected with normal heptane rectifying and purifying system；Isoheptane rectifying column reboiler heating agent 28 passes through isoheptane rectifying tower
Bottom reboiler 27 heats to isoheptane rectifying column 25.
Normal heptane rectifying column feed preheater 12 tube-side inlet of normal heptane rectifying and purifying system connects isoheptane rectifying column
Column bottoms pump 26 exports, and the outlet of normal heptane rectifying column feed preheater 12 tube side is by pipeline and normal heptane rectifying column feed heater
15 tube-side inlet connect, and the outlet of normal heptane rectifying column feed heater 15 tube side is by pipeline with normal heptane rectifying column material valve 12 even
Connect, isoheptane rectifying column materials at bottom of tower enters normal heptane rectifying column " diameter phi 1200mm, height through normal heptane rectifying column material valve 14
59600mm ", tongue shape float valve tray number is 128 " normal heptane rectifying columns 13 "；Normal heptane rectifying column 13 tower top material is entered by pipeline
Enter normal heptane rectifying column feed preheater 12 shell side inlet to isoheptane rectifying column materials at bottom of tower heat exchange, normal heptane rectifying column feeds
Preheater 12 shell-side outlet is connected with normal heptane rectifying column air cooler 11 entrance, and material is cooled, normal heptane rectifying column air cooler
11 outlets are connected with normal heptane return tank 9；A normal heptane part in normal heptane return tank 9 is by normal heptane rectifier column reflux pump 8
The backflow of normal heptane rectifying column 13 jacking row is entered by normal heptane recycle control valve 10, another part enters normal heptane treater 7
" diameter phi 1000mm, high 25000mm ", obtains the high-purity normal heptane of product 5 through 10X molecular sieve 6 adsorption refining；Normal heptane rectification
Tower 13 bottom of towe skellysolve E 3 enters normal heptane rectifying column feed heater 15 shell side inlet to material-heat-exchanging by pipeline, positive heptan
Alkane rectification tower feed heater 15 shell-side outlet connects normal heptane rectifying column column bottoms pump 1 entrance, normal heptane rectifying column by pipeline
Column bottoms pump 1 outlet is by pipeline by skellysolve E 3；Normal heptane rectifying column reboiler heating agent 4 passes through normal heptane rectifying tower bottom weight
Boiling device 2 heats to normal heptane rectifying column 13.
The non-detailed portion of this utility model is prior art.
Claims (6)
1. a kind of high-purity normal heptane precision segregation apparatuss, including including isoheptane distillation system and normal heptane rectifying and purifying system, its
Feature is：Isoheptane distillation system passes through isoheptane rectifying column column bottoms pump（26）Outlet conduit and normal heptane rectifying and purifying system
Normal heptane rectifying column feed preheater（12）Tube-side inlet connects；Isoheptane distillation system includes isoheptane（16）, isoheptane returns
Stream tank（17）, isoheptane rectifying column air cooler（18）, isoheptane recycle control valve（19）, isoheptane rectifying column feed preheater
（20）, isoheptane rectifying column inlet valve（21）, isoheptane rectifying column feed heater（22）, isoheptane rectifier column reflux pump
（24）, isoheptane rectifying column（25）, isoheptane rectifying column column bottoms pump（26）, isoheptane rectifying column bottom reboiler（27）, different heptan
Alkane rectification tower reboiler heating agent（28）；Normal heptane rectifying and purifying system includes：Normal heptane rectifying column column bottoms pump（1）, normal heptane essence
Evaporate tower bottom reboiler（2）, skellysolve E（3）, normal heptane rectifying column reboiler heating agent（4）, high-purity normal heptane（5）, 10X molecule
Sieve（6）, normal heptane treater（7）, normal heptane rectifier column reflux pump（8）, normal heptane return tank（9）, normal heptane recycle control valve
（10）, normal heptane rectifying column air cooler（11）, normal heptane rectifying column feed preheater（12）, normal heptane rectifying column（13）, positive heptan
Alkane rectification tower inlet valve（14）, normal heptane rectifying column feed heater（15）.
2. high-purity normal heptane precision segregation apparatuss according to claim 1, is characterized in that：The raw material of isoheptane distillation system
Heptane（23）Isoheptane rectifying column feed preheater is entered by pipeline（20）Tube-side inlet, isoheptane rectifying column feed preheater
（20）Tube side outlet is by pipeline and isoheptane rectifying column feed heater（22）Tube-side inlet connects, and isoheptane rectifying column feeds
Heater（22）Tube side outlet is by pipeline and isoheptane rectifying column material valve（21）Connect, raw material heptane（23）Through isoheptane essence
Evaporate tower material valve（21）Enter isoheptane rectifying column（25）；Isoheptane rectifying column（25）Tower top material enters isoheptane essence by pipeline
Evaporate tower feed preheater（20）Shell side inlet is to raw material heptane（23）Heat exchange, isoheptane rectifying column feed preheater（20）Shell side goes out
Mouth and isoheptane rectifying column air cooler（18）Entrance connects cooled, isoheptane rectifying column air cooler（18）Outlet is returned with isoheptane
Stream tank（17）Connect；Isoheptane return tank（17）Interior isoheptane（16）A part is by isoheptane rectifier column reflux pump（24）Pass through
Isoheptane recycle control valve（19）Enter isoheptane rectifying column（25）Jacking row flows back, and another part is exactly product isoheptane
（16）；Isoheptane rectifying column（25）Materials at bottom of tower enters isoheptane rectifying column feed heater by pipeline（22）Shell side inlet pair
Raw material heptane（23）Heat exchange, isoheptane rectifying column feed heater（22）Shell-side outlet connects isoheptane rectifying tower by pipeline
Bottom pump（26）Entrance, isoheptane rectifying column column bottoms pump（26）Outlet is connected with normal heptane rectifying and purifying system；Isoheptane rectifying column
Reboiler heating agent（28）By isoheptane rectifying column bottom reboiler（27）To isoheptane rectifying column（25）Heated.
3. high-purity normal heptane precision segregation apparatuss according to claim 1, is characterized in that：Normal heptane rectifying column feeding preheating
Device（12）Tube-side inlet connects isoheptane rectifying column column bottoms pump（26）Outlet, normal heptane rectifying column feed preheater（12）Tube side goes out
Mouth is by pipeline and normal heptane rectifying column feed heater（15）Tube-side inlet connects, normal heptane rectifying column feed heater（15）
Tube side outlet is by pipeline and normal heptane rectifying column material valve（14）Connect, isoheptane rectifying column materials at bottom of tower is through normal heptane rectification
Tower material valve（14）Enter normal heptane rectifying column（13）；Normal heptane rectifying column（13）Tower top material enters normal heptane rectification by pipeline
Tower feed preheater（12）Shell side inlet is to isoheptane rectifying column materials at bottom of tower heat exchange, normal heptane rectifying column feed preheater（12）
Shell-side outlet and normal heptane rectifying column air cooler（11）Entrance connects, and material is cooled, normal heptane rectifying column air cooler（11）Go out
Mouth and normal heptane return tank（9）Connect；Normal heptane return tank（9）An interior normal heptane part is by normal heptane rectifier column reflux pump
（8）By normal heptane recycle control valve（10）Enter normal heptane rectifying column（13）Jacking row flows back, and another part enters normal heptane
Treater（7）, through 10X molecular sieve（6）Adsorption refining obtains the high-purity normal heptane of product（5）；Normal heptane rectifying column（13）Bottom of towe
Skellysolve E（3）Normal heptane rectifying column feed heater is entered by pipeline（15）Shell side inlet is to material-heat-exchanging, normal heptane essence
Evaporate tower feed heater（15）Shell-side outlet connects normal heptane rectifying column column bottoms pump by pipeline（1）Entrance, normal heptane rectifying column
Column bottoms pump（1）Outlet is by pipeline by skellysolve E（3）；Normal heptane rectifying column reboiler heating agent（4）By normal heptane rectifying column
Bottom reboiler（2）To normal heptane rectifying column（13）Heated.
4. high-purity normal heptane precision segregation apparatuss according to claim 1, is characterized in that：Isoheptane rectification is tongue shape float valve
Tower tray, or regular rustless steel ripple packing, effective tower tray number is 110～150.
5. high-purity normal heptane precision segregation apparatuss according to claim 1, is characterized in that：Normal heptane rectifying column is that tongue shape is floated
Valve tower tray, or regular rustless steel ripple packing, effective tower tray number is 110～150.
6. high-purity normal heptane precision segregation apparatuss according to claim 1, is characterized in that：Normal heptane treater physical dimension
For：Diameter phi 500mm～φ 1500mm, high 5000mm～20000mm.
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| CN201620642055.7U CN205965074U (en) | 2016-06-27 | 2016-06-27 | Accurate separator of high -purity n -heptane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920866A (en) * | 2016-06-27 | 2016-09-07 | 河南中托力合化学有限公司 | Precise separation device for high-purity n-heptane |
| CN106693431A (en) * | 2017-03-17 | 2017-05-24 | 河南中托力合化学有限公司 | Novel heptane precise fractionation device |
| CN106799059A (en) * | 2017-03-17 | 2017-06-06 | 河南中托力合化学有限公司 | Energy-saving hexane precise distillation apparatus |
-
2016
- 2016-06-27 CN CN201620642055.7U patent/CN205965074U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920866A (en) * | 2016-06-27 | 2016-09-07 | 河南中托力合化学有限公司 | Precise separation device for high-purity n-heptane |
| CN105920866B (en) * | 2016-06-27 | 2018-01-05 | 河南中托力合化学有限公司 | A kind of high-purity normal heptane precision separator |
| CN106693431A (en) * | 2017-03-17 | 2017-05-24 | 河南中托力合化学有限公司 | Novel heptane precise fractionation device |
| CN106799059A (en) * | 2017-03-17 | 2017-06-06 | 河南中托力合化学有限公司 | Energy-saving hexane precise distillation apparatus |
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