CN104694146B - A kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating - Google Patents
A kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating Download PDFInfo
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- CN104694146B CN104694146B CN201510163646.6A CN201510163646A CN104694146B CN 104694146 B CN104694146 B CN 104694146B CN 201510163646 A CN201510163646 A CN 201510163646A CN 104694146 B CN104694146 B CN 104694146B
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- tar
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- colophonium
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/002—Working-up pitch, asphalt, bitumen by thermal means
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The present invention relates to pressure is held in a kind of flash distillation combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating, the production technology is once heating production technology, only heated using a tube furnace in technical process, Colophonium flash separation and laser heating substantially, are held warm polymerization technique and are combined by energy-saving effect.Flash separation is carried out to Colophonium first, oxidation thermal polymerization is carried out again through being accurately controlled electrical heating and hold temperature, obtain target product and be more suitable for requirement of the carbon industry to Colophonium, particularly possess good caking property in charcoal element compound kneading, after roasting, possess higher coking value.
Description
Technical field
The present invention relates to modified coal tar pitch production technical field, and in particular to a kind of flash distillation is held pressure and combined and is detained tower electricity with heating
The technique for holding warm modified coal tar pitch.
Background technology
Hard grades of bitumen and modified coal tar pitch are with mid temperature pitch as raw material, through obtained in respective handling.With Colophonium as raw material
The production method of production modified coal tar pitch mainly has oxidation thermal polymerization method, normal pressure thermal polymerization method, pressurization thermal polymerization method, vacuum flashing method etc..Existing
Have in technique, raw tar enters boiled tar through ultracentrifuge centrifugation after removing coal ash dust, free carbon and water
Groove, the boiled tar for obtaining carry out media for heat exchange by raw tar pumped and heat exchanger and enter dehydration to after 180～190 DEG C
Tower, obtains being dehydrated and enters tube furnace convection section to less than 0.2% anhydrous tar and be heated to 280 DEG C or so entrance fraction towers, by
In asphalt component, excessively cross-linked polymeric and the uneven part that is heated can be mild coking at high temperature, the Colophonium of fraction bottom of towe extraction
The mid temperature pitch product of general quality is obtained after anhydrous tar/asphalt exchanger heat exchange, and Colophonium is in transmission and the process of standing
Heated using steam, the mode that temperature is held in this heating is difficult to meet the requirement that Colophonium keeps 300 DEG C of temperatures above.
Content of the invention
The purpose of the present invention is the deficiency for solving above-mentioned technical problem, there is provided a kind of flash distillation is held pressure and combined and is detained tower electricity companion
The technique of warm modified coal tar pitch is held in heating, and the production technology is only managed using one in technical process for once heating production technology
Formula stove is heated, and Colophonium flash separation and laser heating substantially, are held warm polymerization technique and combined by energy-saving effect.First to drip
Green grass or young crops carries out flash separation, then carries out oxidation thermal polymerization through being accurately controlled electrical heating and holding temperature, obtains target product and is more suitable for charcoal
Requirement of the plain industry to Colophonium, particularly possesses good caking property in charcoal element compound kneading, possesses higher after roasting
Coking value.
For solving the deficiency of above-mentioned technical problem, the technical scheme for being adopted is the present invention：A kind of flash distillation holds pressure with reference to stagnant
Stay tower electricity that the technique of warm modified coal tar pitch is held with heating, comprise the following steps：
1）, raw tar is mixed with solvent after stirring and, and after tar through the de- pulp pump of dehydration send into super from
Scheming carries out weight Component seperation, and the weight component that isolates respectively enters light component storage tank and heavy constituent storage tank；
2）, light component or heavy constituent entered boiled tar groove by pumped, then taken out from boiled tar groove by raw material pump
Go out 180～190 DEG C are heated to after the heat exchange of tar preheater, two contaminated product condensers, washing oil cooler and washing oil condenser
And enter in the middle part of dehydrating tower；Wherein, tar preheater is used only when going into operation；
3a）, dehydrating tower tower reactor anhydrous tar is pumped to tar/carbolineum heat exchanger, Colophonium/anhydrous tar and followed by tar circulation
After 220～230 DEG C are heated to after the heat exchange of ring heat exchanger, dehydrating tower tower reactor is returned to, bottom temperature is controlled at 200～210 DEG C, is taken off
The tar of water to less than 0.2% extracts heat exchanger A out through Colophonium/anhydrous tar and Colophonium/anhydrous tar is extracted out after heat exchanger B heating
Exchange heat to after 250 DEG C with the Colophonium for being recycled into fraction tower bottom and enter in the middle part of fraction tower；
3b）, the Colophonium isolated of fraction tower bottom, through Colophonium circulation be pumped to Colophonium/anhydrous tar extract out heat exchanger B and
Diamond heating is delivered to after Colophonium/anhydrous tar circulation heat exchanger heat exchange, the most of Colophonium after 380～390 DEG C is heated to and is returned
It is circulated to fraction bottom of towe, sub-fraction enters flash oil tower as extraction, flash oil tower bottom discharging opening is connected to Colophonium
It is detained tower, Colophonium carries out thermal polycondensation modification in delay tower, and the top of flash oil tower is connected with the top of Colophonium delay tower,
Colophonium is detained tower carries out heat supply by electric heating with device, and electric heating includes being wrapped in the electric-heating belt that Colophonium is detained outside tower with device
And temperature control system, the Colophonium after modification is extracted out from tower bottom is detained by modified coal tar pitch pump, in Colophonium/anhydrous tar extraction
Colophonium height is entered after exchanging heat in heat exchanger A puts groove take-away or molding；Described temperature control system is included along electric tracing belt length
The power supply list that the temperature controller that multiple temperature probes that degree direction is laid are connected with multiple temperature probes is connected with electric-heating belt
Unit and the temperature detect switch (TDS) being serially connected between power supply unit and electric-heating belt in current supply circuit, temperature detect switch (TDS) are controlled by temperature controller
And which is connected with temperature controller.
The step 1）In solvent be light oil, washing oil or light oil and washing oil arbitrarily than mixed solvent, and solvent plus
Enter the 15%-20% that amount is raw tar weight.
The step 1）Centrifugal force during middle centrifugation is 3000G, centrifugation 1-5min.
The step 1）After middle raw tar centrifugation, the quinoline insolubles content of heavy constituent tar is more than 1%, light component
The quinoline insolubles content of tar is light component less than 1%.
The step 2）When the middle raw tar for entering boiled tar groove is light component tar, step 3b）The Colophonium for obtaining
Product is high-quality asphalt.
The step 2）When the middle raw tar for entering boiled tar groove is heavy constituent tar, step 3b）The Colophonium for obtaining
Product is common modified coal tar pitch.
Described fraction tower is vacuum distillation tower.
Beneficial effect
The Production Process for Modified Pitch of the present invention only uses a tubular type for once heating production technology, in technical process
Stove is heated, and Colophonium flash separation and laser heating substantially, are held warm polymerization technique and combined by energy-saving effect.First to Colophonium
Carry out flash separation, then oxidation thermal polymerization is carried out through being accurately controlled electrical heating and holding temperature, obtain target product and be more suitable for charcoal element
Requirement of the industry to Colophonium, particularly possesses good caking property in charcoal element compound kneading, possesses higher knot after roasting
Coke number.
Description of the drawings
Fig. 1 is the schematic flow sheet of Production Process for Modified Pitch of the present invention；
Reference：1st, raw tar storage tank, 2, dehydrating tower, 3, fraction tower, 4, tar preheater, 5, Colophonium/anhydrous Jiao
Heat exchanger A extracted out by oil, and 6, Colophonium/circulation tar heat exchanger, 7, tube furnace, 8, flash oil tower, 9, Colophonium delay tower, 10, Colophonium
Height puts groove, and 11, Colophonium/anhydrous tar extracts heat exchanger B out, and 12, light component storage tank, 13, heavy constituent storage tank, 14, two contaminated products are condensed
Device, 15, washing oil cooler, 16, washing oil condenser.
Specific embodiment
As shown in the figure：A kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating, including following step
Suddenly：
1）, raw tar is extracted out by raw tar storage tank 1 after with solvent mix and, and after tar through de-
The de- pulp pump of water sends into ultracentrifuge carries out weight Component seperation, and the weight component that isolates respectively enters 12 He of light component storage tank
Heavy constituent storage tank 13；
The step 1）In solvent be light oil, washing oil or light oil and washing oil arbitrarily than mixed solvent, and solvent plus
Enter the 15%-20% that amount is raw tar weight.
The step 1）Centrifugal force during middle centrifugation is 3000G, centrifugation 1-5min.
The step 1）After middle raw tar centrifugation, the quinoline insolubles content of heavy constituent tar is more than 1%, light component
The quinoline insolubles content of tar is light component less than 1%.
2）, light component or heavy constituent entered boiled tar groove by pumped, then taken out from boiled tar groove by raw material pump
Go out 180 are heated to after the heat exchange of tar preheater 4, two contaminated product condensers 14, washing oil cooler 15 and washing oil condenser 16
～190 DEG C and enter in the middle part of dehydrating tower 2；Wherein, tar preheater 4 is used only when going into operation；
3a）, 2 tower reactor anhydrous tar of dehydrating tower by tar circulation be pumped to tar/carbolineum heat exchanger, Colophonium/anhydrous tar
After circulation heat exchanger 6 is heated to 220～230 DEG C after exchanging heat, 2 tower reactor of dehydrating tower is returned to, bottom temperature is controlled 200～210
DEG C, be dehydrated to less than 0.2% tar heat exchanger A5 and Colophonium/anhydrous tar extraction heat exchanger is extracted out through Colophonium/anhydrous tar
Exchange heat to after 250 DEG C with the Colophonium for being recycled into fraction tower bottom after B11 heating and enter in the middle part of fraction tower 3；
3b）, the Colophonium isolated of 3 bottom of fraction tower, be pumped to Colophonium/anhydrous tar through Colophonium circulation and extract heat exchanger out
B11 and Colophonium/anhydrous tar circulation heat exchanger 6 are delivered to tube furnace 7 after exchanging heat and are heated, the major part being heated to after 380～390 DEG C
Colophonium returns to 3 bottom of fraction tower and is circulated, and sub-fraction enters flash oil tower 8 as extraction, and 8 bottom discharge mouth of flash oil tower connects
It is connected to Colophonium and is detained tower 9, Colophonium carries out thermal polycondensation modification in delay tower 9, and tower 9 is detained with Colophonium in the top of flash oil tower 8
Top be connected, Colophonium is detained tower 9 carries out heat supply by electric heating with device, and electric heating includes being wrapped in Colophonium delay tower with device
Electric-heating belt and temperature control system outside 9, the Colophonium after modification are extracted out from tower bottom is detained by modified coal tar pitch pump, in drip
Green grass or young crops/anhydrous tar is extracted entrance Colophonium height after exchanging heat in heat exchanger A out and puts groove take-away or molding；Described temperature control system bag
Temperature controller and electric tracing that the multiple temperature probes that lays along electric-heating belt length direction are connected is included with multiple temperature probes
Power supply unit and the temperature detect switch (TDS) being serially connected between power supply unit and electric-heating belt in current supply circuit that band connects, temperature detect switch (TDS) by
Temperature controller is controlled and which is connected with temperature controller.The step 2）The middle raw tar for entering boiled tar groove is that light component is burnt
When oily, step 3b）The asphaltic products for obtaining is high-quality asphalt.
The step 2）When the middle raw tar for entering boiled tar groove is heavy constituent tar, step 3b）The Colophonium for obtaining
Product is common modified coal tar pitch.
Colophonium flash separation and laser heating are held warm polymerization technique and are mutually tied by the Production Process for Modified Pitch of the present invention
Close.First carry out flash separation to Colophonium, then oxidation thermal polymerization is carried out through being accurately controlled electrical heating and holding temperature, obtain target product
It is more suitable for requirement of the carbon industry to Colophonium, particularly possesses good caking property in charcoal element compound kneading, have after roasting
Standby higher coking value.
Claims (7)
1. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating, it is characterised in that：Including following step
Suddenly： 1）, raw tar is mixed with solvent after stirring and, and after tar send into ultracentrifuge through the de- pulp pump of dehydration
Weight Component seperation is carried out, the weight component that isolates respectively enters light component storage tank and heavy constituent storage tank； 2）, by light component
Or heavy constituent enters boiled tar groove by pumped, then extracted out from boiled tar groove by raw material pump and mixed with tar preheater, two
180～190 DEG C are heated to after the heat exchange of oil condenser, washing oil cooler and washing oil condenser and are entered in the middle part of dehydrating tower；Its
In, tar preheater is used only when going into operation； 3a）, dehydrating tower tower reactor anhydrous tar circulates by tar and be pumped to successively Jiao
After 220～230 DEG C are heated to after oil/carbolineum heat exchanger and Colophonium/anhydrous tar circulation heat exchanger heat exchange, dehydrating tower tower is returned to
Kettle, bottom temperature are controlled at 200～210 DEG C, be dehydrated to less than 0.2% tar through Colophonium/anhydrous tar extract out heat exchanger A and
Colophonium/anhydrous tar is exchanged heat to after 250 DEG C with the Colophonium for being recycled into fraction tower bottom after extracting heat exchanger B heating out and enters fraction
In the middle part of tower； 3b）, the Colophonium isolated of fraction tower bottom, through Colophonium circulation be pumped to Colophonium/anhydrous tar extract out heat exchanger B and
Diamond heating is delivered to after Colophonium/anhydrous tar circulation heat exchanger heat exchange, the most of Colophonium after 380～390 DEG C is heated to and is returned
It is circulated to fraction bottom of towe, sub-fraction enters flash oil tower as extraction, flash oil tower bottom discharging opening is connected to Colophonium
It is detained tower, Colophonium carries out thermal polycondensation modification in delay tower, and the top of flash oil tower is connected with the top of Colophonium delay tower,
Colophonium is detained tower carries out heat supply by electric heating with device, and electric heating includes being wrapped in the electric-heating belt that Colophonium is detained outside tower with device
And temperature control system, the Colophonium after modification is extracted out from tower bottom is detained by modified coal tar pitch pump, in Colophonium/anhydrous tar extraction
Colophonium height is entered after exchanging heat in heat exchanger A puts groove take-away or molding；Described temperature control system is included along electric tracing belt length
The power supply list that the temperature controller that multiple temperature probes that degree direction is laid are connected with multiple temperature probes is connected with electric-heating belt
Unit and the temperature detect switch (TDS) being serially connected between power supply unit and electric-heating belt in current supply circuit, temperature detect switch (TDS) are controlled by temperature controller
And which is connected with temperature controller.
2. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：The step 1）In solvent be light oil, washing oil or light oil and washing oil arbitrarily than mixed solvent, and the addition of solvent
Measure the 15%-20% for raw tar weight.
3. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：The step 1）Centrifugal force during middle centrifugation is 3000g, centrifugation 1-5min.
4. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：The step 1）After middle raw tar centrifugation, the quinoline insolubles content of heavy constituent tar is more than 1%, light component
The quinoline insolubles content of tar is light component less than 1%.
5. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：The step 2）When the middle raw tar for entering boiled tar groove is light component tar, step 3b）The Asphalt Production for obtaining
Product are high-quality asphalt.
6. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：The step 2）When the middle raw tar for entering boiled tar groove is heavy constituent tar, step 3b）The Asphalt Production for obtaining
Product are common modified coal tar pitch.
7. a kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating as claimed in claim 1, and which is special
Levy and be：Described fraction tower is vacuum distillation tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163646.6A CN104694146B (en) | 2015-04-09 | 2015-04-09 | A kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163646.6A CN104694146B (en) | 2015-04-09 | 2015-04-09 | A kind of flash distillation is held pressure and combines the technique for being detained that tower electricity holds warm modified coal tar pitch with heating |
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| CN104694146B true CN104694146B (en) | 2017-03-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101126027A (en) * | 2006-08-17 | 2008-02-20 | 戴惠筠 | Method for preparing coal series needle coke |
| CN201386075Y (en) * | 2009-03-30 | 2010-01-20 | 旭阳控股有限公司 | Multi-variety asphalt production device |
| CN103059892B (en) * | 2013-01-25 | 2014-01-22 | 兖矿科蓝煤焦化有限公司 | Tar distillation process for directly producing modified pitch |
| CN103113908B (en) * | 2013-01-30 | 2014-07-02 | 陕西煤业化工技术研究院有限责任公司 | Coal-based needle coke preparation process |
| CN103756704B (en) * | 2014-01-22 | 2015-03-11 | 鞍山兴德工程技术有限公司 | System for producing modified coal tar pitch and preparation method thereof |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Mao Inventor after: Zhou Wensheng Inventor after: Ai Humin Inventor after: Zhou Yunhui Inventor after: Zhao Bin Inventor after: Guan Jiuxia Inventor before: Ai Humin Inventor before: Zhou Yunhui Inventor before: Zhao Bin Inventor before: Guan Jiuxia |
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Effective date of registration: 20170208 Address after: 452670 Ziyun City, Xuchang province Xiangcheng County town of Liu Village Applicant after: Henan Kai Tan novel material company limited Applicant after: China Pingmei Shenma Energy Chemical Group Co., Ltd. Address before: 452670 Ziyun City, Xuchang province Xiangcheng County town of Liu Village Applicant before: Henan Kai Tan novel material company limited |
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Address after: 461700 intersection of Kaiyuan Road and Qizi Road, Ziyun Town, Xiangcheng County, Xuchang City, Henan Province Patentee after: Henan Shoucheng technology new material Co.,Ltd. Patentee after: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. Address before: 452670 Po Liu Cun, Ziyun Town, Xiangcheng County, Xuchang City, Henan Province Patentee before: HENAN KAITAN NEW MATERIAL Co.,Ltd. Patentee before: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. |
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