CN110129082A - It is a kind of to prepare pitch technique using putty slag - Google Patents
It is a kind of to prepare pitch technique using putty slag Download PDFInfo
- Publication number
- CN110129082A CN110129082A CN201910301974.6A CN201910301974A CN110129082A CN 110129082 A CN110129082 A CN 110129082A CN 201910301974 A CN201910301974 A CN 201910301974A CN 110129082 A CN110129082 A CN 110129082A
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- CN
- China
- Prior art keywords
- coal
- oil
- extractant
- solvent
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- C10C3/08—Working-up pitch, asphalt, bitumen by selective extraction
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- Chemical & Material Sciences (AREA)
- 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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention proposes that a kind of utilization putty slag prepares pitch technique, which takes physical separation production technology to produce standard asphalt how with a high standard using coal tar wash oil as extractant, is used widely for putty slag and provides technology guarantee.Process route is as follows: can be dissolved in solvent and property of the solid constituents such as ashes insoluble in solvent using putty slag studies on asphaltene and light oil constituents, pitch in putty slag is mixed at a certain temperature with solvent and is mixed, then it is separated using solid-liquid separating equipment, obtain the separating liquid of different contents of ashes, separating liquid is again after vacuum distillation recovered solvent, different grades of coal-based pitch product is finally obtained, and is shaped to asphaltic products.Extract remainder is used as fuel after dry removing solvent.
Description
Technical field
Pitch technique is prepared using putty slag the present invention relates to a kind of, belongs to petrochemical industry and coal chemical technology.
Background technique
Crude oil (heavy oil) refining technology integrated with coal is to make full use of the distinctive rich oil coal resources in China, reduction pair
Imported oil interdependency promotes China's oil refining industry industrial upgrading, upgrading synergy and reduces pollution, realizes high quality development.?
Putty slag can be generated in oily coal integration refining process, yield is about the 15% of material quantity, needs to be used, further mention
High economic benefit.
Putty slag is product of the coal after slurry bed system hydrogenation reaction, is made of various ingredients: being existed including diesel oil, wax oil
Interior light oil constituents；The organic components such as colloid, asphaltene and the preasphaltene that oil and coal dust molecule preliminary exposition are formed；Unreacted
The char particle that coal dust and oily coal condensation reaction generate；The catalyst of minerals and addition in coal.The calorific value of putty slag exists
7000kcal/kg or more is good fuel, but sulfur content is higher, and pollutant discharge amount is larger when burning；As gasified raw material
When the vaporization type of furnace is required it is high；It is used directly as pitch, and is not able to satisfy national standard.The value of organic component in putty slag
It is high, if it is possible to utilize with obtaining high value, can be improved the economic benefit of entire project.
Summary of the invention:
The present inventor proposes a kind of utilization on the basis of furtheing investigate to putty slag property and the relevant technologies accumulate
Putty slag prepares pitch technique, which takes physical separation production technology to produce using coal tar wash oil as extractant
Standard asphalt mostly with a high standard is used widely for putty slag and provides technology guarantee.Process route is as follows: using in putty slag
Asphalitine and light oil constituents can be dissolved in solvent and property of the solid constituents such as ashes insoluble in solvent, by the pitch in putty slag
It mixes and mixes at a certain temperature with solvent, then separated using solid-liquid separating equipment, obtain the separating liquid of different contents of ashes,
Separating liquid after vacuum distillation recovered solvent, finally obtains different grades of coal-based pitch product, and be shaped to asphaltic products again.
Extract remainder is used as fuel after dry removing solvent.
It is characterized by:
Solvent can be dissolved in using pitch component in putty slag, and property of the solid constituents such as ashes insoluble in solvent, it uses
Extractant comes out bitumen extraction, and solid matter is separated, then extract liquor is separated, and recycles extractant, obtains different
The pitch of grade.
Putty slag is the product of hydrogenation technique, specific composition are as follows: (1) light oil constituents including diesel oil, wax oil；(2)
The organic components such as colloid, asphaltene and the preasphaltene that oil and coal dust molecule preliminary exposition are formed；(3) unreacted coal dust and oil
The char particle that coal condensation reaction generates；(4) minerals in coal and addition catalyst.
Extractant is coal tar wash oil.
Hydrogenation technique refers to coal state bed hydroprocessing and heavy-oil hydrogenation.The coal state bed hydroprocessing and heavy oil hydrogenation process
Feedstock oil includes one of reduced crude, decompression residuum, catalytic slurry, de-oiled asphalt, coal tar or multiple combinations.
Extraction process process: (1) mixing extractant with putty slag, and mixing temperature is 100-150 DEG C, and pressure≤
0.5MPa, hybrid mode are centrifugal mixer, and extractant/putty slag mixed proportion is 1-5, form centrifugate after mixing and raffinate is solid
Body.
(2) by a part of direct vacuum flashing of above-mentioned centrifugate, flash temperature is 180-250 DEG C, flashing pressure 5-
20KPa all steams extractant, and bottoms is cooled and shaped, and pitch is made；Another part standing sedimentation 1-5 days, sedimentation
Temperature is 150-220 DEG C, is 2-5 parts according to content of ashes different demarcation after sedimentation and carries out vacuum flashing respectively, flash temperature is
180-250 DEG C, flashing pressure 5-20KPa, extractant is all steamed, bottoms is cooled and shaped, and it is different that 2-5 kind is made
The pitch of grade.
(3) raffinate solid removes extractant through drying process, and 280-350 DEG C of drying temperature.
Technical effect:
1, putty slag each component is separated using this technology, is classified according to the property of different component and is subject to benefit
With the utility value of raising putty slag；
2, putty slag is reduced directly to burn bring atmosphere pollution；
3, Business Economic Benefit is improved.
1 explanation of attached drawing
Fig. 1 be it is a kind of prepare pitch process flow chart using putty slag, the extraction, separation and production of putty slag is described in detail
The molding process of product.
Specific embodiment
For the specific features that the present invention is further explained, will be illustrated in conjunction with attached drawing 1 and specific embodiment.
Using the putty slag of oily coal integration refining as extraction feed, property is shown in Table 1, and using washing oil as extractant, property is shown in Table
2.Prepare the pitch of three kinds of trades mark, preparation process are as follows:
1, by putty slag and washing oil sleeping spiral shell from scheming in mix, mixing temperature is 140 DEG C, and pressure is normal pressure, extraction
Agent and putty slag mixed proportion are 2: 1, and centrifugate and raffinate solid are formed after mixing.
(2) 25% progress vacuum flashing in above-mentioned centrifugate is taken, flash temperature is 220 DEG C, flashing pressure 10KPa, will
Washing oil all steams, and bottoms is cooled and shaped, and C grades of pitches are made；Another part standing sedimentation 120 hours, settling temperature
It is 200 DEG C, is 3 parts according to content of ashes different demarcation after sedimentation and carries out vacuum flashing respectively, flash temperature is 220 DEG C, flash distillation
Pressure is 10KPa, and extractant is all steamed, and bottoms is cooled and shaped, and the different grades of pitch of A, B, C kind is made.
(3) raffinate solid removes extractant through drying process, and 310 DEG C of drying temperature, the solids property after drying is shown in Table
4。
1 putty slag property list of table
2 extractant property list of table
3 asphaltic nature table of table
4 extract remainder property list of table
Conclusion:
From above-described embodiment as can be seen that production process clean and effective of the present invention, 3 kinds of trade mark asphaltic natures of production are excellent
Environmental protection improves the utility value of putty slag, and oily coal integration is promoted to refine project development.
The foregoing is merely preferably one of specific embodiments of the invention, but protection scope of the present invention is not limited to
This, any technical staff for being familiar with refining art or coal oil within the technical scope of the present disclosure, it is contemplated that variation or
Replacement, is all included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection of claims
Subject to range.
Claims (5)
1. solvent can be dissolved in using pitch component in putty slag, and property of the solid constituents such as ashes insoluble in solvent, use extraction
Agent is taken to come out bitumen extraction, solid matter is separated, then extract liquor is separated, and recycles extractant, is obtained different etc.
The pitch of grade.
2. putty slag described in claim 1 is the product of hydrogenation technique, specific composition are as follows: (1) light including diesel oil, wax oil
Oil ingredient；(2) organic components such as colloid, asphaltene and preasphaltene that oil and coal dust molecule preliminary exposition are formed；(3) unreacted
The char particle that coal dust and oily coal condensation reaction generate；(4) minerals in coal and the catalyst for adding people.
3. extractant described in claim 1 is coal tar wash oil.
4. hydrogenation technique as claimed in claim 2 refers to coal state bed hydroprocessing and heavy-oil hydrogenation.The coal state bed hydroprocessing and
The feedstock oil of heavy oil hydrogenation process include one of reduced crude, decompression residuum, catalytic slurry, de-oiled asphalt, coal tar or
Multiple combinations.
5. extraction process process described in claim 1: (1) mixing extractant with putty slag, mixing temperature 100-150
DEG C, pressure≤0.5MPa, hybrid mode is centrifugal mixer, and extractant/putty slag mixed proportion is 1-5, and centrifugation is formed after mixing
Liquid and raffinate solid.
(2) by a part of direct vacuum flashing of above-mentioned centrifugate, flash temperature is 180-250 DEG C, flashing pressure 5-20KPa,
Extractant is all steamed, bottoms is cooled and shaped, and pitch is made；Another part standing sedimentation 1-5 days, settling temperature are
150-220 DEG C, it is 2-5 parts according to content of ashes different demarcation after sedimentation and carries out vacuum flashing, flash temperature 180-250 respectively
DEG C, flashing pressure 5-20KPa all steams extractant, and bottoms is cooled and shaped, and it is different grades of that 2-5 kind is made
Pitch.
(3) raffinate solid removes extractant through drying process, and 280-350 DEG C of drying temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301974.6A CN110129082A (en) | 2019-04-12 | 2019-04-12 | It is a kind of to prepare pitch technique using putty slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301974.6A CN110129082A (en) | 2019-04-12 | 2019-04-12 | It is a kind of to prepare pitch technique using putty slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110129082A true CN110129082A (en) | 2019-08-16 |
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ID=67570060
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910301974.6A Pending CN110129082A (en) | 2019-04-12 | 2019-04-12 | It is a kind of to prepare pitch technique using putty slag |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580489A (en) * | 1978-12-11 | 1980-06-17 | Saarbergwerke Ag | Isolating solid material from nondistillable liquid hydrocarbon fraction |
| CN103242881A (en) * | 2013-05-30 | 2013-08-14 | 神华集团有限责任公司 | Method for separating bituminous substances from coal direct liquefaction residues |
| CN103275744A (en) * | 2013-05-30 | 2013-09-04 | 神华集团有限责任公司 | Asphalt substance separated from direct coal liquefaction residues and method and application thereof |
| CN104845652A (en) * | 2015-06-10 | 2015-08-19 | 神华集团有限责任公司 | Treatment method for direct coal liquefaction residues |
| CN106995719A (en) * | 2016-01-26 | 2017-08-01 | 中科合成油技术有限公司 | The method and thus obtained organic matter extract of organic matter in extracting coal directly-liquefied residue |
| CN109082292A (en) * | 2018-09-04 | 2018-12-25 | 福建海峡能源集团股份有限公司 | A kind of technique for extracting pitch from putty slag |
-
2019
- 2019-04-12 CN CN201910301974.6A patent/CN110129082A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580489A (en) * | 1978-12-11 | 1980-06-17 | Saarbergwerke Ag | Isolating solid material from nondistillable liquid hydrocarbon fraction |
| CN103242881A (en) * | 2013-05-30 | 2013-08-14 | 神华集团有限责任公司 | Method for separating bituminous substances from coal direct liquefaction residues |
| CN103275744A (en) * | 2013-05-30 | 2013-09-04 | 神华集团有限责任公司 | Asphalt substance separated from direct coal liquefaction residues and method and application thereof |
| CN104845652A (en) * | 2015-06-10 | 2015-08-19 | 神华集团有限责任公司 | Treatment method for direct coal liquefaction residues |
| CN106995719A (en) * | 2016-01-26 | 2017-08-01 | 中科合成油技术有限公司 | The method and thus obtained organic matter extract of organic matter in extracting coal directly-liquefied residue |
| CN109082292A (en) * | 2018-09-04 | 2018-12-25 | 福建海峡能源集团股份有限公司 | A kind of technique for extracting pitch from putty slag |
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