CA2556482A1 - Process for producing pitches from coal, tars and distillates thereof by oxidative thermal treatment - Google Patents
Process for producing pitches from coal, tars and distillates thereof by oxidative thermal treatment Download PDFInfo
- Publication number
- CA2556482A1 CA2556482A1 CA002556482A CA2556482A CA2556482A1 CA 2556482 A1 CA2556482 A1 CA 2556482A1 CA 002556482 A CA002556482 A CA 002556482A CA 2556482 A CA2556482 A CA 2556482A CA 2556482 A1 CA2556482 A1 CA 2556482A1
- Authority
- CA
- Canada
- Prior art keywords
- thermal treatment
- oxygen
- air
- carried out
- bar
- 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.)
- Granted
Links
- 238000007669 thermal treatment Methods 0.000 title claims abstract 7
- 230000001590 oxidative effect Effects 0.000 title claims abstract 4
- 239000003245 coal Substances 0.000 title claims abstract 3
- 238000000034 method Methods 0.000 title claims 10
- 239000011295 pitch Substances 0.000 title claims 6
- 239000011269 tar Substances 0.000 title claims 2
- 239000001301 oxygen Substances 0.000 claims abstract 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract 3
- 238000004519 manufacturing process Methods 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 3
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims 8
- 239000006227 byproduct Substances 0.000 claims 2
- 238000004508 fractional distillation Methods 0.000 claims 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 229910021383 artificial graphite Inorganic materials 0.000 claims 1
- 239000011305 binder pitch Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000007833 carbon precursor Substances 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000004821 distillation Methods 0.000 abstract 2
- 239000003570 air Substances 0.000 abstract 1
- 239000011280 coal tar Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
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
- C10C1/00—Working-up tar
- C10C1/04—Working-up tar by distillation
- C10C1/16—Winning of pitch
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to the production of brea from distillates arising from high temperature coal tar having a distillation range of more than 260 ~C, by means of sequential and combined application of three stages in mild pressure and temperature conditions (<400~ C, <10 bar g): oxidative thermal treatment used as a reagent for air or oxygen, mixtures thereof, or air which is low in oxygen; thermal treatment in an inert atmosphere and fractionated distillation. It is possible to obtain brea exhibiting environmental advantages and advantages in term of occupational health, which can be used as coal precursors.
Claims (8)
1.- A process for producing pitches from coal tars and distillates thereof, characterized in that the process is carried out in three steps under mild conditions of pressure and temperature, said steps being: oxidative thermal treatment using as reagent air, oxygen, low-oxygen air, or mixtures thereof; thermal treatment under inert atmosphere, and fractional distillation.
2.- The process of claim 1, characterized in that the oxidative thermal treatment step is carried out at a temperature of less than 400° C, a pressure of less than 10 bar g and a residence time in the range of 2-10 seconds, and preferably 350-400° C, 5-10 bar g and 6-10 seconds, using as reagent air, oxygen, low-oxygen air, or mixtures thereof.
3.- The process of claims 1 and 2, characterized in that the thermal treatment step under inert atmosphere is carried out at 340-400° C, less than 10 bar g and a residence time in the range of 3-10 hours, and preferably, 370-400° C, atmospheric pressure and 4-6 hours, in order to stabilize the reaction product.
4.- The process of claims 1, 2 and 3, characterized in that the fractional distillation step is carried out preferably under vacuum or by stripping with steam or inert gas, in order to adjust the softening point of the pitch.
5.- The process of claims 1, 2, 3 and 4, characterized in that as a byproduct there is obtained anthracene oil which exhibits an increased concentration of anthracene/phenanthrene.
6.- Use of the pitches obtained by the process of claims 1 to 4 in the particular field of carbon precursors.
7.- Use of the pitches obtained by the process of claims 1 to 4, for the manufacture of electrodes destined to aluminium industry, graphite electrodes (as a binder pitch or impregnating pitch) and synthetic graphite in general, binders for refractory industry, waterproof materials and electrometallurgical paste.
8.- Use of the anthracene oil obtained as byproduct of the process of claim 5 for the manufacture of anthracene paste.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP200400421 | 2004-02-20 | ||
| ES200400421A ES2238931B1 (en) | 2004-02-20 | 2004-02-20 | PROCEDURE FOR OBTAINING BREAS FROM ALQUITRANES AND ITS DISTILLATES FROM THE HULLA RENTAL, THROUGH OXIDATIVE THERMAL TREATMENT. |
| PCT/ES2005/000079 WO2005079136A2 (en) | 2004-02-20 | 2005-02-17 | Method for the production of brea from tar and the distillates thereof arising from coal tar by oxidative thermal treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2556482A1 true CA2556482A1 (en) | 2005-09-01 |
| CA2556482C CA2556482C (en) | 2012-11-27 |
Family
ID=34878432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2556482A Active CA2556482C (en) | 2004-02-20 | 2005-02-17 | Process for producing pitches from coal, tars and distillates thereof by oxidative thermal treatment |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1739153B1 (en) |
| JP (1) | JP2007525578A (en) |
| KR (1) | KR20070044800A (en) |
| CN (1) | CN1957061A (en) |
| AT (1) | ATE523579T1 (en) |
| BR (1) | BRPI0507215B1 (en) |
| CA (1) | CA2556482C (en) |
| DK (1) | DK1739153T3 (en) |
| ES (2) | ES2238931B1 (en) |
| PL (1) | PL1739153T3 (en) |
| WO (1) | WO2005079136A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2744579C1 (en) * | 2020-06-01 | 2021-03-11 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for obtaining binding pitch |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0800466B1 (en) * | 2008-03-05 | 2016-05-17 | Saint Gobain Cerâmicas & Plásticos Ltda | process of developing an ecological bonding system for a refractory mass |
| US8747651B2 (en) * | 2008-05-22 | 2014-06-10 | Graftech International Holdings Inc. | High coking value pitch |
| RU2477744C1 (en) * | 2011-11-29 | 2013-03-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" | Method for obtaining oil pitches |
| JP6076147B2 (en) * | 2013-03-11 | 2017-02-08 | 株式会社クレハ | Manufacturing method of high softening point pitch |
| KR102207835B1 (en) * | 2013-12-23 | 2021-01-26 | 재단법인 포항산업과학연구원 | Method for preparing pitch for carbon material using coal tar distillate and pitch for carbon material prepared by the same |
| CN108003910B (en) * | 2016-10-27 | 2020-06-19 | 宝武炭材料科技有限公司 | Preparation method of high-softening-point environment-friendly asphalt, asphalt and application |
| CN107446606B (en) * | 2017-08-30 | 2024-01-23 | 西北大学 | Process and device for producing modified asphalt, aliphatic hydrocarbon and aromatic hydrocarbon from coal tar |
| KR102202219B1 (en) * | 2018-12-13 | 2021-01-12 | 재단법인 한국탄소융합기술원 | Method for densifying carbon block |
| US11248172B2 (en) | 2019-07-23 | 2022-02-15 | Koppers Delaware, Inc. | Heat treatment process and system for increased pitch yields |
| CN111518583B (en) * | 2020-04-20 | 2021-03-05 | 华中科技大学 | Solid waste pyrolysis liquid phase product fused salt gradient treatment impurity removal and quality improvement device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146048A (en) * | 1977-05-02 | 1979-03-27 | Prefco Productions, Inc. | Fire damper and method of fabrication |
| GB2115437B (en) * | 1982-02-15 | 1985-10-02 | Nippon Oil Co Ltd | Pitch for carbon fibers |
| US4664774A (en) * | 1984-07-06 | 1987-05-12 | Allied Corporation | Low solids content, coal tar based impregnating pitch |
| US4892642A (en) * | 1987-11-27 | 1990-01-09 | Conoco Inc. | Process for the production of mesophase |
-
2004
- 2004-02-20 ES ES200400421A patent/ES2238931B1/en not_active Expired - Fee Related
-
2005
- 2005-02-17 BR BRPI0507215-8A patent/BRPI0507215B1/en active IP Right Grant
- 2005-02-17 PL PL05708091T patent/PL1739153T3/en unknown
- 2005-02-17 ES ES05708091T patent/ES2376938T3/en active Active
- 2005-02-17 KR KR1020067018337A patent/KR20070044800A/en not_active Application Discontinuation
- 2005-02-17 DK DK05708091.3T patent/DK1739153T3/en active
- 2005-02-17 CN CNA2005800117917A patent/CN1957061A/en active Pending
- 2005-02-17 WO PCT/ES2005/000079 patent/WO2005079136A2/en active Application Filing
- 2005-02-17 AT AT05708091T patent/ATE523579T1/en active
- 2005-02-17 JP JP2006553601A patent/JP2007525578A/en active Pending
- 2005-02-17 EP EP05708091A patent/EP1739153B1/en active Active
- 2005-02-17 CA CA2556482A patent/CA2556482C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2744579C1 (en) * | 2020-06-01 | 2021-03-11 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for obtaining binding pitch |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0507215B1 (en) | 2015-05-26 |
| DK1739153T3 (en) | 2012-01-09 |
| WO2005079136A2 (en) | 2005-09-01 |
| JP2007525578A (en) | 2007-09-06 |
| BRPI0507215A (en) | 2007-06-19 |
| ES2238931B1 (en) | 2007-06-16 |
| WO2005079136A3 (en) | 2005-12-29 |
| ATE523579T1 (en) | 2011-09-15 |
| PL1739153T3 (en) | 2012-03-30 |
| ES2238931A1 (en) | 2005-09-01 |
| EP1739153A2 (en) | 2007-01-03 |
| CA2556482C (en) | 2012-11-27 |
| KR20070044800A (en) | 2007-04-30 |
| CN1957061A (en) | 2007-05-02 |
| ES2376938T3 (en) | 2012-03-21 |
| EP1739153B1 (en) | 2011-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |