CN102392328B - Method for intensively producing carbon fiber raw material by coal pitch needle coke - Google Patents
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Abstract
The invention provides a method for intensively producing a carbon fiber raw material by coal pitch needle coke. The method comprises the following steps of: reacting a benzene insoluble substance and quinoline soluble substances BI and QS (Beta component) in the intensive production of the coal pitch needle coke at high temperature through hydrogen solvent oil with high H/C ratio; and processing into anisotropic carbon fiber. The obtained carbon fiber has the properties, such as high modulus, high strength, light weight, corrosion resistance and the like. The method is suitable for the carbon fiber intensively produced by the coal pitch needle coke and separation and processing utilization of raw material components of a fire-resisting material binder; compared with the single needle coke production, the coal pitch intensive technology is more reasonable and lower in cost, the quality production of the needle coke is ensured, the resource is comprehensively utilized, auxiliary products are increased, the production cost is lowered, and the added value is improved.
Description
Technical field
The present invention relates to the method for the intensive production carbon fiber material of a kind of tar needle-shape coke, belong to material with carbon element preparation and applied technical field.
Background technology
Carbon fiber has characteristics such as high-modulus, high strength, lightweight, corrosion-resistant, electric conductivity, x-ray penetrability, and its purposes is very extensive.At present, except global well-known asphalt base carbon fiber manufacturing firm such as U.S. Cytec company, Japanese Petoca Materials Co., Ltd, Mitsubishi Chemical Ind and Saudi Arabia Kurcha company, " Shanghai Dong Dao carbon element chemical industry " also produces the asphalt base carbon fiber raw material, but its crucial spinning technique then has been placed in Japan.In recent years " the grand chemical industry of Yan ore deposit state " studied with the active ingredient in the solvent extraction coal dust, and to extract filter, after hydrogenation polymerization etc. handles, obtain softening point and be 230 ℃ pitch, through further processing modulation, namely become spinnable asphalt base carbon fiber, and existing publication number is that the application for a patent for invention of CN101624730A is open; Henan coal industry chemical industry group forever coal kiloton carbon fiber project in end of last year success output MH300 high-performance carbon fibre product.
The coal tar pitch carbon fiber mainly is divided into isotropic pitch base carbon fibre (general purpose grade carbon fiber), each diversity asphalt base carbon fiber (high-performance carbon fibre, mesophase pitch-based carbon fibers).Wherein isotropic pitch base carbon fibre raw material sources are wide, and range of molecular weight distributions is wide, but generally all can not be directly used in spinning; And can be directly used in the anisotropy asphalt base carbon fiber of spinning, again to a quinoline insolubles (QI in the raw material
1) content and secondary quinoline insolubles (QI
2) viscosity etc. the requirement of comparison strictness is arranged.
Summary of the invention
For in production high-quality needle coke, can plasticity is poor, raw material that resins that caking property is strong becomes each diversity asphalt base carbon fiber, with further production high-performance carbon fibre, the invention provides the method for the intensive production carbon fiber material of a kind of tar needle-shape coke, to guarantee the high-quality production of needle coke, reduce production costs again simultaneously, improve its added value.
The present invention is to provide the method for the intensive production carbon fiber material of a kind of like this tar needle-shape coke, it is characterized in that comprising following each step:
A. get raw material by the prescription of following mass percent:
Coal tar pitch 30～50%
Modified coal-tar 40～50%
Conditioning agent 5.5～19.5%
Nickel, vanadium, cobalt remove agent 1.0～10.5%;
B. the raw material with steps A is 50～200 ℃ in temperature, speed is to separate under the condition of 10～50mm/min, obtain bottom separator and top separator, bottom separator wherein send the fire bond operation, is prepared into fire bond routinely;
C. the top separator that the separation of B step is obtained gets the solvent naphtha product on upper strata through centrifugation, and middle level thing and lower floor's thing, and the middle level thing send the needle coke production process as the maltha raw material, is prepared into the needle coke product routinely;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.1L～0.8L/min, feeding the H/C ratio is the hydrogen supply dissolvent oil of 0.5 ︰ 2.0 ~ 1.5, under the effect of hydrogen supply dissolvent oil, in 300～460 ℃ of thermotonuses 3～10 hours, get each diversity asphalt base carbon fiber raw material.
Modified coal-tar in the described steps A obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=0.5～1 ︰ 1～3, the amount of pressing 1L～5L/min feeds technical grade hydrogen in the miscella, is that 350～460 ℃, pressure are that 0.1～5Mpa, oil gas speed ratio are 0.1～3.0h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under react 3～15h after, namely obtain modified coal-tar.
Conditioning agent in the described steps A is that aromatization degree BMCI is 30～75 conditioning agent, formed by in the following organic matter one or more: crude benzol, toluene, heavy benzol, kerosene, diesel oil, ethylene glycol, propylene glycol, aromatic solvent naphtha, washing oil, carbolineum, take off aromatic solvent naphtha, wherein, aromatization degree BMCI is calculated by following formula:
BMCI=?48640/Tb,m+473.6d-456.8
In the formula, Tb, m are raw material boiling point mean value, and unit is K;
D is the density of raw material when 288.5K, and unit is kg/m
3
Conditioning agent preferred fragrance degree BMCI in the described steps A is 55 ~ 70 conditioning agent.
Coal tar pitch in the described steps A is mid temperature pitch, is the lighting coal tar by coal needle coke delay coking process by-product.
Nickel in the described steps A, vanadium, cobalt remove agent and obtain according to " N-methylimidazole preparation method of ionic liquid ", the list of references of this method is: Shanghai University Of Electric Power's journal, 2010(1), the 61-65 page or leaf, by Liu Kejia, " the synthetic and purification of the microwave method of alkyl imidazole ionic liquid " that Li Xiaohua, people such as Wang Luochun deliver.
The separation of described B step is finished in conventional settlement separator; The centrifugation of described C step is finished at conventional three sections whizzers; Perhaps the separation of described B step, C step is to finish in the separator that is combined into by sedimentation separation machine and three sections whizzers.
The hydrogen supply dissolvent oil of described D step is oxolane, polyethylene glycol, take off a kind of in aromatic solvent naphtha, the circulating solvent oil, perhaps wherein any three kinds.
Each diversity asphalt base carbon fiber raw material of described D step gained is 0.01 ~ 0.05ml/min with conventional NK-MZ01 nonwoven production device in air mass flow, technical grade SO
2Flow is 0.001 ~ 0.05ml/min,, technical grade NH
3Flow is under the condition of 0.001 ~ 0.03ml/min, does not melt pre-oxidation, oxidized activating routinely, after the carbonization reaction of molten asphalt fiber, does not make young's modulus and reaches 175 ~ 190Gpa, and elongation at break is each diversity carbon fiber of 0.7 ~ 1.0%.
Effect of the present invention and advantage: adopt such scheme, can utilize the lower floor's thing separated in the intensive production process of tar needle-shape coke easily, namely contain benzene insoluble and quinoline DDGS
BIWith
QS(βComponent) component, at high H/C than hydrogen supply dissolvent under the oily effect, make the progressively cracking of core aromatic hydrocarbons structure, form the product of cycloalkanes structure, bridged bond breaks to form scarce hydroperoxyl radical simultaneously, and polycondensation generates the more anisotropy asphalt base carbon fiber raw material of macromolecule mutually, passes through production technology and the device of conventional nonwoven fabric again, make each diversity asphalt base carbon fiber, and the gained carbon fiber have high-modulus, high strength, lightweight, performance such as corrosion-resistant.The present invention is more reasonable than single needle coke production, and cost is lower, has both guaranteed the high-quality production of needle coke, has fully utilized resource again, increases auxiliary product, reduces production costs, and improves added value.
The specific embodiment
Be described further below in conjunction with the present invention of embodiment.
Embodiment 1
A. get raw material by the prescription of following mass percent:
Coal tar pitch 50%
Modified coal-tar 40%
Conditioning agent 8.5%
Nickel, vanadium, cobalt remove agent 1.5%;
Wherein, described modified coal-tar obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=0.5 ︰ 2, the amount of pressing 1L/min feeds technical grade hydrogen, is that 350 ℃, pressure are 3Mpa, time to be that 12h, oil gas speed ratio are 3.0h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under the reaction after, namely obtain modified coal-tar; Described conditioning agent is that aromatization degree BMCI is 55 conditioning agent, is made up of following organic matter: crude benzol, toluene, heavy benzol, kerosene, diesel oil; Described coal tar pitch is mid temperature pitch, is the lighting coal tar through coal needle coke delay coking process by-product; Described nickel, vanadium, cobalt remove agent and obtain according to " N-methylimidazole preparation method of ionic liquid ";
B. the raw material with steps A is 200 ℃ in temperature, speed is to separate in conventional settlement separator under the condition of 30mm/min, obtain bottom separator and top separator, wherein the bottom separator send the fire bond operation to be prepared into fire bond;
C. the B step is separated the top separator centrifugation in conventional three sections whizzers that obtains, get the solvent naphtha product on upper strata, and middle level thing and lower floor's thing, the middle level thing send the needle coke production process to prepare the needle coke product as the maltha raw material;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.5L/min, feed H/C than the hydrogen supply dissolvent oil that is 0.5 ︰ 2.0, hydrogen supply dissolvent oil is oxolane, under hydrogen supply dissolvent oil effect, in 300 ℃ of thermotonuses 10 hours, get each diversity asphalt base carbon fiber raw material.
Each diversity asphalt base carbon fiber raw material of gained is used conventional NK-MZ01 nonwoven production device again, is 0.02ml/min, industry group SO in air mass flow
2Flow is 0.003ml/min, technical grade NH
3Flow is under the 0.001ml/min condition, does not melt pre-oxidation, oxidized activating routinely, after the charing of molten asphalt fiber etc. is not handled, namely is processed into young's modulus and reaches 185Gpa, each diversity carbon fiber of elongation at break＜0.8%.
Embodiment 2
A. get raw material by the prescription of following mass percent:
Coal tar pitch 40%
Modified coal-tar 45%
Conditioning agent 5.5%
Nickel, vanadium, cobalt remove agent 9.5%;
Wherein, described modified coal-tar obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=1 ︰ 1, the amount of pressing 5L/min feeds technical grade hydrogen, is that 400 ℃, pressure are 5Mpa, time to be that 3h, oil gas speed ratio are 2.0h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under the reaction after, namely obtain modified coal-tar; Described conditioning agent is that aromatization degree BMCI is 30 conditioning agent, is made up of following organic matter: ethylene glycol, propylene glycol, aromatic solvent naphtha, washing oil, carbolineum, take off aromatic solvent naphtha; Described coal tar pitch is mid temperature pitch, is the lighting coal tar transformation of the way through coal needle coke delay coking process by-product; Described nickel, vanadium, cobalt remove agent and obtain according to " N-methylimidazole preparation method of ionic liquid ";
B. the raw material with steps A is 50 ℃ in temperature, speed is separating by in sedimentation separation machine and the separator that three sections whizzers are combined in routine under the condition of 50mm/min, obtain bottom separator and top separator, wherein the bottom separator send the fire bond operation to be prepared into fire bond;
C. the B step is separated the centrifugation in the separator that is combined into by sedimentation separation machine and three sections whizzers of the top separator obtain, get the solvent naphtha product on upper strata, and middle level thing and lower floor's thing, the middle level thing send the needle coke production process to prepare the needle coke product as the maltha raw material;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.8L/min, feed H/C than the hydrogen supply dissolvent oil that is 0.5 ︰ 1.5, hydrogen supply dissolvent oil is polyethylene glycol, under hydrogen supply dissolvent oil effect, in 460 ℃ of thermotonuses 3 hours, get each diversity asphalt base carbon fiber raw material.
Each diversity asphalt base carbon fiber raw material of gained is used conventional NK-MZ01 nonwoven production device again, is 0.02ml/min, industry group SO in air mass flow
2Flow is 0.003ml/min, technical grade NH
3Flow is under the 0.001ml/min condition, does not melt pre-oxidation, oxidized activating routinely, after the charing of molten asphalt fiber etc. is not handled, namely is processed into young's modulus and reaches 186Gpa, each diversity carbon fiber of elongation at break＜0.7%.
Embodiment 3
A. get raw material by the prescription of following mass percent:
Coal tar pitch 30%
Modified coal-tar 49%
Conditioning agent 19.5%
Nickel, vanadium, cobalt remove agent 1.5%;
Wherein, described modified coal-tar obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=0.8 ︰ 3, the amount of pressing 3L/min feeds technical grade hydrogen, is that 460 ℃, pressure are 0.1Mpa, time to be that 15h, oil gas speed ratio are 0.1h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under the reaction after, namely obtain modified coal-tar; Described conditioning agent is that aromatization degree BMCI is 75 conditioning agent, is made up of organic matter kerosene; Described coal tar pitch is mid temperature pitch, is the lighting coal tar transformation of the way through coal needle coke delay coking process by-product; Described nickel, vanadium, cobalt remove agent and obtain according to " N-methylimidazole preparation method of ionic liquid ";
B. the raw material with steps A is 100 ℃ in temperature, speed is to separate in conventional settlement separator under the condition of 10mm/min, obtain bottom separator and top separator, wherein the bottom separator send the fire bond operation to be prepared into fire bond;
C. the B step is separated the centrifugation in the separator that is combined into by sedimentation separation machine and three sections whizzers of the top separator obtain, get the solvent naphtha product on upper strata, and middle level thing and lower floor's thing, the middle level thing send the needle coke production process to prepare the needle coke product as the maltha raw material;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.8L/min, feed H/C than the hydrogen supply dissolvent oil that is 0.5 ︰ 1.8, hydrogen supply dissolvent oil is polyethylene glycol, take off aromatic solvent naphtha, three kinds of miscellas of circulating solvent oil, under hydrogen supply dissolvent oil effect, in 400 ℃ of thermotonuses 7 hours, get each diversity asphalt base carbon fiber raw material.
Each diversity asphalt base carbon fiber raw material of gained is used conventional NK-MZ01 nonwoven production device again, is 0.02ml/min, industry group SO in air mass flow
2Flow is 0.003ml/min, technical grade NH
3Flow is under the 0.001ml/min condition, does not melt pre-oxidation, oxidized activating routinely, after the charing of molten asphalt fiber etc. is not handled, namely is processed into young's modulus and reaches 184Gpa, each diversity carbon fiber of elongation at break＜0.8%.
Embodiment 4
A. get raw material by the prescription of following mass percent:
Coal tar pitch 40%
Modified coal-tar 45%
Conditioning agent 10%
Nickel, vanadium, cobalt remove agent 5%;
Wherein, described modified coal-tar obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=1 ︰ 1.5, the amount of pressing 2L/min feeds technical grade hydrogen, is that 450 ℃, pressure are 2Mpa, time to be that 10h, oil gas speed ratio are 0.9h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under the reaction after, namely obtain modified coal-tar; Described conditioning agent is that aromatization degree BMCI is 70 conditioning agent, is made up of following organic matter: diesel oil, ethylene glycol; Described coal tar pitch is mid temperature pitch, is the lighting coal tar transformation of the way through coal needle coke delay coking process by-product; Described nickel, vanadium, cobalt remove agent and obtain according to " N-methylimidazole preparation method of ionic liquid ";
B. the raw material with steps A is 150 ℃ in temperature, speed is to separate by in sedimentation separation machine and the separator that three sections whizzers are combined under the condition of 20mm/min, obtain bottom separator and top separator, wherein the bottom separator send the fire bond operation to be prepared into fire bond;
C. the B step is separated the top separator centrifugation in conventional three sections whizzers that obtains, get the solvent naphtha product on upper strata, and middle level thing and lower floor's thing, the middle level thing send the needle coke production process to prepare the needle coke product as the maltha raw material;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.1L/min, feed H/C than the hydrogen supply dissolvent oil that is 0.5 ︰ 2.0, hydrogen supply dissolvent oil is oxolane, polyethylene glycol, take off the miscella of aromatic solvent naphtha, under hydrogen supply dissolvent oil effect, in 360 ℃ of thermotonuses 5 hours, get each diversity asphalt base carbon fiber raw material.
Each diversity asphalt base carbon fiber raw material of above-mentioned steps D gained is 0.02ml/min, technical grade SO with conventional NK-MZ01 nonwoven production device in air mass flow
2Flow is 0.003ml/min, technical grade NH
3Flow is under the 0.001ml/min condition, does not melt pre-oxidation, oxidized activating routinely, after the charing of molten asphalt fiber etc. is not handled, namely is processed into young's modulus and reaches 187Gpa, each diversity carbon fiber product of elongation at break＜0.9%.
Claims (5)
1. the method for the intensive production carbon fiber material of tar needle-shape coke is characterized in that comprising following each step:
A. get raw material by the prescription of following mass percent:
Coal tar pitch 30～50%
Modified coal-tar 40～50%
Conditioning agent 5.5～19.5%
Nickel, vanadium, cobalt remove agent 1.0～10.5%;
Described modified coal-tar obtains through following method: with the by-product oil of coal tar and needle coke delayed coking drums, after pressing the mass ratio mixing of Mei Jiao You ︰ by-product oil=0.5～1 ︰ 1～3, the amount of pressing 1L～5L/min feeds technical grade hydrogen in the miscella, is that 350～460 ℃, pressure are that 0.1～5MPa, oil gas speed ratio are 0.1～3.0h in temperature
-1, catalyst is γ-Al
2O
3, the ZSM-5 molecular sieve condition under react 3～15h after, namely obtain modified coal-tar;
Described coal tar pitch is the mid temperature pitch through the lighting coal tar transformation of the way of coal needle coke delay coking process by-product;
Described conditioning agent aromatization degree BMCI is 30～75;
B. the raw material with steps A is 50～200 ℃ in temperature, and speed is to separate under the condition of 10～50mm/min, obtains bottom separator and top separator, and wherein the bottom separator send the fire bond operation to be prepared into fire bond;
C. the top separator that the separation of B step is obtained gets the solvent naphtha product on upper strata through centrifugation, and middle level thing and lower floor's thing, and the middle level thing send the needle coke production process to prepare the needle coke product as the maltha raw material;
D. separate in the lower floor's thing that obtains at step C, press the mass ratio of hydrogen supply dissolvent You ︰ raw material=0.5 ︰ 1, amount with 0.1L～0.8L/min, feeding the H/C ratio is the hydrogen supply dissolvent oil of 0.5 ︰ 2.0 ~ 1.5, under the effect of hydrogen supply dissolvent oil, in 300～460 ℃ of thermotonuses 3～10 hours, get each diversity asphalt base carbon fiber raw material.
2. method according to claim 1, it is characterized in that: the conditioning agent in the described steps A is made up of in the following organic matter one or more: crude benzol, toluene, heavy benzol, kerosene, diesel oil, ethylene glycol, propylene glycol, washing oil, carbolineum, take off aromatic solvent naphtha, wherein, described aromatization degree BMCI is calculated by following formula:
BMCI=?48640/Tb,m+473.6d-456.8
In the formula, Tb, m are raw material boiling point mean value, and unit is K;
D is the density of raw material when 288.5K, and unit is kg/m
3
3. method according to claim 1, it is characterized in that: the conditioning agent in the described steps A is that aromatization degree BMCI is 55 ~ 70 conditioning agent.
4. method according to claim 1, it is characterized in that: the separation of described B step is finished in conventional settlement separator, the centrifugation of described C step is finished at conventional three sections whizzers, and perhaps the separation of described B step, C step is to finish in the separator that is combined into by conventional sedimentation separation machine and three sections whizzers.
5. method according to claim 1 is characterized in that: the hydrogen supply dissolvent oil of described D step is oxolane, polyethylene glycol, take off a kind of in aromatic solvent naphtha, the circulating solvent oil or three kinds.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793287A (en) * | 2005-12-29 | 2006-06-28 | 中钢集团鞍山热能研究院 | Process for producing tar needle-shape coke raw material |
| CN101302431A (en) * | 2008-06-30 | 2008-11-12 | 邯郸市鑫宝煤化工有限公司 | Preparation of asphalt for producing coal-based needle coke |
| CN101787299A (en) * | 2010-03-01 | 2010-07-28 | 上海尚元化工工程技术有限公司 | Method for extracting, producing and purifying pitch with mixed solvent |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629434B2 (en) * | 1987-06-26 | 1994-04-20 | 川崎製鉄株式会社 | Method for producing mesophase pitch |
| JPH0273885A (en) * | 1988-09-08 | 1990-03-13 | Mitsubishi Kasei Corp | Production of needle coke |
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2011
- 2011-08-29 CN CN 201110250881 patent/CN102392328B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793287A (en) * | 2005-12-29 | 2006-06-28 | 中钢集团鞍山热能研究院 | Process for producing tar needle-shape coke raw material |
| CN101302431A (en) * | 2008-06-30 | 2008-11-12 | 邯郸市鑫宝煤化工有限公司 | Preparation of asphalt for producing coal-based needle coke |
| CN101787299A (en) * | 2010-03-01 | 2010-07-28 | 上海尚元化工工程技术有限公司 | Method for extracting, producing and purifying pitch with mixed solvent |
Non-Patent Citations (2)
| Title |
|---|
| JP平2-73885A 1990.03.13 |
| JP昭64-4693A 1989.01.09 |
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Effective date of registration: 20131202 Address after: 650000 A46 room, 3 science and Technology Innovation Park, Kunming, Kunming, Yunnan Patentee after: Yunnan Coal & Energy Co., Ltd. Patentee after: East China University of Science and Technology Address before: 650000 Yunnan, Kunming open area by the open road, No. 3 science and Technology Innovation Park A46 room Patentee before: Yunnan Kungang Coal Coking Co., Ltd. Patentee before: East China University of Science and Technology |