JPH0324607Y2 - - Google Patents
Info
- Publication number
- JPH0324607Y2 JPH0324607Y2 JP1988159232U JP15923288U JPH0324607Y2 JP H0324607 Y2 JPH0324607 Y2 JP H0324607Y2 JP 1988159232 U JP1988159232 U JP 1988159232U JP 15923288 U JP15923288 U JP 15923288U JP H0324607 Y2 JPH0324607 Y2 JP H0324607Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube furnace
- carbon fiber
- carbon fibers
- vapor
- transition metal
- 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.)
- Expired
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 26
- 239000004917 carbon fiber Substances 0.000 claims description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000012808 vapor phase Substances 0.000 claims description 7
- 239000002134 carbon nanofiber Substances 0.000 claims description 5
- 238000007380 fibre production Methods 0.000 claims description 4
- 150000001722 carbon compounds Chemical class 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 150000002430 hydrocarbons Chemical class 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 229910052723 transition metal Inorganic materials 0.000 description 7
- 150000003624 transition metals Chemical class 0.000 description 7
- 239000004215 Carbon black (E152) Substances 0.000 description 6
- 239000012159 carrier gas Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011882 ultra-fine particle Substances 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 150000003623 transition metal compounds Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Inorganic Fibers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は気相法によつて高収率かつ連続的に炭
素繊維またはウイスカーを製造することが出来る
製造装置に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a production apparatus that can continuously produce carbon fibers or whiskers with high yield by a vapor phase method.
気相法によつて造られた炭素繊維は、PAN系、
ピツチ系の炭素繊維に比べて結晶性、電気伝導性
がよい等の優れた物性を有す。
Carbon fibers made by the vapor phase method are PAN-based,
It has superior physical properties such as better crystallinity and electrical conductivity than pitch-based carbon fibers.
従来、気相法炭素繊維を製造するには、通常第
２図に示すような装置が用いられている。すなわ
ち、加熱分解されて、炭素繊維の生長核となる遷
移金属超微粒子を生成する有機遷移金属化合物或
は遷移金属又はその化合物の気化器（遷移金属超
微粒子供給器）１を所定の温度に加熱して、これ
にH2、N2等のキヤリアガス２を通して所定量蒸
発させ、また、ベンゼン等の炭化水素気化器３に
キヤリアガス２を通して蒸発させ、これらを合流
せしめた有機遷移金属化合物或は遷移金属化合
物、炭化水素およびキヤリアガスの混合した原料
ガス４を、加熱器５によつて加熱されている管状
炉６に通して1100℃程度に加熱し炭素繊維７を生
成せしめる。また図示していないが遷移金属微粒
子を予めつくつておき、これを炭化水素等ととも
に散布することもできる。この炭素繊維７は、管
状炉６の出口に設けられた捕集器８に回収され、
管状炉６を出たガスは、フイルター９を通つて放
出される。 Conventionally, an apparatus as shown in FIG. 2 has generally been used to produce vapor-grown carbon fibers. That is, a vaporizer (transition metal ultrafine particle supply device) 1 for an organic transition metal compound or a transition metal or its compound that is thermally decomposed to produce transition metal ultrafine particles that become growth nuclei of carbon fibers is heated to a predetermined temperature. A predetermined amount of carrier gas 2 such as H 2 or N 2 is passed through this to evaporate it, and a carrier gas 2 such as benzene is evaporated by passing it through a hydrocarbon vaporizer 3 to combine these to form an organic transition metal compound or transition metal. A raw material gas 4 containing a mixture of a compound, a hydrocarbon, and a carrier gas is passed through a tubular furnace 6 heated by a heater 5 and heated to about 1100° C. to produce carbon fibers 7. Further, although not shown, transition metal fine particles may be prepared in advance and then dispersed together with the hydrocarbon or the like. This carbon fiber 7 is collected in a collector 8 provided at the outlet of the tube furnace 6,
The gas leaving the tube furnace 6 is discharged through a filter 9.
しかし、この方法においては、炭化水素に対す
る収率が高くなると（例えば、炭化水素がベンゼ
ンの場合60％以上）、生成した炭素繊維が管状炉
６の内部に付着、沈積し、これを閉塞する。その
ため、管状炉６に対する原料ガス４の供給を止
め、管状炉６内に蓄積した炭素繊維を回収しなけ
ればならず、連続運転が不可能となり、生産性が
極めて悪く、高価なものとなり、特殊な用途にし
か使用されていないのが現状である。 However, in this method, when the yield for hydrocarbons is high (for example, 60% or more when the hydrocarbon is benzene), the produced carbon fibers adhere and deposit inside the tube furnace 6, blocking it. Therefore, it is necessary to stop the supply of raw material gas 4 to the tube furnace 6 and recover the carbon fibers accumulated in the tube furnace 6, making continuous operation impossible, resulting in extremely low productivity, high cost, and special Currently, it is only used for certain purposes.
本考案は上記の事情に鑑み、高収率で、しかも
連続的に炭素繊維を製造することが出来る気相法
炭素繊維の製造装置を提供することを目的とす
る。
In view of the above circumstances, it is an object of the present invention to provide a vapor phase carbon fiber production apparatus that can continuously produce carbon fibers at a high yield.
本考案は上記の目的を達成するためになされた
もので、その要旨は、有機炭素化合物ガスを管状
炉を通し、高温に加熱して炭素繊維を生成させる
気相法炭素繊維の製造装置において、管状炉内に
管状炉とほぼ同じ中心軸線を有して回転駆動され
るスクリユー搬送機を設けたことを特徴とする気
相法炭素繊維の製造装置にある。
The present invention has been made to achieve the above object, and the gist thereof is to provide a vapor phase carbon fiber manufacturing apparatus in which organic carbon compound gas is passed through a tube furnace and heated to a high temperature to produce carbon fiber. There is provided an apparatus for manufacturing vapor-grown carbon fiber, characterized in that a screw conveyor that is rotationally driven and has approximately the same center axis as the tube furnace is provided in the tube furnace.
以下図面を参照して本考案を説明する。 The present invention will be explained below with reference to the drawings.
第１図は本考案の一実施例を示すもので、第２
図と同一部分には同一符号を付してその説明を省
略する。図中符号１１は管状炉６内に配設された
スクリユー搬送機で、外部に設けられたモータ１
２によつて低速回転され、生成した炭素繊維７は
捕集器８の方向に移動される。このように、スク
リユー搬送機１１が内蔵されているため、炭化水
素に対する収率が上昇し、生成する炭素繊維の量
が増大しても、定常的に捕集器８に送られるの
で、炭素繊維が管状炉６内に蓄積されて、これを
閉塞することはない。またスクリユー搬送機１１
は、その構成から原料ガスの流通を阻害せず、炭
素繊維の生成反応が妨げられることがない。 Figure 1 shows one embodiment of the present invention;
Components that are the same as those in the figures are given the same reference numerals and their explanations will be omitted. The reference numeral 11 in the figure is a screw conveyor installed inside the tube furnace 6, and the motor 1 installed outside
2, and the generated carbon fibers 7 are moved toward a collector 8. In this way, since the screw conveyor 11 is built-in, the yield for hydrocarbons increases, and even if the amount of carbon fibers produced increases, the carbon fibers are constantly sent to the collector 8. will not accumulate in the tube furnace 6 and block it. Also, the screw conveyor 11
Because of its structure, it does not impede the flow of raw material gas and the carbon fiber production reaction is not hindered.
このように、本考案の気相法炭素繊維製造装置
は、炭化水素に対して高収率の運転を連続して行
うことが出来るので、生産効率がよくなり、大幅
なコストダウンが可能となる。 In this way, the vapor phase carbon fiber manufacturing equipment of the present invention can continuously operate at a high yield for hydrocarbons, improving production efficiency and making it possible to significantly reduce costs. .
次に実施例を示して本考案を説明する。 Next, the present invention will be explained by showing examples.
〔実施例 １〕
第１図に示す装置を用い、内径：50mmのアルミ
ナ水平管状炉内にステンレス製のスクリユーフイ
ーダを設置し、モータによつて1rpmで回転させ
た。上記管状炉の温度は1100℃、キヤリアガスは
H2、炭化水素はベンゼン、遷移金属超微粒子供
給源はフエローセンを用い、H2：ベンゼン：フ
エローセンのモル比が80：15：５の原料ガスを、
20℃で500ml／minの速度で流し炭素繊維を製造
した。その結果、10時間運転を行つても、管状炉
の閉塞は発生せず、その間130ｇの炭素繊維が得
られた。[Example 1] Using the apparatus shown in FIG. 1, a stainless steel screw feeder was installed in an alumina horizontal tube furnace with an inner diameter of 50 mm, and rotated by a motor at 1 rpm. The temperature of the tube furnace above is 1100℃, and the carrier gas is
H 2 , benzene as the hydrocarbon, ferrocene as the transition metal ultrafine particle supply source, and a raw material gas with a molar ratio of H 2 :benzene:ferrocene of 80:15:5,
Carbon fibers were produced by flowing at a rate of 500 ml/min at 20°C. As a result, no clogging of the tube furnace occurred even after 10 hours of operation, and 130 g of carbon fiber was obtained during that time.
以上述べたように、本考案の炭素繊維製造装置
は、高収率に、しかも連続して炭素繊維を生成す
ることができるので、生産性が大幅に向上し、物
性の優れた炭素繊維を安価に供給することが可能
となり、従来、高価なために用途が制限されてい
た気相法による炭素繊維の需要を大幅に拡大し得
るものである。
As mentioned above, the carbon fiber production equipment of the present invention can produce carbon fibers continuously at a high yield, which greatly improves productivity and produces carbon fibers with excellent physical properties at low cost. This makes it possible to significantly expand the demand for carbon fiber produced by the vapor phase process, whose use has been limited due to its high cost.
第１図は本考案に係る気相法炭素繊維の製造装
置の一実施例を示す図、第２図は従来の気相法炭
素繊維の製造装置の図である。
１……気化器（遷移金属超微粒子供給器）、２
……キヤリアガス、３……炭化水素気化器、４…
…原料ガス、５……加熱器、６……管状炉、７…
…炭素繊維、８……捕集器、９……フイルター、
１１……スクリユー搬送機、１２……モータ。
FIG. 1 is a diagram showing an embodiment of a vapor-grown carbon fiber manufacturing apparatus according to the present invention, and FIG. 2 is a diagram of a conventional vapor-grown carbon fiber manufacturing apparatus. 1... Vaporizer (transition metal ultrafine particle supplier), 2
...Carrier gas, 3...Hydrocarbon vaporizer, 4...
... Raw material gas, 5... Heater, 6... Tubular furnace, 7...
...Carbon fiber, 8...Collector, 9...Filter,
11...screw conveyor, 12...motor.
Claims (1)
加熱して炭素繊維を生成させる気相法炭素繊維の
製造装置において、管状炉内に管状炉の中心軸線
とほぼ同じ中心軸線を有して回転駆動されるスク
リユー搬送機を設けたことを特徴とする気相法炭
素繊維の製造装置。 In a vapor-phase carbon fiber production device that passes organic carbon compound gas through a tube furnace and heats it to a high temperature to produce carbon fiber, a device rotates within the tube furnace with a center axis that is approximately the same as the center axis of the tube furnace. A manufacturing device for vapor grown carbon fiber, characterized in that it is equipped with a driven screw conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159232U JPH0324607Y2 (en) | 1988-12-07 | 1988-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159232U JPH0324607Y2 (en) | 1988-12-07 | 1988-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02370U JPH02370U (en) | 1990-01-05 |
| JPH0324607Y2 true JPH0324607Y2 (en) | 1991-05-29 |
Family
ID=31440262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988159232U Expired JPH0324607Y2 (en) | 1988-12-07 | 1988-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324607Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217699A (en) * | 1983-05-20 | 1984-12-07 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | Ferric nitrate treatment for producing graphite fiber growthnucleus by methane pyrolysis |
| JPS60231822A (en) * | 1984-04-25 | 1985-11-18 | Asahi Chem Ind Co Ltd | Production of carbonaceous fiber |
-
1988
- 1988-12-07 JP JP1988159232U patent/JPH0324607Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217699A (en) * | 1983-05-20 | 1984-12-07 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | Ferric nitrate treatment for producing graphite fiber growthnucleus by methane pyrolysis |
| JPS60231822A (en) * | 1984-04-25 | 1985-11-18 | Asahi Chem Ind Co Ltd | Production of carbonaceous fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02370U (en) | 1990-01-05 |
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