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JPS61115964A - Carbon black manufacturing method using metal bath method - Google Patents

Carbon black manufacturing method using metal bath method

Info

Publication number
JPS61115964A
JPS61115964AJP23525384AJP23525384AJPS61115964AJP S61115964 AJPS61115964 AJP S61115964AJP 23525384 AJP23525384 AJP 23525384AJP 23525384 AJP23525384 AJP 23525384AJP S61115964 AJPS61115964 AJP S61115964A
Authority
JP
Japan
Prior art keywords
gas
carbon black
metal bath
thermal black
oil
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.)
Pending
Application number
JP23525384A
Other languages
Japanese (ja)
Inventor
Yasuo Okuyama
奥山 泰男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan LtdfiledCriticalNKK Corp
Priority to JP23525384ApriorityCriticalpatent/JPS61115964A/en
Publication of JPS61115964ApublicationCriticalpatent/JPS61115964A/en
Pendinglegal-statusCriticalCurrent

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Abstract

PURPOSE:To produce thermal black having a small particle diameter in a high yield, by blowing raw oil and H2 or a gas mixture of H2 and CO at a high speed into a metal bath kept at a specified temp. CONSTITUTION:Raw oil 3 which is an (un)saturated higher hydrocarbon and H2 or a mixture of H2 and CO in a holder 5 are blown through a lance 6 into a metal bath kept at 1,250-1,650 deg.C and placed in a furnace 2 at a high speed to form thermal black. The resulting thermal black-contg. gas is passed through heat exchangers 7, 8 to recover sensible heat, and the gas is then passed through a cyclone 9, a bag filter 10 and then a scrubber 11 to collect thermal black, which is then fed to a granulation stage 12. Part of gas discharged from the scrubber 11 is fed to the gas holder 5 and the remainder of the gas is preheated in the heat exchanger 7 and recycled to the lance 6.

Description

Translated fromJapanese

【発明の詳細な説明】〔産業上の利用分野〕この発明は金属浴式によるカーボンブラックの製造法に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a method for producing carbon black using a metal bath method.

〔従来の技術〕[Conventional technology]

従来のカーボンブラックの製造方法は不完全燃焼法であ
る7アーネス法、チャンネル法等と、熱分解法であるア
セチレン法、サーマル法等に分類される。
Conventional methods for producing carbon black are classified into incomplete combustion methods such as the 7 Arness method and channel method, and thermal decomposition methods such as the acetylene method and thermal method.

ファーネス法は適量な空気とともに反応炉で原料を連続
的に不完全燃焼して製造する方法であり、原料として天
然ガスを使用するのはガス7アーネス法、粗軽油やエチ
レンボトムを使用するのはオイル7アーネス法と呼ばれ
ている。現在は、この7アーネス法がカーボンボラック
製造の主流を占めている。
The furnace method is a manufacturing method in which raw materials are continuously and incompletely combusted in a reactor with an appropriate amount of air.The gas 7 Arness method uses natural gas as a raw material, and the gas 7 Arness method uses crude light oil or ethylene bottoms as a raw material. It is called the Oil 7 Arness method. At present, this 7 Arnes method is the mainstream for producing carbon borac.

チャンネル法はガス状炭化水素を不完全燃焼させ、炎を
チャンネル鋼に衝突させてカーボンブラックを製造する
方法であり、この方法で生成したカーボンブラックは粒
度分布が狭く超微粒子であるため、専ら高級カラー用カ
ーボンブラックとして使用されている。
The channel method is a method of producing carbon black by incompletely burning gaseous hydrocarbons and colliding the flame with channel steel.The carbon black produced by this method has a narrow particle size distribution and is ultrafine, so it is used exclusively for high-grade products. Used as color carbon black.

アセチレン法はアセチレンガスが炭素と水素に分解する
ときに発生する大きな熱量を利用し、外部から熱を加え
ることなしに、アセチレンガスを連続的に分解する方法
であり、アセチレンを1800℃附近で熱分解すると電
気抵抗が0.22Ωαと低いカーボンブラックが生成す
るため乾電池棒等に利用されている。
The acetylene method is a method that uses the large amount of heat generated when acetylene gas is decomposed into carbon and hydrogen to continuously decompose acetylene gas without applying heat from the outside. When decomposed, carbon black with a low electrical resistance of 0.22 Ωα is produced, which is used in dry battery rods and the like.

サーマル法は空気あるいは炎の存在なしに天然ガスを蓄
熱炉中で熱分解してカーボンブラックを製造する方法で
ある。
The thermal method is a method of producing carbon black by thermally decomposing natural gas in a regenerator without the presence of air or flame.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

ガス7アーネス法の問題点は熱源として原料の天然ガス
を燃焼するため、生成カーボンブラックの収率が低いこ
とである。例えば天然ガスを原料とした場合第1表に示
すようなカーボンブラック収率が報告されている(カー
ボンブラック便覧(カー Rンブ−y”、ppB金11
)101頁1973)。
The problem with the Gas 7-Arness method is that the yield of carbon black produced is low because the raw material natural gas is burned as a heat source. For example, when natural gas is used as a raw material, carbon black yields as shown in Table 1 have been reported (Carbon Black Handbook, ppB Gold 11
) 101 p. 1973).

第  1  表またオイル7アーネス法ではカーボンブラックの収率は
30〜65%であるが、粒子径が小さくなるにしたがっ
て収率が低下し高価格となる。
Table 1 Also, in the Oil 7 Arness method, the yield of carbon black is 30 to 65%, but as the particle size becomes smaller, the yield decreases and the price becomes higher.

チャンネル法は優れた品質のカーボンブラックを生成す
るが、fx1表に示すように、さらに一段と収率が低く
なる。
Although the channel process produces carbon black of superior quality, it results in even lower yields, as shown in the fx1 table.

アセチレン法は高収率であるが、原料が高価なアセチレ
ンガスに制約されているのが難点である。
Although the acetylene method has a high yield, the disadvantage is that the raw material is limited to expensive acetylene gas.

サーマル法は収率は高いが、生成カーボンブラックの粒
子径が大きく、FTクラス(平均粒子径約150m)’
)、MTクラス(平均粒子径約500m)りである。こ
の方法では生成カーボンブラックの粒子径を小さくする
ために、併産する水素ガスを主体とするガスを希しゃく
剤として原料ガスに約%混合する。試みがされイている
が、それでも粒子径は150mPと非常に大きく、この
粒子径が大きいことの欠点を克服する必要がある。
Although the thermal method has a high yield, the particle size of the produced carbon black is large, making it FT class (average particle size of about 150 m).
), MT class (average particle diameter approximately 500 m). In this method, in order to reduce the particle size of the produced carbon black, approximately % of a co-produced gas mainly consisting of hydrogen gas is mixed with the raw material gas as a diluent. Although attempts have been made, the particle size is still very large at 150 mP, and it is necessary to overcome the disadvantages of this large particle size.

原料の熱分解によるサーマル法、アセチレン法は原料と
して天然ガスやアセチレンガスが使用されているが、油
を利用しているのは、プラズマ帯域での油の熱分解でカ
ーボンブラックが得られるプラズマ法のみである。プラ
ズマ法は微粒カーポンプチックが生成され、歩留も高い
が価格高となり、また8000℃程度の加熱をうけるた
め生成カーボンブラックの結晶子の厚さくLc )が6
7〜53Aと発達している難点がある。
The thermal method, which uses thermal decomposition of raw materials, and the acetylene method use natural gas or acetylene gas as raw materials, but the plasma method, which uses oil, obtains carbon black by thermally decomposing oil in a plasma zone. Only. In the plasma method, fine carpump ticks are produced, and the yield is high, but the price is high.Also, since the plasma method is heated to about 8000°C, the thickness of the crystallites of the produced carbon black (Lc) is 6.
7-53A has a developing drawback.

この発明はかかる問題点を解決したカーボンブラックの
製造方法を得ることを目的とするものである。
The object of the present invention is to provide a method for producing carbon black that solves these problems.

〔問題点を解決するための手段〕[Means for solving problems]

この発明のカーボンブラック製造法は1650℃〜12
00℃に保持された金属浴に、飽和高級炭化水素若しく
は不飽和高級炭化水素又はその両者の混合物である原料
油と同時に水素又は水素と一酸。
The method for producing carbon black of this invention is from 1650°C to 12°C.
Hydrogen or hydrogen and a monoacid are simultaneously added to a metal bath maintained at 00°C along with a feedstock oil that is a saturated higher hydrocarbon, an unsaturated higher hydrocarbon, or a mixture of both.

化炭素の混合ガスを高速で吹き込む方法である。This method involves blowing a mixed gas of carbon dioxide at high speed.

〔作 用〕[For production]

この発明において水素又は水素と一謙化炭素の混合ガス
を原料油と同時に高速で金属油に吹込むのは原料油の不
完全燃焼を行なうと共に、原料油を微粒化することに粒
子径の小さいサーマルブチツクを高収率で得る。
In this invention, hydrogen or a mixed gas of hydrogen and carbon monochloride is injected into the metal oil at high speed at the same time as the feedstock oil to achieve incomplete combustion of the feedstock oil and to atomize the feedstock oil so that the particle size is small. Thermal chips are obtained in high yield.

〔実施例〕〔Example〕

第1図、第2図はこの発明の一実施例のフローシートを
示し、第1図はカーボンブラック製造工程のフローシー
ト、第2図は金属浴昇温時の70−シートである。
1 and 2 show a flow sheet of an embodiment of the present invention, FIG. 1 is a flow sheet of a carbon black manufacturing process, and FIG. 2 is a 70-sheet when the temperature of a metal bath is raised.

まず第2図に示すように金属浴1の入った炉2中に原料
油3と純醗素4を供給し、原料油3を燃焼して金属浴1
を1600℃〜1800℃に昇温する。
First, as shown in FIG. 2, feedstock oil 3 and pure nitrogen 4 are supplied into a furnace 2 containing a metal bath 1, and the feedstock oil 3 is combusted to form a metal bath 1.
The temperature is raised to 1600°C to 1800°C.

なお、場合によっては酸素4と同時に石油コークスも吹
込むことも出来るが、石油コークス中には硫黄が含まれ
ているので、ガス精製工程に脱硫工程が必要である。
Note that, depending on the case, petroleum coke may also be blown in at the same time as oxygen 4, but since petroleum coke contains sulfur, a desulfurization process is required in the gas purification process.

炉2で発生したガスは熱交換器21.22により水23
を蒸気24とし、原料油3を予熱して顕熱回収されたの
ち、スクラバー25で洗滌し、ガスホル、イー26に貯
蔵される。このときスクラバー25から沈降槽27Jに
キッシュカーボンとカーボンブラックが混合したものが
回収される。なお、必要があれば、この混合物中に含ま
れる微量金属を除く精製工程が入って来る。
The gas generated in the furnace 2 is converted into water 23 by heat exchangers 21 and 22.
The raw material oil 3 is preheated and sensible heat is recovered by converting it into steam 24, and then it is cleaned by a scrubber 25 and stored in Gas Hole and E 26. At this time, a mixture of quiche carbon and carbon black is recovered from the scrubber 25 into the sedimentation tank 27J. Note that, if necessary, a purification step is included to remove trace metals contained in this mixture.

〜炉2中の金属浴1が1600℃〜1800°Cに昇温し
たのち、第1図のフルーシートに示すようにガス配管系
統を切り換えて、ホルダー5内の水素ガス又は水素ガス
と一酸化炭素の混合物を原料油3と共にランス6で炉2
中に高速で吹込む。
~ After the metal bath 1 in the furnace 2 has been heated to 1,600°C to 1,800°C, the gas piping system is switched as shown in the flow sheet of Fig. 1, and the hydrogen gas or hydrogen gas in the holder 5 is mixed with monoxide. A mixture of carbon and raw oil 3 are passed through a lance 6 to a furnace 2.
Blow inside at high speed.

金属浴1から発生したカーボンブラックを含むガスは熱
交換器7,8で顕熱回収されたのち、サイクロン9.バ
ッグフィルター10およびスクラバー11に送られ、カ
ーポンプフックが補集され造粒工程12に送られる。な
お生成したカーボンブラックに若干含有される微粒金属
13は風力分級14で除去する。
The gas containing carbon black generated from the metal bath 1 undergoes sensible heat recovery in heat exchangers 7 and 8, and then passes through the cyclone 9. It is sent to a bag filter 10 and a scrubber 11, collected by a car pump hook, and sent to a granulation step 12. Note that the fine metal particles 13 slightly contained in the produced carbon black are removed by air classification 14.

一方スクラバー11から排出される水素ガスはホルダー
5に導かれるが、一部は熱交換器7で予熱されて再びラ
ンス6で炉2中に吹込まれる。この場合、金属浴1の温
度が1200℃まで降下すれば水素ガスの吹込みを中止
し、ガス配管を切換え純酸素により原料油3を燃焼し金
属浴1を昇温させ、6゜なお、15は送給用ポンプであ
る。
On the other hand, hydrogen gas discharged from the scrubber 11 is guided to the holder 5, but a portion is preheated by the heat exchanger 7 and is again blown into the furnace 2 by the lance 6. In this case, when the temperature of the metal bath 1 drops to 1200°C, the injection of hydrogen gas is stopped, the gas piping is switched, the raw material oil 3 is burned with pure oxygen, and the temperature of the metal bath 1 is raised to 6° and 15°C. is a feeding pump.

次に上記実施例によりカーボンブラックを製造した実例
を示す。
Next, an example of producing carbon black according to the above example will be shown.

実例1炉1中で鉄浴量40kyの鉄浴温度を1600℃に昇温
したのち、水素ガス18ONl/m−を直径2襲のラン
ス6で吹込み、同時に原料油(コールタールピッチ軟化
点39°C)をα18kg/#、で吹込んだ。なお、こ
のときは水素ガスを450℃まで予熱したので、鉄浴温
度が1200℃まで低下することなく60分操業するこ
とができた。
Example 1 After raising the temperature of an iron bath with an iron bath amount of 40 ky to 1600°C in the furnace 1, 18 ONl/m of hydrogen gas was blown in with a lance 6 with two strokes in diameter, and at the same time raw oil (coal tar pitch softening point 39 °C) was blown at α18 kg/#. In this case, since the hydrogen gas was preheated to 450°C, the iron bath temperature could be operated for 60 minutes without dropping to 1200°C.

このとき、吹込んだ原料油5.4 kgに対してカーボ
ンブラックの生成量は4kgであり収率は74%X10
0であった。理論炭素収率は80%(=15.4xO,9
2)と計算される。また生成カーボンブラックの平均粒
子径は24mPであった。なお定量は困難であったが、
きらきら輝くキッシュカーボンの存在が少量認められた
At this time, the amount of carbon black produced was 4 kg for the 5.4 kg of raw material injected, and the yield was 74% x 10
It was 0. Theoretical carbon yield is 80% (=15.4xO,9
2) is calculated. The average particle size of the produced carbon black was 24 mP. Although it was difficult to quantify,
A small amount of sparkling quiche carbon was observed.

実例2上記原料油を酸素でガス化することにより、銅浴温度を
1580℃に昇温することができ(銅浴量40に9)、
この銅浴に上記と同様水素ガスを18ONil/yit
t 、で直径2簡のランスで原料油0.18ゆ廓と同時
に吹込んだが上記実例1と同様30分間操業することが
できた。
Example 2 By gasifying the above raw material oil with oxygen, the copper bath temperature can be raised to 1580°C (copper bath amount 40 to 9),
Hydrogen gas was added to this copper bath at a rate of 18ONil/yit in the same manner as above.
At t, 0.18 liters of raw material oil was injected simultaneously with a lance of 2 diameters, and the operation could be continued for 30 minutes as in Example 1 above.

このとき回収された微粉は4.6 kl?であったがC
uO粉が含まれており、比重分離して得られたカーボン
ブラックは3.9ユであり、理論炭素収率は78.5%
となる。また生成カーボンブラックの平均粒子径は46
mPであり、しかもキッシュカーボンの存在はほとんど
見られなかった。
The amount of fine powder collected at this time was 4.6 kl? But C
Contains uO powder, the carbon black obtained by gravity separation is 3.9 U, and the theoretical carbon yield is 78.5%.
becomes. The average particle size of the produced carbon black is 46
mP, and the presence of quiche carbon was hardly observed.

なお上記実施例では金属浴1の昇温工程とカーボンブラ
ックの製造工程の切換時にガス配管の切換を行なってい
るが第6図に示すように炉2の金属浴1底部から酸素4
と原料油3を吹込み、原料油6を燃焼させながら金属浴
1の温度を1600℃〜1200°C間の温度に管理し
、一方上部ランス6から水素ガス31又は水素と一酸化
炭素の混合ガスを原料油6と共に吹込み、ガス処理ライ
ン32で連続的にカーボンブラックを製造することがで
きる。
In the above embodiment, the gas piping is switched at the time of switching between the temperature raising process of the metal bath 1 and the carbon black manufacturing process, but as shown in FIG.
and raw material oil 3 are blown into the metal bath 1, and while the raw material oil 6 is being combusted, the temperature of the metal bath 1 is controlled at a temperature between 1600° C. and 1200° C., while hydrogen gas 31 or a mixture of hydrogen and carbon monoxide is injected from the upper lance 6. Carbon black can be continuously produced in the gas processing line 32 by blowing gas together with the raw material oil 6.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したように、1600℃〜1200
℃の金属洛中に高速で原料油を水素ガス又G訪flと一
酸化炭素の混合ガスと共に吹込むことから、原料油を微
粒化して不完全燃焼されることができ、微粒なカーボン
ブランクを高収率で得ることができる効果を有する。さ
らに従米のサーマル法と異なり原料としてクレオソート
油ならびに、それ以外の重質油を使用することができる
As explained above, this invention
By injecting raw material oil into a metal cylinder at high speed together with hydrogen gas or a mixed gas of carbon monoxide and carbon monoxide, the raw material oil can be atomized and incompletely combusted, and the fine carbon blank can be heated to a high temperature. It has the effect that can be obtained in yield. Furthermore, unlike the conventional thermal method, creosote oil and other heavy oils can be used as raw materials.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の実施例を示すフローシート、第2図
は上記実施例における金属浴昇温時の70−シート、第
3図は他の実施例の7四−シートを示す。1・・・金属浴、2・・・炉、3・・・原料油、4・・
・酸素、5.26・・・ガスホルダ、6・・・ランス、
7,8゜21.22・・・熱交換器、9・・・サイクロ
ン、10・・・バッグフィルタ、11,25・・・スク
ラバー、12・・・造粒工程。
FIG. 1 shows a flow sheet showing an embodiment of the present invention, FIG. 2 shows a 70-sheet when the temperature of the metal bath is raised in the above embodiment, and FIG. 3 shows a 74-sheet of another embodiment. 1... Metal bath, 2... Furnace, 3... Raw oil, 4...
・Oxygen, 5.26...Gas holder, 6...Lance,
7,8°21.22... Heat exchanger, 9... Cyclone, 10... Bag filter, 11, 25... Scrubber, 12... Granulation process.

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]1650〜1200℃に保持された金属浴に、飽和高級
炭化水素若しくは不飽和高級炭化水素又はその両者の混
合物である原料油と同時に水素又は水素と一酸化炭素の
混合ガスを高速で吹き込むことにより粒子径の小さいサ
ーマルブラックを高収率で得る金属浴式のカーボンブラ
ック製造法。
Particles are produced by blowing hydrogen or a mixed gas of hydrogen and carbon monoxide at high speed into a metal bath maintained at 1,650 to 1,200°C at the same time as a feedstock oil that is a saturated higher hydrocarbon, an unsaturated higher hydrocarbon, or a mixture of both. A metal bath method for producing carbon black that produces small-diameter thermal black in high yield.
JP23525384A1984-11-091984-11-09 Carbon black manufacturing method using metal bath methodPendingJPS61115964A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP23525384AJPS61115964A (en)1984-11-091984-11-09 Carbon black manufacturing method using metal bath method

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP23525384AJPS61115964A (en)1984-11-091984-11-09 Carbon black manufacturing method using metal bath method

Publications (1)

Publication NumberPublication Date
JPS61115964Atrue JPS61115964A (en)1986-06-03

Family

ID=16983337

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP23525384APendingJPS61115964A (en)1984-11-091984-11-09 Carbon black manufacturing method using metal bath method

Country Status (1)

CountryLink
JP (1)JPS61115964A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6878262B2 (en)2000-12-132005-04-12Matsushita Electric Industrial Co., Ltd.Analytical element and measuring device and substrate quantification method using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6878262B2 (en)2000-12-132005-04-12Matsushita Electric Industrial Co., Ltd.Analytical element and measuring device and substrate quantification method using the same

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