JP2946099B2 - Production method of tar oil - Google Patents
Production method of tar oilInfo
- Publication number
- JP2946099B2 JP2946099B2 JP2004341A JP434190A JP2946099B2 JP 2946099 B2 JP2946099 B2 JP 2946099B2 JP 2004341 A JP2004341 A JP 2004341A JP 434190 A JP434190 A JP 434190A JP 2946099 B2 JP2946099 B2 JP 2946099B2
- Authority
- JP
- Japan
- Prior art keywords
- coal
- tar oil
- present
- average reflectance
- production method
- 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 - Lifetime
Links
- 239000002641 tar oil Substances 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000003245 coal Substances 0.000 claims description 32
- 238000000197 pyrolysis Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000003763 carbonization Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000012263 liquid product Substances 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102200118166 rs16951438 Human genes 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、タール油の製造方法に係り、更に詳しく
は、石炭の急速熱分解法によりタール油を製造する場
合、生成するタール油の芳香族性及び縮合度を高くする
ことにより、熱安定性の良好なタール油を製造する方法
に関連するものである。Description: TECHNICAL FIELD The present invention relates to a method for producing tar oil, and more particularly, to a method for producing tar oil by a rapid pyrolysis method of coal, the aroma of tar oil produced. The present invention relates to a method for producing a tar oil having good thermal stability by increasing the group property and the degree of condensation.
従来の石炭の急速熱分解法においては、通常、クリー
ンな液状生成物を可及的に多く取得することを目的とし
ていることから、原料の石炭としては、高揮発分（低平
均反射率ｏ）の低炭化度炭が用いられている。In the conventional rapid pyrolysis method of coal, since the purpose is usually to obtain as much clean liquid product as possible, the raw material coal has a high volatile content (low average reflectance o). Is used.
しかしながら、原料の石炭として低炭化度炭が用いら
れる従来の方法によれば、急速熱分解のように二次熱分
解のほとんどないプロセスでは、原料石炭の影響が生成
するタール油の性状に直接現出して低芳香族性、低縮合
度で熱安定性の悪い、即ちコーキング特性の劣るタール
油となり、炭材原料として利用するには不利である、と
いう問題があった。However, according to the conventional method in which low-rank coal is used as the raw coal, in the process with little secondary pyrolysis such as rapid pyrolysis, the effect of the raw coal directly affects the properties of the tar oil produced. There is a problem in that the resulting tar oil has low aromaticity, a low degree of condensation and poor thermal stability, that is, poor coking properties, and is disadvantageous for use as a carbonaceous material.
しかも、かかる従来の方法では、生成するタール油の
コーキング材料としての利用を考えた場合は、前述の欠
点がないのに加え、化学構造的に側鎖の少ない、高芳香
族性でかつ高縮合度の熱安定性の良好なタール油が必要
となる、という問題があった。In addition, in the conventional method, when considering the use of the generated tar oil as a caulking material, in addition to the above-described disadvantages, in addition to having a low side chain in chemical structure, it is highly aromatic and highly condensed. There is a problem that a tar oil having good thermal stability is required.
本発明は、上述のような従来の課題を解決し得る、石
炭の急速熱分解法による新規なタール油の製造方法の提
供を目的とする。An object of the present invention is to provide a novel method for producing tar oil by a rapid pyrolysis method of coal, which can solve the conventional problems as described above.
本発明者らは、かかる目的を達成すべく鋭意検討を進
めた結果、本発明に到達した。すなわち、本発明は、石
炭の急速熱分解法によりタール油を製造するに当たり、
原料炭として平均反射率（ｏ）が1.05以上の高炭化度
炭又は低炭化度炭と高炭化度炭を２種類以上配合して配
合炭の平均反射率（ｏ）を1.05以上とした混合炭を用
いることにより、高芳香族性でかつ高縮合度を有するタ
ール油を得ることを特徴とするタール油の製造方法を要
旨とするものである。The present inventors have made intensive studies to achieve such an object, and as a result, have reached the present invention. That is, the present invention, when producing tar oil by the rapid pyrolysis method of coal,
As a raw coal, blended coal with an average reflectance (o) of 1.05 or higher, or a mixture of two or more high-carbon or low-carbon coals and a high-carbon coal with an average reflectance (o) of 1.05 or higher The purpose of the present invention is to provide a method for producing a tar oil, characterized in that a tar oil having a high aromaticity and a high degree of condensation is obtained by using.
以下、本発明を添付図面とともに詳細に説明するに、
第１図は、本発明で使用する装置の一例の概略図であ
る。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of an example of an apparatus used in the present invention.
第１図において、所定粒度に粉砕された原料の石炭
（平均反射率ｏ≧1.05）を石炭フィーダー（１）を用
いて一定の供給速度で竪型の管型流通式の反応器（３）
に送り込んでやる。他方、所定温度まで昇温されたキャ
リァーガスも同時に反応器へ送られ、ここで石炭と高温
のキャリァーガスとが接触し、石炭は非常に短かい時間
で昇温され熱分解される。熱分解生成物中の固形分のチ
ャーはチャーポット（７）に補集され、ガス及びタール
蒸気等は次の冷却トラップ（８）を通過し、冷却され、
タール等の液状生成物はこの冷却トラップ（８）に集め
られ、ガスは系外にブロワー（10）によって排出され
る。ここで冷却トラップ（８）に集められたオイル分を
タール油として、その諸性状を分析した。In FIG. 1, a raw tube coal (average reflectance o ≧ 1.05) pulverized to a predetermined particle size is fed at a constant feed rate using a coal feeder (1) and a vertical tubular flow reactor (3).
I'll send it to On the other hand, the carrier gas heated to a predetermined temperature is also sent to the reactor at the same time, where the coal and the high-temperature carrier gas come into contact, and the coal is heated and pyrolyzed in a very short time. The solid char in the pyrolysis product is collected in the char pot (7), and gas and tar vapor pass through the next cooling trap (8) and are cooled,
Liquid products such as tar are collected in the cooling trap (8), and gas is discharged out of the system by a blower (10). Here, the oil collected in the cooling trap (8) was used as tar oil and its properties were analyzed.
また、上記にその一例を示した本発明の方法の実施例
で用いられる必須の原料石炭、好ましい反応温度及び反
応時間の各条件は次のとおりである。The essential raw coal used in the embodiment of the method of the present invention, an example of which is described above, and preferred conditions of the reaction temperature and the reaction time are as follows.
（原料石炭） 平均反射率（ｏ）が1.05以上の高炭化度炭を使用す
る。又は低炭化度炭と高炭化度炭を２種類以上配合して
配合炭の平均反射率（ｏ）を1.05以上とした混合炭も
用いられる。(Raw coal) High-carbon coal whose average reflectance (o) is 1.05 or more is used. Alternatively, a blended coal in which two or more low-rank coals and high-rank coals are blended and the average reflectance (o) of the blended coal is 1.05 or more is also used.
石炭粒度は、3mm以下のものが80％程度以下であれば
良いが、望ましくは35メッシュ以下程度の粒径の石炭が
用いられる。The particle size of the coal should be about 80% or less for 3 mm or less, but coal having a particle size of about 35 mesh or less is desirably used.
（反応温度） 原料石炭の熱分解については、石炭種にもよるが、約
650℃付近からＣ−Ｃ結合の開裂が激しくなり、炭化水
素ガス，液状生成物の収率が増大する。更に850℃程度
を越えると、一旦生成した分子量の大きいラジカル成分
の重縮合によるチャーへの転換が激しくなるため、炭素
の液状生成物への転換率が再び低下し始める。従って、
反応温度としては、600〜1000℃、望ましくは、650〜85
0℃程度が適当である。(Reaction temperature) Regarding the thermal decomposition of raw coal, it depends on the type of coal.
From around 650 ° C., the C—C bond cleavage becomes severe, and the yield of hydrocarbon gas and liquid products increases. Further, when the temperature exceeds about 850 ° C., the conversion of the once generated radical component having a large molecular weight into char by virtue of polycondensation becomes severe, and the conversion ratio of carbon into a liquid product starts to decrease again. Therefore,
The reaction temperature is 600 to 1000 ° C, preferably 650 to 85
About 0 ° C is appropriate.
（反応時間） 反応時間は、温度，滞留時間等によって昇温速度が変
化するために一義的には決定しにくいが、〜10秒程度
で、石炭の昇温速度は、数度〜106℃／秒程度の急速加
熱が適当である。(Reaction time) The reaction time is difficult to determine uniquely because the heating rate varies depending on the temperature, residence time, etc., but it takes about 10 seconds, and the heating rate of coal is several degrees to 10 6 ° C. A rapid heating of about / sec is appropriate.
以上詳細に説明した方法でタール油の製造を行った本
発明方法による実施例の場合と、原料石炭の性状を大き
く異にする以外は該実施例と同様の反応条件下でタール
油の製造を行った従来の方法による比較例の場合とを、
下記第１表にまとめて比較表示する。The production of tar oil was carried out under the same reaction conditions as in this example, except that the properties of the raw coal were significantly different from those of the example according to the method of the present invention in which the production of tar oil was performed by the method described in detail above. The case of the comparative example by the conventional method performed
The following Table 1 summarizes and displays the results.
さらに、本発明を実施例で具体的に説明すると以下の
ようになる。即ち、原料石炭の炭化度を示す平均反射率
（ｏ）が1.6（本発明）と0.7（比較例）の場合につい
て、下記第１表に示したように同一の反応条件で急速熱
分解して生成したタール油の性状は、本発明の方が高芳
香族性，高縮合度となっていることが分かる。Further, the present invention will be specifically described with reference to the following examples. That is, when the average reflectance (o) indicating the degree of carbonization of the raw coal is 1.6 (invention) and 0.7 (comparative example), rapid pyrolysis is performed under the same reaction conditions as shown in Table 1 below. It can be seen that the properties of the generated tar oil are higher in aromaticity and higher degree of condensation in the present invention.
〔発明の効果〕 本発明の石炭の急速熱分解による新規なタール油の製
造方法によれば、生成するタール油は、第１表に示す生
成タール油の性状からも明らかなように、高芳香族性及
び高縮合度を有する熱安定性の良好なもので、コーキン
グ性の良いことから、これを各種炭材原料として使用す
る際非常に使用しやすい、という工業的価値ある顕著な
効果を奏することができる。 [Effects of the Invention] According to the novel method for producing tar oil by rapid pyrolysis of coal of the present invention, the produced tar oil has a high aromaticity, as is clear from the properties of the produced tar oil shown in Table 1. It has good heat stability with high aromaticity and a high degree of condensation, and has good industrial value because it has good coking properties and is very easy to use when it is used as a raw material for various carbonaceous materials. be able to.
第１図は、本発明で使用する装置の一例の概略図であ
る。 1:石炭フィーダー 2:キャリァーガス予熱炉、 3:反応器、 4:反応炉、 5.:キャリァーガス流量計、 6.:差圧計、 7:チャー受器、 8:液状生成物捕集器、（冷却トラップ） 9:ガスサンプラー、 10:ブロワー、 11:ガスメーター。FIG. 1 is a schematic view of an example of an apparatus used in the present invention. 1: Coal feeder 2: Carrier gas preheating furnace, 3: Reactor, 4: Reactor, 5 .: Carrier gas flow meter, 6 .: Differential pressure gauge, 7: Char receiver, 8: Liquid product collector, (Cooling Trap) 9: Gas sampler, 10: Blower, 11: Gas meter.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 梅原 徹治 香川県坂出市番の州町１番地 三菱化成 株式会社坂出工場内 (56)参考文献 特開 昭59−38282（ＪＰ，Ａ) 特開 昭55−40763（ＪＰ，Ａ) 特開 平１−279990（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C10G 1/10 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tetsuji Umehara No. 1 Bancho, Sakaide-shi, Kagawa Prefecture Mitsubishi Sakaide Co., Ltd. Sakaide Factory (56) References 40763 (JP, A) JP-A-1-279990 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C10G 1/10
Claims (1)
するに当たり、原料炭として平均反射率（ｏ）が1.05
以上の高炭化度炭又は低炭化度炭と高炭化度炭を２種類
以上配合して配合炭の平均反射率（ｏ）を1.05以上と
した混合炭を用いることにより、高芳香族性でかつ高縮
合度を有するタール油を得ることを特徴とするタール油
の製造方法。(1) In producing tar oil by a rapid pyrolysis method of coal, an average reflectance (o) as a raw coal is 1.05.
High aromaticity and high aromaticity can be obtained by blending two or more of the above high or low carbonization coals and high carbonization coals and using the blended coal with an average reflectance (o) of 1.05 or more. A method for producing tar oil, comprising obtaining a tar oil having a high degree of condensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004341A JP2946099B2 (en) | 1990-01-11 | 1990-01-11 | Production method of tar oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004341A JP2946099B2 (en) | 1990-01-11 | 1990-01-11 | Production method of tar oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03210391A JPH03210391A (en) | 1991-09-13 |
| JP2946099B2 true JP2946099B2 (en) | 1999-09-06 |
Family
ID=11581736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004341A Expired - Lifetime JP2946099B2 (en) | 1990-01-11 | 1990-01-11 | Production method of tar oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2946099B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5498692B2 (en) * | 2008-12-19 | 2014-05-21 | 出光興産株式会社 | Process for producing modified coal and hydrocarbon oil |
| JP7131460B2 (en) * | 2019-03-29 | 2022-09-06 | 三菱ケミカル株式会社 | Analysis method and analysis device for tar-containing gas |
-
1990
- 1990-01-11 JP JP2004341A patent/JP2946099B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03210391A (en) | 1991-09-13 |
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