JPS6348396A - Coal/oil mixture - Google Patents

Coal/oil mixture

Info

Publication number
JPS6348396A
JPS6348396A JP19182386A JP19182386A JPS6348396A JP S6348396 A JPS6348396 A JP S6348396A JP 19182386 A JP19182386 A JP 19182386A JP 19182386 A JP19182386 A JP 19182386A JP S6348396 A JPS6348396 A JP S6348396A
Authority
JP
Japan
Prior art keywords
coal
oil
alkali
mixture
oil mixture
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
Application number
JP19182386A
Other languages
Japanese (ja)
Other versions
JPH0762140B2 (en
Inventor
Yasunobu Mizuno
水野 康伸
Nobuhiro Ueshima
伸宏 上嶋
Yoshikazu Ogura
義和 小倉
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.)
Neos Co Ltd
Original Assignee
Neos Co 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 Neos Co Ltd filed Critical Neos Co Ltd
Priority to JP61191823A priority Critical patent/JPH0762140B2/en
Publication of JPS6348396A publication Critical patent/JPS6348396A/en
Publication of JPH0762140B2 publication Critical patent/JPH0762140B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To obtain a coal/oil mixture causing no significant ash deposition in a pipe etc. during use thereof, by adding an alkali to a coal/oil mixture comprising a fuel oil and coal powder dispersed therein to adjust the pH of the mixture to a specific value. CONSTITUTION:Pulverized coal (e.g., Saxonbel coal) of which at least 70% passes a 200-mesh sieve is dispersed in a fuel oil (e.g., heavy oil) in an (a) to (b) wt. ratio of 30-60:70-40 to obtain a coal/oil mixture. A surface active agent is added to the mixture as a dispersion stabilizer in an amt. of 0.05-0.5wt%, followed by addition of an alkali (e.g., dimethylamine) selected from among hydroxides and carbonates of an alkali (alkaline earth) metal, ammonia and various amines so that the pH value of the aq. dispersion contg. 1wt% coal/oil mixture is at least 8.5, pref. 9-12.

Description

【発明の詳細な説明】 彦業上の利用分野 本発明は混炭油に関する。[Detailed description of the invention] Industrial application field The present invention relates to mixed coal oil.

従来技術 混炭浦はコロイド燃料または膠質燃料とも称され、炭化
水素系燃料油に石炭微粉末(以下、微粉炭と言う)を安
定に分散させたものであって、石炭を流動状態で使用し
得るため、将来の燃料資源および都市ガス原料として広
く嘱望されているものである。
Conventional technology Blended coal is also called colloidal fuel or colloidal fuel, and is made by stably dispersing pulverized coal (hereinafter referred to as pulverized coal) in hydrocarbon fuel oil, and the coal can be used in a fluid state. Therefore, it is widely expected to be used as a future fuel resource and city gas raw material.

混炭油は流動性であるため石油などの液体燃料と同様タ
ンカーやパイプライン輸送でき、石炭に比べ貯蔵、取り
扱いが容易であり、自然発火の危険性がなく、しかし単
位容積当たりの発S量が高く、従って輸送コストが節減
できる等、多くの11点があるためその製造技術に関す
る多くの研究成果が報じられている。
Because blended coal oil is fluid, it can be transported by tanker or pipeline like liquid fuels such as petroleum, and it is easier to store and handle than coal, and there is no risk of spontaneous combustion, but the amount of S emitted per unit volume is low. Many research results have been reported regarding its manufacturing technology because it has many 11 points, such as being expensive and therefore reducing transportation costs.

特に近年、炭化水素系の界面活性剤を用いて石炭粉末を
石油に分散さ仕る技術が多々提案されている。
Particularly in recent years, many techniques have been proposed for dispersing coal powder into petroleum using hydrocarbon surfactants.

上記提案された混炭曲用分散安定剤はその目的の殆どが
鉱物油中に石炭微粉末を分散させるためのらのであり、
石炭微粉末中に、昆在する粘土質成分の沈着については
全(考′范されていない。
Most of the purposes of the dispersion stabilizer for blended coal proposed above are to disperse fine coal powder in mineral oil;
The deposition of clay components present in fine coal powder has not been fully considered.

発明が解決1.ようとする問4畢萩 前述のごとく混炭曲用分散安定剤として種々の界面活性
剤が提案されており、その−郊はすてに実用化の段階に
至っているが、最近、石炭微粉末として、風化の著しい
炭種、粘土質の多い炭種等を用いると燃焼装置や循環パ
イプ等の機壁に灰白色の沈着物を発生し、これが燃焼効
率や装置の保守に悪影響を与えることが判明した。この
問題はノニオン界面活性剤を用いるとき特に著しい。
Invention solves the problem 1. Question 4 BihagiAs mentioned above, various surfactants have been proposed as dispersion stabilizers for blended coal, and they have already reached the stage of practical application. It has been found that when coal types that are significantly weathered or have a high clay content are used, gray-white deposits are generated on the walls of combustion equipment, circulation pipes, etc., and this has a negative impact on combustion efficiency and equipment maintenance. . This problem is particularly acute when using nonionic surfactants.

本発明は上記沈着物(以下天分と言う)の発生の少ない
混炭油を提供することを目的とする。
An object of the present invention is to provide a mixed coal oil in which the above-mentioned deposits (hereinafter referred to as deposits) are less generated.

問題点を解決するための手段 本発明は石炭微粉末を燃料油に分散させて得られる混炭
浦においてその1%水性分散液のI)Hが8.5以上と
なるようアルカリを添加した混炭油に関する。本発明混
炭油は風化の著しい石炭(以下、風化炭と言う)から得
られる混炭油において特に有効であるがこれに限定され
るものではない。
Means for Solving the Problems The present invention is a mixed coal oil obtained by dispersing fine coal powder in fuel oil, in which an alkali is added so that the I)H of the 1% aqueous dispersion is 8.5 or more. Regarding. The mixed coal oil of the present invention is particularly effective in mixed coal oil obtained from significantly weathered coal (hereinafter referred to as weathered coal), but is not limited thereto.

風化炭の代表的な例はプレアソール炭やウェスタンコー
ル、サクソンベル炭等である。微粉炭とは200メツン
ユ篩を70%以上通化するよう粉砕した石炭であって、
混炭油はこれを燃料油、例えば重油、灯油、軽油、工作
的、潤滑油等の廃油、タール油等に分散して得られる。
Typical examples of weathered charcoal include Pleasole charcoal, Western coal, and Saxon Bell charcoal. Pulverized coal is coal that has been pulverized through a 200-meter sieve to pass 70% or more.
Mixed coal oil is obtained by dispersing it in fuel oil, such as heavy oil, kerosene, light oil, industrial waste oil, lubricating oil, etc., tar oil, etc.

微粉炭と燃料油との混合比は30ニア0〜60:、10
(重量比)が−般であり、これに分散安定剤として界面
活性剤を0.05〜0.5重量%程度配合する。
The mixing ratio of pulverized coal and fuel oil is 30 near 0 to 60:, 10
(weight ratio) is approximately 0.05 to 0.5% by weight of a surfactant as a dispersion stabilizer.

本発明では上記混炭、11]にさらに適当なアルカリを
添加して混炭浦1重量%水性分散液のpHが85以上、
好ましくは9〜I2となるよう調節ずろ。
In the present invention, an appropriate alkali is further added to the above-mentioned mixed coal, 11], so that the pH of the 1% by weight aqueous dispersion of mixed coal is 85 or higher,
Preferably, the adjustment gap is 9 to I2.

pHの調節に使用するアルカリとしては、ナトリウム、
カリウム等のアルカリ金属水酸化物、炭酸塩、カルシウ
ム、バリウム等のアルカリ土類金属の水酸化物、炭酸塩
、酸化物、アンモニア、および各種アミン類等が例示さ
れる。アミン類としては炭素数3以下の第1吸、第2級
、第3汲アミン塩、第4級アンモニウム塩、モノエタノ
ールアミン、ジェタノールアミン、トリエタノールアミ
ン等のアルカノールアミン類、モルホリン、ピリジン等
の含窒素異項環化合物、アニリン等の芳香族アミンが例
示されるが、これより大きいアルキル基を有するもので
あってもよい。しかしながら、高級アミンは高価であり
、皮膚障害があり、加えてpHを調節するためにより多
くの量を必要とする。したがって本発明においては、低
級アミンを使用するのが適当である。
Alkali used to adjust pH include sodium,
Examples include alkali metal hydroxides such as potassium, carbonates, alkaline earth metal hydroxides such as calcium and barium, carbonates, oxides, ammonia, and various amines. Examples of amines include primary, secondary, and tertiary amine salts with 3 or less carbon atoms, quaternary ammonium salts, alkanolamines such as monoethanolamine, jetanolamine, and triethanolamine, morpholine, and pyridine. Examples include nitrogen-containing heterocyclic compounds and aromatic amines such as aniline, but compounds having a larger alkyl group may also be used. However, higher amines are expensive, cause skin damage, and additionally require higher amounts to adjust the pH. Therefore, in the present invention, it is appropriate to use lower amines.

アルカリとしてアンモニアを使用するときは混炭油中の
含水量を増加させないため、アンモニアガスを直接混炭
油中に吹き込んで行ってもよい。
When ammonia is used as the alkali, ammonia gas may be directly blown into the mixed coal oil in order not to increase the water content in the mixed coal oil.

また、酸化アルキレン付加型ノニオン界面活性剤を混炭
曲用分散剤として用いるときは反応に供したアルカリ触
媒を中和することなく、本発明のp■(調整に用いても
よい。無機アルカリを使用するときはその微粉末を直接
混炭油中に添加してもよく、あるいは水または使用する
分散剤に溶解または分散ざ什て使用してもよい。一般的
には灰分の沈着を防止するために水分はできるだけ少な
い方がよく、好ましくは混炭浦全量の5重量%以上にす
べきてはない。特に好ましくは、水分含量2重・7%に
押さえるのが適当である。
In addition, when using the alkylene oxide adduct type nonionic surfactant as a dispersant for mixed carbon, the alkali catalyst used in the reaction may be used for adjustment without neutralizing the alkali catalyst. The fine powder can be added directly to the mixed coal oil, or it can be dissolved or dispersed in water or the dispersant used.Generally, to prevent ash deposition, The moisture content should be as low as possible, preferably not more than 5% by weight of the total amount of the mixed coal pool.Particularly preferably, the moisture content should be kept at 2.7%.

本発明混炭浦のp)(はこれを1%水性分散液として測
定する。p)(の測定は蒸留水または脱イオン水に混炭
油1%を添加し、激しく撹拌しく例えば、分液漏斗中で
少なくとも1分間振盪し)、静置後浦層を分離し水槽の
I)Hを測定する。本発明の混炭油に用いる分散安定剤
はノニオン界面活性剤、アニオン界面活性剤、カチオン
界面活性剤いずれてもよいが、ノニオン界面活性剤のご
とく天分の沈着を比較的起こし易い分散安定剤に使用し
て特に有効である。
The mixed coal oil of the present invention is measured as a 1% aqueous dispersion. To measure p), add 1% of the mixed coal oil to distilled water or deionized water, stir vigorously, and use a separatory funnel, for example. Shake for at least 1 minute), leave to stand, separate the ura layer, and measure I)H in the aquarium. The dispersion stabilizer used in the mixed coal oil of the present invention may be a nonionic surfactant, an anionic surfactant, or a cationic surfactant. It is especially effective to use.

ノニオン界面活性剤としてはブヂルフェノール、オクヂ
ルフェノール、ノニルフェノール等のアルキルフェノー
ルもしくはそのポルマリン縮合物の酸化エチレン付加物
、酸化プロピレン付加物、酸化プロピレンと酸化エチレ
ンの付加物など、高汲アルコールの酸化エチレン付加物
、醇化エチレンと酸化プロピレンのノ1重合体、ナフト
ールまたはそのポルマリン縮合物の酸化エチレン付加物
、フェニルフェノール、スチレン化フェノール等の酸f
ヒアルキレン付加物、ソルビタンアルキレ−■・7つ酸
化アルキレン付加物、ヒマシ’r1hの酸化アルキレン
付加物、モノまたはノグリセリトの酸化アルキレン付加
物、ポリグリセリンの酸化エチレン付加物などが例示さ
れる。また、高級脂肪酸とポリエチレングリコールのエ
ステルであってもよい。酸化エチレンの付加モル数は1
0〜150モル、好ましくは20〜100モルである。
Examples of nonionic surfactants include ethylene oxide adducts of alkylphenols such as butylphenol, ocdylphenol, and nonylphenol, or their polymeric condensates, propylene oxide adducts, adducts of propylene oxide and ethylene oxide, and ethylene oxide of high-quality alcohols. Adducts, monopolymers of ethylene oxide and propylene oxide, ethylene oxide adducts of naphthol or its polymerine condensate, phenylphenol, styrenated phenol, and other acids.
Examples include hyalkylene adducts, sorbitan alkylene-1/7 alkylene oxide adducts, alkylene oxide adducts of castor 'r1h, alkylene oxide adducts of mono- or noglycerides, and ethylene oxide adducts of polyglycerin. Alternatively, it may be an ester of higher fatty acid and polyethylene glycol. The number of moles of ethylene oxide added is 1
The amount is 0 to 150 mol, preferably 20 to 100 mol.

また、酸化プロピレンと酸化エチレンをアルキルフェノ
ール等に付加する場合には、酸化プロピレンを予め1〜
lOモル、次いで酸化エチレンをlO〜150モル程度
付加するのが適当である。本発明にとって特に好ましい
のはアルキルフェノール、特にノニルフェノール、また
はそのホルマリン縮合物(好ましくは1〜15モル、特
にI〜5モル重縮合体)の酸化エチレン付加物、ま1こ
は酸化プロピレンと酸化エチレン付加物である。アニオ
ン界面活性剤としてはドデシルベンゼンスルホン酸等の
アルキルベンゼンスルホン酸のアルカリ塩、(アルキル
)ナフタレンスルホン酸ホルマリン縮合物のアルカリ塩
、ジオクヂルスルホサクシネート、高級アルコールの硫
酸エステルアルカリ塩、アルキルフェノールや高級アル
コールの酸化エチレン付加物の硫酸エステル塩等が例示
される。
In addition, when adding propylene oxide and ethylene oxide to alkylphenol, etc., propylene oxide must be added in advance to
It is appropriate to add 10 mol and then about 10 to 150 mol of ethylene oxide. Particularly preferred for the present invention are ethylene oxide adducts of alkylphenols, especially nonylphenols, or their formalin condensates (preferably 1 to 15 mol, especially I to 5 mol polycondensates), or ethylene oxide adducts with propylene oxide. It is a thing. Examples of anionic surfactants include alkali salts of alkylbenzenesulfonic acids such as dodecylbenzenesulfonic acid, alkali salts of (alkyl)naphthalenesulfonic acid formalin condensates, dioquidyl sulfosuccinate, alkali salts of sulfuric esters of higher alcohols, alkylphenols and higher Examples include sulfate ester salts of ethylene oxide adducts of alcohols.

以下、実施例を挙げて本発明を説明する。The present invention will be explained below with reference to Examples.

害施例1 サクソンベル炭の微粉末(200メツシユ パス=84
%)49重量部と重油50重量部をミルで湿式製造した
。i!炭浦に表−1に示す混炭曲用分散剤0.2重量部
を配合し、それを同じく表−1に示す各種アルカリを用
いてp Hを約IOに調節し、その5009をとってホ
モミキサーで4000 rpmで撹拌し、5分間子分に
混合し、混炭油を調製した。
Harm Example 1 Fine powder of Saxon Bell charcoal (200 mesh passes = 84
%) and 50 parts by weight of heavy oil were wet-produced in a mill. i! 0.2 parts by weight of the dispersant for mixed coal bending shown in Table 1 was blended into the coal pool, and the pH was adjusted to about IO using various alkalis shown in Table 1, and the 5009 was removed to homogenize. Mixed coal oil was prepared by stirring with a mixer at 4000 rpm and mixing with the helical for 5 minutes.

上記のごとく調製した混炭浦1eをオートクレーブに入
れ、110°C,I 0kg7cm”、窒素雰囲気下で
、ステンレス製2枚羽根を用い、700rpmで20時
間撹拌し、次いて羽根を取り出し、トルエンで洗浄して
残ったスラッジ量を測定した。
The mixed coal pool 1e prepared as above was placed in an autoclave and stirred at 110°C, I 0 kg 7 cm'', and nitrogen atmosphere at 700 rpm for 20 hours using two stainless steel blades, then the blade was taken out and washed with toluene. The amount of sludge remaining was measured.

結果を表−1に示す。The results are shown in Table-1.

表−1 発明の効果 本発明の混炭油は使用時、燃焼装置および循環パイプ等
への天分の析出が少なく、装置保守等に関する問題か解
消されろ。
Table 1 Effects of the Invention When the blended coal oil of the present invention is used, there is little precipitation of natural gas into combustion equipment, circulation pipes, etc., and problems related to equipment maintenance etc. can be solved.

Claims (1)

【特許請求の範囲】 1、石炭粉末を燃料油に分散させて得られる混炭油にお
いて1%の水性分散液のpHが8.5以上となるようア
ルカリを添加した混炭油。 2、アルカリが低級アミンである第1項記載の混炭油。 3、アルカリがアンモニアガスである第1項記載の混炭
油。 4、1%水性分散液のpHが9〜12である第1項記載
の混炭油。
[Claims] 1. A mixed coal oil obtained by dispersing coal powder in fuel oil, in which an alkali is added so that the pH of a 1% aqueous dispersion becomes 8.5 or higher. 2. The mixed coal oil according to item 1, wherein the alkali is a lower amine. 3. The mixed coal oil according to item 1, wherein the alkali is ammonia gas. 4. The mixed coal oil according to item 1, wherein the pH of the 1% aqueous dispersion is 9 to 12.
JP61191823A 1986-08-15 1986-08-15 Mixed coal oil Expired - Lifetime JPH0762140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61191823A JPH0762140B2 (en) 1986-08-15 1986-08-15 Mixed coal oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61191823A JPH0762140B2 (en) 1986-08-15 1986-08-15 Mixed coal oil

Publications (2)

Publication Number Publication Date
JPS6348396A true JPS6348396A (en) 1988-03-01
JPH0762140B2 JPH0762140B2 (en) 1995-07-05

Family

ID=16281114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61191823A Expired - Lifetime JPH0762140B2 (en) 1986-08-15 1986-08-15 Mixed coal oil

Country Status (1)

Country Link
JP (1) JPH0762140B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107164004A (en) * 2017-04-21 2017-09-15 华北电力大学(保定) A kind of utilization alkaline matter breaking sludge floc sedimentation promotes sludge water-coal-slurry into the method for slurry
US9777235B2 (en) 2016-04-04 2017-10-03 Allard Services Limited Fuel oil compositions and processes
JP2019059985A (en) * 2017-09-27 2019-04-18 Jfeスチール株式会社 Blast furnace operation method and fine coal
US10676676B2 (en) 2016-04-04 2020-06-09 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748598A (en) * 1980-09-03 1982-03-19 Shin Meiwa Ind Co Ltd Safety device for height service car
JPS58103590A (en) * 1981-12-15 1983-06-20 Neos Co Ltd Production of coal/oil mixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748598A (en) * 1980-09-03 1982-03-19 Shin Meiwa Ind Co Ltd Safety device for height service car
JPS58103590A (en) * 1981-12-15 1983-06-20 Neos Co Ltd Production of coal/oil mixture

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9777235B2 (en) 2016-04-04 2017-10-03 Allard Services Limited Fuel oil compositions and processes
US10676676B2 (en) 2016-04-04 2020-06-09 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
US11254886B2 (en) 2016-04-04 2022-02-22 Arq Ip Limited Fuel oil / particulate material slurry compositions and processes
US11286438B2 (en) 2016-04-04 2022-03-29 Arq Ip Limited Fuel oil / particulate material slurry compositions and processes
US11319492B2 (en) 2016-04-04 2022-05-03 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
US11718794B2 (en) 2016-04-04 2023-08-08 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
CN107164004A (en) * 2017-04-21 2017-09-15 华北电力大学(保定) A kind of utilization alkaline matter breaking sludge floc sedimentation promotes sludge water-coal-slurry into the method for slurry
JP2019059985A (en) * 2017-09-27 2019-04-18 Jfeスチール株式会社 Blast furnace operation method and fine coal

Also Published As

Publication number Publication date
JPH0762140B2 (en) 1995-07-05

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