JPS6337836B2 - - Google Patents
Info
- Publication number
- JPS6337836B2 JPS6337836B2 JP56148340A JP14834081A JPS6337836B2 JP S6337836 B2 JPS6337836 B2 JP S6337836B2 JP 56148340 A JP56148340 A JP 56148340A JP 14834081 A JP14834081 A JP 14834081A JP S6337836 B2 JPS6337836 B2 JP S6337836B2
- Authority
- JP
- Japan
- Prior art keywords
- coal
- slurry
- gasifier
- water
- gasification
- 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
- 239000003245 coal Substances 0.000 claims description 28
- 239000002002 slurry Substances 0.000 claims description 22
- 238000002309 gasification Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 2
- -1 alkylbenzene sulfonates Chemical class 0.000 description 14
- 239000007789 gas Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003476 subbituminous coal Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical class O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、原料石炭を65〜90％の高濃度のスラ
リーにしてガス化炉へ供給し、高いガス化効率で
合成ガスを得ることができる石炭のガス化方法に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention makes it possible to obtain synthesis gas with high gasification efficiency by supplying raw coal to a gasification furnace in the form of a slurry with a high concentration of 65 to 90%. This article relates to a coal gasification method that can be used.
従来から、石炭を部分酸化して合成ガスを得る
プロセスにおいて、原料石炭を粉砕して石炭・水
スラリーを調製しガス化炉へ供給する湿式供給法
が提案されている。
Conventionally, in the process of partially oxidizing coal to obtain synthesis gas, a wet supply method has been proposed in which raw coal is pulverized to prepare a coal/water slurry and the slurry is supplied to a gasifier.
しかし上記の方法では、スラリー濃度が50％以
下と低いため、ガス化炉内で大量の水を蒸発する
ことになり、ガス化効率が低くなるという問題が
あつた。
However, in the above method, since the slurry concentration is as low as 50% or less, a large amount of water is evaporated in the gasifier, resulting in a problem of low gasification efficiency.
本発明者らは、上記の問題を解決すべく鋭意研
究を重ねた結果、粉砕石炭と少量の水との混合物
に有機物からなる発泡性の分散剤を添加し十分混
合すると、生成する気泡が石炭粒子層内に介在す
ることによつて流動性が生じることを知見した。 As a result of intensive research to solve the above problem, the inventors of the present invention discovered that when a foaming dispersant made of an organic substance is added to a mixture of pulverized coal and a small amount of water and mixed sufficiently, the bubbles generated are It was found that fluidity is caused by the presence of particles in the layer.
本発明は上記の諸点に鑑みなされたもので、高
いガス化効率で石炭をガス化することができる方
法の提供を目的とするものである。 The present invention was made in view of the above points, and an object of the present invention is to provide a method that can gasify coal with high gasification efficiency.
本発明の石炭のガス化方法は、石炭をガス化炉
へ供給し石炭を部分酸化して合成ガスを得る方法
において、粉砕石炭、水および有機物からなる発
泡性分散剤を十分混合して石炭65〜90％の高濃度
のスラリーを調製し、この高濃度のスラリーをガ
ス化炉へ供給することを特徴としている。
The coal gasification method of the present invention is a method of supplying coal to a gasification furnace and partially oxidizing the coal to obtain synthesis gas. It is characterized by preparing a slurry with a high concentration of ~90% and supplying this highly concentrated slurry to a gasifier.
以下、本発明の構成を図面に基づいて説明す
る。第１図は本発明の方法を実施する装置の一例
を示している。原料石炭（粘結炭、非粘結炭のい
ずれでもよい）を予め10mm以下程度に粗砕した
後、湿式粉砕機１に供給する。同時に水および有
機物からなる発泡性の分散剤を加え、湿式粉砕機
１内において原料石炭を粉砕するとともに、粉砕
石炭と水および分散剤とを十分混練する。このと
きの分散剤の添加量は、対石炭比0.01〜３重量
％、望ましくは0.3〜1.5重量％であり、スラリー
の濃度（石炭含有量）はドライベースで65〜90重
量％、望ましくは70〜80重量％である。また粉砕
後の石炭粒度は200メツシユ通過率10〜80％、望
ましくは30〜70％、湿式粉砕機１の出口における
スラリーの粘度は300〜3000c.p程度である。 Hereinafter, the configuration of the present invention will be explained based on the drawings. FIG. 1 shows an example of an apparatus for carrying out the method of the invention. Raw coal (either coking coal or non-caking coal may be used) is crushed in advance to about 10 mm or less, and then supplied to the wet crusher 1. At the same time, water and a foaming dispersant made of an organic substance are added, and the raw coal is pulverized in the wet pulverizer 1, and the pulverized coal, water, and dispersant are sufficiently kneaded. The amount of the dispersant added at this time is 0.01 to 3% by weight, preferably 0.3 to 1.5% by weight based on the coal, and the concentration of the slurry (coal content) is 65 to 90% by weight, preferably 70% by weight on a dry basis. ~80% by weight. The particle size of the coal after pulverization is such that the 200 mesh passing rate is 10 to 80%, preferably 30 to 70%, and the viscosity of the slurry at the outlet of the wet pulverizer 1 is approximately 300 to 3000 c.p.
本発明において用いられる有機物からなる発泡
性分散剤は、アニオン系、ノニオン系、カチオン
系の界面活性剤などを単独でまたは組み合わせて
用いられ、炭種によつて適宜選択される。具体的
にはアニオン系界面活性剤としては、アルキルベ
ンゼンスルホン酸塩、アルキル硫酸エステル塩、
ポリオキシエチレンアルキル（アルキルフエノー
ル）硫酸エステル塩、アルキルリン酸エステル
塩、ジアルキルスルホコハク酸エステル塩、アク
リル酸もしくは／および無水マレイン酸共重合
体、多環式芳香族スルホン化物もしくはホルマリ
ン化合物などが使用され、カチオン系界面活性剤
としては、アルキルアミン塩、第４級アミン塩な
どが使用され、ノニオン系界面活性剤としては、
ポリオキシアルキルエーテル、ポリオキシエチレ
ンアルキルフエノールエーテル、オキシエチレ
ン・オキシプロピレンブロツクポリマー、ポリオ
キシエチレンアルキルアミン、ソルビタン脂肪酸
エステル、ポリオキシエチレンソルビタン脂肪酸
エステルなどが使用され、両性系界面活性剤とし
ては、アルキルベタインなどが使用され、また
１、２、３モノアミン、ジアミンなどのアミン化
合物が使用される。 The foamable dispersant made of an organic substance used in the present invention may be anionic, nonionic, cationic surfactants, etc., used alone or in combination, and is appropriately selected depending on the type of carbon. Specifically, anionic surfactants include alkylbenzene sulfonates, alkyl sulfate ester salts,
Polyoxyethylene alkyl (alkylphenol) sulfate salts, alkyl phosphate salts, dialkyl sulfosuccinate salts, acrylic acid or/and maleic anhydride copolymers, polycyclic aromatic sulfonates, formalin compounds, etc. are used. As cationic surfactants, alkyl amine salts, quaternary amine salts, etc. are used, and as nonionic surfactants,
Polyoxyalkyl ethers, polyoxyethylene alkyl phenol ethers, oxyethylene/oxypropylene block polymers, polyoxyethylene alkyl amines, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, etc. are used, and as amphoteric surfactants, alkyl Betaine, etc. are used, and amine compounds such as 1, 2, and 3 monoamines and diamines are also used.
湿式粉砕機１で調製されたスラリーは、一旦コ
レクトタンク２に貯留された後、高圧スラリーポ
ンプ３によつて線速度0.5〜５ｍ／sec、望ましく
は２〜４ｍ／secでガス化炉４へ圧送され、酸素、
水蒸気とともにガス化炉４内に噴出される。石炭
粒子は高温部分酸化、水性ガス化反応などによつ
てガス化炉４内を下向きに流れる間にガス化され
る。ガス化炉４内の温度は1100〜1700℃、望まし
くは1400〜1600℃であり、圧力は10〜90atmに維
持されている。スラリーはガス化炉４内に噴出さ
れたとき、スラリー中に気泡が介在していること
によつて、石炭粒子間の凝集は殆ど起こらず、分
散性がよく、速やかに酸素と混合し、高いガス化
効率でガス化して水素、一酸化炭素を主成分とす
る合成ガスに転換される。このときの主な反応式
はつぎのとおりである。 The slurry prepared by the wet crusher 1 is once stored in a collect tank 2, and then is pumped to the gasifier 4 by a high-pressure slurry pump 3 at a linear velocity of 0.5 to 5 m/sec, preferably 2 to 4 m/sec. oxygen,
It is ejected into the gasifier 4 together with water vapor. The coal particles are gasified while flowing downward in the gasifier 4 by high-temperature partial oxidation, water gasification reaction, and the like. The temperature inside the gasifier 4 is 1100 to 1700°C, preferably 1400 to 1600°C, and the pressure is maintained at 10 to 90 atm. When the slurry is ejected into the gasifier 4, due to the presence of air bubbles in the slurry, there is almost no aggregation between coal particles, the dispersibility is good, and it quickly mixes with oxygen, resulting in a high It is gasified with high gasification efficiency and converted into synthesis gas whose main components are hydrogen and carbon monoxide. The main reaction formula at this time is as follows.
Ｃ＋2H2→CH4
Ｃ＋H2O→CO＋H2
Ｃ＋2H2O→CO2＋2H2
Ｃ＋CO2→2CO
CO＋H2O→CO2＋H2
Ｃ＋O2→CO2
2C＋O2→2CO
なお５はロツクホツパ、６は廃熱ボイラ、７は
沈殿槽、８，９は熱交換器である。 C+2H 2 →CH 4 C+H 2 O→CO+H 2 C+2H 2 O→CO 2 +2H 2 C+CO 2 →2CO CO+H 2 O→CO 2 +H 2 C+O 2 →CO 2 2C+O 2 →2CO Note that 5 is a lock hopper and 6 is a waste heat boiler. , 7 is a settling tank, and 8 and 9 are heat exchangers.
第２図は本発明の方法を実施する装置の他の例
を示している。すなわち原料石炭を予め10mm以下
程度に粗砕した後、さらに乾式粉砕機１０によつ
て200メツシユ通過率10〜80％、望ましくは30〜
70％に微粉砕する。この粉砕炭、水および有機物
からなる発泡性分散剤を混練機１１に供給し、十
分混練することによつて、流動性のある高濃度ス
ラリーを調製する。他の構成は第１図の場合と同
様である。 FIG. 2 shows another example of an apparatus for carrying out the method of the invention. That is, after the raw material coal is crushed in advance to about 10 mm or less, it is further crushed by the dry crusher 10 to a 200-mesh pass rate of 10 to 80%, preferably 30 to 80%.
Finely grind to 70%. The foamable dispersant made of the pulverized coal, water and organic matter is supplied to the kneader 11 and sufficiently kneaded to prepare a highly concentrated slurry with fluidity. The other configurations are the same as in the case of FIG.
つぎに本発明の実施例について説明する。 Next, embodiments of the present invention will be described.
実施例
中国産の亜瀝青炭を予め粗砕した後、湿式粉砕
機に水および有機物からなる発泡性分散剤（石炭
に対して1.0重量％）とともに供給して高濃度ス
ラリーを調製した。なお中国産の亜瀝青炭の性状
は下記のとおりであつた。Example Sub-bituminous coal from China was crushed in advance, and then fed to a wet crusher together with water and a foaming dispersant (1.0% by weight based on the coal) consisting of an organic substance to prepare a highly concentrated slurry. The properties of sub-bituminous coal produced in China were as follows.
水 分 7. 2％
灰 分 8. 9％
揮発分 28. 2％
固定炭素 60. 0％
燃料比 2.13
湿式粉砕機出口のスラリーの性状は、粒度１mm
以下で200メツシユ通過率30％、スラリー濃度74
％（ドライベース）、粘度1600c.pであつた。つい
でこのスラリーをガス化炉に供給して、圧力
30atm、温度1500℃の条件で酸化剤として酸素を
吹き込んでガス化した。得られた生成ガスの組成
は下記のとおりであつた。 Moisture 7. 2% Ash 8. 9% Volatile content 28. 2% Fixed carbon 60. 0% Fuel ratio 2.13 The slurry at the exit of the wet crusher has a particle size of 1 mm.
Under 200 mesh passing rate 30%, slurry concentration 74
% (dry base), and the viscosity was 1600 c.p. This slurry is then supplied to a gasifier to reduce the pressure
It was gasified by blowing oxygen as an oxidizing agent under the conditions of 30 atm and 1500°C. The composition of the resulting gas was as follows.
H2 36. 8％
CO 51. 9％
CO2 11. 1％
N2 0.21％
CH4 0.02％
H2S 0.01％
〔発明の効果〕
以上説明したように、本発明の方法によれば、
スラリー濃度が高いため水の蒸発によるガス化効
率の低下が小さくて済み、またスラリー中に気泡
が介在しているため、ガス化炉内に吹き込まれた
ときに酸素との混合が十分かつ速やかに起こり、
このためガス化炉内でのガス化効率が高くなると
いう効果を奏する。 H 2 36. 8% CO 51. 9% CO 2 11. 1% N 2 0.21% CH 4 0.02% H 2 S 0.01% [Effects of the Invention] As explained above, according to the method of the present invention,
Because the slurry has a high concentration, the drop in gasification efficiency due to water evaporation is small, and because there are air bubbles in the slurry, it is sufficiently and quickly mixed with oxygen when it is blown into the gasifier. happened,
Therefore, the effect of increasing the gasification efficiency in the gasifier is achieved.
第１図は本発明の方法を実施する装置の一例を
示すフローシート、第２図は他の例を示すフロー
シートである。
１……湿式粉砕機、２……コレクトタンク、３
……高圧スラリーポンプ、４……ガス化炉、５…
…ロツクホツパ、６……廃熱ボイラ、７……沈殿
槽、８，９……熱交換器、１０……乾式粉砕機、
１１……混練機。
FIG. 1 is a flow sheet showing an example of an apparatus for carrying out the method of the present invention, and FIG. 2 is a flow sheet showing another example. 1...Wet crusher, 2...Collect tank, 3
...High pressure slurry pump, 4...Gasifier, 5...
... Lockhopper, 6 ... Waste heat boiler, 7 ... Sedimentation tank, 8, 9 ... Heat exchanger, 10 ... Dry crusher,
11...Kneading machine.
Claims (1)
合成ガスを得る方法において、粉砕石炭、水およ
び有機物からなる発泡性分散剤を十分混合して石
炭65〜90％の高濃度のスラリーを調製し、この高
濃度のスラリーをガス化炉へ供給することを特徴
とする石炭のガス化方法。1 In a method of supplying coal to a gasification furnace and partially oxidizing the coal to obtain synthesis gas, a highly concentrated slurry of 65 to 90% coal is created by thoroughly mixing pulverized coal, water, and a foaming dispersant made of organic matter. A coal gasification method characterized by preparing and supplying this highly concentrated slurry to a gasification furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14834081A JPS5849790A (en) | 1981-09-19 | 1981-09-19 | Gasification of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14834081A JPS5849790A (en) | 1981-09-19 | 1981-09-19 | Gasification of coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5849790A JPS5849790A (en) | 1983-03-24 |
| JPS6337836B2 true JPS6337836B2 (en) | 1988-07-27 |
Family
ID=15450575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14834081A Granted JPS5849790A (en) | 1981-09-19 | 1981-09-19 | Gasification of coal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849790A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61228093A (en) * | 1985-04-01 | 1986-10-11 | Mitsubishi Heavy Ind Ltd | Fuel gasification apparatus |
| JPS61181679U (en) * | 1985-05-04 | 1986-11-12 | ||
| CN102649683B (en) * | 2012-03-26 | 2014-08-13 | 山西阳煤丰喜肥业(集团)有限责任公司 | Method for producing methanol by combined gasification of lurgi gasification wastewater through treatment of coal water slurry furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557893A (en) * | 1978-06-29 | 1980-01-21 | Ruhrkohle Ag | Method of taking coal into coal gasification apparatus |
-
1981
- 1981-09-19 JP JP14834081A patent/JPS5849790A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557893A (en) * | 1978-06-29 | 1980-01-21 | Ruhrkohle Ag | Method of taking coal into coal gasification apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5849790A (en) | 1983-03-24 |
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