JPS63382A - Preparation of coal liquefaction slurry - Google Patents
Preparation of coal liquefaction slurryInfo
- Publication number
- JPS63382A JPS63382A JP14271586A JP14271586A JPS63382A JP S63382 A JPS63382 A JP S63382A JP 14271586 A JP14271586 A JP 14271586A JP 14271586 A JP14271586 A JP 14271586A JP S63382 A JPS63382 A JP S63382A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- storage tank
- coal
- gas
- circulation
- 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
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 81
- 239000003245 coal Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title description 5
- 238000003860 storage Methods 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 20
- 239000003570 air Substances 0.000 claims 1
- 238000005191 phase separation Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000003250 coal slurry Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- -1 (JP-A-53-142402) Chemical class 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、連続式石炭液化装置の安定運転を達成するた
めのスラリー調製方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a slurry preparation method for achieving stable operation of a continuous coal liquefaction plant.
（従来技術とその問題点）
石炭の液化は、固体石炭を軽質油、重質油等の液状物に
転化する技術であり、反応の原理は従来から既に知られ
ており、通常は高温高圧下で石炭に水素を添加して液化
する方法が採られる。また、固体の石炭が常温液状油に
まで転化する速度は比較的遅く、一般には１時間前後の
反応時間が必要であるが、この反応を促進もしくは良質
の液化油を得る目的で反応雰囲気下に触媒を共存させる
こともまた一般的である。(Prior art and its problems) Coal liquefaction is a technology that converts solid coal into liquid substances such as light oil and heavy oil.The principle of the reaction has been known for a long time, and it is usually performed under high temperature and high pressure. The method used is to add hydrogen to coal and liquefy it. In addition, the rate at which solid coal is converted to liquid oil at room temperature is relatively slow, and generally a reaction time of around 1 hour is required. It is also common to have a catalyst present.
このような石炭液化反応を連続装置で実施するためには
、石炭の如き固体粉を連続的に高圧系内に圧送する必要
があるが、固体粉単独を１００気圧以上の高圧反応域に
連続安定的に流送することは、現状の技術ではほとんど
不可能である。そこで、固体石炭を高圧反応域に圧送す
るために、原料石炭はあらかじめ微粉砕され、これと液
体の溶剤とが混合されて疑似液体状のスラリーが形成さ
れることになる。更に、触媒を使用する場合には、触媒
もまたスラリー中に添加されるのが一般的である。この
ような石炭スラリーは特別の配慮が為されない場合には
、固液二相分離という不都合を非常に生じ易い、と言う
のは、スラリーを構成する各成分の比重は、溶剤が約１
．０、石炭が１．５そして触媒にいたっては２以上と大
幅に異るため、この比重差によってほぼ不可避的に相分
離を生ずることになる。In order to carry out such a coal liquefaction reaction in a continuous device, it is necessary to continuously pump solid powder such as coal into a high-pressure system. With current technology, it is almost impossible to transport such substances. Therefore, in order to pump the solid coal to the high-pressure reaction zone, the raw coal is pulverized in advance and mixed with a liquid solvent to form a quasi-liquid slurry. Additionally, if a catalyst is used, it is also common to add it to the slurry. Unless special considerations are taken, such coal slurries are very susceptible to solid-liquid two-phase separation, since the specific gravity of each component making up the slurry is approximately 1
．． 0 for coal, 1.5 for coal, and 2 or more for catalysts, so phase separation will almost inevitably occur due to this difference in specific gravity.
一方、石炭中には、木質的に無機質を主体とする灰分が
混在しており、特に液化用に供される石炭の如き比較的
低質炭中には、一般に１０％程度の灰分が含まれる。勿
論、この灰分中には鉄等の元素も含まれているために、
灰分が石炭液化反応に対して触媒作用を示すことも十分
予想されることではあるが、しかし灰分中の例えばカル
シウム等は、液化反応装置或いは配管部等において塩の
形で析出し、配管付着或いは塊状化して沈積する等の装
置安定運転に対して甚だ不都合な現象を引き起こすこと
も、当業者間においては一般的に認められた事実である
。On the other hand, coal contains ash mainly composed of inorganic wood, and relatively low quality coal such as coal used for liquefaction generally contains about 10% ash. Of course, this ash also contains elements such as iron, so
It is fully expected that ash will exhibit a catalytic effect on the coal liquefaction reaction, but calcium, etc. in the ash may precipitate in the form of salts in the liquefaction reactor or piping, and cause damage to the piping or other components. It is also a fact generally recognized by those skilled in the art that it causes phenomena such as agglomeration and sedimentation, which are extremely detrimental to the stable operation of the equipment.
即ち、石炭スラリーは特別な配慮を施さない場合には、
上述のような装置安定運転に重大な影響を及ぼす現象を
おこす可能性があるため、従来よりこれを回避するため
の特別の工夫が為されてきた０例えば、スラリー中に予
め鉄、コバルト、ニッケル等の化合物又は塩類を添加す
る方法（特開昭５３−１４２４０２号）、或いは石炭を
予め酸化硫黄及び酸化剤で処理する方法（特開昭５５−
１２５１９０号）があるが、これらの方法の目的は、炭
酸カルシウムのような沈積、付着し易いカルシウム塩の
生成を抑止するために、カルシウムを予め付着しにくい
形の塩に変換することにあった。勿論、このような方法
によってもカルシウムに起因する不都合を抑制出来る可
能性はあるが、これらの方法は相当煩雑であり、プロセ
スの操作性もしくは経済性の面からも好ましい方法とは
言い難い点があった。That is, unless special consideration is given to coal slurry,
Since the above-mentioned phenomenon may seriously affect the stable operation of the equipment, special measures have been taken to avoid this phenomenon. A method of adding compounds or salts such as (JP-A-53-142402), or a method of pre-treating coal with sulfur oxide and an oxidizing agent (JP-A-55-1999)
125190), but the purpose of these methods was to convert calcium in advance into a form of salt that is difficult to adhere to, in order to prevent the formation of calcium salts that tend to deposit and adhere, such as calcium carbonate. . Of course, there is a possibility that the disadvantages caused by calcium can be suppressed by such methods, but these methods are quite complicated and cannot be said to be preferable from the viewpoint of process operability or economic efficiency. there were.
（発明の目的）
本発明は、上述の問題点を改善したもので、比較的簡単
な手法によって石炭液化装置の安定運転を保証するスラ
リー調製方法を提供するものである。(Object of the Invention) The present invention improves the above-mentioned problems and provides a slurry preparation method that guarantees stable operation of a coal liquefaction device using a relatively simple method.
（発明の構成）
本発明の石炭液化用スラリーの調製方法は、石炭、スラ
リー化溶剤及び粉末触媒よりなるスラリーを混合貯蔵す
る貯槽上部にガス入口とガス出口を設けて、空気あるい
は不活性ガスを貯槽上部気相部を流通させると共に、該
貯槽から循環ポンプによって１時間当り最大スラリー貯
蔵量以上の容量のスラリーを、循環配管内に０．１５ｍ
／秒以上の流速で循環させることを特徴とする。(Structure of the Invention) The method for preparing slurry for coal liquefaction of the present invention includes providing a gas inlet and a gas outlet in the upper part of a storage tank in which a slurry consisting of coal, a slurrying solvent, and a powdered catalyst is mixed and stored. While circulating the gas phase in the upper part of the storage tank, a circulation pump pumps slurry in an amount equal to or greater than the maximum slurry storage amount per hour from the storage tank into a circulation pipe of 0.15 m.
It is characterized by circulating at a flow rate of 1/sec or more.
（実施態様及び作用）
本発明では、先ず、石炭、スラリー化溶剤及び粉末触媒
を混合してスラリーを調製し、スラリー貯槽に供給する
。スラリーの調製方法としては。(Embodiments and Effects) In the present invention, first, coal, a slurrying solvent, and a powdered catalyst are mixed to prepare a slurry, and the slurry is supplied to a slurry storage tank. As for the slurry preparation method.
粗粒石炭の粉砕とスラリー化を同時に行なう湿式粉砕法
と粗粒石炭を乾式粉砕した後に溶剤と混合１６でスラリ
ーイに十スナ汁）−バ訊スｈ（十品叩でＩ斗どちらを用
いても差し支えない。このようにして調製されたスラリ
ーは、これを静置した場合には、一般には直ちにスラリ
ー中の成分の比重差のために固液二相分離が生じ、スラ
リーの均一化を阻害するとともに、反応系へのスラリー
の流送が著しく困難となる。そこで、本発明ではこのよ
うなトラブルを回避するために先ず、スラリーを特定の
条件下で循環させる方法を採る。即ち、スラリー貯槽か
ら循環ポンプによって１時間当り最大スラリー貯蔵量以
上の容量のスラリーを、循環配管内に０．１５ｍ／秒以
上の流速で、かつ望ましくはスラリー温度が８０℃より
高く１５０℃より低い温度に保持されるように循環させ
るものである。本発明者らの検討によれば、１時間当り
のスラリー循環量がスラリー貯槽の最大貯蔵量以下の場
合には、スラリーの沈降性が完全には抑制し難いことが
判明した。また、例え循環量を多くした場合でも、循環
配管内のスラリー流速が遅い場合には配管内にて石炭粉
が沈降する傾向が認められ、これを抑止するためには配
管内のスラリー流速を０．１５ｍ／秒以上とする必要が
認められた。更に、このようなスラリーの親和性の向上
を達成するためには、スラリーの温度を高くした方がそ
の達成時間が短縮されて好ましいことが判明した。尚、
この温度としては、８０℃以上でその効果が顕著となる
が、しかしこれを１５０℃以上とすると循環ポンプの性
能が低下する危険性があるために、これ以上の温度を採
用することは好ましいことではない。A wet pulverization method involves simultaneously pulverizing coarse coal and turning it into a slurry, and a method in which coarse coal is dry pulverized and then mixed with a solvent to make a slurry. If the slurry prepared in this way is allowed to stand still, solid-liquid two-phase separation generally occurs immediately due to the difference in specific gravity of the components in the slurry, which impedes the homogenization of the slurry. At the same time, it becomes extremely difficult to flow the slurry into the reaction system.Therefore, in order to avoid such troubles, the present invention first adopts a method of circulating the slurry under specific conditions. From the circulation pump, a volume of slurry equal to or greater than the maximum slurry storage amount per hour is maintained in the circulation piping at a flow rate of 0.15 m/sec or more, and preferably the slurry temperature is maintained at a temperature higher than 80°C and lower than 150°C. According to the studies of the present inventors, if the slurry circulation amount per hour is less than the maximum storage amount of the slurry storage tank, it is difficult to completely suppress the sedimentation of the slurry. It was also found that even if the circulation rate was increased, if the slurry flow rate in the circulation piping was slow, there was a tendency for coal powder to settle in the piping. It was recognized that it was necessary to increase the flow velocity of the slurry to 0.15 m/sec or more.Furthermore, in order to achieve this improvement in slurry affinity, increasing the temperature of the slurry would shorten the time required to achieve this. It turned out to be preferable.
The effect becomes noticeable at a temperature of 80°C or higher; however, if the temperature is set to 150°C or higher, there is a risk that the performance of the circulation pump will deteriorate, so it is preferable to use a temperature higher than this. isn't it.
一方、本発明者らは、尚初このような検討を実施するに
際し、密閉式のスラリー貯槽を用いたが、或種の石炭を
使用した場合にはスラリー貯槽もしくは循環配管内に球
状粗粒の析出凝固物が沈積し、スラリーの流送を極端に
悪化させる現象が認められた。そこで、この球状析出物
の生成を防止するための種々の検討を実施してみたとこ
ろ、スラリー貯槽にパージガス吹込み入口と排出用出口
を設置し、ここより適当量の空気もしくは不活性ガス等
をスラリー貯槽に流通させる方法によって、塊状析出物
の生成が完全に回避できることが判明した。On the other hand, the present inventors used a closed slurry storage tank when conducting such a study for the first time, but when using a certain type of coal, spherical coarse particles may be placed in the slurry storage tank or circulation pipe. A phenomenon was observed in which precipitated coagulum deposited and extremely deteriorated the flow of the slurry. Therefore, we conducted various studies to prevent the formation of spherical precipitates, and found that we installed a purge gas inlet and a discharge outlet in the slurry storage tank, and introduced an appropriate amount of air or inert gas from there. It has been found that the method of flow through the slurry storage tank completely avoids the formation of lumpy precipitates.
何故、このような効果が生ずるのがその理由は明白では
ないが、貯槽を開放系としたことにより、スラリー中の
水分或いは軽質分等が適当量蒸発して系外に飛散するこ
とにより、塊状物の析出生成が抑止されているものと思
われる。It is not clear why this effect occurs, but by making the storage tank an open system, an appropriate amount of water or light components in the slurry evaporates and scatters outside the system, causing lumps to form. It seems that the precipitation and formation of substances is suppressed.
以下、本発明を実施例によって更に詳しく説明する。Hereinafter, the present invention will be explained in more detail with reference to Examples.
（実施例１）
・ 粉砕後の性状が第１表の値を示す石炭を、予め乾式
粉砕によって全量を１００メツシユ以下に粉砕した。こ
の石炭１００重量部に対し、第２表に性状を示すスラリ
ー化溶剤を１５０重量部、更に第３表に性状を示す鉄系
触媒２重量部及び単体硫黄１重量部を、第１図に示すス
ラリー貯槽（Ａ）（最大貯蔵量１００ｆＬ）にスラリー
供給口（１）カラ全ｆｆｉで１０１．２重量部仕込み、
スラリー温度が１０５℃となるよにヒータ（Ｄ）を設定
しながら、循環ポンプ（Ｂ）によってスラリーの循環運
転を行なった。尚、このときのスラリー循環量は８００
１／ｈ、また配管（４）内のスラリー流速は０．３ｍ／
秒であった。更に、このとき、第１図中のガス入口（２
）及び出口（３）には盲フランジを取り付けてスラリー
貯槽を密閉系としておいた。Ｃはかく拌機、５は反応系
へのスラリー供給ラインである。循環開始から約２時間
でスラリー温度は１０５℃に達した。その後２２時間循
環を続行後運転を停止した。(Example 1) - Coal whose properties after pulverization had the values shown in Table 1 was previously pulverized by dry pulverization to a total amount of 100 mesh or less. To 100 parts by weight of this coal, 150 parts by weight of a slurrying solvent whose properties are shown in Table 2, and 2 parts by weight of an iron-based catalyst whose properties are shown in Table 3 and 1 part by weight of elemental sulfur are shown in Figure 1. Fill the slurry storage tank (A) (maximum storage capacity 100 fL) with 101.2 parts by weight of slurry supply port (1) with all ffi.
The slurry was circulated by the circulation pump (B) while the heater (D) was set so that the slurry temperature was 105°C. In addition, the slurry circulation amount at this time was 800
1/h, and the slurry flow velocity in pipe (4) is 0.3 m/h.
It was seconds. Furthermore, at this time, the gas inlet (2
) and the outlet (3) were fitted with blind flanges to make the slurry storage tank a closed system. C is a stirrer, and 5 is a slurry supply line to the reaction system. The slurry temperature reached 105° C. about 2 hours after the start of circulation. After that, circulation continued for 22 hours, and then the operation was stopped.
運転停止後、スラリー貯槽及び配管内の内容物全量を取
り出し、これを８メツシユの篩を用いて濾過したところ
、約１．２ｋｇの篩上残留物が認められた。これら残留
物の形状はほぼ全量が球状であり、またその構成成分と
しては無機質が高儂度で存在することが認められた。After the operation was stopped, the entire contents of the slurry storage tank and piping were taken out and filtered using an 8-mesh sieve, and approximately 1.2 kg of residue on the sieve was observed. Almost all of these residues were spherical in shape, and it was found that a high degree of inorganic matter was present as a constituent component.
（実施例２）
ガス入口（２）及び出口（３）の盲フランジを外し、ガ
ス入口より窒素を３又／分で流通させた以外は、実施例
１と同様の装置及び手法でスラリーの循環運転を実施し
た。(Example 2) Slurry was circulated using the same equipment and method as in Example 1, except that the blind flanges at the gas inlet (2) and outlet (3) were removed and nitrogen was passed through the gas inlet at a rate of 3 strokes/min. The operation was carried out.
運転後内容物全量を濾過したところ、８メツシユ篩上残
留物は認められず１球状析出物が生成していないことが
分った。After the operation, the entire contents were filtered, and no residue was observed on the 8-mesh sieve, indicating that no spherical precipitates were formed.
（実施例３）
スラリー循環量を種々変化させた以外は実施例２と同様
の装置及び手法を用いてスラリーの循環運転を実施した
。(Example 3) Slurry circulation operation was carried out using the same apparatus and method as in Example 2, except that the slurry circulation amount was varied.
運転後、スラリーの一部をサンプリングして１００℃に
おける粘度を測定したところ、第２図に示すように、ス
ラリー循環量が８０ｕ／ｈｒ以下では粘度が低く、石炭
スラリーの親和性が良好でないことが判明した。After operation, a part of the slurry was sampled and its viscosity at 100°C was measured. As shown in Figure 2, the viscosity was low when the slurry circulation rate was less than 80 u/hr, and the affinity of the coal slurry was poor. There was found.
（実施例４）
スラリー循環用配管の径を変えて、スラリーの流速を種
々変化させた以外は実施例２と同様の装置及び手法を用
いてスラリーのＷＪ環運転を実施した。(Example 4) Slurry WJ ring operation was carried out using the same equipment and method as in Example 2, except that the diameter of the slurry circulation piping was changed and the flow rate of the slurry was variously varied.
運転後、実施例３と同様に粘度を測定したところ、第３
図に示すように、０．１５ｍ／秒以下ではスラリー性状
が劣悪であった。After the operation, the viscosity was measured in the same manner as in Example 3.
As shown in the figure, the slurry properties were poor at 0.15 m/sec or less.
（実施例５）
スラリー温度を種々変化させた以外は実施例２と同様の
装置及び手法を用いてスラリーの循環運転を実施した。(Example 5) Slurry circulation operation was carried out using the same apparatus and method as in Example 2, except that the slurry temperature was varied.
この際、運転中の任意の時間にスラリー貯槽内のスラリ
ーをサンプリングして粘度を測定したところ、第４図に
示すように、温度が高い程、特に８０℃以上の温度にお
いて、スラリーの性状改善が短時間で達成されることが
判明した。At this time, we sampled the slurry in the slurry storage tank at any time during operation and measured its viscosity. As shown in Figure 4, the properties of the slurry improved as the temperature increased, especially at temperatures above 80°C. was found to be achieved in a short period of time.
（発明の効果）
本発明によれば、比較的簡単な手法によって、従来認め
られたスラリーの相分離、塊状析出物の沈着等の装置ト
ラブルを防止することが可能となり、その効果は顕著な
ものがある。(Effects of the Invention) According to the present invention, it is possible to prevent equipment troubles such as phase separation of slurry and deposition of lumpy precipitates, which have been observed in the past, by a relatively simple method, and the effects are remarkable. There is.
第１図は、本発明を実施するためのスラリー調製装置の
１例を示す、第２図は実施例３におけるスラリーの循環
量と粘度の関係を示すグラフ、第３図は、実施例４にお
けるスラリー流速と粘度の関係を示すグラフ、第４図は
実施例５におけるスラリー循環時間と粘度の関係を示す
グラフである。
２、ガス入口 Ｂ、ポンプ
３、ガス出口 Ｄ、ヒーター
Ａ、貯槽FIG. 1 shows an example of a slurry preparation apparatus for carrying out the present invention, FIG. 2 is a graph showing the relationship between slurry circulation amount and viscosity in Example 3, and FIG. 3 is a graph showing the relationship between slurry circulation amount and viscosity in Example 4. A graph showing the relationship between slurry flow rate and viscosity. FIG. 4 is a graph showing the relationship between slurry circulation time and viscosity in Example 5. 2, Gas inlet B, Pump 3, Gas outlet D, Heater A, Storage tank
Claims (2)
リーを混合貯蔵する貯槽上部にガス入口とガス出口を設
けて、空気あるいは不活性ガスを貯槽上部気相部を流通
させると共に、該貯槽から循環ポンプによって１時間当
り最大スラリー貯蔵量以上の容量のスラリーを、循環配
管内に０．１５ｍ／秒以上の流速で循環させることを特
徴とする石炭液化用スラリーの調製方法。(1) A gas inlet and a gas outlet are provided in the upper part of the storage tank that mixes and stores the slurry consisting of coal, slurry solvent, and powdered catalyst, and air or inert gas is circulated through the upper gas phase of the storage tank and circulated from the storage tank. 1. A method for preparing slurry for coal liquefaction, which comprises circulating slurry in a volume equal to or greater than the maximum slurry storage amount per hour through a circulation pipe at a flow rate of 0.15 m/sec or greater using a pump.
求の範囲第（１）項記載の方法。(2) The method according to claim (1), wherein the slurry temperature is maintained at 80 to 150°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61142715A JPH0737620B2 (en) | 1986-06-20 | 1986-06-20 | Method for preparing slurry for coal liquefaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61142715A JPH0737620B2 (en) | 1986-06-20 | 1986-06-20 | Method for preparing slurry for coal liquefaction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63382A true JPS63382A (en) | 1988-01-05 |
| JPH0737620B2 JPH0737620B2 (en) | 1995-04-26 |
Family
ID=15321891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61142715A Expired - Fee Related JPH0737620B2 (en) | 1986-06-20 | 1986-06-20 | Method for preparing slurry for coal liquefaction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0737620B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017006857A (en) * | 2015-06-22 | 2017-01-12 | 花王株式会社 | Method and device for producing slurry composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578283A (en) * | 1980-06-17 | 1982-01-16 | Electric Power Dev Co Ltd | Treatment of mixing mill gas in coal liquefaction plant |
| JPS6044584A (en) * | 1983-08-22 | 1985-03-09 | Mitsubishi Heavy Ind Ltd | Method for preventing blocking of preheating pipe of coal liquefaction reactor |
-
1986
- 1986-06-20 JP JP61142715A patent/JPH0737620B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578283A (en) * | 1980-06-17 | 1982-01-16 | Electric Power Dev Co Ltd | Treatment of mixing mill gas in coal liquefaction plant |
| JPS6044584A (en) * | 1983-08-22 | 1985-03-09 | Mitsubishi Heavy Ind Ltd | Method for preventing blocking of preheating pipe of coal liquefaction reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017006857A (en) * | 2015-06-22 | 2017-01-12 | 花王株式会社 | Method and device for producing slurry composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0737620B2 (en) | 1995-04-26 |
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