JPH0127120B2 - - Google Patents
Info
- Publication number
- JPH0127120B2 JPH0127120B2 JP4807880A JP4807880A JPH0127120B2 JP H0127120 B2 JPH0127120 B2 JP H0127120B2 JP 4807880 A JP4807880 A JP 4807880A JP 4807880 A JP4807880 A JP 4807880A JP H0127120 B2 JPH0127120 B2 JP H0127120B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- naphtha
- coal
- water
- specific gravity
- 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
- 239000003921 oil Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000003245 coal Substances 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 4
- 238000004517 catalytic hydrocracking Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 10
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007327 hydrogenolysis reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- -1 methylnathalene Chemical compound 0.000 description 3
- QNLZIZAQLLYXTC-UHFFFAOYSA-N 1,2-dimethylnaphthalene Chemical compound C1=CC=CC2=C(C)C(C)=CC=C21 QNLZIZAQLLYXTC-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003250 coal slurry Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZMXIYERNXPIYFR-UHFFFAOYSA-N 1-ethylnaphthalene Chemical compound C1=CC=C2C(CC)=CC=CC2=C1 ZMXIYERNXPIYFR-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- RJTJVVYSTUQWNI-UHFFFAOYSA-N beta-ethyl naphthalene Natural products C1=CC=CC2=CC(CC)=CC=C21 RJTJVVYSTUQWNI-UHFFFAOYSA-N 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
【発明の詳細な説明】
本発明は石炭を溶剤中で水添分解して得られる
軽質留分の処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating light fractions obtained by hydrogenolyzing coal in a solvent.
石炭類を溶剤に懸濁し、水素加圧下に加熱して
水添分解して石炭を液化することはよく知られて
いる。例えば、図面に示すようにライン１からの
石炭スラリー（石炭の粉末を例えばアンスラセン
油のような石炭系溶剤に分散懸濁させたもの）を
ライン２からの水素ガスの圧力下に加熱炉３に導
入して所定温度に昇温し、反応槽４において水添
分解を行なう。反応槽４を出た反応混合物を冷却
器５において適当な温度に冷却したのち、高圧分
離槽６において水素、メタン、エタン、硫化水素
等からなるドライガスを分離してライン７から取
出す。高圧分離槽６からの反応混合物はついで低
圧分離器８を通過し、水、ベンゼン、トルエン、
キシレン、ナフタリン等からなるガスが分離され
ライン９から取出される。反応混合物は低圧分離
槽８からフラツシユ塔９にフラツシユされ、ナフ
タリン、メチルナタレン、エチルナフタレン、ジ
メチルナフタレン等からなる留分がライン１１か
ら得られライン１４から缶出物が得られる。 It is well known that coal is suspended in a solvent, heated under hydrogen pressure, and hydrogenolyzed to liquefy the coal. For example, as shown in the drawing, coal slurry (coal powder dispersed and suspended in a coal-based solvent such as anthracene oil) from line 1 is fed into heating furnace 3 under the pressure of hydrogen gas from line 2. The temperature is raised to a predetermined temperature, and hydrogen decomposition is performed in the reaction tank 4. After the reaction mixture leaving the reaction tank 4 is cooled to an appropriate temperature in a cooler 5, dry gas consisting of hydrogen, methane, ethane, hydrogen sulfide, etc. is separated in a high-pressure separation tank 6 and taken out through a line 7. The reaction mixture from the high pressure separation vessel 6 then passes through the low pressure separator 8, containing water, benzene, toluene,
A gas consisting of xylene, naphthalene, etc. is separated and taken out through line 9. The reaction mixture is flashed from the low-pressure separation tank 8 to the flash column 9, and a fraction consisting of naphthalene, methylnathalene, ethylnaphthalene, dimethylnaphthalene, etc. is obtained from line 11, and bottoms are obtained from line 14.
ライン９および１１からのガスはコンデンサー
１２にて冷却され軽質留出物レシーバー１３に導
入される。この軽質留出物レシーバー１３中の軽
質留分の凝縮物中には芳香族多環化合物の結晶お
よび水が含有され、しかも凝縮物中の油層の比重
が１に近いために、混在している水は凝縮物の上
部に層を形成したり、下部に層をなしたり、ある
いは液塊状もしくは滴状となつて油層中に存在し
ている。油層中にはまた上記芳香族多環化合物の
結晶が懸濁している。このような状態で存在する
水は、現在最も簡便に行なわれている油層と水層
との比重差による分離法を適用して分離され得な
い。 Gases from lines 9 and 11 are cooled in condenser 12 and introduced into light distillate receiver 13. The light distillate condensate in the light distillate receiver 13 contains aromatic polycyclic compound crystals and water, and since the specific gravity of the oil layer in the condensate is close to 1, they are mixed. Water exists in the oil layer in the form of a layer on top of the condensate, a layer on the bottom, or in the form of liquid masses or drops. Crystals of the aromatic polycyclic compound are also suspended in the oil layer. Water existing in such a state cannot be separated by applying the separation method based on the difference in specific gravity between the oil layer and the water layer, which is currently the simplest method.
本発明は石炭類の溶剤中での水添分解により得
られた軽質油留分から比重差を利用して水を分離
するための新規な方法を提供しようとするもので
ある。 The present invention aims to provide a novel method for separating water from a light oil fraction obtained by hydrogenolysis of coal in a solvent by utilizing the difference in specific gravity.
本発明の石炭水添分解からの軽質留分の処理方
法は石炭を溶剤中で水添分解して得られる固型
物、油および水が混在する軽質留分にナフサを添
加して該固型物および該油をナフサ中に溶解さ
せ、この際遊離された水層を比重差によつて油層
から分離することを特徴するものである。 The method for treating light fractions from coal hydrocracking of the present invention involves adding naphtha to the light fraction obtained by hydrogenolyzing coal in a solvent and containing a mixture of solids, oil, and water. The method is characterized by dissolving the substance and the oil in naphtha, and separating the water layer liberated at this time from the oil layer by the difference in specific gravity.
本発明で処理の対象となる軽質留分は沸点が
210℃未満であり、固型物としてナフタレンなど
の芳香族多環化合物の結晶を含有し、かつ水を５
〜20％（重量）含有している。この軽質留分の比
重は0.98〜1.03である。 The light distillate to be treated in the present invention has a boiling point of
It is less than 210℃, contains crystals of aromatic polycyclic compounds such as naphthalene as a solid substance, and contains 55% of water.
Contains ~20% (by weight). The specific gravity of this light fraction is 0.98-1.03.
本発明において用いられるナフサは沸点210℃
未満の石油系直留ナフサ、石油系改質ナフサ、石
油系分解ナフサがある。 The naphtha used in the present invention has a boiling point of 210℃
There are petroleum-based straight-run naphtha, petroleum-based reformed naphtha, and petroleum-based cracked naphtha.
ナフサの添加量は油相とナフサとの混合物の比
重が0.90以下、特に0.8〜0.85となるような量が好
ましい。あるいは軽質留分１容に対してナフサを
２〜５容混合するのが好ましい。 The amount of naphtha added is preferably such that the specific gravity of the mixture of the oil phase and naphtha is 0.90 or less, particularly 0.8 to 0.85. Alternatively, it is preferable to mix 2 to 5 volumes of naphtha per 1 volume of light distillate.
油、固型物および水が混在する上記軽質留分は
ナフサは混合されて、その中の油分は固型物とと
もにナフサに溶解する。この溶液の比重は上述し
たように0.90以下になるから、静置することによ
つて比重差で二層に分離し、これらの二層はそれ
ぞれ容易に回収される。なお、ナフサ混合に先立
つて、上記軽質留分を静置し、遊離する若干の水
分を分離除去してもよい。 The light fraction containing oil, solids, and water is mixed with naphtha, and the oil therein is dissolved into the naphtha together with the solids. As mentioned above, the specific gravity of this solution is 0.90 or less, so by allowing it to stand still, it will separate into two layers due to the difference in specific gravity, and each of these two layers can be easily recovered. Note that, prior to mixing the naphtha, the above-mentioned light fraction may be allowed to stand and some of the released water may be separated and removed.
本発明によれば、従来水との分離が困難であつ
た軽質留分を容易に処理することができる。ま
た、軽質留分中の固型物が機器、配管などを閉塞
したり貯槽などで沈積したりして種々のトラブル
を起していたが、本発明によればこれらのトラブ
ルは解消された。さらに本発明の効果の最大のも
のは、上記軽質留分と混合されたナフサのオクタ
ン価が上昇することである。従つて、軽質留分を
水から分離するために混合され、その油分および
固型物を溶解したナフサは内燃機関用の燃料ない
しはその燃料用の原料として用いることができ
る。 According to the present invention, light fractions, which have conventionally been difficult to separate from water, can be easily treated. In addition, the solid matter in the light distillate has caused various troubles such as clogging equipment, pipes, etc., or settling in storage tanks, etc. However, according to the present invention, these troubles have been solved. Furthermore, the greatest effect of the present invention is that the octane number of the naphtha mixed with the light fraction increases. Therefore, naphtha, which is mixed to separate light fractions from water and has its oil and solids dissolved therein, can be used as a fuel for internal combustion engines or as a raw material for such fuels.
以下に実施例を示して本発明をさらに具体的に
説明する。 EXAMPLES The present invention will be explained in more detail with reference to Examples below.
実施例
図面に示したプロセスによつて三池瀝青炭をア
ンスラセン油に30％（重量）となるように分散懸
濁した。得られたスラリーに水素を石炭の３％
（重量）となるように添加し、加熱炉３で加熱し、
反応槽４中で420℃、100Kg／cm2Ｇにおいて水添分
解を行なつた。Example Miike bituminous coal was dispersed and suspended in anthracene oil at a concentration of 30% (by weight) according to the process shown in the drawings. Add hydrogen to the resulting slurry at 3% of the coal content.
(weight), heated in heating furnace 3,
Hydrogenolysis was carried out in reaction tank 4 at 420° C. and 100 Kg/cm 2 G.
反応混合物を90Kg／cm2Ｇ、350℃の高圧分離層
６、40Kg／cm2Ｇ、334℃の低圧分離槽８を通過さ
せてガスを分離し、ついで低圧分離槽８からの液
を0.2Kg／cm2Ｇで操作されるフラツシユ塔にフラ
ツシユし缶出物をガス（軽質留分）から分離し
た。低圧分離槽並びにフラツシユ塔で分離された
ガスをそれぞれ37℃に冷却して凝縮物を得た。こ
の凝縮物を良く撹拌混合してサンプリングし見掛
けの比重を測定したところ1.008であつた。この
液は水分と白色の析出物が多量に存在しスラリー
状を呈していた。 The reaction mixture was passed through a high-pressure separation layer 6 at 90Kg/cm 2 G and 350°C, and a low-pressure separation tank 8 at 40Kg/cm 2 G and 334°C to separate the gas, and then the liquid from the low-pressure separation tank 8 was separated by 0.2Kg. The bottoms were separated from the gas (light fraction) by flashing in a flashing column operated at 1/cm 2 G. The gases separated in the low-pressure separation tank and the flash tower were cooled to 37°C to obtain a condensate. This condensate was thoroughly stirred and mixed, sampled, and the apparent specific gravity was determined to be 1.008. This liquid contained a large amount of water and white precipitates, and was in the form of a slurry.
この比重1.008の部分１容に対してクエート原
油の軽質ナフサ留分（比重0.6522、ASTM10％
点33.5℃、90％点86℃、リサーチ法オクタン価
68.8）４容を添加し、よく振盪して静置したとこ
ろ、水層と油層との２層に明確に分離することが
できた。この油層の比重は0.695でオクタン価は
72.2を示した。 For 1 volume of this portion with a specific gravity of 1.008, the light naphtha fraction of Kuwaiti crude oil (specific gravity 0.6522, ASTM 10%)
Point 33.5℃, 90% point 86℃, Research method octane number
When 4 volumes of 68.8) were added, shaken well and allowed to stand, it was possible to clearly separate into two layers, an aqueous layer and an oil layer. The specific gravity of this oil layer is 0.695 and the octane number is
It showed 72.2.
上記の結果から明らかなように、石炭の水添分
解により得られた軽質留分はガソリンのオクタン
価の向上剤として利用しうることが明らかであ
る。 As is clear from the above results, it is clear that the light fraction obtained by hydrocracking coal can be used as an octane number improver for gasoline.
図面は石炭の溶剤中における水添分解プロセス
の一例を示すフローシートである。
３……加熱炉、４……反応槽、６……高圧分離
槽、８……低圧分離槽、１０……フラツシユ塔、
１……石炭スラリー、２……水素、９，１１……
軽質留分、１４……缶出液、１５……ナフサ注入
ライン。
The drawing is a flow sheet showing an example of the hydrogenolysis process of coal in a solvent. 3...Heating furnace, 4...Reaction tank, 6...High pressure separation tank, 8...Low pressure separation tank, 10...Flush tower,
1...Coal slurry, 2...Hydrogen, 9,11...
Light distillate, 14...bottoms, 15...naphtha injection line.
Claims (1)
物、油および水が混在する軽質留分に石油系ナフ
サを添加して該固型物および該油を該ナフサ中に
溶解させ、この際遊離された水層を比重差によつ
て油層から分離することを特徴とする石炭水添分
解からの軽質留分の処理方法。1. Adding petroleum naphtha to a light fraction obtained by hydrogenolyzing coal in a solvent and containing a mixture of solids, oil and water to dissolve the solids and oil in the naphtha, A method for treating light fractions from coal hydrocracking, characterized in that the water layer liberated at this time is separated from the oil layer based on the difference in specific gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4807880A JPS56145980A (en) | 1980-04-14 | 1980-04-14 | Treatment of light fraction obtained by hydrocracking of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4807880A JPS56145980A (en) | 1980-04-14 | 1980-04-14 | Treatment of light fraction obtained by hydrocracking of coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56145980A JPS56145980A (en) | 1981-11-13 |
| JPH0127120B2 true JPH0127120B2 (en) | 1989-05-26 |
Family
ID=12793297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4807880A Granted JPS56145980A (en) | 1980-04-14 | 1980-04-14 | Treatment of light fraction obtained by hydrocracking of coal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56145980A (en) |
-
1980
- 1980-04-14 JP JP4807880A patent/JPS56145980A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56145980A (en) | 1981-11-13 |
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