JPH06104836B2 - Oil fraction collection method - Google Patents
Oil fraction collection methodInfo
- Publication number
- JPH06104836B2 JPH06104836B2 JP61254679A JP25467986A JPH06104836B2 JP H06104836 B2 JPH06104836 B2 JP H06104836B2 JP 61254679 A JP61254679 A JP 61254679A JP 25467986 A JP25467986 A JP 25467986A JP H06104836 B2 JPH06104836 B2 JP H06104836B2
- Authority
- JP
- Japan
- Prior art keywords
- fraction
- boiling point
- range
- kerosene
- boiling
- 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
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- 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〕 本発明は石油留分の効率的な回収方法に関し、詳しくは
高価値留分の回収率を向上させる方法に関する。The present invention relates to an efficient method for recovering petroleum fractions, and more particularly to a method for improving the recovery rate of high-value fractions.
原油は通常、常圧蒸留により各留分に分離したのち、特
定留分についてはさらに分留して各種性状の製品を得て
いる。この場合、従来は各留分ごとに分留が行われ、異
なる留分を混合して分留することは試みられていなかっ
た。そのため、高価値留分の回収には限界があり、その
改善が望まれていた。Crude oil is usually separated into respective fractions by atmospheric distillation, and then specific fractions are further fractionated to obtain products with various properties. In this case, conventionally, fractionation was performed for each fraction, and no attempt was made to mix and fractionate different fractions. Therefore, there is a limit to the recovery of high-value fractions, and improvement thereof has been desired.
本発明者は、元来石油留分はその沸点が単一温度を示す
ものではなく、連続沸点範囲を持つものであることに着
目し、特定留分の分留を行なう際に、共通の沸点範囲の
部分を含む２以上の留分あるいは共通の沸点範囲の部分
を含まないが、近接する沸点範囲の部分を含む２以上の
留分を混合して用いることにより高価値留分の回収率を
向上させることが出来ることを見出し、本発明を完成す
るに至った。The present inventor originally noticed that the boiling point of a petroleum fraction does not indicate a single temperature but has a continuous boiling point range, and when carrying out fractional distillation of a specific fraction, a common boiling point The recovery of high-value fractions can be improved by mixing two or more fractions containing a range portion or a common boiling range portion, but by mixing two or more fractions containing adjacent boiling range portions. They have found that they can be improved, and completed the present invention.
すなわち本発明は、沸点範囲150〜370℃の石油留分のう
ち、灯油，軽質軽油および重質軽油から選ばれる少なく
とも１種の石油留分Ａに、該留分よりも平均沸点が低
く、かつ該留分の沸点範囲と共通の沸点範囲部分を含む
か、近接する沸点範囲部分を含む石油留分Ｂを混合し、
混合物を留分Ａの分留装置に通油して分留を行うことを
特徴とする石油留分の回収方法である。That is, according to the present invention, among petroleum fractions having a boiling point range of 150 to 370 ° C., at least one petroleum fraction A selected from kerosene, light gas oil and heavy gas oil has a lower average boiling point than that fraction, and A petroleum fraction B containing a boiling point range portion common to the boiling point range of the distillate or admixing adjacent boiling point range portions,
A method for recovering petroleum fractions is characterized in that the mixture is passed through a fractionating device for fraction A to carry out fractional distillation.
原油蒸留を、たとえば常圧蒸留装置を用いて行った場
合、該装置から抜出される石油留分としてナフサ（沸点
範囲約40〜180℃），灯油（沸点範囲約150〜270℃），
軽質軽油（沸点範囲約200〜370℃），重質軽油（沸点範
囲約370℃以上）および残渣油がある。When crude oil distillation is performed using, for example, an atmospheric distillation apparatus, naphtha (boiling point range: about 40 to 180 ° C.), kerosene (boiling point range: about 150 to 270 ° C.), is used as a petroleum fraction extracted from the apparatus.
There are light gas oil (boiling point range about 200-370 ℃), heavy gas oil (boiling point range about 370 ℃ or higher) and residual oil.
このように、蒸留装置から抜出される石油留分の沸点範
囲の一部分は他の石油留分の沸点範囲と共通するか、あ
るいは共通の沸点範囲の部分を含まないが、近接する沸
点範囲の部分を含むことがある。したがって、特定の高
価値留分は２つの留分にまたがって含まれることがあ
る。たとえば、灯油留分は上記灯油中に主として含まれ
ているほかナフサおよび軽質軽油中にも少量含まれてい
る。Thus, a part of the boiling range of the petroleum fraction withdrawn from the distillation apparatus is common with the boiling range of other petroleum fractions, or does not contain a common boiling range part, but a part of the adjacent boiling range. May be included. Therefore, a particular high value fraction may be contained over two fractions. For example, the kerosene fraction is mainly contained in the above kerosene, and is also contained in a small amount in naphtha and light gas oil.
しかし、従来はナフサ等に含まれる灯油留分は量的に少
ないことから蒸留によって回収することが出来なかっ
た。However, conventionally, the kerosene fraction contained in naphtha and the like could not be recovered by distillation because of its small amount.
そこで、本発明では従来法では回収、利用されていなか
った灯油留分等の高価値留分を回収して有効に利用する
ものである。Therefore, in the present invention, a high-value fraction such as a kerosene fraction, which has not been collected and used by the conventional method, is collected and effectively used.
原油蒸留装置から抜出された、沸点範囲150〜370℃を持
つ石油留分Ａに該留分よりも平均沸点が低く、かつ該留
分の沸点範囲と共通の沸点範囲部分を50％未満の割合で
含む留分Ｂを混合するにあたり、留分Ｂの配合量は容量
比で10％以下、好ましくは３〜７％とすべきである。留
分Ｂの配合量が10％を越えると、目的とする石油留分の
性状が悪くなる上に、処理能力が低下する。留分Ｂの配
合量が10％以下であれば、混合物を留分Ａ用の分留装置
に通油しても留分Ａのみを通油する場合に比べて運転上
大きな変更や難点はなく、留分Ｂから留分Ａに含まれる
部分と共通の部分を回収することができる。The petroleum fraction A having a boiling range of 150 to 370 ° C. extracted from the crude oil distillation apparatus has an average boiling point lower than that of the petroleum fraction, and the boiling point range common to the boiling point of the fraction is less than 50%. When mixing the fraction B contained in a ratio, the blending amount of the fraction B should be 10% or less by volume, preferably 3 to 7%. If the blending amount of the fraction B exceeds 10%, the properties of the intended petroleum fraction are deteriorated and the treatment capacity is lowered. If the blending amount of the fraction B is 10% or less, even if the mixture is passed through the fractionating device for the fraction A, there is no significant change or difficulty in operation as compared with the case where only the fraction A is passed. , The fraction common to the fraction contained in the fraction A can be recovered from the fraction B.
なお、留分Ａに留分Ｂを混合するにあたり、留分Ｂが例
えば硫黄分を含んでいるときは、混合物を脱硫装置に通
油して脱留処理を行ってから分留装置に送ることが必要
である。When mixing the fraction B with the fraction A, when the fraction B contains, for example, a sulfur content, the mixture is passed through a desulfurization device to be subjected to a dedistillation treatment and then sent to the fractionation device. is necessary.
ここで、留分Ａと留分Ｂの混合について具体例を示す
と、留分Ａと沸点範囲約150〜270℃になるように常圧蒸
留装置において抜出された灯油留分があり、これに配合
する留分Ｂとして沸点範囲約40〜180℃になるように常
圧蒸留装置において抜出されたナフサ留分がある。この
ナフサ留分のうちの重質留分側に灯油留分に相当する部
分が存在する。Here, as a specific example of mixing the fraction A and the fraction B, there is a kerosene fraction extracted in the atmospheric distillation apparatus so as to have a boiling point range of about 150 to 270 ° C. with the fraction A. The naphtha fraction extracted in the atmospheric distillation apparatus so as to have a boiling point range of about 40 to 180 ° C. is a fraction B to be blended with. A portion corresponding to the kerosene fraction exists on the heavy fraction side of the naphtha fraction.
この留分Ａと留分Ｂを上記の如くして混合して灯油用の
脱硫装置および分留装置に通油することにより、ナフサ
留分中の灯油留分に含まれる部分を灯油留分中の該当部
分と共に回収することができる。By mixing the fraction A and the fraction B as described above and passing them through a desulfurization device and a fractionation device for kerosene, a portion of the naphtha fraction contained in the kerosene fraction is converted into the kerosene fraction. Can be collected together with the relevant part of.
次に、本発明を実施例により詳しく説明する。 Next, the present invention will be described in detail with reference to Examples.
実施例１ 留分Ａの灯油留分（沸点範囲155〜275℃）と留分Ｂの分
解ナフサ（沸点範囲45〜175℃）を配合比率（留分Ｂ量
／留分Ａ量）５容量％の割合で混合した。Example 1 5% by volume of a kerosene fraction of boiling point A (boiling point range 155 to 275 ° C.) and cracked naphtha of boiling point B (boiling point range 45 to 175 ° C.) (fraction B amount / fraction A amount) Were mixed in the ratio.
混合油を灯油留分の分留装置に通油して分留を行い、留
分Ｂから留分Ａの沸点範囲の部分を回収率（回収した留
分Ａ量／配合した留分Ｂ量）46.1％にて回収した。すな
わち、留分Ｂの分解ナフサに含まれる灯油留分（46.1
％）を留分Ａと共に灯油留分として回収することができ
た。Fractional distillation is carried out by passing the mixed oil through a kerosene fraction fractionator, and the fraction in the boiling range of fraction B to fraction A (recovered fraction A amount / blended fraction B amount) is recovered. Recovered at 46.1%. That is, the kerosene fraction contained in the cracked naphtha of the fraction B (46.1
%) Could be recovered together with the fraction A as a kerosene fraction.
実施例２ 留分Ａとして軽質軽油留分（沸点範囲190〜360℃）を用
い、留分Ｂとして分解ナフサ沸点範囲45〜180℃）を用
い、配合比率５容量％にて混合した。Example 2 A light gas oil fraction (boiling point range 190 to 360 ° C.) was used as the fraction A, and cracked naphtha boiling point range 45 to 180 ° C. was used as the fraction B, and mixed at a mixing ratio of 5% by volume.
混合油を分留することによって留分Ｂから留分Ａの沸点
範囲の部分を回収率18.5％にて回収することができた。By fractionating the mixed oil, it was possible to recover a portion of the boiling range of fraction A from fraction B at a recovery rate of 18.5%.
実施例３ 留分Ａとして灯油留分（沸点範囲155〜250℃）を用い、
留分Ｂとして脱硫重質ナフサ（沸点範囲80〜150℃）を
用い、配合比率７容量％にて混合した。Example 3 A kerosene fraction (boiling range 155 to 250 ° C.) was used as the fraction A,
As the fraction B, desulfurized heavy naphtha (boiling point range 80 to 150 ° C.) was used and mixed at a compounding ratio of 7% by volume.
混合油を分留することによって留分Ｂから留分Ａの沸点
範囲の部分を回収率19.1％にて回収することができた。By fractionating the mixed oil, it was possible to recover the fraction in the boiling range of the fraction A from the fraction B at a recovery rate of 19.1%.
本発明によれば、共通の沸点範囲の部分を含む２以上の
留分あるいは共通の沸点範囲の部分を含まないが、近接
する沸点範囲の部分を含む２以上の留分を混合し、混合
油を分留することによって灯油留分のような高価値留分
の回収率を向上させることができる。According to the present invention, two or more fractions containing a common boiling range portion or two or more fractions not containing a common boiling range portion but having adjacent boiling range portions are mixed to form a mixed oil. It is possible to improve the recovery rate of high-value fractions such as kerosene fractions.
しかも、混合油を用いることによる運転上の支障はほと
んどない。それ故、本発明は石油精製の分野において実
用性の高いものである。Moreover, the use of the mixed oil causes almost no trouble in operation. Therefore, the present invention is highly practical in the field of oil refining.
Claims (3)
油，軽質軽油および重質軽油から選ばれる少なくとも１
種の石油留分Ａに、該留分よりも平均沸点が低く、かつ
該留分の沸点範囲と共通の沸点範囲部分を含むか、近接
する沸点範囲部分を含む石油留分Ｂを混合し、混合物を
留分Ａの分留装置に通油して分留を行うことを特徴とす
る石油留分の回収方法。1. At least one selected from kerosene, light gas oil and heavy gas oil among petroleum fractions having a boiling range of 150 to 370 ° C.
The petroleum fraction A of the seed is mixed with a petroleum fraction B having an average boiling point lower than that of the fraction and having a common boiling point range part with the boiling point range of the distillate fraction or having a neighboring boiling range range part, A method for recovering petroleum fractions, which comprises passing the mixture through a fractionator for Fraction A to perform fractional distillation.
留分である特許請求の範囲第１項記載の方法。2. The method according to claim 1, wherein the fraction A is a kerosene fraction and the fraction B is a naphtha fraction.
特許請求の範囲第１項記載の方法。3. The method according to claim 1, wherein the content of the fraction B is 10% or less by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254679A JPH06104836B2 (en) | 1986-10-28 | 1986-10-28 | Oil fraction collection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254679A JPH06104836B2 (en) | 1986-10-28 | 1986-10-28 | Oil fraction collection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63110285A JPS63110285A (en) | 1988-05-14 |
| JPH06104836B2 true JPH06104836B2 (en) | 1994-12-21 |
Family
ID=17268356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61254679A Expired - Lifetime JPH06104836B2 (en) | 1986-10-28 | 1986-10-28 | Oil fraction collection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06104836B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2648459B2 (en) * | 1994-12-07 | 1997-08-27 | 出光興産株式会社 | Crude oil supply method to atmospheric distillation apparatus and apparatus therefor |
| JP4375646B2 (en) * | 2001-09-28 | 2009-12-02 | 新日本石油株式会社 | Kerosene manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210271A (en) | 1962-02-19 | 1965-10-05 | Shell Oil Co | Fractionation with side stripping |
| US3494861A (en) | 1968-06-07 | 1970-02-10 | Universal Oil Prod Co | Rectification with condensed overhead used as reflux and stripping gas |
| US4239618A (en) | 1979-05-10 | 1980-12-16 | Mobil Oil Corporation | Twin tower distillation of crude oil |
| US4606816A (en) | 1984-12-31 | 1986-08-19 | Mobil Oil Corporation | Method and apparatus for multi-component fractionation |
-
1986
- 1986-10-28 JP JP61254679A patent/JPH06104836B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210271A (en) | 1962-02-19 | 1965-10-05 | Shell Oil Co | Fractionation with side stripping |
| US3494861A (en) | 1968-06-07 | 1970-02-10 | Universal Oil Prod Co | Rectification with condensed overhead used as reflux and stripping gas |
| US4239618A (en) | 1979-05-10 | 1980-12-16 | Mobil Oil Corporation | Twin tower distillation of crude oil |
| US4606816A (en) | 1984-12-31 | 1986-08-19 | Mobil Oil Corporation | Method and apparatus for multi-component fractionation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63110285A (en) | 1988-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |