JP2011256157A5 - - Google Patents
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- JP2011256157A5 JP2011256157A5 JP2011009013A JP2011009013A JP2011256157A5 JP 2011256157 A5 JP2011256157 A5 JP 2011256157A5 JP 2011009013 A JP2011009013 A JP 2011009013A JP 2011009013 A JP2011009013 A JP 2011009013A JP 2011256157 A5 JP2011256157 A5 JP 2011256157A5
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- fraction
- purified
- column
- discharged
- boiling point
- Prior art date
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Description
この第１の蒸留塔１２の塔頂から流出される、重質物が分離された粗Ｃ５留分は、第２の蒸留塔１３に導入され、Ｃ４以下の低沸物を除去する蒸留工程（第２の蒸留工程）が行われる。このＣ４以下の低沸物は塔頂から流出され、Ｃ５留分（以下、「精製Ｃ５留分」と称することがある。）が塔底から流出される。この精製Ｃ５留分は、イソプレン、ピペリレン、シクロペンタジエン、アミレンなどの有用成分を含んでいる。これらの有用成分は、図示しない後工程で分離精製される。 The crude C5 fraction separated from the heavy substances, which flows out from the top of the first distillation column 12, is introduced into the second distillation column 13 to remove a low boiling point product of C4 or less (first step). 2 distillation step) is performed. The low boiling point C4 or lower is discharged from the top of the column, and the C5 fraction (hereinafter sometimes referred to as “purified C5 fraction”) is discharged from the bottom of the column. The purified C5 fraction comprises isoprene, piperylene, cyclo pentadiene, the useful components such as amylene. These useful components are separated and purified in a later step (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011009013A JP5582044B2 (en) | 2010-05-12 | 2011-01-19 | Distillation tower pressure control method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010110039 | 2010-05-12 | ||
| JP2010110039 | 2010-05-12 | ||
| JP2011009013A JP5582044B2 (en) | 2010-05-12 | 2011-01-19 | Distillation tower pressure control method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011256157A JP2011256157A (en) | 2011-12-22 |
| JP2011256157A5 true JP2011256157A5 (en) | 2013-09-19 |
| JP5582044B2 JP5582044B2 (en) | 2014-09-03 |
Family
ID=45472754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011009013A Active JP5582044B2 (en) | 2010-05-12 | 2011-01-19 | Distillation tower pressure control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5582044B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102601400B1 (en) | 2015-09-30 | 2023-11-14 | 주식회사 다이셀 | Acetic acid production method and production device |
| CA3004330C (en) * | 2015-11-04 | 2020-05-12 | Exxonmobil Chemical Patents Inc. | Process and system for making cyclopentadiene and/or dicyclopentadiene |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123138A (en) * | 1985-11-22 | 1987-06-04 | Mitsubishi Chem Ind Ltd | Method for separating and recovering cyclopentadiene |
| JP3128167B2 (en) * | 1992-01-13 | 2001-01-29 | 三井化学株式会社 | How to make high quality pentane |
| JP3673565B2 (en) * | 1995-07-17 | 2005-07-20 | 日揮株式会社 | Distillation apparatus and distillation method |
| DE102004005930A1 (en) * | 2004-02-06 | 2005-08-25 | Basf Ag | Process for the recovery of crude 1,3-butadiene |
| JP4725360B2 (en) * | 2006-02-27 | 2011-07-13 | 住友化学株式会社 | Distillation system and method for controlling top pressure of distillation column in distillation system |
| JP2011256156A (en) * | 2010-05-12 | 2011-12-22 | Mitsubishi Chemicals Corp | Temperature control method for distillation column |
-
2011
- 2011-01-19 JP JP2011009013A patent/JP5582044B2/en active Active
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