RO82409B1 - Procedeu de separare si purificare a butadienei din fractiunea c4 - Google Patents
Procedeu de separare si purificare a butadienei din fractiunea c4Info
- Publication number
- RO82409B1 RO82409B1 RO104025A RO10402581A RO82409B1 RO 82409 B1 RO82409 B1 RO 82409B1 RO 104025 A RO104025 A RO 104025A RO 10402581 A RO10402581 A RO 10402581A RO 82409 B1 RO82409 B1 RO 82409B1
- Authority
- RO
- Romania
- Prior art keywords
- butadiene
- fraction
- subjected
- extractive distillation
- separation
- Prior art date
Links
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 title abstract 14
- 238000000034 method Methods 0.000 title abstract 2
- 238000000895 extractive distillation Methods 0.000 abstract 3
- 229930195733 hydrocarbon Natural products 0.000 abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 abstract 2
- 238000000746 purification Methods 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 1
- 238000006356 dehydrogenation reaction Methods 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 abstract 1
- 125000002534 ethynyl group Chemical class [H]C#C* 0.000 abstract 1
- 238000005194 fractionation Methods 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 238000000197 pyrolysis Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000012808 vapor phase Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru separarea si purificarea butadienei din fractiunea C4 de piroliza de dehidrogenare, de oxidehidrogenare sau din amestecul lor, conform careia fractiunea C4 este supusa unei distilari extractive primare cu un solvent selectiv în proportie de 3...15/l în greutate, de preferinta 6...8/l pentru separarea butadienei brute, urmata de o distilare extractiva secundara, cu acelasi solvent selectiv în proportie de 0,5...6/l în greutate fata de hidrocarbura, de preferinta 1,5...3/1, pentru îndepartarea acetilenelor grele din butadiena, iar pentru recuperarea avansata a butadienei, se introduce odata cu alimentarea în coloana, o cantitate de izometan ca agent de stripare-dilutie care este retinut de solvent si asigura dilutia dorita a hidrocarburilor acetilenice, care sunt apoi hidrogenate în faza lichida sau de vapori pe un catalizator de paladiu sau nichel, dupa care fluxul hidrogenat este supus fractiunii pentru separarea hidrocarburilor C4 de izopentan,hidrocarburile fiind utilizate la obtinerea butadienei, iar izopentanul fiind recirculat în treapta a II-a de distilare extractiva, în timp ce butadiena este supusa unei purificari finale prin fractionarea succesiva în prezenta de inhibitori de poli merizare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81104025A RO82409A2 (ro) | 1981-04-15 | 1981-04-15 | Procedeu de separare si purificare a butadienei din fractiunea c4 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81104025A RO82409A2 (ro) | 1981-04-15 | 1981-04-15 | Procedeu de separare si purificare a butadienei din fractiunea c4 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO82409B1 true RO82409B1 (ro) | 1983-08-30 |
| RO82409A2 RO82409A2 (ro) | 1983-09-26 |
Family
ID=20109836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81104025A RO82409A2 (ro) | 1981-04-15 | 1981-04-15 | Procedeu de separare si purificare a butadienei din fractiunea c4 |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO82409A2 (ro) |
-
1981
- 1981-04-15 RO RO81104025A patent/RO82409A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO82409A2 (ro) | 1983-09-26 |
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