SU792818A1 - METHOD FOR SEPARATION OF HYDROCARBON FRACTIONS - Google Patents
METHOD FOR SEPARATION OF HYDROCARBON FRACTIONSInfo
- Publication number
- SU792818A1 SU792818A1 SU2822987/04A SU2822987A SU792818A1 SU 792818 A1 SU792818 A1 SU 792818A1 SU 2822987/04 A SU2822987/04 A SU 2822987/04A SU 2822987 A SU2822987 A SU 2822987A SU 792818 A1 SU792818 A1 SU 792818A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- butene
- separation
- fraction
- butadiene
- butane
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Способ разделения Суглеводородных фракций двустадийного дегидрирования н-бутана, включающий выделение из бутан-бутен-бутадиеновой фракции первой стадии дегидрирования путем ректификации в качестве кубового продукта бутан-бутеновой фракции, которую направляют на разделение в колонну экстрактивной ректификации, а в качестве дистиллята бутен-бутадиеновой фракции, из которой совместно с бутен-бутадиеновой фракцией второй стадии дегидрирования путем экстрактивной ректификации выделяют бутеновую фракцию и бутадиен, отличающийся тем, что, с целью снижения потерь бутадиена на стадии дегидрирования, бутеновую фракцию в количестве 2,5 - 30 мас.% возвращают в исчерпывающую часть колонны экстрактивной ректификации бутан-бутеновой фракции.The method of separation of the hydrocarbon fractions of the two-stage dehydrogenation of n-butane, including the separation from the butane-butene-butadiene fraction of the first stage of dehydrogenation by distillation as the bottom product of the butane-butene fraction, which is sent for separation in the extractive distillation column, and butene-butadiene form as distillate , from which, together with the butene-butadiene fraction of the second stage of dehydrogenation, the butene fraction and butadiene are separated by extractive distillation, characterized in that then, in order to reduce the loss of butadiene at the dehydrogenation stage, the butene fraction in the amount of 2.5–30 wt.% is returned to the exhaustive part of the extractive distillation column of the butane-butene fraction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2822987/04A SU792818A1 (en) | 1979-07-09 | 1979-07-09 | METHOD FOR SEPARATION OF HYDROCARBON FRACTIONS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2822987/04A SU792818A1 (en) | 1979-07-09 | 1979-07-09 | METHOD FOR SEPARATION OF HYDROCARBON FRACTIONS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU792818A1 true SU792818A1 (en) | 2000-12-20 |
Family
ID=60516972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2822987/04A SU792818A1 (en) | 1979-07-09 | 1979-07-09 | METHOD FOR SEPARATION OF HYDROCARBON FRACTIONS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU792818A1 (en) |
-
1979
- 1979-07-09 SU SU2822987/04A patent/SU792818A1/en active
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