Patent · US Active

Method for preventing three-phase separation of butenes from C4 hydrocarbon streams

US11958791B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Evonik Oxeno GmbH & Co. KG · DE

Inventors

Philip Lutze · Dinslaken, DE
Stephan Peitz · Johannesweg, DE
Armin Matthias Rix · Marl, DE
Tanita Valèrie Six · Dortmund, DE
Moritz Schröder · Kohlenbissen, DE
Niklas Paul · Marl, DE

Key dates

Filing date	Jan 21, 2022
Grant date	Apr 16, 2024
Priority date	—
Expiry date	Jan 21, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat various streams.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.