Patent · US Active

Paraffin removal from C4 containing streams

US10343959B2 · kind B2 · utility

0Cited by

4References

18Claims

0Family size

Assignee

Lyondell Chemical Technology, L.P. · US

Inventors

Majid Keyvani · Glen Mills, US
Gary A. Sawyer · Media, US
Arsam Behkish · Flemington, US

Key dates

Filing date	Jul 26, 2017
Grant date	Jul 9, 2019
Priority date	—
Expiry date	Sep 14, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C9/22
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present disclosure relates to processes for the removal of paraffins. The processes generally include providing a C4 containing stream including isobutylene, 1-butene, 2-butene, n-butane and isobutane, introducing the C4 containing stream into a paraffin removal process to form an olefin rich stream, wherein the paraffin removal process is selected from extractive distillation utilizing a solvent including an organonitrile, passing the C4 containing stream over a semi-permeable membrane and combinations thereof; and recovering the olefin rich stream from the paraffin removal process, wherein the olefin rich stream includes less than 5 wt. % paraffins.

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