Methods and systems for purifying 1,3-butadiene from a C4 hydrocarbon stream
AssigneeSabic Global Technologies B.V.
InventorsKuldeep Wadhwa, Antonio Matarredona, Radu Ignat, Sekhar Mamilla, Christoph Roosen, Alex Londono
Life of this patent
Estimating the term…
Abstract
The presently disclosed subject matter relates to methods and systems for purifying 1,3-butadiene from a C4 hydrocarbon stream. An example method includes introducing a C4 hydrocarbon stream including 1,3-butadiene and acetylenes to an organic azide in the presence of a catalyst to generate a first stream including triazole, separating triazole from the first stream to produce a second stream including 1,3-butadiene, and distilling 1,3-butadiene from the second stream to produce a purified 1,3-butadiene product stream.
Claims14
A system for purifying 1,3-butadiene from a C4 hydrocarbon stream including 1,3-butadiene and one or more acetylenes, comprising:
- an azide-alkyne cycloaddition reactor suitable for an azide-alkyne cycloaddition reaction configured to receive said C4 hydrocarbon stream and an organic azide to generate a first stream comprising 1,3-butadiene and a triazole;
- a first distillation unit coupled to the azide-alkyne cycloaddition reactor configured to separate the triazole from the first stream to produce a second stream comprising 1,3-butadiene;
- and
- a catalyst suitable for azide-alkyne cycloaddition in said azide-alkyne cycloaddition reactor;
- wherein the catalyst comprises a member selected from the group consisting of Cu, Au, Ag, Hg, Cd, Zr, Ru, Fe, Co, Ni, Rh, Ti and W.
Dependencies are inferred from the claim text.