MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202647076221 A) filed by Sabic Global Technologies B. V. on June 19, 2026, for Methods And Systems To Produce Ethylene, Propylene, And/Or 1-Hexene From Butenes Using Metathesis In Combination With Steam Cracking Or Fluid Catalytic Cracking.
Inventors include Guggilla, Vidya Sagar; Vuppula, Rajitha; and Sharma, Amit.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: A method provided herein includes: cracking at least a hydrocarbon feedstock to produce a cracked stream; providing at least the cracked stream to a downstream separation section to produce at least an ethene product stream, a propene product stream, and a C4 raffinate stream; pretreating the C4 raffinate stream to produce a pretreated C4 stream; performing C4 isomerization of the pretreated C4 stream to produce a but-1-ene-rich stream; metathesizing at least the but-1-ene-rich stream to produce a metathesis product stream; separating the metathesis product stream into at least a C2-C3 olefin stream, a C4 olefin stream, and a C6 olefin stream; purging a portion of the C4 olefin stream to produce a purge stream that contains at least one paraffin; combining a remainder of the C4 olefin stream after purging with the but-1- ene-rich stream prior to metathesis; and providing the C2-C3 olefin stream to the downstream separation section along with the cracked stream to produce the ethene product stream and the propene product stream.
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