Systems and processes integrating steam cracking with dual catalyst metathesis for producing olefins

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United States of America Patent

PATENT NO 11939540
APP PUB NO 20230151284A1
SERIAL NO

18092655

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Abstract

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Processes for producing olefins include integration of steam cracking with a dual catalyst metathesis process. The processes include steam cracking a hydrocarbon feed to form a cracking reaction effluent containing butenes, separating the cracking reaction effluent to produce a cracking C4 effluent including normal butenes, isobutene, and 1,3-butadiene, subjecting the cracking C4 effluent to selective hydrogenation to convert 1,3-butadiene in the cracking C4 effluent to normal butenes, removing isobutene from a hydrogenation effluent to produce a metathesis feed containing normal butenes, and contacting the metathesis feed with a metathesis catalyst and a cracking catalyst directly downstream of the metathesis catalyst to produce a metathesis reaction effluent. Contacting with the metathesis catalyst causes metathesis of normal butenes to produce ethylene, propene, and C5+ olefins, and contacting with the cracking catalyst causes C5+ olefins produced through metathesis to undergo cracking reactions to produce additional propene, ethylene, or both.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANYP O BOX 5000 DHAHRAN 31311

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abudawoud, Raed H Khobar, SA 10 19
Aljumah, Furqan Dhahran, SA 6 0
Khokhar, Munir D Dhahran, SA 22 43
Shaikh, Sohel K Dhahran, SA 45 116
Zhang, Zhonglin Dhahran, SA 77 250

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