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Title: Process for production of iso-olefin and ether

Patent ·
OSTI ID:5253658

This patent describes a process for upgrading paraffinic naphtha to high octane fuel. It comprises: contacting a fresh naphtha feedstock stream containing a major amount of C7+ alkanes and naphthenes with medium pore acid cracking catalyst having the structure of MCM-22 under low pressure selective cracking conditions effective to produce at least 10 wt% total C4-C5 isoalkene and at lease 10 wt% total C4-C5 isoalkane, the cracking catalyst being substantially free of hydrogenation-dehydrogenation metal components and having an acid cracking activity less than 15; separating cracking effluent to obtain a light olefinic fraction rich in C4-C5 isoalkene and a C6+ liquid fraction of enhanced octane value; and etherifying the C4-C5 isoalkene fraction by catalytic reaction with lower akanol to produce tertiary-alkyl either product.

Assignee:
Mobil Oil Corp., Fairfax, VA (United States)
Patent Number(s):
US 5100533; A
Application Number:
PPN: US 7-607952
OSTI ID:
5253658
Resource Relation:
Patent File Date: 1 Nov 1990
Country of Publication:
United States
Language:
English