Resumes
Resumes
Nmr Manager, Senior Research Scientist, Lecturer At Rice University
View pageLocation:
United States
Lawrence Alemany Phones & Addresses
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3319 Oak Branch Ln, Sugar Land, TX 77479 (281) 265-9395
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Woodbury, NJ
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Logan Township, NJ
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Missouri City, TX
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Logan Twp, NJ
Work
Position:
Clerical/White Collar
Education
Degree:
High school graduate or higher
Emails
Publications
Us Patents
Process For Improving Olefin Etherification Catalyst Life
View pageUS Patent:
53001265, Apr 5, 1994
Filed:
Oct 19, 1992
Appl. No.:
7/963955
Inventors:
Stephen H. Brown - Princeton NJ
Quang N. Le - Cherry Hill NJ
Lawrence B. Alemany - Swedesboro NJ
Quang N. Le - Cherry Hill NJ
Lawrence B. Alemany - Swedesboro NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
C10L 118
US Classification:
44449
Abstract:
A method is disclosed for the pretreatment of olefinic hydrocarbon feedstock to remove conjugated dienes and/or basic nitrogen compounds that deactivate acidic catalyst particles used in olefin conversion processes by reacting the dienes with one or more dienophiles to form the corresponding Diels-Alder adduct, followed by catalytic conversion of the olefinic hydrocarbon feedstock containing the adduct. The formation of the Diels-Alder adduct essentially eliminates the role of dienes in the feedstock as catalyst deactivating agents. When maleic anhydride (MA) is employed as the dienophile, basic nitrogen reacts with maleic anhydride, or with the tetrahydrophthalic anhydride adduct, to lower the amount of catalyst deactivating basic nitrogen compounds in the feedstock. Where the olefin conversion process comprises etherification of isoolefins with alkanol in a C. sub. 4 + or C. sub. 5 + olefinic hydrocarbon feedstream to produce a gasoline boiling range product enriched in oxygen and rich in high octane value alkyl tertiary alkyl ethers, it has been discovered that the adduct, particularly those adducts formed with MA, is in the gasoline boiling range and contributes usefully to the oxygen enrichment of the gasoline and to octane value.