Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1989-03-17
1990-05-15
Howard, Jacqueline V.
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
585415, 585417, 568697, 568699, C10L 118
Patent
active
049254553
ABSTRACT:
A process is disclosed for converting a light hydrocarbon feedstock that contains a mixture of linear and branched olefins to ether-rich high octane gasoline streams that include tertiary alkyl and isoalkyl ethers such as MTBE, TAME, methyl isopropyl ether (MIPE), and methyl sec-butylether (MSBE). Further, it has been discovered that, following etherification unreacted paraffins in the process can be dehydrogenated to produce C.sub.3 -C.sub.4 olefins which can be recycled to the etherification process. The conversion is achieved by utilizing the differing reactivity of tertiary olefins under selected conditions compared to linear olefins in the catalyzed etherification processes. The process integrates a first stage tertiary olefin etherification, separation of ether-rich gasoline and a second stage linear olefin etherification to produce a second ether rich gasoline stream.
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Harandi Mohsen N.
Owen Hartley
Howard Jacqueline V.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Wise L. G.
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