Mineral oils: processes and products – Refining – Sulfur removal
Patent
1996-09-23
1998-09-15
Caldarola, Glenn
Mineral oils: processes and products
Refining
Sulfur removal
208143, 208244, 208 85, 585259, 585260, 585 21, 585264, 585275, 203DIG6, C10G 2920, C10G 2904, C10G 4534, C07C 503
Patent
active
058074775
ABSTRACT:
A process for treating a light cracked naphtha to be used as an etherification or alkylation feedstock in which the mercaptans and diolefins reacted in a single pass fixed bed reactor and are removed in a distillation column reactor which hydrogenate the unreacted diolefins. The mercaptans are reacted with the diolefins to form sulfides which are higher boiling than that portion of the naphtha which is used as feed to the etherification or alkylation unit. The higher boiling sulfides are removed as bottoms along with any C.sub.6 and heavier materials. Any diolefins not converted to sulfides are selectively hydrogenated to mono-olefins for use in the etherification process. Certain C.sub.5 olefins, for example pentene-1 and 3-methyl butene-1 are isomerized during the process to more beneficial isomers.
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Gildert Gary R.
Hearn Dennis
Caldarola Glenn
Catalytic Distillation Technologies
Dang Thuan D.
Johnson Kenneth H.
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