Mineral oils: processes and products – Refining – Sulfur removal
Patent
1997-01-09
1998-06-02
Caldarola, Glenn
Mineral oils: processes and products
Refining
Sulfur removal
208208R, 208209, 208213, 208216R, 208238, 585250, 585258, 585259, 585260, 585276, 585664, 585670, 585671, C10G 4504, C10G 4500, C07C 503, C07C 522
Patent
active
057593868
ABSTRACT:
A light hydrocarbon stream, such as a C.sub.3 -C.sub.5 stream recovered from an FCC unit, is catalytically treated for the selective hydrogenation of dienes and for the removal of mercaptans by thioetherification. The effluent of the reaction zone is fractionated to remove light ends and thioethers in a dual section fractionation zone, with the interconnection of the sections facilitating a reduction in capital and operating costs.
REFERENCES:
patent: 3919341 (1975-11-01), Germanas et al.
patent: 4695560 (1987-09-01), Gattuso et al.
patent: 4775462 (1988-10-01), Imai et al.
patent: 5087780 (1992-02-01), Arganbright
patent: 5463134 (1995-10-01), Frey
"Reduce the Cost of Producing TAME, AM-94-52" presented at the 1994 National Petroleum Refiners Association annual meeting held Mar. 20-22, 1994 at San Antonio, Texas.
"ABB Lummus Crest/CD Technology for Total and Selective Hydrogenation of Steam Cracker C.sub.4 Streams" presented at the 1993 Dewitt Petrochemical Review at Houston, Texas on Mar. 23-25, 1993.
Caldarola Glenn
Dang Thuan D.
McBride Thomas K.
Spears Jr. John F.
UOP
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