Mineral oils: processes and products – Refining – Sulfur removal
Patent
1997-02-28
1999-04-27
Griffin, Walter D.
Mineral oils: processes and products
Refining
Sulfur removal
208208R, 208209, 208213, 208214, 208216R, 208217, C10G 4504
Patent
active
058977686
ABSTRACT:
Hydrocarbon feeds are upgraded by contact of the stream under hydrodesulfurization (HDS) conditions with a catalyst system comprising a sulfided, transition metal promoted tungsten/molybdenum HDS catalyst, e.g., Ni/Co--Mo/Al.sub.2 O.sub.3 and a solid acid catalyst which is effective for the isomerization/disproportionation/transalkylation of alkyl substituted, condensed ring heterocyclic sulfur compounds present in the feedstream, e.g. zeolite or a heteropolyacid compound. Isomerization, disproportionation and transalkylation reactions convert refractory sulfur compounds such as 4- or 4,6-alkyl dibenzothiophenes into corresponding isomers or disproportionated isomers which can be more readily desulfurized by conventional HDS catalysts to H.sub.2 S and other products.
REFERENCES:
patent: 1932369 (1933-10-01), Guthke
patent: 2406200 (1946-08-01), Cole
patent: 2531767 (1950-11-01), Chenicek
patent: 2771401 (1956-11-01), Shepherd
patent: 2890165 (1959-06-01), Bednars et al.
patent: 3849296 (1974-11-01), Hensley, Jr.
patent: 4272400 (1981-06-01), Silbernagel et al.
patent: 4272401 (1981-06-01), Mohan et al.
patent: 4313820 (1982-02-01), Farha, Jr. et al.
patent: 4314901 (1982-02-01), Nowack et al.
patent: 4376699 (1983-03-01), Gardner
patent: 4443329 (1984-04-01), Eberly, Jr. et al.
patent: 4560470 (1985-12-01), McCarty et al.
patent: 4595672 (1986-06-01), Ho et al.
patent: 4655905 (1987-04-01), Plumail et al.
patent: 4659454 (1987-04-01), Varghese et al.
patent: 4663023 (1987-05-01), McCandlish
patent: 4668376 (1987-05-01), Young et al.
patent: 4812227 (1989-03-01), Jacobson et al.
patent: 4960506 (1990-10-01), Halbert et al.
patent: 5011593 (1991-04-01), Ware et al.
patent: 5164354 (1992-11-01), Aldridge et al.
patent: 5252199 (1993-10-01), Singhal et al.
patent: 5334775 (1994-08-01), Gutierrez
patent: 5391532 (1995-02-01), Soled et al.
patent: 5420092 (1995-05-01), Soled et al.
patent: 5489733 (1996-02-01), Soled et al.
patent: 5543036 (1996-08-01), Chang et al.
patent: 5593570 (1997-01-01), Habib et al.
Isoda et al, "HDS Reactivity", Am. Chem. Sec, Symposium, Aug., 1996, pp. 563-566.
Isoda et al., "HDS Reactivity", Am. Chem. Sec, Symposium, Aug. 1996, pp. 559-562.
Mochida et al., "Deep Hydrodesulfurization", Catalysts Today 29 (1996) 185-186-no month.
Buchholz Viktor
Daage Michel
Ho Teh C.
Krycak Roman
Lewis William E.
Bakun E C
Exxon Research and Engineering Co.
Griffin Walter D.
Preisch Nadine
LandOfFree
Desulfurization process for removal of refractory organosulfur h does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Desulfurization process for removal of refractory organosulfur h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Desulfurization process for removal of refractory organosulfur h will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-684006