Denitrogenation of syncrude

Details Denitrogenation of syncrude Denitrogenation of syncrude

1978-03-06

1979-07-03

Crasanakis, George

Mineral oils: processes and products

Refining

Nitrogen contaminant removal

208254R, C10G 2300, C10G 1706

Patent

active

041599403

ABSTRACT:
A method for removing nitrogen from an essentially liquid syncrude feed obtained from at least one of oil shale, tar sands, and coal wherein the syncrude is mixed with an acid selected from the group consisting of sulfuric, phosphoric, hydrochloric, and combinations thereof, settling to form a first phase composed of syncrude low in nitrogen and a second phase composed of acid and syncrude high in nitrogen, separating the two phases, and catalytically hydrotreating the high nitrogen phase to reduce its nitrogen content.

REFERENCES:
patent: 2704758 (1955-03-01), Wetzel
patent: 2847362 (1958-08-01), Kemp
patent: 2944063 (1960-07-01), Paulsen
patent: 2984617 (1961-05-01), De Chellis et al.
patent: 3719587 (1973-03-01), Karchmer et al.
patent: 3778365 (1973-12-01), Hamner et al.

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