C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 21/06 (2006.01) C10G 55/04 (2006.01)
Patent
CA 2244598
A hydrocarbon source feed is upgraded using a solvent deasphalting (SDA) unit employing a solvent having a critical temperature T c by initially separating from a first hydrocarbon input stream fractions with an atmospheric equivalent boiling temperature less than about T f ° F. for producing a stream of T f- fractions and a residue stream (T f+ stream), where T f is greater than about T c - 50 ° F. In the SDA unit, a second hydrocarbon input stream which includes the residue stream is deasphalted for producing a first product stream of substantially solvent-free asphaltenes, and a second product stream containing substantially solvent-free deasphalted oil (DAO). The source feed may be included in either the first or second input streams. The DAO in the second product stream is thermally cracked for producing an output stream that includes thermally cracked fractions and by-product asphaltenes produced by thermally cracking the DAO. Finally, at least some the said thermally cracked fractions are included in the first input stream.
Bronicki Lucien Y.
Doron Benjamin
Goldstein Randall S.
Hood Richard L.
Rettger Philip B.
Ormat Industries Ltd.
Ormat Process Technologies Inc.
Shapiro Cohen
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