Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1992-07-29
1994-09-27
Myers, Helane
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208 50, C10G 914
Patent
active
053505034
ABSTRACT:
A consistent high quality coke is produced by feeding a balancing stream comprising hydrocarbons to a delayed coking drum in addition to the heavy hydrocarbonaceous coker feedstock. The process of this invention reduces the contaminant content of coke by coking contaminant-containing residua and a reduced contaminant hydrocarbon balancing stream. Preferably, the balancing stream is a contaminant diluent, such as unreduced crude. The balancing stream may be a crude which is different from the base crude processed in the refinery crude tower and is preferably selected as a sulfur and/or metals diluent having a lower concentration of sulfur-containing or metal-containing compounds than the heavy coker feedstock.
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Freymeyer Douglas A.
Holloway Richard L.
Kiracofe Ronald J.
Sampath Vijay R.
Atlantic Richfield Company
Myers Helane
Pruitt Tom F.
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