Production of petroleum cokes

Details Production of petroleum cokes Production of petroleum cokes

1974-11-04

1976-05-25

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208131, C10G 914

Patent

active

039591158

ABSTRACT:
Any kind of virgin, low-sulfur crude oil is directly treated in a two-stage delayed coking process for yielding non-crystalline coke in the first stage and high-crystalline coke in the second stage, which process comprises preheating the crude oil in a tube heater to 460.degree. - 520.degree.C under 5-20 kg/cm.sup.2 G, maintaining the oil therein at that temperature for 30 - 500 seconds to allow the oil to be heat-soaked, subjecting the oil to first delayed coking under relatively mild conditions and subjecting the uncoked heavy residual oil to second delayed coking under relatively severe conditions.

REFERENCES:
patent: 3472761 (1969-10-01), Cameron
patent: 3547804 (1970-12-01), Noguchi et al.
patent: 3617480 (1971-11-01), Keel
patent: 3769200 (1973-10-01), Folkins

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