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U.S. Department of Energy
Office of Scientific and Technical Information

Process for treating hydrocarbon vapors

Patent ·
OSTI ID:7215892
A method of treating hydrocarbon oils to produce lower boiling hydrocarbons from higher boiling hydrocarbons is described. Charging oil is forced under regulable pressure into a preheating zone and preheated to a temperature sufficient to flash the oil into vapor at sub-atmospheric pressure, while maintaining in the zone a pressure above atmospheric. The oil is released from pressure in the preheating zone into an expanded flashing zone to flash into vapor substantially the entire amount of oil while maintaining subatmospheric pressure. The vapors produced in the flashing zone are drawn through an open connection into a cracking zone which is under a lower subatmospheric pressure, drawing out the cracked vapors so as to maintain low pressure. The vapors are then passed through fractionating zones and the desired vapors are passed from the last fractionating zone to cooling and separating zones.
Assignee:
Panhandle Refining Co.
Patent Number(s):
US 1948890
OSTI ID:
7215892
Country of Publication:
United States
Language:
English