Visbreaking process
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United States of America Patent
Stats
-
Aug 20, 1985
Grant Date -
N/A
app pub date -
Dec 19, 1983
filing date -
Dec 19, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved visbreaking process having a lower utilities (heating fuel) cost is disclosed. The feed stream is heated by indirect heat exchange against the bottoms stream of a first fractionation column, which receives the effluent of the visbreaking heater. A portion of this bottoms stream is then used as quench. This quench stream is hotter and has a higher flow rate than previous designs. The feed is heated to a higher temperture by the indirect heat exchange and therefore less fuel is required in the visbreaker fired heater.
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Cited Art Landscape
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