Fired heater for coal liquefaction process
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United States of America Patent
Stats
-
Dec 17, 1985
Grant Date -
N/A
app pub date -
Oct 19, 1983
filing date -
Oct 19, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fired heater for a coal liquefaction process is operated under conditions to maximize the slurry slug frequency and thereby improve the heat transfer efficiency. The operating conditions controlled are (1) the pipe diameter and pipe arrangement, (2) the minimum coal/solvent slurry velocity, (3) the maximum gas superficial velocity, and (4) the range of the volumetric flow velocity ratio of gas to coal/solvent slurry.
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