Injection method for feeding particulate to a process vessel
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United States of America Patent
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Oct 31, 2000
Issued Date -
N/A
app pub date -
Nov 12, 1998
filing date -
May 22, 1997
priority date (Note) -
Expired
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Abstract
An injection method for feeding a particulate material to a process vessel, including a valve with at least one cavity adapted for receipt of a predetermined volume of particulate and a sweep stream source for providing a sweep stream having flow in a direction generally toward the valve to remove substantially all of the particulate from the cavity of the valve.
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