Nitrogen insertion protection system
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United States of America Patent
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Aug 11, 1998
Grant Date -
N/A
app pub date -
Dec 27, 1996
filing date -
Dec 27, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Problems with pressure in a catalyst bed contained within a vessel arise where there is some sort of blockage in the bed such as a crust formed by a layer of catalyst particles sticking together. To overcome this problem control means is provided to coordinate the flow of nitrogen gas into the vessel and the resulting gas pressure build up and maintenance in the catalyst bed and in the bottom of the vessel as well as in the vapor space of the vessel above the catalyst bed.
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