Contact tray for a mass transfer column
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United States of America Patent
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Apr 16, 2019
Grant Date -
Jan 12, 2017
app pub date -
Jul 1, 2016
filing date -
Jul 8, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A valve contact tray for use in a mass transfer or heat exchange column and having a plurality of fixed or moveable valves distributed across a tray deck of the contact tray. Each of the valves includes an opening in the tray deck, a valve cover connected to attachment legs, and a weir surrounding the opening. The valve cover is wider than and extends outwardly beyond the underlying opening in the tray deck and has a perimeter region that extends downwardly. A louvered vent opening may be provided in a downstream one of the attachment legs.
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