A hydraulic analysis successfully identified a bottleneck in a demethanizer column at Eastman Chemical Co.'s Longview, Tex., olefins plant. Flooding, apparent just above the tower swage (where the ...
Replacing conventional valve trays with high-capacity trays in six demethanizer columns at Saudi Aramco's Shedgum and 'Uthmaniyah gas plants eliminated a liquid load restriction in the column top ...
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