دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a tray installed in an absorber tower or fractionating column, similar to a bubble-cap tray except that the passageways permitting gas flow upward through the tray possess valves that reduce the size of the passages when the flow rate is reduced. Valve trays are more common than bubble-cap trays, because they are more efficient and less expensive.

attraction created by the weak electrostatic forces of distributed charge in a polar molecule. Even though the water molecule as a whole is neutral, the polarity or the molecule leads to attraction between individual molecules from slight negative and pos

vapor assisted petroleum extraction.

n: a substance in the gaseous state that can be liquefied by compression or cooling.