Process Equipment and Plant Design Back-trapping in a distillation column results due to Low reflux ratio Excessive liquid gradient over the tray High gas velocity Low gas velocity Low reflux ratio Excessive liquid gradient over the tray High gas velocity Low gas velocity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from 2 to 2.5 1.5 to 2 1 to 1.5 0.5 to 1 2 to 2.5 1.5 to 2 1 to 1.5 0.5 to 1 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd 4(0.86p² - πd²/4)/πd (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd 4(0.86p² - πd²/4)/πd ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of None of these Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required None of these Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The raio, (properller agitator dia/tank dia) is normally taken as 0.15-030 0.5-0.65 0.75-0.85 0.60-0.90 0.15-030 0.5-0.65 0.75-0.85 0.60-0.90 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 12 18 34 6 12 18 34 6 ANSWER DOWNLOAD EXAMIANS APP
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