Acrylic acid (CH2wCHCOOH) is used to prepare polymers, adhesives, and paints. The first

Chapter 5, Problem 5.120

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Acrylic acid (CH2wCHCOOH) is used to prepare polymers, adhesives, and paints. The first step in making acrylic acid involves the vapor-phase oxidation of propylene (CH2wCHCH3) to acrolein (CH2wCHCHO). This step is carried out at 3308C and 2.5 atm in a large bundle of tubes around which a heattransfer agent circulates. The reactants spend an average of 1.8 s in the tubes, which have a void space of 100 ft3. How many pounds of propylene must be added per hour in a mixture whose mole fractions are 0.07 propylene, 0.35 steam, and 0.58 air?

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