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Derive Eq. (49) for the optimum economic pipe diameter and compare this to the equivalent expression presented as Eq. (5-90) in J. H. Perry and C. H. Chilton, ed., "Chemical Engineers' Handbook," 5th ed., p. 5-32, McGraw-Hill Book Company, New York, 1973.
An evaporator is used to concentrate 20 wt % NaOH solution entering at 150°F to a 45 wt% NaOH solution exiting at 200°F. What is the pressure in the vapor space of the evaporator
find the voltage and power at the sending end and the voltage regulation.
using the concept of a mass balance describe how environmental engineers and scientists model the carbon cycle in the
Isophthalic acid (IPA, formula HOOC-C6H4-COOH) is made by oxidation of m-xylene with air. The reaction is carried out in acetic acid solvent at about 200 °C using a cobalt-manganese catalyst promoted by bromine.
A mixture of 25% ammonia gas and 75 % air ( dry basis) is passed upward through a vertical scrubbing tower , to the top of which water is pumped. Scrubbed gas containing 0.5 % ammonia leaves the top of the tower, and an aqueou..
For a reversible liquid phase reaction A-^R, the conversion is 33.3% after 8 minutes and equilibrium conversion is 66.7%. Find the rate equation for the reaction.
Reaction engineering problem- Question 7 - A rocket engine burns a stoichiometric mixture of fuel ( liquid hydrogen ) in oxidant ( liquid oxygen) . The combustion chamber is cylindrical , 75 cm long and 60 cm in diameter , and the combustion proce..
A plant is producing 10,000 metric tons per year (10 kt/y or 10 kMTA) of a product. The overall yield is 70 wt% (0.7 kg of product per kg raw material). The raw material costs $500/metric ton, and the product sells for $900/metric ton. A process m..
1. In this problem, you learn how to apply the energy balance to a closed system containing an ideal gas with constant Cpfor 3 different processes.
Determine the concentration of the exhaust gas and Determine the flow rate of exhaust gas through the smokestack.
Acetylene is formed as a by-product in the manufacture of ethylene. It is removed by selective hydrogenation using noble metal catalysts (see, for example, US 7,453,017). A particular catalyst achieves 90% acetylene saturation with 50% hydrogen se..
Using the data on equipment costs given in this chapter or commercial cost estimating software, estimate the cost of the following equipment:
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