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A class 2 estimate of the ISBL capital cost of building a 200,000 MMlb/yr ethylene cracking plant has been stated as $850 MM -5%/+10%. The plant is to be built as an expansion of an existing site and offsite costs are estimated to be between $170 MM and $250 MM. Estimate a value for the total project cost that will give 98% confidence that the project can be carried out within the amount estimated.
The Brayton cycle has the same 4 processes as the Rankine cycle, but the T-S and P-V diagrams look very different, why is that?
Two equilibrium stages at 25C are used as shown in the following diagram. If 300 kg H2O/h is fed to each extraction unit, what fraction of the acetone in the feed solution would be removed and what would be the composition of the combined extract?
Suppose the various color frequency and intensity values that comprise a color analysis are combined into a single numerical value, C, for a particular yellow dye. During a test period in which the reactor conditions are carefully controlled and t..
For the MgO-Al2O3 system, what is the maximum temperature that is possible without the formation of a liquid phase? At what composition or over what range of compositions will this maximum temperature be achieved?
Suppose you pour a gallon of water on a yowling cat 10 ft below your bedroom window. (a) How much potential energy (ft · 1bf) does the water lose?
Burning the coke deposited on the catalyst particles generates all the heat necessary for catalytic cracking. Therefore, the coke burning rate is a critical parameter to control the rate of cracking. The composition of dry flue gas from the regenerat..
Calculate the diffusion flux at 1027(C (1300 K) for the same concentration gradient and assuming an activation energy for diffusion of 125,000 J/mol.
Evaluate particle diameter at different terminal gas velocities
Calculate the theoretical stages needed to separate a 10 mole% ethanol liquid saturated feed into a 80 mole% distillate and a 0.1 mole% bottoms at 1 atmosphere pressure.
The potential energy between two atoms A and B are constants and r the interatomic separation distance.
Carbon dioxide can be separated from other gases by preferential absorption into an amine solution. The carbon dioxide can be recovered by heating at atmospheric pressure. Suppose pure CO2 vapor is available from such a process at 80°C and 1 bar. Sup..
A stream of 5.00 wt% oleic acid in cottonseed oil enters an extraction unit at a rate of 100.0 kg/hr. A separate stream of propane enters the unit. Propane is able to dissolve oleic acid but cannot mix with the cottonseed oil. Two streams exit the un..
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