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A catalytic process uses a catalyst which must be regenerated periodically because of reduction in conversion efficiency. The cost for one regeneration is constant at $800. This figure includes all shutdown and startup costs, as well as the cost for the actual regeneration. The feed rate to the reactor is maintained constant at 150 lb/day, and the cost for the feed material is $2.50 per pound. The daily costs for operation are $300, and tixed charges plus general overhead costs are $100,090 per year. Tests on the catalyst show that the yield of product as pounds of product per pound of feed during the first day of tgeration with the regenerated catalyst is 0.87, and the yield decreases as 0.87/(θD)0.25, where θD, is the time in operation expressed in days. The time necessary to shut down the unit, replace the catalyst, and start up the unit is negligible. The value of the product is $14.08 per pound, and the plant operates 300 days per year. Assuming no costs are involved other than those mentioned, what is the maximum annual profit that can be obtained under these conditions?
What is the principle of lime Soda process? Give their functions with chemical reactions. 2. Write notes on reverse osmosis and ultra filtration.
A storage tank is purged continuously with a stream of nitrogen. The purge stream leaving the tank is saturated with the product stored in the tank.
Adipic acid is used in the manufacture of nylon 6,6. It is made by hydrogenation of phenol to a mixture of cyclohexane and cyclohexane (known as KA oil-ketone and alcohol), followed by oxidation with nitric acid.
The heat capacity at constant pressure of hydrogen cyanide is given by the expression Cp[J/(mol ·°C)] = 35.3 + 0.0291T(°C) (a) Write an expression for the heat capacity at constant volume for HCN, assuming ideal gas behavior.
Which of the following are requirements for anionic polymerization? A double bond End groups which can react by releasing a small molecule
Carbon monoxide (CO) is burnt in presence of 200% excess pure oxygen and the flame temperature achieved is 2298 K. The inlet streams are at 25 °C.
the equilibrium constant K for the reaction - what is the concentration of SO3 at equilibrium?
Determine whether a linear correlation of y with x accounts for all but the error variation in y from the following replicate values of y at different levels of x.
question 1nbspheat capacities cv and cp are defined as temperature derivatives respectively of u and h. show that the
Are small banks like Yolo Bank more or less likely to engage in off-balance sheet activities compared with large banks like BOA? Explain why or why not.How have banks managed to get around reserve requirements and regulation Q?
What is the melting point at standard conditions for ammonia? Boling point is given -33.4C.
What is the best solvent to seperate phosphoric acid from aqueous calcium chloride solution
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