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A reactor of special design is the major item of equipment in a small chemical plant. The initial cost of the completely installed reactor is $60,000, and the salvage value at the end of the useful life is estimated to be $10,000. Excluding depreciation costs for the reactor, the total annual expenses for the plant are $100,000. How many years of useful life should be estimated for the reactor if 12 percent of the total annual expenses for the plant are due to the cost for reactor depreciation? The straight-line method for determining depreciation should be used.
Develop the designed circuit using breadboard in the laboratory. Available thermal sensor can be used in the circuit. Discuss the effect of resistors on calibration of the sensor with specific emphasis on the sensitivity of the instrument.
Carolina (H2C=CHCHO) is made by selective oxidation of propylene at 2 bar, 350 °C using a molybdenum, iron, and bismuth catalyst on a silica support
Which of the following are requirements for anionic polymerization? A double bond End groups which can react by releasing a small molecule
Your company has two mixed reactors of unequal size for producing a specified product formed by homogeneous first order reaction. How these reactors should be connected to achieve a maximum production rate.
The product may bemobile or immobile; since the reaction is irreversible, it does not matter. Thisreaction shows the solute's penetration across the film. Write mass balancesfor the solute and the immobile reagent.
The massive emission of carbon dioxide (CO2), the major component of greenhouse gasin the environment, is receiving significant attention around the world. This has led tonumerous proposals to sequester or eliminate the CO 2. One of the options is..
Example introduced a heat exchange system revamp problem. If the plate heat exchanger E101 in Figure 2.19 is the gasketed-plate type, then the exchanger area can be increased by adding plates to the exchanger. How much additional area must be adde..
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.
question 1 two well of radius 18 inches are constructed in a confined aquifer 150 ft thick with hydraulic conductivity
Design a column for this separation. The column will operate at essentially atmospheric pressure. Use a reflux ratio 1.5 times the minimum.
Write down a balanced chemical equation for the polymerization and Name the polymer formed by this polymerization.
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
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