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Cinemas aldehyde (a fragrance compound) can be made by base-catalyzed aldol condensation reaction between Benz aldehyde and acetaldehyde. The feeds are contacted with sodium hydroxide in a stirred tank reactor. The product is neutralized and washed with water to remove salts. The washed product is usually separated by batch distillation, in which unreacted feeds are recovered first, followed by product, and a polymeric waste is left as residue. The batch distillation product can be further purified by vacuum distillation. Sketch a block flow diagram of the process.
Discuss how the phase equilibria of mixtures are represented using diagrams similar to the pressure-temperature and pressure-specific volume diagrams for one- component systems. Use the example of a mixture of ethane and heptane to illustrate your..
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..
Prepare a piping diagram and calculate the pipe size as well as the required power of the pump. You need to specify the type of fittings and the pipe material for your calculations.
Two separate metal blocks of thickness d and 2d are kept at constant temperature T0 at the top anda constant heat flux q0 is provided at the bottom. Draw the steady state temperature profile for eachof the blocks.
Determine the d-spacing (Å), to 3 decimal places
Write balanced equations for the combustion of each component of the fuel gas.
A plating waste with a flow of 50 L/min contains 274 mg/L of NaCN. Determine the amounts of chlorine as Ca(OCl)2 and NaOH required to: (a) Oxidize the cyanide to cyanide; and (b) Oxidize the cyanide to CO2 and H2O.
Evaluate the stability using Rouths Hurwartz criterion and obtain the range of K value for the stability under various controllers and evaluate the relative stability of the system with P and I controllers.
Cite the indices of the direction that results from the intersection of each of the following pair of planes within a cubic crystal:
where and Qp are constants for a given gas-polymer pair. Consider the diffusion of hydrogen through a poly (dimethyl siloxane) (PDMSO) sheet 20 mm thick.
Develop the designed circuit using breadboard in the laboratory and discuss the effect of resistors on calibration of the sensor with specific emphasis on the sensitivity of the instrument.
For the following cases: How much energy is lost every day when the steam temperature is maintained at 200oC, and the surrounding average air temperature is 20.0oC, and the surroundings average air temperature is 20.0oC? Neglect losses though the end..
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