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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.
Figure shows a simple heat-exchange system. A feed stream is heated by heat exchange in a plate exchanger and then further heated in a steam heater before entering a fixed-bed reactor. The product from the reactor is cooled in the plate exchanger ..
Water at 20 °C 30 bar is heated in a closed system under constant pressure. If the quality in the final state is 75%, what is the amount of heat?
Using the results of part (a), show that the electrons will fail to reach the second plate if (see the attached file for the equation) where -e and m are the charge and mass of an electron.
For a certain process, the maximum allowable pressure is 0.20 torr. If a D65 rotary vane pump is used and conductance losses in the vacuum system can be ignored; what is the maximum permissible inlet flow in standard cubic centimeters per minute?
For the electromagnet shown in Figure P12.4.3, the λ-i relationship for the normal working range is given by i = aλ2 + bλ(x - d)2, where a and b are constants. Determine the force applied to the plunger by the electric system.
The horsepower output from the prime mover to drive the generator at this load.
Elemental iodine (I2) is a solid at room temperature. What is the major attractive force that exists among different I2 molecules in the solid?
Which of the following are requirements for anionic polymerization? A double bond End groups which can react by releasing a small molecule
find the voltage induced in the armature, given that the number of parallel paths is equal to the number of poles for lap windings.
determine the kVA rating of the autotransformer, the kVA transformed by transformer action, and the kVA conducted.
A current i(t) = 20 cos(2π × 60)t A flows through a wire. Find the charge flowing, and the number of electrons per second that are passing some point in the wire.
What is Pmax (the theoretical steady-state limit of a lossless line), which is the maximum power that the line can deliver?
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