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A gas-phase exothermic reaction is approved out in a multi-tube reactor with the catalyst in 1-inch. Tubes and boiling water in the jacket. The feed temperature and the jacket temperature are 240 oC. The average reactor temperature rises to 250 oC a short distance from the inlet and then gradually decreases to 241 oC at the reactor exit. The resistance to heat transfer is about equivalent divided among the bed and the film at the wall. If the tube diameter were enhanced to 1.5 in. with the similar catalyst, what should the jacket temperature be to keep the peak reactor temperature at 250 oC? Draw the temperature profiles for the two cases. What pressure steam would be generated for the two cases?
For high speed of reading and storing the information's in a computer, the use is made of Ferrites.
i am doing project on design of absorption column for the removal of n204 from atmospheric air..please help me
What is phosphate conditioning in water softening?
a) The vacuum in the headspace of a can of food is normally formed by "hot fill" exhausting - that is, the cans are closed when the can is filled with product at a temperature o
Why protons doesn''t react which each other?
An electron in the conduction band Has a higher energy than an electron in the valence band
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The functions of the oxide layer are to: 1. mask against diffusion or ion-implant 2. passivate the surface electrically and chemically 3. isolate one device from another
The most common DC applications are: Electromagnets and yokes • Relays • Magnetic shields • Electrical measuring devices • Magnetic amplifiers
Define Cohesive energy Cohesive energy can be described as the difference among the average energy of the atoms of a solid (especially a crystal) and that of the free atoms.
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