Answer / verma d k

absorber a process equipment are used to remove one or
more gaseous component from gaseous mixture by using
suitable type solvent mostly present in lessr quantity.
Scrubber are basically pollution control equipment used to
scrub out air pollutant ( mainly particultes, and acid
gases) from exhaust system.
Mechanism of Scrubber: inetial impaction or diffusion
method mostly and lesser use of chemical affinity.
Mechanism of absorber: Chemical affinity

Answer / pafl

Absorber is used mostly for removal of only gaseous component from gaseous stream using suitable solvent which then is regenerated while scrubber is used to remove pollutant from outgoing gases mostly pollutants are gases (acid gases), particulate, dust etc. while there is no necessary regeneration of solvent in scrubber other assembly is similar in both absorber and scubber

Answer / khaja moizuddin

Scrubber neutralize the ph of the evolved gaseous mixture where absorber dont

Answer / nag

absorber: which seperates the particles based on the
affinity between particles and stationary absorbent.
scrubber: which seperates the heavier particles based on
the velocity principle. when ever heavy particles collides
with scrubber inclined surface, velocity will become zero.

when selecting psv(pressure safety valve),what are all things we have to keep it in mind?

4 Answers   Qasco,

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hai please please if any one have useful test related and interview based question plz send me at saify_0@hotmail.com i will be thankfull

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Question 41 - According to Raoult's law, the pressure when vapor is completely condensed, P = x(1) P(1) + x(2) P(2) ... + x(n) P(n) when x(1), x(2) ... x(n) are the mole fractions of component 1, 2 ... n and P(1), P(2) ... P(n) are the vapor pressures of component 1, 2 ... n. A vapor at 74 degree Celsius containing 70 mole % water and 30 mole % ethanol is to be completely condensed. At the temperature of 74 degree Celsius vapor pressure is 0.38 atm for water and 0.97 atm for ethanol. What is the minimum pressure the compressor must be operated?

1 Answers  

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ENGINEERING MATHEMATICS - EXAMPLE 8.1 : A local utility burns coal having the following composition on a dry basis : Carbon (C) 83.05 %, hydrogen (H) 4.45 %, oxygen (O) 3.36 %, nitrogen (N) 1.08 %, sulfur (S) 0.7 % and ash 7.36 %. Calculate the ash free composition of the coal with reference to C, H, O, N and S.

1 Answers  

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What is maximum recommend pipe velocity for dry and wet gases?

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THERMODYNAMIC - EXAMPLE 10.3 : According to Raoult's law, the pressure when vapor is completely condensed, P = x(1) P(1) + x(2) P(2) ... + x(n) P(n) when x(1), x(2) ... x(n) are the mole fractions of component 1, 2 ... n and P(1), P(2) ... P(n) are the vapor pressures of component 1, 2 ... n. A vapor at 74 degree Celsius containing 70 mole % water and 30 mole % ethanol is to be completely condensed. At the temperature of 74 degree Celsius vapor pressure is 0.38 atm for water and 0.97 atm for ethanol. What is the minimum pressure the compressor must be operated?

1 Answers  

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What are the types of clarifier used in water treatement plant?

1 Answers   Adani,

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.18 : An investor is planning to purchase a small office for biochemical engineering consultancy on loan. In the calculation of the discount of payment in arrears, the following formula is used : y = 1 / (1 + r) ^ 1 + 1 / (1 + r) ^ 2 + 1 / (1 + r) ^ 3 + ... + 1 / (1 + r) ^ n where y = present value, r = interest rate of discount, n = number of payment, ^ = power used in certain computer languages for mathematics. (a) What is the meaning of : arrears? (b) Find a mathematical equation of y (1 + r). (c) Calculate, in less than 3 terms, y as a function of r and n.

1 Answers  

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QUANTUM BIOLOGY - EXAMPLE 33.9 : (a) Let ^ be the symbol of power where 10 ^ 1 = 10, 10 ^ 2 = 100, 10 ^ 3 = 1000 etc. Total energy consumption of the brain is about 25 Watts, whereas a Blue Gene computer requires 1.5 Mega Watts. Blue Gene computer performs at 1 petaflop. In a human body, there are approximately 10 ^ 16 synapse operations per second i. e. at least 10 petaflops. Prove by calculations that a human brain is more energy efficient than a Blue Gene computer. (b) Quantum effects and quantum entanglement in the brain are identical to quantum gravity and string theory. If one is true, the other is true. What conclusion can be made if quantum effects in the brain and quantum gravity are true?

1 Answers  

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What are the criteria’s involved in choosing mass balances for components?

0 Answers  

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Explain the functioning of a three-way catalytic converter.

0 Answers  

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Plz if anybody has placement paper of HAL mail me i m Chemical engg my id er.kotnala@gmail.com

0 Answers   HAL, IOCL,

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