Concentrate a naoh solution , Chemical Engineering

Assignment Help:

It is desired to concentrate a NaOH solution from 12.5 % to 40% in a double effect evaporator. 50,000 lb/hr of feed solution enters the evaporator at 120 oF, and steam at 15 psig is available for effecting the concentration. Vacuum in the 2nd effect is held at 24in. Hg, and water from a cooling tower is available at 85 oF. Estimate

(a) quantity of feed and water needs for the forward feed operation,

(b) quantity of feed and condenser water need for the backward feed operation,

(c) Surface need for the operation in (a), suppose U is 400 and 250 Btu/hr(ft2) (oF) for the first and second effect respectively. UD equal to 450 and 350 in two effects correspondingly.

 


Related Discussions:- Concentrate a naoh solution

Explain oxidation, Oxidation - Silicon has the unique ability to be oxidiz...

Oxidation - Silicon has the unique ability to be oxidized into silica, which produces a chemically stable, protective and insulating layer  on the surface of the wafer. The produc

Metallurgy, explain physical and chemical methods of extraction in detail?

explain physical and chemical methods of extraction in detail?

Polymers, merits and demerits of free radical

merits and demerits of free radical

#titleHardness of Water, Ask question #Minimum 100 words accepted.hardness ...

Ask question #Minimum 100 words accepted.hardness of bore water is less than that of sea water-justify

Bulk density, Bulk density: This is represented by the weight per unit vol...

Bulk density: This is represented by the weight per unit volume of the refractory of (g/cm 3 ). This volume includes the volume of the pores space, therefore, higher the bulk dens

Solvent extraction system, how to design Extractive or Extraction colum and...

how to design Extractive or Extraction colum and solvent dehydrating columns

Heat exchanger, discuss the importence of heat exchanger in chemical proces...

discuss the importence of heat exchanger in chemical process

find the entropy, For a substance explained by the van der Waals equation ...

For a substance explained by the van der Waals equation of state with a constant heat capacity CV : 1) Find the internal energy U(T, V ), relative to a reference state at some T

Explain contact printing, Contact Printing In contact printing, the res...

Contact Printing In contact printing, the resist-coated silicon wafer is bring into physical contact with the glass photo mask. The wafer is held on a vacuum chuck, and the ent

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd