CHE 501 Assignment 6 - ChE 501 Fall 2016 HW Assignment 6...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ChE 501 Fall 2016 HW Assignment 6 Solution 1. A solution of 25.0 wt% Sodium Sulfate in water is to be added to a mixer with a stream of pure water and diluted to 15.0 wt%. Find the required flow-rate of water. Stream 1 Stream 3 m1 kglh m3 kg/h 0.35 kg NaOHI kg 0.15 kg NaOH/kg Stream 2 mg kg Water/h No flow-rate is given. Take as a basis 100 kg/h of feed solution. Find mg for this basis. NaSO4 balance: 0.25(100) = 0.15m3 o. 15 Total Mass balance: 100 + m2 = 167 m2 =67 2. A stream of water containing a solute A at a concentration of 33. 4 wt% kg- -A/kg enters an extraction unit at a rate of 135 kg/h. A stream of pure solvent S enters the unit at a rate of 750 kg/h. In the unit, some of the A leaves the water stream and enters the ’svae'rit stream. A stream of water with some A and a stream of solvent with some A leave the unit. The ratio of the mass fraction of A in the solvent stream to the mass fraction of A in the water stream is 5.75. Set up and solve the problem according to the procedure in section 4.3e. Draw and label a flow diagram. . - . “1.. ChE 501 Fall 2016 HW Assignment 6 Solution 1. A solution of 25.0 wt% Sodium Sulfate in water is to be added to a mixer with a stream of pure water and diluted to 15.0 wt%. Find the required flow—rate of water. Stream 3 m1 kg/h m3 kglh 0.35 kg NaOHI kg 0.15 kg NaOHlkg Stream 2 mg kg Water/h No flow-rate is given. Take as a basis 100 kg/h of feed solution. Find mg for this basis. NaSO4 balance: 025(100) = 0.15m3 0.15 Total Mass balance: 100 + m2 = 167 I712 =67 2. A stream of water containing a solute A at a concentration of 33. 4 wt% kg -A/kg enters an extraction unit at a rate of 135 kg/h. A stream of pure solvent S enters the unit at a rate of 75.0 kg/h. In the unit, some of the A leaves the water stream and entérsflfhé svaerit stream. A stream of water with some A and a stream of solvent with some A leave the unit. The ratio of the mass fraction of A in the solvent stream to the mass fraction of A in the water stream is 5.75. Set up and solve the problem according to the procedure in section 4.3e. Draw and label a flow diagram. ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern