CHE 501 Assignment 6

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

• Homework Help
• 2

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

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

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

• Spring '14
• DBarkey

{[ snackBarMessage ]}

What students are saying

• 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.

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

• 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.

Dana University of Pennsylvania ‘17, Course Hero Intern

• 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.

Jill Tulane University ‘16, Course Hero Intern