Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Please answer Product flow and Recycle Comp. Degrees of freedom are correct. You are tasked with separating a stream containing 40.0 mole percent ethane and
Please answer Product flow and Recycle Comp. Degrees of freedom are correct.
You are tasked with separating a stream containing 40.0 mole percent ethane and the remainder methane into a product that contains 96.0 mole percent methane. To accomplish this, you intend on using distillation and taking advantage of the different relative volatility of the components. The fresh feed stream enters the process with a molar flow rate of 100.0 gmol/min. The first column achieves a separation with an overhead product containing 95.0 mole percent methane and a bottoms product containing 98.0 mole percent ethane. The overhead product from the first column is fed to a second distillation column. The bottoms product from the first column is a secondary product of the process. The overhead product from the second column is the desired product. The bottoms from the second column has a flow rate of 100.0 gmol/min and is recycled back to the first column. Draw and label a flow sheet for the problem. Calculate the number of degrees of freedom corresponding to each of the following systems. Assume that no information other than that given in the problem statement is available for each degree-of-freedom analysis. System Degrees of Freedom Overall System 0 Mixing Point for Fresh Feed and Recycle 1 Column 1 2 Column 2 1 Mixing Point and Column 1 1 Column 1 and Column 2 Product Flow Rate What is the flow rate of the product stream containing 96.0 mol% methane? 1 mol/min Save for Later Attempts Recycle Composition What is the mole fraction of methane in the recycle stream? POStep by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started