You are designing a plug flow reactor that uses chlorine to destroy pathogens in water. You...
You are designing a plug flow reactor that uses chlorine to destroy pathogens in water. You want to reduce the pathogen concentration from 100 pathogens/L to below 1 pathogen/L through a first-order decay process with the constant decay rate of k = 0.15/ min. You plan on treating water at a rate of 1,000 gal/min. (a) What is the minimum contact time you need to achieve this reduction (in minutes)? And what is the minimum volume (in gallons) of the reactor required for a plug flow reactor to achieve this pathogen reduction? Note that residence time (contact time) = Volume/Flow. (b) What size (in gallons) of complete mixed flow reactor (CMFR) would be required to reach the same outlet concentration? (c) Explain why these two reactor volumes/sizes differ for the two different reactor types.
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You are designing a plug flow reactor that uses chlorine to
destroy pathogens in water. You...
1. A reactor system consists of a series arrangement of a plug flow reactor and a...
1. A reactor system consists of a series arrangement of a plug flow reactor and a mixed flow rector (continuous stirred tank reactor). The mixed flow reactor has 10 times the volume of the plug flow reactor. Assume the rate equation for the reaction that occurs is given by: r = 2.4 C2 where c is the concentration of the reacting species. The reaction occurs to 96% conversion. The inlet concentration of C is Cao1. You may assume the density...
1. A reactor system consists of a series arrangement of a plug flow reactor and a...
1. A reactor system consists of a series arrangement of a plug flow reactor and a mixed flow rector (continuous stirred tank reactor). The mixed flow reactor has 10 times the volume of the plug flow reactor. Assume the rate equation for the reaction that occurs is given by: r = 2.4 C2 where c is the concentration of the reacting species. The reaction occurs to 96% conversion. The inlet concentration of C is Cao1. You may assume the density...
Problem 3: Engineers suspect that soybeans keep getting stuck in the plug flow reactor for a...
Problem 3: Engineers suspect that soybeans keep getting stuck in the plug flow reactor for a much longer time than expected. A step change injection using a fluorescent dye was used to experimentally confirm this fact as well as the residence time distribution of the reactor. Draw a set of axis and plot the concentration of fluorescent dye versus time at the reactor inlet and at the reactor outlet.
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by...
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by (0,04 minT)CA - (0,01 min- 2.2. 2.3, Find the equilibrium conversion Find the actual conversion of A in the reactor We wish to achieve 97.5% of the equilibrium n by adding a CSTR in series with the plug flow reactor. What volume must the CSTR be in order to achieve this? TOTAL 20 MARKS Pure gaseous A at about 3 vanous Row rates. There...
3. Three CSTR's are to be used in series. The second reactor has a volume twice...
3. Three CSTR's are to be used in series. The second reactor has a volume twice that of the first and third reactors. The influent flow has a concentration of 150 mg/l of species A at 100 gal/min. The rate constant for the second order reaction is 0.007 l/mg-h. What is the mean residence time and volume in each reactor if 80% of A is converted in each reactor?
Your company assigns you to a new project with the goal of designing a continuous stirred...
Your company assigns you to a new project with the goal of designing a continuous stirred tank reactor (CSTR) to produce 100 million kglyr of ethylene glycol (EG) from ethylene oxide (EO) and water (W) using H2SO4 as the catalyst. The reaction is: EO W EG H2 но Two streams will be mixed and reacted in the CSTR: flow of 20 gmol/L of EO in Vw An equal volumetric flow rate of a solution of 9.0 g/L of H2SO4 in...
You are designing a sewage lagoon to accommodate an input flow of 0.1 m3/min. At steady-state,...
You are designing a sewage lagoon to accommodate an input flow of 0.1 m3/min. At steady-state, the effluent (also at 0.1 m3/min) from the lagoon must not exceed a BOD of 10 mg/L. Assume the lagoon is well mixed, that there are no additional inputs to the lagoon and that the BOD degrades with a reaction rate constant equal to 0.1 day-1. What is the volume of the lagoon needed to achieve the effluent BOD goal if the influent BOD...
Hi, can you please help me with F? I know that if the volume is the...
Hi, can you please help me
with F? I know that if the volume is the same, negative order
reactions would give PFR a higher yield, however, when I tried to
do it mathematically, the units won't match because of the rate
constant. I don't know how to prove that PFR would give a higher
yield. Can i use the same rate constant but with different
units?
3. Your boss asks you to isothermally carry out a liquid-phase, irreversible reaction...
We never learned this and I can’t find it in the textbook but the assignment is...
We
never learned this and I can’t find it in the textbook but the
assignment is still due. I could really use the help and a brief
explanation on how to go about this problem. Thank you
Homework 2 ENV 3006C 2018 1. A small sheep farm produces a waste flow of 10,000 gallons per day. The concentration of [TOC] total organic carbon is 600 mg/L. The flow is directed to a lagoon that aerated and mixed. The reaction rate...
For the table below, design an ion exchange system for the removal of calcium. The flow rate to be treated is 5.45 ML/d. The system should be sized so that the minimum time between regenerations is 72...
For the table below, design an ion exchange system for the removal of calcium. The flow rate to be treated is 5.45 ML/d. The system should be sized so that the minimum time between regenerations is 72 h. The column diameter should be 3 m and there should be at least 2 columns. Pilot testing indicates optimal regeneration efficiency corresponded to using 10% NaCl solution (specific gravity = 1.07) at a salt usage rate of 310 kg NaCl per m3...
1. A reactor system consists of a series arrangement of a plug flow reactor and a mixed flow rector (continuous stirred tank reactor). The mixed flow reactor has 10 times the volume of the plug flow reactor. Assume the rate equation for the reaction that occurs is given by: r = 2.4 C2 where c is the concentration of the reacting species. The reaction occurs to 96% conversion. The inlet concentration of C is Cao1. You may assume the density...
1. A reactor system consists of a series arrangement of a plug flow reactor and a mixed flow rector (continuous stirred tank reactor). The mixed flow reactor has 10 times the volume of the plug flow reactor. Assume the rate equation for the reaction that occurs is given by: r = 2.4 C2 where c is the concentration of the reacting species. The reaction occurs to 96% conversion. The inlet concentration of C is Cao1. You may assume the density...
Problem 3: Engineers suspect that soybeans keep getting stuck in the plug flow reactor for a much longer time than expected. A step change injection using a fluorescent dye was used to experimentally confirm this fact as well as the residence time distribution of the reactor. Draw a set of axis and plot the concentration of fluorescent dye versus time at the reactor inlet and at the reactor outlet.
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by (0,04 minT)CA - (0,01 min- 2.2. 2.3, Find the equilibrium conversion Find the actual conversion of A in the reactor We wish to achieve 97.5% of the equilibrium n by adding a CSTR in series with the plug flow reactor. What volume must the CSTR be in order to achieve this? TOTAL 20 MARKS Pure gaseous A at about 3 vanous Row rates. There...
3. Three CSTR's are to be used in series. The second reactor has a volume twice that of the first and third reactors. The influent flow has a concentration of 150 mg/l of species A at 100 gal/min. The rate constant for the second order reaction is 0.007 l/mg-h. What is the mean residence time and volume in each reactor if 80% of A is converted in each reactor?
Your company assigns you to a new project with the goal of designing a continuous stirred tank reactor (CSTR) to produce 100 million kglyr of ethylene glycol (EG) from ethylene oxide (EO) and water (W) using H2SO4 as the catalyst. The reaction is: EO W EG H2 но Two streams will be mixed and reacted in the CSTR: flow of 20 gmol/L of EO in Vw An equal volumetric flow rate of a solution of 9.0 g/L of H2SO4 in...
Hi, can you please help me
with F? I know that if the volume is the same, negative order
reactions would give PFR a higher yield, however, when I tried to
do it mathematically, the units won't match because of the rate
constant. I don't know how to prove that PFR would give a higher
yield. Can i use the same rate constant but with different
units?
3. Your boss asks you to isothermally carry out a liquid-phase, irreversible reaction...
We
never learned this and I can’t find it in the textbook but the
assignment is still due. I could really use the help and a brief
explanation on how to go about this problem. Thank you
Homework 2 ENV 3006C 2018 1. A small sheep farm produces a waste flow of 10,000 gallons per day. The concentration of [TOC] total organic carbon is 600 mg/L. The flow is directed to a lagoon that aerated and mixed. The reaction rate...
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