The reaction between ethylene and hydrogen bromide to form ethyl bromide is carried out in a continuous reactor (C₂H+HBr C H Br). The product stream is analyzed and found to ontain 42.24 mol % ethyl bromide and415.02 mol % HBr. The feed to the reactor contains only ethylene and HBr. Determine the %excess of the excess reactant.Type your answer in %, 2 decimal places.

Given Data The reaction happen in a continouse flow reactor given by :C2H4+HBr→C2H5Br------(1)The…

Answered: The reaction between ethylene and…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Consider 100 moles/s of a mixture of methanol and water containing 55 mole % methanol (Stream #1). A distillation column is available that could separate and recover a portion of methanol from the mixture stream. (Note: Stream #3 is pure methanol). The remaining water and methanol from the distillation column (Stream #4) is split into streams #5 and #6 where stream #6 is recycled and mixed with stream #1. (Note: there is no reaction). The distillation column has been designed so that 67% of the methanol in stream #2 is recovered in stream #3. a) Perform a degree of freedom analysis for each unit of the process and the total process (4 degree of freedom calculations in total). Clearly indicate what the unknowns are and what equations must be solved (not just the number of unknowns/equations). b) Calculate the unknown flowrates and compositions (mole%) and complete the summary table. 1 55% Methanol Mixer 45% water Distillation 4 3 5 10% Methanol Methanol 90% water Stream 1 Stream 2…
2. Ammonia reacts with oxygen to form nitric oxide and water: 4NH3 + 50₂ → 4NO + 6H₂O The fresh feed stream contains ammonia and oxygen, with the oxygen in 80.0% excess. The molar flow rate of the ammonia in the fresh feed stream is 200. mol/min. The conversion of the ammonia in the reactor is 65.0%. (a) Determine the number of degrees of freedom. Show your work. (b) Determine the molar flowrates of nitric oxide, oxygen, and water exiting the reactor. (c) To reduce the loss of the unreacted ammonia, the exit stream from the reactor is sent to a separation unit. Two streams leave the unit. One exit stream contains all of the ammonia and is recycled and combined with the fresh feed. The second exit (product) stream contains all of the nitric oxide, oxygen, and water. Draw the flowchart and label carefully. What is the overall conversion of the ammonia for this process? Is there sufficient oxygen in the fresh feed? Explain. What is the composition (mole fractions) of the nitric oxide,…
In a 1 L batch reactor, 1 mol/L carbonic acid decomposes into carbon dioxide and water at room temperature and atmospheric pressure. An online system of gas chromatography has recorded the concentration of carbonic acid, CA, carbon dioxide, CP and water, Cs over a period of time. + (5) 60 CA (mol/L) CP (mol/L) Cs (mol/L) 120 0.74 0.548 180 0.026 0.15 0.406 240 0 300 360 0.306 0.223 0.162 0.172 0.300 0.395 0.465 0.517 0.556 0.258 0.27 420 0.122 480 540 600 660 0.090 0.067 0.05 0.035 0.025 0.585 0.606 0.621 720 0.292 0.3 0.633 0.648 0.65 0.301 0.316 0.324 0.32 1. Write a possible chemical reaction equation and general rate law for this reaction. State the classification of this reaction. 2. The rate constant and reaction order of this decomposition reaction can be evaluated using a differential graphical analysis method. State the overall order of the reaction and compare the value of chemical reaction rate constant obtained from these two methods. 3. Express the rate law based on…
Q1. A gas stream contains nitrogen, hydrogen, and 0.2 mol% argon (Ar) as an impurity is fed to reactor (Fresh feed). Nitrogen and hydrogen are in stoichiometric proportion. If we do only recycling, then Ar concentration will build up and eventually shut down the reaction. To avoid this, we purge a portion of the recycle stream so that the level of Ar in the recycle stream is maintained at 7.0%. The reactor single pass fractional conversion is 0.25. Use atomic species balance to find the unknown. a) Based on the process description, draw, and label the flowchart of the process. : b) Perform a degree of freedom analysis of the overall process and all the sub-systems. Based on the proper degree of freedom analysis, state where to start the calculation. c) How much nitrogen is required to produce 245 kmol/h of ammonia? d) What are the flow rates of the recycle stream and purge stream?
11.4 mole dichloromethane (CH2Cl2) enter a reactor with 20.6 mole hydrogen (H2) and 38.6 mole oxygen (O2). The following reaction takes place: CH2Cl2 + H2 + 3/2 O2 → COCl2 + 2 H2O The extent of the reaction is 6.8. Calculate the mole of H2O that are produced.
Consider the pair of reactions in which ethylene is oxidized either to ethylene oxide (desired) or to carbon dioxide (undesired) in the furnace: C₂H4+0₂-C₂H4O C₂H₂ +30₂-2 CO₂ + 2H₂O The feed mixture and air are fed at a temperature To. All gaseous effluents are at temperature T emerging from the non-isothermal reactor. a) Calculate the number of degrees of freedom of the process. How would the answer differ if the reactor were adiabatic? b) Outline a manual calculation procedure to determine the compositions of all streams.
Methanol (CH3OH) and its derivative products are used as base materials in acrylic plastic, synthetic fabrics, adhesives, paints and as chemical agent in pharmaceuticals and agrichemicals. In petrochemical industry, one promising pathway to produce methanol is from conversion of syngas to methanol via hydrogenation of carbon dioxide and carbon monoxide. The reaction of this process is given as follows, CO + 2H2 → CH3OH (1) CO2 + H2 → CO + H20 (2) Suppose 1000 kmol/hr of syngas with molar composition of 22% CO2, 6.7% CO, 65% H2, 4.1% H20, 1.1% CH4 and 1.1% N2 is used as fresh feed. (a) Draw and label a complete process flow diagram of this process. (b) Calculate the amount of unreacted CO2 if given single pass conversion of CO2 is 14.2%. (c) Calculate the extent of reaction for the side reaction (2) and the amount of water produced. (d) If the selectivity of methanol to water is 92.1%, calculate the amount of methanol produced. (e) Determine mole fraction of CH3OH, CO2, CO, H2, H2O, CH4…
Ammonia is burned to form nitric oxide in the following reaction: 4NH3+5O2--->4NO+6H2O (a)if ammonia is fed to a continuous reactor at a rate of 157kn/h , what oxygen feed rate (kn/h) would correspond to 39% excess O2? Please put process or flow diagram.
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Q1
#3 The first step in the reaction sequence for the production of nitric acid via the oxidation of ammonia is: 4NH3 + 502 2 4NO + 6H2O 75% conversion is achieved with an equimolar mixture of ammonia and oxygen fed at the rate of 100 mol/h. Determine the outlet compositions. (Hint: determine the limiting reactant).
23°C, calculate the gas constant, R. (assume: PH202 Lab Section 4) Hydrogen peroxide decomposes spontaneously slowly to form water and oxygen gas according to the following chemical equation: 2 H2O2 () → 2 H,O (1)+ O2 (g) This decomposition can be sped up with the addition of a catalyst. If 198 mL of H2O2 decomposes and the amount of oxygen gas collected over water is 72.5 L at 756 mmHg and : 1.0으) mL %3D

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