The reaction A -> 2B + C takes place in a catalytic reactor (diagram is given below). The reactor effluent is sent to a separator. The overallconversion of A is 95%. The product stream from the separator consists of B, C and 0.5% of A entering the separator, while the recycle streamconsists of the remainder of the unreacted A and 1% of B entering the separator. Calculate thea. single pass conversion of A in the reactorb. molar ratio of recycle to feed.FeedPure AReactorA 2B + CRecycle streamA and BProduct streamA, B and CSeparator

The catalytic reactor facilitates the conversion of reactant A into products B and C as per the…

Answered: The reaction A -> 2B + C takes place in…

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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Problem 2. Sulfur dioxide may be converted to SO3, which is useful in the production of sulfuric acid. A gas stream of 10.0 mol % SO₂, 9.0 mol % O₂, and the balance nitrogen gas is passed through a two-stage reaction process. The fractional conversion of SO₂ to SO3 in the single pass through the first reactor is 75%, and in one pass through the second reactor the fractional conversion is 65%. To boost the overall conversion of the entire process to 95%, some of the exit gas from the second reactor is recycled back to the inlet of the second reactor. Sketch the block flow diagram for the above process. If 100 gmol/hr is fed to the first reactor, what is the molar flow rate and composition of this recycle stream? If all reactions take place at 500 °C and 1 atm, what is the volumetric flow rate of the recycle stream? (A couple hints: Just do everything in terms of molar flow rates, then apply the ideal gas law at the very end. In your work, you may find no unit has zero DOF at first. So,…
4. Methanol is to be produced through a tandem reactor-condenser process as shown below. The Fresh Feed (F) contains 0.500% mole inert material. The gaseous feed (A) to the reactor, with 20.0% of CO,. 75% H₂. and the balance of inert material, undergoes a single pass limiting-reactant conversion of 80%. The products (B) are fed into a condenser where all the methanol and water (C) are separated from the gaseous components and inert material (D). A portion of stream D is returned (R) into the reactor, while the rest is purged (P). **20.0% CO2, 75% H2 F R CO2+3H2-> CH3OH+H20 CO+ 3H₂CH₂OH + H₂O A Reactor B D Condenser (a) Calculate the molar compositions of all the streams (A, B, C, D, F, P. R). (b) What is the recycle (R) to fresh feed (F) ratio (mol/mol)? (c) What is the production rate of methanol in mol CH OH per mol fresh feed?
The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO, + 8H* → 3Cu²* (aq) + 4H2O+ 2NO 2. Cu (aq) + 20Н (аq) —> Сu(ОН),(s) 3. Cu(OH),(s) –→ CuO(s) + H2O 4. CuO(s) + 2H → Cu²* (aq) + H2O 5. Cu* (aq) + Zn(s) → Zn²*(aq) + Cu(s) 2+ 2+ 2+ cycle reactions. amount of reagents, present answers to the following questions. Assume that you wa carry out a sequence ord use the right Question 1 Question 2 Question 3 How many grams of zinc metal are needed to completely regenerate 1.19 g of copper in the fifth step in the cycle? By how much is zinc oxidized in the fifth reaction?
Normal butane is catalytically isomerized to isobutane. A fresh feed stream containing pure n-butane at temperature T, is mixed adiabatically with a recycle stream containing n-butane and isobutane, and the combined stream is fed to the reactor, where some but not all of the n-butane in the feed is converted. The reactor effluent is pumped to a distillation column. The overhead distillation product contains primarily isobutane and a small amount of n-butane. The bottoms product, which also contains both species, is the stream recycled to the reactor. The streams leaving the distillation column are at different temperatures. a) Determine the number of degrees of freedom associated with the feed mixer, the reactor, the distillation column, and the entire process. Include all unknown process stream temperatures and process unit heat duties in your analysis. b) Suppose a single-pass conversion of 35.0% is attained in the reactor, the overhead distillation column product contains 88.5 mole…
A → R; CAO = 1 mol / liter The decomposition reaction of component A takes place in a batch reactor. At the end of the first hour of the reaction, 75% conversion is reached and at the end of 2 hours the conversion is completed (100% conversion). Derive the rate expression that describes the kinetics of this reaction.
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Problem 3 Dibutyl phthalate (diester) is produced in a CSTR operated isothermally at 112°C. The rate of formation of the di-ester from phthalic anhydride and butanol being very fast, the controlling step, in the presence of sulphuric acid catalyst, is the conversion of mono-ester to the diester. The liquid phase reaction is: СЫН.(СООCН:)CООН + CН,ОН A C6H4(COOC4H6)2 + H2O D B The rate of the reaction is given by the expression -TA = kC; gmol/L.h where CA is the concentration of the mono-ester in gmol/L. The value of the apparent rate constant is given by: k = 0.7628 x 10ol1.965- L/gmol.h where T is the reaction temperature in K. The initial concentration of the mono-ester is 2.84 gmol/L and the density of the reaction mixture is 0.984 kg/L. (Molar mass of diester = 278) 1. In an existing plant consisting of a CSTR of 1.1 m diameter and 1.6 m height, the volumetric feed rate is 10 L/min. (a) Find the conversion achieved in an ideal CSTR. (b) If the conversion achieved in practice 68.5%…
Problem 1-2 (Level 2) A continuous reactor operating at a steady state is being used to study the formation of methanol (CH30H) from mixtures of H2 and CO according to the reaction CO +2 H2 -------> CH3 OH Some data from one particular run are shown below
when acetone is heated in the gas phase, decomposition into ketene and methane takes place according to: (CH3)2CO > CH2-CO + CH4 the reaction is irreversible and first order. The rate constant is 1.047 s-1 vid 725 C. Calculate the turnover of acetone obtained in an isothermal and isobaric tube reactor under the following operating conditions. The reactor is made up of 20 parallel connected tubes, each with a length of 10 meters and an inner diameter of 10 cm. The working pressure is 4 atm and the temperature is 725 C. The acetone supply amounts to 120 mol/s.
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2. For the combustion of ethanol with air, the reaction proceeds according to the unbalanced reaction below: C₂H6O + O₂ => CO₂ + H₂O An air stream is fed to a reactor to provide oxygen. The reactor operates at steady state, and all reactants and products are gaseous phase. All left over reactants and created products leave the reactor in a single stream. The oxygen is supplied in excess by 10%, and the fractional conversion of the ethanol is 75%. Calculate the mole fraction of ethanol in the outlet stream.
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