(c) There are three types of conditions used for methanol manufacture: • high pressure: 250-300 atm; 300-450 oC using ZnO-Cr2O3 catalysts• medium pressure: 150 atm; 300 oC using ZnO-CuO catalysts• low pressure: 50 atm; 225 oC using Cu-ZnO-Al2O3 catalysts.Assume your industrial reactor has a feed of synthesis gas in the stoichiometric ratio 1 CO : 2 H2. Using your answers to (b), give your reasoning as to which of the three types of conditions you would recommend for operations. You must show all your calculations used to justify your decision.[HINT: Assume the gases obey Raoult’s law and that fugacity coefficients can be neglected.B) Assuming that the constant pressure heat capacities areindependent of temperature, use your answers to part (a) tocalculate the equilibrium constant for the reaction at 225, 300 and450 oC, at standard pressure. Comment on your results. My answers for B were as follow225C= 3.97x10^-7300=2.23x10^-8450=4.2x10^-10 Chemical thermodynamics in the manufacture of methanolMethanol (CH3OH) is used to manufacture a large number of importantchemicals, such as formaldehyde (HCHO) which is employed in themanufacture of a variety of polymers;((CH3),OCH3), which has been used as a lead-free anti-knocking agent inpetrol; acetic acid (CH;CO2H), etc. Annual production of methanol has beenincreasing: from 3.3 MTe/yr in 1982,' to 20 MTe/yr in 1991.2methyl-tertiary-butyletherMethanol is manufactured using synthesis gas (a mixture of carbon monoxide,co, and hydrogen, H2) through the following chemical equilibrium.co(x)+2H,(x)=CH,OH(8)Thermodynamic data (standard enthalpies of formation, AH, absoluteentropies, s°, and heat capacities (Cp) at 298 K) corresponding to the fivechemical species in the above chemical reactions are given in Table 1 below.Table 1: Thermodynamic quantities for thereacting gases involved in the manufacture of methanol.CplJ K mol"SpeciesCo(g)H2(g)CH;OH(g)AH /kJ molS'IJ mol K'-110.5197.729.10.0130.728.8-201.5239.843.9

Dear subscriber ,since you have given the answers to (B) , without part (a) , so, i am assuming ,you…

Answered: c) There are three types of conditions…

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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Question

(c) There are three types of conditions used for methanol manufacture: • high pressure: 250-300 atm; 300-450 oC using ZnO-Cr2O3 catalysts
• medium pressure: 150 atm; 300 oC using ZnO-CuO catalysts
• low pressure: 50 atm; 225 oC using Cu-ZnO-Al2O3 catalysts.

Assume your industrial reactor has a feed of synthesis gas in the stoichiometric ratio 1 CO : 2 H2. Using your answers to (b), give your reasoning as to which of the three types of conditions you would recommend for operations. You must show all your calculations used to justify your decision.

[HINT: Assume the gases obey Raoult’s law and that fugacity coefficients can be neglected.

B) Assuming that the constant pressure heat capacities are
independent of temperature, use your answers to part (a) to
calculate the equilibrium constant for the reaction at 225, 300 and
450 o
C, at standard pressure. Comment on your results. My answers for B were as follow

225C= 3.97x10^-7

300=2.23x10^-8

450=4.2x10^-10