Sulphur trioxide gas is obtained by the combustion of pyrites (FeS2) according to the following reaction: 4FES2 + 1502 2FE203 + 8S03 The reaction is accompanied by the following side reaction: 4FES2 + 1102 5Fe,03 + 8S02 Assume that 80% (weight) of the pyrites charged reacts to give sulphur trioxide and 20% reacts giving sulphur dioxide. a) How many kilograms pf pyrites charged will give 100 kg of SO3? b) How many kilograms of oxygen will be consumed in the reaction? Mwt: C3H6 = 42, NH3 = 17,02 = 32, C3H3N = 53, H20 = 18, N2 = 28, FeS2 = 120 %3D %3D %3D %3D Fe203 = 136, S03 = 80, SO2 = 64 %3D

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Chapter1: Introduction
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Sulphur trioxide gas is obtained by the combustion of pyrites (FeS2) according
to the following reaction:
4FES2 + 1502
2FE203 + 8S03
The reaction is accompanied by the following side reaction:
4FES2 + 1102
5Fe,03 + 8S02
Assume that 80% (weight) of the pyrites charged reacts to give sulphur trioxide
and 20% reacts giving sulphur dioxide.
a) How many kilograms pf pyrites charged will give 100 kg of S03?
b) How many kilograms of oxygen will be consumed in the reaction?
Mwt:
C3H6 = 42, NH3 = 17,02 = 32, C3H3N = 53, H20 = 18, N2 = 28, FeS,
= 120
%3D
%3D
Fe,03 = 136, S03 = 80, SO2 = 64
Transcribed Image Text:Sulphur trioxide gas is obtained by the combustion of pyrites (FeS2) according to the following reaction: 4FES2 + 1502 2FE203 + 8S03 The reaction is accompanied by the following side reaction: 4FES2 + 1102 5Fe,03 + 8S02 Assume that 80% (weight) of the pyrites charged reacts to give sulphur trioxide and 20% reacts giving sulphur dioxide. a) How many kilograms pf pyrites charged will give 100 kg of S03? b) How many kilograms of oxygen will be consumed in the reaction? Mwt: C3H6 = 42, NH3 = 17,02 = 32, C3H3N = 53, H20 = 18, N2 = 28, FeS, = 120 %3D %3D Fe,03 = 136, S03 = 80, SO2 = 64
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