A sulfur bumer, burning sulfur of 98% purity with dry air, discharged gas at 1300°F containing 16% SO2, 5% O2, and 79% Na. Both the sulfur and the air supplied are at 80°F. The heat of combustion of sulfur to SO, is 127690 BTU/Ibmole at 25°C. The burner gas is mixed with more dry air (secondary air) and passed through a converter. Analysis of the converter gas shows 4.2% SO2, 7.5% Oz and 88.3% Na. An absorber subsequently removes 95% of the SOs in the converter gas by absorbing it in 97% H,SO, to produce 100% H,SO. solution. No SOs is formed in the absorber. a. Calculate the volume of secondary air supplied at 80°F and 735 mmHg per 100 lbs impure sulfur entering. b. How many pounds of 97% HaSO. solution must be supplied per mole of SO3-free converter gas?
A sulfur bumer, burning sulfur of 98% purity with dry air, discharged gas at 1300°F containing 16% SO2, 5% O2, and 79% Na. Both the sulfur and the air supplied are at 80°F. The heat of combustion of sulfur to SO, is 127690 BTU/Ibmole at 25°C. The burner gas is mixed with more dry air (secondary air) and passed through a converter. Analysis of the converter gas shows 4.2% SO2, 7.5% Oz and 88.3% Na. An absorber subsequently removes 95% of the SOs in the converter gas by absorbing it in 97% H,SO, to produce 100% H,SO. solution. No SOs is formed in the absorber. a. Calculate the volume of secondary air supplied at 80°F and 735 mmHg per 100 lbs impure sulfur entering. b. How many pounds of 97% HaSO. solution must be supplied per mole of SO3-free converter gas?
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
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Transcribed Image Text:A sulfur bumer, burning sulfur of 98% purity with dry air, discharged gas at 1300°F containing
16% SO2, 5% O2, and 79% Na. Both the sulfur and the air supplied are at 80°F. The heat of
combustion of sulfur to SO, is 127690 BTU/Ibmole at 25°C. The burner gas is mixed with more
dry air (secondary air) and passed through a converter. Analysis of the converter gas shows
4.2% SO2, 7.5% Oz and 88.3% Na. An absorber subsequently removes 95% of the SOs in the
converter gas by absorbing it in 97% H,SO, to produce 100% H,SO. solution. No SOs is formed
in the absorber.
a. Calculate the volume of secondary air supplied at 80°F and 735 mmHg per 100 lbs
impure sulfur entering.
b. How many pounds of 97% HaSO. solution must be supplied per mole of SO3-free
converter gas?
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