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Coal has a heating value of 32.9582 MJ/kg, and analyzes 13.8% VCM, 74.6% FC, 8.6% ash, 1.2% S and no nitrogen. It enters a furnace with air supplied 50% in excess, at 25°C, 740 mmHg and 80% relative humidity. Refuse analysis shows 4% VCM, 40% FC and 56% ash. Molal ratio of CO to CO2 is 1:10 and H2 to CO is 1:4. The stack gas leaves at 300°C and 755 mmHg. Calculate the following: a) What is the amount of theoretical oxygen needed in mols? b) How much CO2 and CO is produced in mols? c) How much is 02 free in the stack gas in mols?

Coal has a heating value of 32.9582 MJ/kg, and analyzes 13.8% VCM, 74.6% FC, 8.6% ash, 1.2% S and no nitrogen. It enters a furnace with air supplied 50% in excess, at 25°C, 740 mmHg and 80% relative humidity. Refuse analysis shows 4% VCM, 40% FC and 56% ash. Molal ratio of CO to CO2 is 1:10 and H2 to CO is 1:4. The stack gas leaves at 300°C and 755 mmHg. Calculate the following: a) What is the amount of theoretical oxygen needed in mols? b) How much CO2 and CO is produced in mols? c) How much is 02 free in the stack gas in mols?

Introduction to Chemical Engineering Thermodynamics
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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Coal has a heating value of 32.9582 MJ/kg, and analyzes 13.8% VCM, 74.6% FC, 8.6% ash, 1.2% S and no nitrogen. It enters a furnace with air supplied 50% in excess, at 25°C, 740 mmHg and 80% relative humidity. Refuse analysis shows 4% VCM, 40% FC and 56% ash. Molal ratio of CO to CO2 is 1:10 and H2 to CO is 1:4. The stack gas leaves at 300°C and 755 mmHg. Calculate the following: a) What is the amount of theoretical oxygen needed in mols? b) How much CO2 and CO is produced in mols? c) How much is 02 free in the stack gas in mols?
Transcribed Image Text:Coal has a heating value of 32.9582 MJ/kg, and analyzes 13.8% VCM, 74.6% FC, 8.6% ash, 1.2% S and no nitrogen. It enters a furnace with air supplied 50% in excess, at 25°C, 740 mmHg and 80% relative humidity. Refuse analysis shows 4% VCM, 40% FC and 56% ash. Molal ratio of CO to CO2 is 1:10 and H2 to CO is 1:4. The stack gas leaves at 300°C and 755 mmHg. Calculate the following: a) What is the amount of theoretical oxygen needed in mols? b) How much CO2 and CO is produced in mols? c) How much is 02 free in the stack gas in mols?
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