2. A high volatile A bituminous coal analyzing 73.77% C, 5.23% H, 10% O, 1.4% N, 8.1% ash, 3.9% M and 1.5% S is burned in a furnace together with 45% excess air supplied saturated with water vapor at 25 °C and 1 atm. Analysis of the wetted Residue shows 16% VCM, 23.55% FC, 32.48% ash and 27.97% H20. The stack gases leave at 300 °C,745 torrs with a CO to CO2 ratio of 0.12. Neglect N and S in the combustion calculation. Calculate: a) %C and CV lost in the Residue (11.18) b) Type of combustible in the Residue (Uncoked coal) c) Orsat analysis of stack gas (10.01% CO2 , 1.2% CO)
2. A high volatile A bituminous coal analyzing 73.77% C, 5.23% H, 10% O, 1.4% N, 8.1% ash, 3.9% M and 1.5% S is burned in a furnace together with 45% excess air supplied saturated with water vapor at 25 °C and 1 atm. Analysis of the wetted Residue shows 16% VCM, 23.55% FC, 32.48% ash and 27.97% H20. The stack gases leave at 300 °C,745 torrs with a CO to CO2 ratio of 0.12. Neglect N and S in the combustion calculation. Calculate: a) %C and CV lost in the Residue (11.18) b) Type of combustible in the Residue (Uncoked coal) c) Orsat analysis of stack gas (10.01% CO2 , 1.2% CO)
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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Transcribed Image Text:2. A high volatile A bituminous coal analyzing 73.77% C, 5.23% H, 10% O, 1.4% N, 8.1% ash,
3.9% M and 1.5% S is burned in a furnace together with 45% excess air supplied saturated
with water vapor at 25 °C and 1 atm. Analysis of the wetted Residue shows 16% VCM,
23.55% FC, 32.48% ash and 27.97% H2O. The stack gases leave at 300 °C , 745 torrs with a
CO to CO, ratio of 0.12. Neglect N and S in the combustion calculation. Calculate:
a) %C and CV lost in the Residue (11.18)
b) Type of combustible in the Residue (Uncoked coal)
c) Orsat analysis of stack gas (10.01% CO2 , 1.2% CO)
d) m' SG/kg coal
e) % CV lost due to CO and Sensible heat (5.38 , 15.09)
(25.25)
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