4. A coal analyzing 65.4% C, 5.3% H, 0.6% S, 1.1% N, 18.5% O, and 9.1% ash is burned so that all combustible is burnt out of the ash. The flue gas analyzes 13.00% CO,, 0.76% CO, 6.17% O2, 0.87% H2, and 79.20% Ng. All of the sulfur burns to SO2, which is in- cluded in the CO, in the gas analysis (i.e., CO, + SO, 13.00%). Calculate: a. Pounds of coal fired per 100 lb mol of dry flue gas as analyzed; b. Ratio of moles of total combustion gases to moles of dry air supplied; c. Total moles of water vapor in the stack gas per 100 lb of coal if the entering air is dry;: d. Percent excess air.
4. A coal analyzing 65.4% C, 5.3% H, 0.6% S, 1.1% N, 18.5% O, and 9.1% ash is burned so that all combustible is burnt out of the ash. The flue gas analyzes 13.00% CO,, 0.76% CO, 6.17% O2, 0.87% H2, and 79.20% Ng. All of the sulfur burns to SO2, which is in- cluded in the CO, in the gas analysis (i.e., CO, + SO, 13.00%). Calculate: a. Pounds of coal fired per 100 lb mol of dry flue gas as analyzed; b. Ratio of moles of total combustion gases to moles of dry air supplied; c. Total moles of water vapor in the stack gas per 100 lb of coal if the entering air is dry;: d. Percent excess air.
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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Answer Letter D only. Thanks!
Transcribed Image Text:4. A coal analyzing 65.4% C, 5.3% H, 0.6% S, 1.1% N, 18.5% O, and 9.1% ash is burned so
that all combustible is burnt out of the ash. The flue gas analyzes 13.00% CO,, 0.76%
CO, 6.17% O,, 0.87% H2, and 79.20% N2. All of the sulfur burns to SO2, which is in-
cluded in the CO, in the gas analysis (i.e., CO, + SO, = 13.00%). Calculate:
a. Pounds of coal fired per 100 lb mol of dry flue gas as analyzed;
b. Ratio of moles of total combustion gases to moles of dry air supplied;
c. Total moles of water vapor in the stack gas per 100 lb of coal if the entering air is dry;
d. Percent excess air.
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