A high grade semi-anthracite coal has a complete analysis of
85.86% C, 4.44% H, 2.7% O, 1.2% N, 5% ash and 0.8% S. Analysis of
the Residue shows 58% C and 42% ash. Air is
supplied dry at 30°C and 750mmHg. Partial orsat analysis of the
stack gas (400°C, 755mmHg) shows 8.05% CO2, 2.42% CO and
2.9%H2.Assume the S and N gasified burns to SO2 and NO
respectively. Calculate
a. % excess O2
b. Complete orsat analysis of stack gas...