Engineering Thermodynamics
The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that

Carnot cycle can't work with saturated steam
Heat is supplied to water at temperature below the maximum temperature of the cycle
Rankine cycle is hypothetical
A Rankine cycle receives heat at two places

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Engineering Thermodynamics
Mond gas is obtained by

Passing steam over incandescent coke
Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
Passing air and a large amount of steam over waste coal at about 650°C
Carbonisation of bituminous coal

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