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chemical engineering fuels and combustion
1. A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the
(A): high sulphur content in the fuel.
(B): lack of thorough mixing of fuel with air.
(C): low calorific value of the fuel.
(D): presence of large quantity of hydrogen in the fuel.
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