Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of_________________?
Correct answer: C. Blast furnace gas with air
- A. Furnace oil with air
- B. Furnace oil with oxygen
- C. Blast furnace gas with air
- D. Blast furnace gas with oxygen
Explanation
Blast-furnace gas contains large amounts of inert nitrogen and other diluents, so burning it with air produces a large flue-gas mass and heat loss at 600°C. Oxygen firing greatly reduces this nitrogen load, making option c the maximum-loss case.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Which of the following is not an additive for flue gases from furnace to reduce its dewpoint ?
The function of an economiser in a boiler is to preheat the _____________________?
Which of the following furnaces will have maximum thermal efficiency ?
Fuel economy in an industrial furnace operation cannot be achieved by the use of__________________?
Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?
_____________ atmosphere is maintained inside an iron blast furnace?