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Question no. 9324

Coke oven gas serves as a superior fuel compared to blast furnace gas because of its elevated________________?

Select your answer for: Coke oven gas serves as a superior fuel compared to blast furnace gas because of its elevated________________?
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Answer: D. All A., B. and C.

Explanation

Coke oven gas features a significantly higher calorific value compared to lean blast furnace gas. The clean burning nature of coke oven gas reduces maintenance requirements in sensitive heating applications. A low specific gravity results in a lighter gas, which substantially lowers pipeline distribution energy costs. Calorific value quantifies the total thermal energy released when a specific quantity of fuel is burned. Gas cleanliness refers to the minimal presence of dust, tar, and sulfur impurities in the fuel. Specific gravity dictates how easily a gas flows through distribution networks without excessive booster pressure.

Integrated steel plants utilize byproduct gases as valuable internal energy sources for various heating processes. Selecting superior fuel gases improves thermal efficiency and extends the operational lifespan of industrial furnaces. Optimizing fuel distribution economics is crucial for maintaining competitive manufacturing costs in heavy industry. Option A is correct but incomplete because it omits flame temperature and heat release rate advantages. Option B is correct but incomplete because it misses the calorific value and cleanliness benefits. Option C is correct but incomplete because it fails to mention calorific value and distribution economics.

Subject
Engineering
Topic
—
Difficulty
medium

Related questions

Q1. Compared to blast furnace gas, coke oven gas is________________?

Select your answer for: Compared to blast furnace gas, coke oven gas is________________?
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Answer: D. All A., B. and C.

Coke oven gas has a high hydrogen and methane content, making it lighter than blast furnace gas. The elevated concentration of volatile flammable components makes coke oven gas much more explosive and inflammable. Higher...

Q2. The Critical Air Blast (CAB) metric for coke provides a direct indication of its__________________?

Select your answer for: The Critical Air Blast (CAB) metric for coke provides a direct indication of its__________________?
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Answer: A. Reactivity

Critical Air Blast measures how easily coke reacts with an oxygen-bearing gas stream. A lower CAB value indicates higher chemical reactivity towards oxidizing agents. Standardized airflow tests quantify the gasification...

Q3. Evaluating fuel combustion efficiency involves analyzing the ______________ of the flue gas?

Select your answer for: Evaluating fuel combustion efficiency involves analyzing the ______________ of the flue gas?
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Answer: B. % of O2in

Measuring the residual oxygen percentage in flue gas is the primary diagnostic method for evaluating combustion efficiency. Excess oxygen levels indicate whether too much or too little air is supplied to the combustion c...

Q4. Proper and efficient combustion of anthracite coal demands______________________?

Select your answer for: Proper and efficient combustion of anthracite coal demands______________________?
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Answer: B. Fine grinding

Anthracite coal possesses low volatile matter content, making it exceptionally difficult to ignite and burn. Fine grinding and pulverization ensure a massive surface area is exposed to oxygen for complete combustion. Ade...

Q5. Coals classified as 'fat coals' are characterized by exceptionally high____________________?

Select your answer for: Coals classified as 'fat coals' are characterized by exceptionally high____________________?
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Answer: A. Caking capacity

Fat coals possess exceptional caking capacity that binds weaker coals together securely. Their plastic mass flows easily and forms strong bridges between carbon particles. This high agglutinating power is the primary rea...

Q6. Thick white smoke issuing from a thermal power plant chimney points to the use of__________________?

Select your answer for: Thick white smoke issuing from a thermal power plant chimney points to the use of__________________?
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Answer: C. Too much air for combustion

Excessive combustion air introduces unheated ballast gas that cools the flue gas temperature significantly. Lower flue gas temperatures cause moisture to condense into tiny droplets, forming visible thick white smoke. Su...

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