Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?
Correct answer: A. 15-30
- A. 15-30
- B. 1-2
- C. 70-100
- D. 150-200
Explanation
Raw blast-furnace gas carries roughly 15 to 30 g of dust per Nm³, mainly fine ore, coke and ash particles. Gas cleaning reduces this to below about 10 mg/Nm³ for safe downstream use.
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
Rate of low temperature oxidation of coal due to bad storage conditions_______________?
Which of the following is called "blue gas"?
Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?
When steam is passed over coal resulting in the endothermic reaction represent by, C + H2O = CO + H2, it is called the _______________ of coal?
Flue gas discharge velocity through chimney of a big thermal power plant may be around ________________ m/sec?
Bomb calorimeter is used for the determination of calorific value of the _____________ fuels?