In low temperature carbonisation of coal, the________________?
Correct answer: C. Temperature maintained is 700°C
- A. Yield of coke oven gas is 290 Nm3 /ton dry coal
- B. Volatile matter in coke is zero
- C. Temperature maintained is 700°C
- D. Yield of tar is about 3% of dry coal
Explanation
Low-temperature carbonisation is carried out roughly in the 500–700°C range, with about 700°C commonly used as its upper operating temperature. It produces tar-rich products, while the coke still retains some volatile matter.
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
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300°) may be reduced by about ______________ percent as compared to the use of atmospheric combustion air?
Coke made in narrower by-product coke ovens (as compared to wider ovens) is _____________________?
_____________ present in coal is not determined in its ultimate analysis ?
Which of the following is a single stage, fixed bed high pressure coal gasification process ?
Blast furnace gas constitutes mainly of_________________?
Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?