EXAMIANS
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker.
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Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.
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By-products are __________ recovered in 'Beehive ovens'.
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With increase in moisture content of coal, its
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Main use of hard coke produced by high temperature carbonisation is in the
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Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because
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A sample of natural gas containing 80% methane (CH₄) and rest nitrogen (N₂) is burnt with 20% excess air. With 80% of the combustibles producing CO₂ and the reminder going to CO, the Orsat analysis in volume percent is
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In flue gas analysis by Orsat's apparatus, carbon monoxide is absorbed by
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Flue gas from the heating chamber of byproduct coke ovens is removed by
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Sulphur in metallurgical coal
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