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What is the temperature range of middle oil?(a) 50-80°C(b) 100-150°C(c) 140-180°C(d) 200-400°CI had been asked this question in an international level competition.The question is from Industrial Processes-III in section Hydrogenation of Unit Processes

Answer»

Right CHOICE is (d) 200-400°C

Explanation: A portion of this product BOILING in the range of about 200-400°C is commonly termed MIDDLE oil, and it may contain 10-20 per cent of phenol. Products boiling above the middle oil are recycled to the liquid-phase HYDROGENATION step.



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