Question

In the process of manufacturing of acetylene from hydrocarbon feed, what is the residence time in the furnace?

(a) 0.02-0.04 second

(b) 0.04-0.06 second

(c) 0.06-0.08 second

(d) 0.08-0.1 second

The question was asked during an interview for a job.

My enquiry is from Inorganic Chemical topic in portion Inorganic Chemical Industries of Chemical Technology

Answer 1

Correct choice is (a) 0.02-0.04 second

The explanation is: Better equilibrium yield is obtained at low-pressure 0.5-0.6 atmospheres by means of vacuum pumps after quench tower and residence time in the furnace is 0.02-0.04 second.