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- W767062045 abstract "The chemical processing of binary mixtures ofbenzene and acetylene with ammonia or carbon monoxide has beenstudied in the continuous flow microwave discharge reactor at2450 MHz. The microwave discharge was modelled as aCSTR reactor, and the volume was assumed to be proportional to thepower absorbed. Reynolds numbers in the lamina region werecalculated for the gas flows in the silica reactor tube.The operating variables investigated werereactant ratios, reactor pressures, the effect of nickel in thedischarge zone, flowrate through the reactor and the power absorption.Two microwave cavities were used.No reaction occurred in either of the carbonmonoxide binary systems. The prime product of the reaction betweenbenzene or acetylene with ammonia was hydrogen cyanide. No reactionor decomposition occurred below a critical mole ratio.in eithersystem. Hydrogen and nitrogen were also formed on reaction in bothsystems together with small quantities of polymer. Acetylene,butadiene and aniline were also formed in the benzene/ammonia system.No azo-benzenes were produced. The selectivity of the hydrogen cyanideformation was ~ 90% in the acetylene/ammonia system and ~ 50% in the.benzene/ammonia system. The maximum yield of hydrogen cyanide was·27.5 gm/kW.h in the acetylene/ammonia system and 35.0 gm/kW.h in thebenzene/ammonia system. The rate of production of hydrogen cyanidewas found to have an order of 1.5 with respect to the acetylene and uammoniain the acetylene/ammonia system in one set of experimentalruns and was zero order with respect to the benzene and ammonia inthe benzene/ammonia system, The values of the rate constants weredependent upon the cavity and the power absorbed.Comparison with other discharge processesindicates that increased frequency increases the production of hydrogen cyanide.In conclusion it was proposed that as thedifference in ionization potential between the two compounds in thebinary mixture increases it becomes progressively more difficult forreactive species to be produced in the microwave discharge, Thiswas thought likely to be due to a change in the electron energydistribution in the microwave discharge ." @default.
- W767062045 created "2016-06-24" @default.
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- W767062045 date "1973-01-01" @default.
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- W767062045 title "Chemical processing of binary mixtures in a continuous flow microwave discharge reactor" @default.
- W767062045 hasPublicationYear "1973" @default.
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