Reactions of Benzene or Alkylbenzenes with Steam over a Silica-supported Nickel Catalyst
1972 Volume 14 Issue 1 Pages 54-63
Details
1972 Volume 14 Issue 1 Pages 54-63
Benzene-steam and alkylbenzenes-steam reactions over a silica-supported nickel catalyst have been studied under atmospheric pressure in a temperature range of 370∼430°C.
In the reaction of benzene-steam, the methane yield is lower and the carbon dioxide yield is higher than the estimated value. The reaction is zero order with respect to benzene and approximately first order with respect to steam.
In the reaction of alkylbenzenes-steam, ring breakdown and dealkylation occur at the initial stage of reaction, and the former occurs more easily than the latter at high conversion and at high temperature. The number and the position of the alkyl group on the benzene ring influence the reaction rate and the selectivity.
The reaction path of dealkylation is proposed as follows:
