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Dimethyl ether synthesis from methanol over diatomite catalyst modified using nitric acid treatment
Author(s)
Date Issued
August 2, 2016
Type
Article
Abstract
Dimethyl ether synthesis from methanol over diatomite catalysts modified using nitric acid was investigated. The catalytic performance of diatomite was tested in a fixed-bed reactor under atmospheric pressure and within the temperature range of 250–350°C. It was discovered that high acidity of the catalyst yielded a higher methanol conversion rate. Moreover, it was revealed that the acidity of the catalyst surface was controlled by Al(IV) ions whereas basicity of the catalyst surface was determined by Al(V) and Al(VI) ions. From this finding, the authors were able to propose the mechanism of DME synthesis from methanol over treated diatomite.
Citation
Energy Sources Part A Recovery Utilization and Environmental Effects, 38(15), 2244-2249, 2016