Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
154225 | Chemical Engineering Journal | 2006 | 6 Pages |
Abstract
A process for producing dimethyl carbonate (DMC) from methanol and urea, using polyphosphoric acid (PPA) as the catalyst, has been carried out by conducting the reaction continuously under reactive rectifying conditions on a laboratory scale. Several operational variables which have an influence on the yield of DMC, such as the total feed flow rate, bottom temperature, pressure, reflux ratio, mass ratio of the reactants, the concentration of the catalyst and the stirring speed, were investigated to achieve an optimum operation. Under these optimized settings, the highest yield of DMC obtained was 92.2%. A high concentration and purity of DMC in the overhead products, more than 17%, was gained in the reactive rectifying conditions.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Xiaoping Wang, Bolun Yang, Dongpeng Wang, Xiaowei Zhai,