The preparation process of copper based catalysts, catalysts so prepared and production process of ethyl acetate from ethanol.

摘要

"The process of preparation of catalysts based on copper catalysts thus prepared and process of production of ethyl acetate from ethanol.It is described a process for preparing catalysts based on copper supported on zirconia, useful for the production of ethyl acetate from ethanol.The catalysts of the invention have an increased conversion assintu00e1tica ethanol ethyl acetate with the increase of the concentration of the species of copper oxide is reduced in low temperature.The process of obtaining ethyl acetate comprises directing a stream (2) of ethanol fresh for a reactor (7) loaded with the catalyst of the invention.Under the reaction conditions at temperatures between 180 and 360 C 198 198 C, the pressure between 1 and 2 atmospheres and factor of residence time 100 to 200 kg - catatalisador.Min / kg ethanol, obtaining a stream (8) of the product at the outlet of the reactor (7) which is cooled in a heat exchanger system (9), where it is separated the liquid product, and the product gas stream (18).The current (10). The current (10) mainly produces acetaldehyde, the current (16) and a hydrogen stream (14), which can be recycled to the reactor (7).Acetaldehyde may alternatively be stored in the tank (17).The liquid stream (18) containing the desired products and sub products are refined in (19) and the ethyl acetate product is stored in the tank (21).While the current of by-products is directed to the tank (23).