METHOD FOR CARRYING OUT CHEMICAL REACTIONS IN A MICROREACTOR, AND SUCH A MICROREACTOR

摘要

Microreactors are especially characterized by a high selectivity and yield of the chemical reactions carried out therein. The large surface to volume relationship, however, also leads to large heat losses from the reaction area to the surrounding area during counter flow feeding of the educt and product streams, whereby the use of these microreactors is limited when carrying out chemical reactions at high temperatures. The aim of the invention is to minimize these heat losses. To this end, the method provides that the educt and production streams are fed in a spiral-like or radial manner to or from the reaction area (4) arranged in a central area of the microreactor (1). In at least one plane, the reaction area (4) is surrounded by the educt and product streams, said streams being guided toward one another in the counter stream, such that the yielded reaction heat is, to a large extent, fed to the reaction area again. As a result, the area of application of the microreactors is decisively expanded with regard to reactions carried out a high temperatures. The invention also relates to a corresponding microreactor in various designs.