Method and apparatus for carrying out endothermic reactions

Abstract

The present invention relates to a method for carrying out endothermic reactions comprising the method steps of: a) externally heating at least two reaction tubes (5), wherein the reaction tubes (5) have been arranged vertically in a heating chamber (3) and each of the reaction tubes (5) has been at least partially packed with a fluidizable material, b) introducing at least one gaseous reactant (R) into the reaction tubes (5), c) forming a fluidized bed (7) in the reaction tubes (5), d) carrying out the endothermic reaction in the reaction tubes (5) at a first temperature (T1) and a first pressure (P1), wherein the reaction volume has been distributed over at least two of the reaction tubes (5), and e) discharging the reaction product (P) from the reaction tubes (5). The present invention further relates to an apparatus (1) for carrying out endothermic reactions comprising at least one heating chamber (3), at least two reaction tubes (5), wherein the reaction tubes (5) have been arranged vertically in the heating chamber (3) and each of the reaction tubes (5) comprises an at least partial packing of a fluidizable material, at least one entry point (9) for gaseous reactants (R) for each reaction tube (5), at least one exit point (11) for reaction products (P) for each reaction tube (5) and at least one heating apparatus (13) for externally heating the reaction tubes (5). The present invention further provides for the use of the apparatus (1) according to the invention for the non-oxidative dehydroaromatization of C1 to C4 aliphatics.

Dependencies are inferred from the claim text.