Patent ID: 7531146
Filing Date: 2009-05-12
Classification: B01J,C01B,C01C,C07C,Y02P

Abstract:
1. Synthesis furnace ( 1 ) having a furnace chamber ( 3 ) surrounded by a circumferential furnace wall ( 2 ), in which a plurality of burners ( 5 ) disposed essentially in one plane, with burner exit direction directed downward, whereby at least the outer burners ( 5 ) disposed in the region of the furnace wall ( 2 ) have a burner exit direction (R) that is inclined relative to the vertical, leading away from the center of the furnace, and in which a plurality of reaction tubes ( 4 ) disposed essentially vertically and parallel to one another are disposed, the reaction tubes being heated from the outside, by means of the firing burners ( 5 ), wherein the incline of the burner exit directions (R) of the individual burner rows is different, and wherein the incline of the burner exit directions (R) of the burner rows increases toward the outside, toward the furnace wall (