FIELD: chemical reactors. SUBSTANCE: in reactor installation and method for contacting of reagent flow (A) with reagent flow (B) through the wall use is made of a construction of wavy heat-exchanging partitions with the aid of variation of the amount and/or waviness on partitions. The reactor installation and the method for the given invention may be used for reactor operation in isothermic or other conditions of monitored temperature. Variation of waviness inside one heat-exchanging section is very useful for maintaining the desired temperature profile in the installation, having a transverse flow of heat-transfer agent with respect to reagents. Variation of waviness eliminates or minimizes the approach to isothermic conditions by stages. EFFECT: enhanced efficiency. 34 cl, 16 dwg, 1 tbl
