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Type: Artigo de periódico
Author: FILHO, RM
Abstract: Conventional multitubular reactors (MTR) are designed with baffles to promote cross flow. They may be operated either co- or counter-currently but neither of these give the highest performance because it is not possible to ensure the best temperature distribution throughout the system. This work considers two alternative reactor configurations to try to overcome this so as to minimize production of by-products. One is based on the use of co-current cooling in the inlet zone with counter-current flow at the exit where the reaction rates are lower. Such an arrangement makes it possible to match the temperature distribution to reactant feed conditions so that there is a consistent selective conversion in each of the tubes. An alternative is to use a windowless baffled reactor, with multi-feed of the coolant. This enables close control of the temperature profile along the reactor length to be achieved by controlling the coolant conditions in each chamber, together with flow rate. Both arrangements enable very high performance in terms of selectivity with minimum waste production.
Country: Inglaterra
Editor: Inst Chemical Engineers
Rights: fechado
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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