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Technical & Practical

April 1, 2010

Mechanical Design Aspects for High-Performance Agitated Reactors

An understanding of the mechanical design helps in specifying, maintaining and revamping agitated reactor systems

M. Stadtaus, H.-J. Weiss, W. Himmelsbach and J. Smith, Ekato

The stirred tank reactor with rotating mixers remains the backbone of the chemical process industries (CPI). While mixing is considered a mature technology, it is clear that continued technological development is necessary to achieve the state-of-the-art design demanded by ever-increasing efficiency needs. As worldwide competition forces the CPI to increase the profitability of their production plants, it is even more important for process developers and plant design engineers to understand the mechanical design aspects of agitated reactors. Process design is often an interactive procedure of chemical and thermodynamic requirements on the one hand, and plant or mechanical restrictions on the other. Chemical and mechanical engineers work together to reach the common goal of optimum reactor design. And, this knowledge is also important for plant operators and maintenance engineers. Often there is a need to boost the plant capacity and process efficiency by revamps and modifications of the reactors. Only an awareness of the mechanical conditions in the existing reactor will prevent expensive failures....

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