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Plant Design and Economics for Chemical Engineers, 5/e
Max S. Peters, University of Colorado
Klaus Timmerhaus, University of Colorado, Boulder
Ronald E. West, University of Colorado, Boulder

Process Design Development

Chapter Overview

P rocess design can provide chemical engineers with probably the most creative activity enjoyed by the engineering profession. There are many opportunities to come up with imaginative new processes or the introduction of changes that can positively alter existing processes. Chemical engineers in process design face challenges in creating ingenious and often complex flowsheets for new or revised processes. In this task they will make many design decisions that can affect the success or failure of a process design. Without a doubt, process design is rarely straightforward or routine. Rather, such developments involve innovative approaches to entirely new processes or revisions to existing processes that are more profitable, better controlled, operationally safe, as well as environmentally sound.

This chapter will review in greater detail some of the principal steps, as outlined earlier in Table 1-1, that are followed in designing and retrofitting chemical and biochemical processes. Anumber of these steps will be highlighted in an abbreviated form with the development of a preliminary process design. The design examines a practical problem of the type frequently encountered within the chemical industry, one which involves both process design and economic considerations.