With all of the tools that pinch analysis provides, one of the most
important challenges before process engineers is to properly integrate pinch tools into
the conceptual process design phase. Decisions made in this phase of planning affect the
entire life cycle of a process facility. Using pinch technology tools and understanding
the process does not ensure the desired results. These tools must be applied at the right
point in the process design phase. Just as it would be incorrect to conduct a Pinch
Analysis after completion of the process design phase, wherein critical process parameters
have been fixed, it is just as incorrect to conduct a Pinch Analysis without direct
interaction with the process specialists and downstream engineering disciplines. It is
Pinch Technology's role to identify "what might be". However, input from other
engineering disciplines ultimately determines "what can be".
References:
General Process Improvements Through Pinch Technology
B. Linnhoff and G.T.Polley, Univ of Manchaster, U.K and V.Sahdev, Linnhoff March
Ltd., U.K.
Chemical Engineering Progress, June 1988
Pinch Technology Has Come of Age
B. Linnhoff, Univ of Manchaster, U.K, Don R.Vredeveld, Union Carbide Corp.
Chemical Engineering Progress, July 1984
Don't let the Pinch Pinch You
Polley G.T. & Heggs P.J.
Chemical Engineering Progress, December, 1999
Practical Process Integration - An Introduction to Pinch Technology
By Su Ahmad, Ph.D, Stephen G. Hall, Ph.D, Steve W. Morgan, and Stuart J. Parker,
Ph.D, Aspen Technology, Inc