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Computer Automated Start-Up and Shutdown of an Air Separation Plant
Abstract
Process control computers have gained wide
acceptance within the chemical process industries.
Their application has, however, been predominantly
limited to processes which have already completed
start-up and have achieved reasonably steady
operating conditions. Recently, however,
inexpensive "time-of-day" electric power rates are
causing many companies to consider intermittent
operation; this has also provided the impetus for
computer automated start-up and shutdown.
Air Products and Chemicals, Inc. has
implemented a computer automated start-up and
shutdown program in an air separation plant.
Minimal operator intervention is required, but
where necessary the operator is directed via a
display on the CRT to take any necessary action.
The computer waits for the operators confirmation
of task completion before proceeding to the next
sequence. Start-up and shutdown times are as good
as the "best operators."
This paper discusses the scope of the project,
the method of implementatlon, the performance of
the system, the benefits achievable, and possible
extensions of this program.
Subject
Process Control ComputersComputer Automated Start-Up and Shutdown
Time-Of-Day Rates
Air Separation Plant
Collections
Citation
Russek, S. L.; Beckowski, T. M.; Vinson, D. R. (1985). Computer Automated Start-Up and Shutdown of an Air Separation Plant. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /93136.