The need for process analyzers in chemical industry came
from the introduction of computer control in chemical manufacturing. Such control needs
analytical systems that give rapid and reliable results.
The initial cost of such a
system is comparable to laboratory instrumentation. However, the operating costs are lower
and increased value of the data comes from being of appropriate accuracy, reliable and
timely results.
The role of process
analyzers in process control systems is real and important one. The main justification for
installing process analyzers is their major contribution to efficient and effective
process control and optimization. With process optimization control it is even more
important to know the initial, intermediate and final quality parameters of process
streams.
Chloro-Alkali industry is a
typical example of chemical manufacturing, where on-line analysis has a significant impact
on the performance and operation costs of plant. One of the biggest challenges is to
control the hardness (Ca/Mg) and chlorine concentration in the treated brine. Scrubbers
optimization is achieved by maintaining a NaOH concentration range sufficient to achieve
satisfactory removal of scrubbed components without wasting NaOH.
Today’s chemical
processes are usually conducted under the control of a computer system or programmable
logic controller, whereby each step in the operating sequence is monitored to ensure it is
completed and product quality parameters satisfied before proceeding to the next step.
Measurement of the endpoint of a chemical reaction is a potentially important application
for on-line analytical systems supplied by Modcon. Modcon has been helping process
engineers, directors and facilities managers make confident decisions regarding their
analytical instrumentation and process optimization tasks. Our customers appreciate not
only our product and installation knowledge, but also the friendly way we conduct business
and the assurance we bring to every step in the process. |
