Chemical Engineering July 2021 - 14

Yokogawa Corporation of America
ing, and has now been used
in several hydrotreating units
where the conditions are very
harsh (250-480°C or higher,
and pressures of 200 bars), "
says Löffler. The flexible probe
is said to drastically reduce
process perturbation due to
its minimally invasive design.
FIGURE 5. Yokogawa's Sushi Sensors wirelessly monitor temperature,
pressure and vibrations of process equipment throughout
a plant
ture measuring, Endress+Hauser
offers iTHERM ProfilsSens TS901,
a patented multipoint sensor cable
developed for the petroleum refining
industry. It accurately measures temperature
profiles in catalytic hydroprocessing
units, such as hydrotreaters,
hydrodesulfurization and hydrocracker
units. " This very new technology has
undergone a long period of field testCall
the
Solids Mixing
Ribbon & Cone Blenders
Fluidizing Mixers
Sigma Blade Mixers
(also for high-viscosity mixing)
Size Reduction
Wet & Dry Size Reduction
Steel & Ceramic Lined Mills
Jars & Jar Rolling Mills
Vacuum Drying
Dryers & Complete Systems
Monitoring equipment
Reliable temperature measurement
is not only important
for controlling a process,
but also for monitoring the
health of equipment surrounding
the process. IIoT
has been a strong trend influencing
instrumentation and especially temperature
technology, says Gerald
Hardesty, product marketing manager
at Yokogawa. The ease with
which you can install a new wireless
temperature transmitter has also created
a pull for non-intrusive sensors,
he says. " This allows for ultimate flexfor
all your solids processing
Experts
Applications:
APIs ∙ Ag-Chemicals
Biologics ∙ Catalysts
Ceramics ∙ Chemicals
Food Ingredients
Herbicides ∙ Minerals
Nutraceuticals ∙ Pesticides
Pharmaceuticals ∙ Pigments
Polymers ∙ Powdered Metals
Proteins ∙ Resins ∙ Vitamins
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job in the chemical
process industries?
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ibility with obtaining new temperature
measurements. These new measurements
are not directly related to process
control, but are used to help improve
reliability and efficiency. "
" New temperature measurements
can also be combined with other
data to assess the health and performance
of operational assets, " continues
Hardesty. " With Yokogawa's
Sushi Sensors (Figure 5), the temperature
measurements can be taken
as surface temperatures (non-intrusive)
via a magnetic mount or screw
mount sensor, or from the process
via thermocouples connected to a
wireless sensor. " For example, such
technology can be used to identify
failed stages in multistage heat exchangers,
monitor energy loss due
to steam leakage, and temperature
monitoring of tanks and firebricks,
says Meyer. " Finally, the data can be
collected and analyzed on premise,
taken to the Cloud, or both. "
n
Gerald Ondrey
Q u al
191
it y &
Since
1
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Chemical Engineering July 2021

Table of Contents for the Digital Edition of Chemical Engineering July 2021
