Hydrocarbon Processing - May 2022 - 61

Process Optimization
of H2
Case 3: Variation of conversion
with the mass flowrate of the
feed. As a function of the mass flowrate
of the feed, FIG. 2 illustrates the H2
conversion inside the plug flow reactor,
other factors remaining constant. The
mass flowrate of the feed varies from
1,000 kg/hr-5,000 kg/hr. As can be seen
from the graph, at lower flowrates the
plug flow reactor with a constant diameter
sees less gas volume and, therefore, has
the maximum conversion. Increasing the
flowrate of the feed gradually causes the
conversion percentage of H2
to decrease.
Case 4: Variation of conversion of
H2 with the volume of the plug flow reactor.
As a function of the volume of the
conversion percentage with the
remaining constant.
. From the curve, it is
conversion
1
plug flow reactor, FIG. 2 shows the change
in the H2
other parameters
and 1.7 m3
The volume of the reactor varies between
0.5 m3
evident that as the volume of the plug
flow reactor increases, so does the H2
conversion. However, the H2
percentage reaches a point when it can no
longer be affected by subsequent reactor
3
4
volume increases once the maximum H2
conversion percentage is reached.
Takeaway. Various " what if " scenarios
have been presented here based on a sensitivity
analysis of a plug flow reactor. As
a result of a systematic and detailed theoretical
analysis, various parameters can be
identified that allow for evaluation and
the identification of optimum functional
points, thereby decreasing costs as well
as detecting complications during operations
and enabling necessary precautions
to avoid them.
LITERATURE CITED
Saltelli, A., S. Tarantola, F. Campolongo and M.
Ratto, " Sensitivity analysis in practice: A guide to
assessing scientific models, " John Wiley & Sons Ltd.,
West Sussex, England, 2004.
2 Anand, A., M. Agrawal, N. Bhatt and M. Ram,
" Software patch scheduling policy incorporating
functional safety standards, " Advances in System
Reliability Engineering, Academic Press, 2019.
Wikipedia, " Plug flow reactor model, " online:
https://en.wikipedia.org/wiki/Plug_flow_reactor_model
DWSIM,
" Chemical process simulation for everyone, "
DWSIM, online: https://dwsim.inforside.com.
br/new/
5
Herz, R. K., " Chemical reaction engineering-Part
13: Intro to plug flow reactors, " online: https://reactorlab.net/resources-folder/cre_notes/CRE%20
notes%2013%20intro%20to%20PFRs.pdf
6
Budding
Brains Education Pvt. Ltd., " Creating
a plug flow reactor simulation in DWSIM software, "
2020, online: https://www.youtube.com/
watch?v=NTje7vRDqbc
KAUSTUBH LATURKAR works as an
Engineer at the Facility for Rare
Isotope Beams (a U.S. Department
of Energy project) at Michigan State
University. He has more than 8 yr
of experience working in the fields
of process engineering, refinery
operations, and utility systems design and operation,
with a special focus on design and commissioning of
engineering systems. Mr. Laturkar earned a BE degree
in chemical engineering from Panjab University,
Chandigarh, India, and an MS degree in chemical
engineering from the University of Florida.
KASTURI LATURKAR works as
a Validation Engineer for Validation
Associates LLC. She has more
than 3 yr of experience working
in commissioning, qualification
and validation of upstream and
downstream bioprocessing
equipment and critical utilities. Ms. Laturkar earned
a B.Tech degree in chemical engineering from
Guru Gobind Singh Indraprastha University,
Delhi, India, and an MS degree in chemical
engineering from Syracuse University.
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Refi nery Petrochemicals Integration: Practical
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Stephen Williams
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Lummus Technology
Lee Nichols
Editor-in-Chief/Associate Publisher
Hydrocarbon Processing
Hydrocarbon Processing | MAY 2022 61
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https://www.reactortorlab.net/resources-folder/cre_notes/CRE%20notes%2013%20intro%20to%20PFRs.pdf https://www.reactortorlab.net/resources-folder/cre_notes/CRE%20notes%2013%20intro%20to%20PFRs.pdf https://www.reactortorlab.net/resources-folder/cre_notes/CRE%20notes%2013%20intro%20to%20PFRs.pdf https://www.youtube.com/watch?v=NTje7vRDqbc https://www.youtube.com/watch?v=NTje7vRDqbc https://en.wikipedia.org/wiki/Plug_flow_reactor_mode https://en.wikipedia.org/wiki/Plug_flow_reactor_mode https://dwsim.inforside.com.br/new/ https://dwsim.inforside.com.br/new/ http://www.HydrocarbonProcessing.com/Webcasts

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