Page 180 - CW E-Magazine (23-4-2024)

Special Report

it is observed many times that high cost low design velocity. In many cases, it optimised. Carry out hydrogen pinch
of batch of the catalyst justifi es lower is possible to increase tube velocity and analysis to identify source and minimise
energy requirement throughout its reduce tendency of fouling by use of sink.
cycle of operation. tube insert.
Concluding remarks
EMS-38: Design of plant and EMS-40: At many locations, after Professional Chemical Engineers
design of steam balance decides con- capacity expansion or addition of fuel will appreciate their role to actively
fi guration of steam turbine. However, quality upgradation project, hydrogen take up the ideas in execution of sus-
due to variation in capacity, change shortfall is observed, restricting capa- tainable manufacturing and reducing
of operating mode as well as various city of the unit. Hydrogen is one of the impact on climate change.
energy conservation schemes to use expensive gases used for hydrogenation
low pressure steam, steam imbalance process or as a clean fuel. In such case, We shall discuss another 40+ ideas
is observed and high pressure steam is source and sink of hydrogen need to be of energy conservation in the next issue.
let-down through Pressure Reducing
and Desuperheating Station (PRDS). ABOUT THE AUTHOR
In case such sink is available for low
pressure steam, change from condensing Mr. Joy Shah is the Founder and Chief Consultant,
turbine to back pressure turbine is one Innov8 ProTech Solutions, The Sustainability and Man-
of the techno-economic effi ciency agement Consultant. Formerly, he was Sr. Vice President
improvement and energy saving options. (Head – Technical) at Reliance Industries Ltd. He was
also a member of the IIChE Chemical Process Safety,
EMS-39: There are many heat Energy and Environment Committee from 2018 to 2022.
exchangers prone to fouling and reduc- For the last fi ve years, Mr. Shah has been consulting for
tion of heat transfer capacity. This can energy and water management, serving as an advisor for
be due to low velocity in tube side, sustainable manufacturing as well as process safety and risk management.
result of operation at low capacity or

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180 Chemical Weekly April 23, 2024

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