Hydrocarbon Processing - October 2021 - 36

Plant Safety and Environment
Case 1, Case 3 and Case 4 at SOR and
EOR operating conditions, respectively.
Takeaway. The impetus for this project
feasibility evaluation was achieving minimal
CAPEX, a simple payback period with
higher potential fuel savings, and a minimal
impact on additional fuel consumption
of the LOP fired heater. Accordingly,
Case 3 (the modification of the Feed-VR
HEX) was selected, as shown in TABLE 1
and TABLE 2. The lowest project cost and
optimum solution for site applications
(construction works, equipment erection,
etc.) were also attained.
Decreasing the carbon footprint of
its facilities is one of the main TÜPRAŞ
strategies. The pinch study showed that
fuel savings of 4.6% for EOR and 2.4%
for SOR conditions and a significant
CO2
were achieved.
TABLE 2. The effects of the pinch study on total fuel savings, simple payback periods
and IRR values at EOR
Alternative scenarios
Base Case [SOR]
-
New heat exchanger addition
5.64%
Shells in 1 x 1 (series*parallel)
New heat exchanger addition
8.32%
Shells in 2 x 1 (series*parallel)
New heat exchanger addition
9.74%
Case 1
Shells in 3 x 1 (series*parallel)
New heat exchanger addition
10.59%
Shells in 4 x 1 (series*parallel)
New heat exchanger addition
8.09%
Shells in 2 x 2 (series*parallel)
Modification of Feed-VR HEX
3.62%
Shells in 2 x 1 (series*parallel)
New heat exchanger addition
5.77%
Shells in 1 x 1 (series*parallel)
New heat exchanger addition
8.61%
Shells in 2 x 1 (series*parallel)
New heat exchanger addition
10.14%
Case 3
Shells in 3 x 1 (series*parallel)
New heat exchanger addition
11%
Shells in 4 x 1 (series*parallel)
New heat exchanger addition
8.88%
Shells in 2 x 2 (series*parallel)
Modification of Feed-VR HEX
4.55%
Shells in 2 x 1 (series*parallel)
Modification of Feed-VR HEX +
New heat exchanger addition
Shells in 1 x 1 (series*parallel) +
1x1 (series*parallel)
New heat exchanger addition
Case 4
Shells in 2 x 1 (series*parallel)
New heat exchanger addition
11.51%
Shells in 3 x 1 (series*parallel)
New heat exchanger addition
Shells in 4 x 1 (series*parallel)
36 OCTOBER 2021 | HydrocarbonProcessing.com
12.42%
3.41
4.22
29.12%
23.34%
4.99%
2.62
38.05%
1.25
79.85%
5.81
16.38%
4.77
20.44%
3.88
25.47%
3.05
32.65%
2.27
43.95%
1.57
63.52%
6.38
14.64%
4.96
19.60%
4.05
24.4%
3.16
31.56%
2.32
42.98%
Total duty
savings, %
-
Simple payback
period, yr
-
IRR, %
-
ASLI REYHAN DİNÇER is the Simulation Section
Leader at TÜPRAŞ headquarters within the process
and equipment development department. She
previously worked as a process engineer for Foster
Wheeler, and has 13 yr of experience in the oil and
gas industry. She holds a BSc degree in chemical
engineering from Yıldız Technical University and
an MBA from Koç University. The author can
be reached at Asli.Reyhan@Tüpraş.com.tr
emissions reduction of ~1,700 tpy
ERHAN ÖZSAĞIROĞLU is a Simulation
Superintendent Engineer at TÜPRAŞ headquarters
within the process and equipment development
department. He previously worked as a Senior Process
Engineer and holds a PhD in chemical engineering
from Istanbul Technical University. The author can
be reached at Erhan.Ozsagiroglu@Tüpraş.com.tr
FUNDA ISERI works as a Production Planning
Superintendent at the TÜPRAŞ Izmir Refinery. She
began working in crude oil and vacuum distillation
plants as an Operation Engineer for TÜPRAŞ in 2011,
and has assumed team member and leadership roles
in several process engineering projects, including
promotions to Chief Engineer and Superintendent
positions. Ms. Iseri earned a BSc degree in chemical
engineering from Middle East Technical University
(METU) and an MSc degree in energy management
from Technical University of Berlin. The author
can be reached at funda.iseri@Tüpraş.com.tr
GIZEM DOGAN is Process Superintendent at the
TÜPRAŞ Izmir Refinery responsible for lube oil
units. She previously worked as a Chief Process
Engineer responsible for crude and vacuum
distillation units. She began working as an OHS
Engineer for TÜPRAŞ in 2014. Ms. Dogan earned
a BSc degree in chemical engineering from
Middle East Technical University. The author can
be reached at Gizem.Dogan@Tüpraş.com.tr
GÖZDE DÖNMEZ YAVUZ is Process Superintendent
at TÜPRAŞ headquarters within the process and
equipment development department. Before this
position, she worked as a Process Engineer for 6 yr
and was responsible for hydroprocessing units
before moving to Simulation Superintendent. She
holds a BS degree in chemical engineering from
Middle East Technical University and an MS degree
in fuel and energy technologies from Boğaziçi
University in İstanbul, Turkey. The author can be
reached at Gozde.Donmez@Tüpraş.com.tr
GÜLŞEN ŞAHİN ANDAŞ is Process Superintendent at
the TÜPRAŞ İzmir Refinery. She previously worked
in the energy management department and is now
responsible for CDU/VDU/SRU/ARU process units.
She holds a BSc degree in chemical engineering and
an MSc degree in engineering management. The
author can be reached at Gulsen.Sahin@Tüpraş.com.tr
8.29%
3.16
31.53%
ONUR AKA is Process Superintendent at TÜPRAŞ
headquarters, where he has held multiple positions in
process and operations functions for 15 yr. Mr. Aka
holds a BS degree in chemical engineering and an
MBA from reputable universities in Turkey. The author
can be reached at Onur.Aka@Tüpraş.com.tr
SINAN MUTLU is Chief Process Engineer at the TÜPRAŞ
Izmir Refinery and is responsible for CDU/VDU/SRU/
ARU process units. He began working in CDU/VDU
as a Process Engineer in 2017 and was promoted to
Chief Process Engineer in 2021. He holds a BSc degree
in chemical engineering from Anadolu University. The
author can be reached at Sinan.Mutlu@Tüpraş.com.tr
http://www.HydrocarbonProcessing.com
Hydrocarbon Processing - October 2021

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