Hydrocarbon Processing - September 2021 - 42

Refining Technology
* Generate user-configured digital
reports (e.g., material balance-raw
and reconciled-with data quality
indicators that can trend and crossinclude
complex calculations (e.g., the
remaining life of catalyst). These KPIs
are calculated using kinetics or equilibrium-based
reactor models. Automating
Unit monitoring ensures reliable operation of the unit,
identifies disturbances early in the cycle and improves
the understanding of the process. Effective unit
monitoring results in the identification of shortand
long-term economic opportunities.
plot all points and calculated KPIs
over the selected time periods).
As major decisions regarding operating
and optimizing the unit are performed
using the data, it is essential to
identify issues with the data. Relying on
the raw data without checking their stability
and accuracy can lead to erroneous
decisions. Due to this, the leading
practice is for the process digital twin to
calculate data quality parameters, which
automatically validates the quality of data
used to estimate KPIs.
KPIs calculated by the process digital
twin monitor the entire performance of
the unit, and, while some of these parameters
are raw or reconciled values, others
the calculations and consistent reporting
saves a significant amount of time that
unit engineers spend on this routine task.
One of the important uses of the
process digital twin is model assurance,
which ensures that the tools used for
making business decisions are accurate
and represent the actual performance of
the unit. Process digital twins facilitate an
efficient and standardized methodology
for ensuring that plant data, LP predications
and nonlinear model performance
are kept synchronized. Having accurate
data as inputs to the LP is an important
element in making good commercial decisions
regarding operational changes and
product planning. Model performance
indicators (MPIs), as calculated by the
process digital twin, provide a comparison
of the performance of tools vs. the
actual unit operation. The MPIs can then
be tracked in real time, improving
the confidence level
of the tools' users.
Visibility of
information.
Visibility of information is
one of the major drivers for
performance improvement in
large organizations. Identifying
lost potential and communicating
it effectively are the
first steps in reducing it. Simultaneously,
variables associated with performance
improvement need to be recognized.
Traditionally, refinery engineers have
relied on spreadsheets and customized calculations
configured by individuals. The
information processed through this mechanism
is accessible to selected individuals,
and management lacks clarity of the information.
Different versions of spreadsheets
are often owned and used by isolated
groups on an ad-hoc basis. Due to this
critical performance, measures calculated
by these groups may differ, leading to various
reports with different sets of numbers
being sent to management. This creates
confusion throughout the organization.
To avoid confusion, utilization of
FIG. 2. Flow of data through a process digital twin.
the process digital twin as the analysis,
calculation and reporting tool is recommended.
As KPIs are calculated using
first-principles models, custom-made calculations
are minimized, which reduces
dependencies on individuals. A centralized
location is selected for the process
digital twin, which is accessible to all
stakeholders. The results reported can
then be considered as the single version
of truth. With all personnel using these
results, it allows strong governance systems
to avoid dependence on individuals.
The flow of data through a process digital
twin is shown in FIG. 2.
The most dynamic data-updated
FIG. 3. Performance improvement and sustainment.
42 SEPTEMBER 2021 | HydrocarbonProcessing.com
at frequent intervals-are the operating
data from the process units. With continuous
change in the feed quality and
throughputs of the unit, the process digital
twin needs to be updated at regular intervals.
Other inputs can be updated on a
monthly or quarterly basis, or as updated
in other business systems (e.g., prices of
feedstocks and products, and the integrated
operating window).
http://www.HydrocarbonProcessing.com

Hydrocarbon Processing - September 2021

Table of Contents for the Digital Edition of Hydrocarbon Processing - September 2021

Contents
Hydrocarbon Processing - September 2021 - Intro
Hydrocarbon Processing - September 2021 - Cover1
Hydrocarbon Processing - September 2021 - Cover2
Hydrocarbon Processing - September 2021 - Contents
Hydrocarbon Processing - September 2021 - 4
Hydrocarbon Processing - September 2021 - 5
Hydrocarbon Processing - September 2021 - 6
Hydrocarbon Processing - September 2021 - 7
Hydrocarbon Processing - September 2021 - 8
Hydrocarbon Processing - September 2021 - 9
Hydrocarbon Processing - September 2021 - 10
Hydrocarbon Processing - September 2021 - 11
Hydrocarbon Processing - September 2021 - 12
Hydrocarbon Processing - September 2021 - 13
Hydrocarbon Processing - September 2021 - 14
Hydrocarbon Processing - September 2021 - 15
Hydrocarbon Processing - September 2021 - 16
Hydrocarbon Processing - September 2021 - 17
Hydrocarbon Processing - September 2021 - 18
Hydrocarbon Processing - September 2021 - 19
Hydrocarbon Processing - September 2021 - 20
Hydrocarbon Processing - September 2021 - 21
Hydrocarbon Processing - September 2021 - 22
Hydrocarbon Processing - September 2021 - 23
Hydrocarbon Processing - September 2021 - 24
Hydrocarbon Processing - September 2021 - 25
Hydrocarbon Processing - September 2021 - 26
Hydrocarbon Processing - September 2021 - 27
Hydrocarbon Processing - September 2021 - 28
Hydrocarbon Processing - September 2021 - 29
Hydrocarbon Processing - September 2021 - 30
Hydrocarbon Processing - September 2021 - 31
Hydrocarbon Processing - September 2021 - 32
Hydrocarbon Processing - September 2021 - 33
Hydrocarbon Processing - September 2021 - 34
Hydrocarbon Processing - September 2021 - 35
Hydrocarbon Processing - September 2021 - 36
Hydrocarbon Processing - September 2021 - 37
Hydrocarbon Processing - September 2021 - 38
Hydrocarbon Processing - September 2021 - 39
Hydrocarbon Processing - September 2021 - 40
Hydrocarbon Processing - September 2021 - 41
Hydrocarbon Processing - September 2021 - 42
Hydrocarbon Processing - September 2021 - 43
Hydrocarbon Processing - September 2021 - 44
Hydrocarbon Processing - September 2021 - 45
Hydrocarbon Processing - September 2021 - 46
Hydrocarbon Processing - September 2021 - 47
Hydrocarbon Processing - September 2021 - 48
Hydrocarbon Processing - September 2021 - 49
Hydrocarbon Processing - September 2021 - 50
Hydrocarbon Processing - September 2021 - 51
Hydrocarbon Processing - September 2021 - 52
Hydrocarbon Processing - September 2021 - 53
Hydrocarbon Processing - September 2021 - 54
Hydrocarbon Processing - September 2021 - 55
Hydrocarbon Processing - September 2021 - 56
Hydrocarbon Processing - September 2021 - 57
Hydrocarbon Processing - September 2021 - 58
Hydrocarbon Processing - September 2021 - 59
Hydrocarbon Processing - September 2021 - 60
Hydrocarbon Processing - September 2021 - 61
Hydrocarbon Processing - September 2021 - 62
Hydrocarbon Processing - September 2021 - 63
Hydrocarbon Processing - September 2021 - 64
Hydrocarbon Processing - September 2021 - 65
Hydrocarbon Processing - September 2021 - 66
Hydrocarbon Processing - September 2021 - 67
Hydrocarbon Processing - September 2021 - 68
Hydrocarbon Processing - September 2021 - 69
Hydrocarbon Processing - September 2021 - 70
Hydrocarbon Processing - September 2021 - 71
Hydrocarbon Processing - September 2021 - 72
Hydrocarbon Processing - September 2021 - 73
Hydrocarbon Processing - September 2021 - 74
Hydrocarbon Processing - September 2021 - 75
Hydrocarbon Processing - September 2021 - 76
Hydrocarbon Processing - September 2021 - 77
Hydrocarbon Processing - September 2021 - 78
Hydrocarbon Processing - September 2021 - 79
Hydrocarbon Processing - September 2021 - 80
Hydrocarbon Processing - September 2021 - 81
Hydrocarbon Processing - September 2021 - 82
Hydrocarbon Processing - September 2021 - 83
Hydrocarbon Processing - September 2021 - 84
Hydrocarbon Processing - September 2021 - 85
Hydrocarbon Processing - September 2021 - 86
Hydrocarbon Processing - September 2021 - 87
Hydrocarbon Processing - September 2021 - 88
Hydrocarbon Processing - September 2021 - 89
Hydrocarbon Processing - September 2021 - 90
Hydrocarbon Processing - September 2021 - Cover3
Hydrocarbon Processing - September 2021 - Cover4
https://www.nxtbook.com/gulfenergyinfo/gulfpub/HPI-Market-Data-2023-v3
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2024-v2
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2024
https://www.nxtbook.com/gulfenergyinfo/gulfpub/gas-processes-handbook-2022_v2
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https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_processes_handbook_2021_v2
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https://www.nxtbook.com/nxtbooks/gulfpub/catalyst_handbook_2020_v2
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_202008
https://www.nxtbook.com/nxtbooks/gulfpub/refining_processes_handbook_2020
https://www.nxtbook.com/nxtbooks/gulfpub/refining_processes_handbook_2020_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202007
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202006
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_201912
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201911
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2020_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2020
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201910
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201909
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201908
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201907
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_201905
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201904
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201903
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201902
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201901
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_2018_v2
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_2018
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201812
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2019_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2019
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201811
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201810
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201809
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_201806
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_201804
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201803
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201802
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201801
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201712
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201711
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https://www.nxtbook.com/nxtbooks/gulfpub/hp_201701
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2017mediaplanner
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201612
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201611
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