TOPGUARD Services Mitigated Tower Corrosion and Saved ... Field Amine Measurement...Saved refinery...
Transcript of TOPGUARD Services Mitigated Tower Corrosion and Saved ... Field Amine Measurement...Saved refinery...
Results
Saved refinery USD 400,000 per year
Proactively mitigated corrosion in
the top sections of the refiner’s
crude unit atmospheric tower
Optimized usage of EXCALIBUR
contaminant removal technology
Challenges
Provide an on-site and fast method
to test for the presence of MEA in
the raw crude
Correlate the MEA in the crude
to corrosion risk in the tower
overhead system
Determine what actions needed
to be taken to mitigate MEA-HCl
salt deposition
Improve additive usage
Baker Hughes solution
TOPGUARD FAMS
TOPGUARD CRM
EXCALIBUR contaminant
removal technology
A US Gulf Coast refi ner was experiencing
severe corrosion damage in the top section
of their crude unit atmospheric tower due to
monoethanolamine-hydrochloric acid
(MEA-HCl) salt deposition. The persistent
corrosion damage compromised the integrity
of the atmospheric tower overhead and
resulted in shorter than desired run lengths.
The refi ner asked Baker Hughes for a fast,
on-site method to quantify the amount
of monoethanolamine (MEA) in their raw
crude, correlate the MEA concentration to
a corrosion risk in the overhead, and most
importantly, prescribe mitigation options
that would enable them to reliably operate
the tower without the risk of MEA-HCl salt
deposition. Being able to accomplish these
objectives quickly and reliably would also
allow the refi ner to optimize their use of
Baker Hughes EXCALIBUR™ contaminant
removal additive that was being used to
acidify the desalters.
To begin, Baker Hughes deployed the
TOPGUARD™ fi eld amine measurement
services (FAMS), a unique methodology to
reliably detect low-level concentrations of
MEA in raw crude. The testing takes place
onsite and provides data feedback in as little
as 1-2 hours. The data obtained was then fed
into the TOPGUARD™ corrosion risk monitor
(CRM) to determine the potential for MEA-
HCl salt deposition in the tower overhead
system. Once this determination was made,
data from the TOPGUARD CRM was used to
propose mitigation options to reduce the risk
of MEA-HCl salt deposition as necessary.
TOPGUARD Services Mitigated Tower Corrosion and Saved Customer USD 400,000Location: US Gulf Coast
CASE HISTORY| bakerhughes.com
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© 2014 Baker Hughes Incorporated. All rights reserved. 42281 12/2014
Current Operations
(No Mitigation)
Mitigation Option 1:
Apply Caustic
Mitigation Option 2:
Option 1+ EXCALIBUR Technology-10
-5
0
+5
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+30
Overhead Chlorides (ppm) = 14
Brine pH = 8.5
MEA (ppm) = 15
Tower Top Temperature = 260°F
Overhead Chlorides (ppm) = 5
Brine pH = 8.5
MEA (ppm) = 15
Tower Top Temperature = 260°F
Overhead Chlorides (ppm) = 5
Brine pH = 5.5 - 6.0
MEA (ppm) = 4
Tower Top Temperature = 260°F
MEA
Sal
t Po
int
T
(°F
)
High
Low
Corrosion R
isk
Corrosion Risk = HIGH
Corrosion Risk = MEDIUM
Corrosion Risk = LOW
The graph illustrates how the data obtained
from TOPGUARD FAMS and TOPGUARD CRM
was used to help the refi ner reliably operate
their atmospheric tower without the risk of
MEA-HCl salt deposition in the overhead.
The data not only allowed the refi ner to
proactively mitigate MEA-HCl salt deposition,
but it also resulted in additive cost savings
of USD 400,000.
This case history is presented for illustration
purposes only, as the results may vary
between applications.
CASE HISTORY