Maximizing Bottom-of-the Barrel Conversion with...
Transcript of Maximizing Bottom-of-the Barrel Conversion with...
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Jacinthe Frécon
Maximizing Bottom-of-the Barrel Conversion with Commercially Proven
Technologies
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Conversion Mapping
H-Oil®RC: Ebullated Bed Residue Hydrocracking
Case Study: Diesel maximization with H-Oil® & Coker
Summary
Agenda
Refining India, 12-13 October 2015, New Delhi
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Conversion Mapping
H-Oil®RC: Ebullated Bed Residue Hydrocracking
Case Study: Diesel maximization with H-Oil® & Coker
Summary
Agenda
Refining India, 12-13 October 2015, New Delhi
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RFCC
Conversion Mapping
AR
VR Fixed bed Residue HDT
Ebullated Bed Resid
HCK
Slurry HCK
VGO
VGO HDT /
MHC
SDA EB Distillate
HCK
FCC
HCK
Visbreaker
Delayed
Coker
Refining India, 12-13 October 2015, New Delhi
VDU
LPG
Naphtha
Jet/Kero
Diesel
Fuel
Oil
DAO
Pitch
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Conversion Mapping
H-Oil®RC: Ebullated Bed Residue Hydrocracking
Case Study: Diesel maximization with H-Oil® & Coker
Summary
Agenda
Refining India, 12-13 October 2015, New Delhi
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Axens H-Oil® Process
Nearly isothermal
Low and constant pressure drop
Daily addition of fresh catalyst
No cycle length
Flexibility
Ebullated-Bed Reactor
Refining India, 12-13 October 2015, New Delhi
First unit started in 1968
10 units in operation today
7 units in design/construction
4 awards in 2013/2014
1 award in 2015
Total capacity ~865,000 BPSD
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Availability of H-Oil® Units (2001-2010/2013)
Superior Reliability
Avg. 96.6%
Refining India, 12-13 October 2015, New Delhi
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Conversion Mapping
H-Oil®RC: Ebullated Bed Residue Hydrocracking
Case Study: Diesel Maximization with H-Oil® & Coker
Summary
Agenda
Refining India, 12-13 October 2015, New Delhi
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Context: Expansion Study for an Asian refinery
Maximize Diesel Euro V production
Minimize revamping cost for DCU (if any)
Case Study - Overview
Refining India, 12-13 October 2015, New Delhi
Delayed
Coker
3.6 MTA
Existing
Distillation
Trains
New
Distillation
Train
New resid
Hydro-
conversion
Unit
VR1
VR2
2.2 MTA
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Feedstock: Vacuum Residue 550°C+
Case Study – Description
VR 550°C+
API 7.1
Sulphur, wt% 2.5
Nitrogen, wppm 4900
Viscosity @ 100°C, cSt 9300
Vanadium, wppm 315
Nickel, wppm 110
South America
West Africa
Middle East
Others
2 technology options to achieve high residue conversion
• Ebullated-bed Technology
• Slurry Technology
Refining India, 12-13 October 2015, New Delhi
Crude oil slate
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VR2
UCO
Products
(540°C-)
VR1
H-Oil®RC
3.4 MTA
(1 train)
3.6
MTA
1.2 MTA
2.2
MTA
1.2
MTA
2.4 MTA
Case Study – Ebullated-bed Technology H-Oil®RC
Anode
Grade Coke
Delayed
Coker 3.6 MTA
Liquid
& Gas
Products
Overall Conversion:
(100-Coke) = 79.5 wt%
VR2 Conversion: 87 wt%
Proven High Conversion Scheme
Coke Upgraded as Anode Grade
Refining India, 12-13 October 2015, New Delhi
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VR2
UCO
Products
VR1
Liquid
& Gas
Products
Coke
Delayed
Coker
3.6 MTA
3.6
MTA
2.2
MTA
Case Study – Slurry Technology
Slurry
2.2 MTA
UCO to be Solidified
(catalyst, ashes, coke)
Overall Conversion:
(100-Coke) = 78.1wt%
VR2 Conversion: 92 wt%
Slurry: Little Commercial Experience & only
Short Term Operation
Very Limited Outlet for Slurry UCO Disposal
Coke from Coker cannot be Upgraded
Poorer Quality Products
Refining India, 12-13 October 2015, New Delhi
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VGO HyK and Diesel HDT are included for Diesel
production
Case Study – Diesel Production Comparison
Refining India, 12-13 October 2015, New Delhi
VR 2
Unconverted
VR
Diesel
VR 1
Coke
150°C-
VGO
Diesel
150°C-
VGO
2% diesel
loss in HDT
65% of H-Oil® VGO
& Coker VGO
converted to Diesel
Potential
Diesel
Euro V
Slurry
H-Oil®RC
Delayed
Coker
Diesel
HDT
HyK
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Conversion
• Proven High Conversion with Combination of H-Oil® & Coker
VGO/Diesel Product quality
• Slurry products: heavier, high nitrogen & low hydrogen content
• H-Oil® products: better quality allows boosting downstream unit performance
UCO Disposal
• H-Oil® & Coker: Coke can be marketed as anode grade for Al production
• Slurry & Coker: Coke from coker cannot be upgraded. Slurry UCO has very
poor quality, needs to be solidified and very limited outlets for disposal
Product yield
• Slurry: Highest gas and naphtha yield
• H-Oil® & Coker: Highest potential diesel Euro V production
Case Study – Conclusions
Refining India, 12-13 October 2015, New Delhi
H-Oil® & Coker Option
Higher Profitability
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Conversion Mapping
H-Oil®RC: Ebullated Bed Residue Hydrocracking
Case Study: Diesel Maximization with H-Oil® & Coker
Summary
Agenda
Refining India, 12-13 October 2015, New Delhi
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H-Oil® is a proven technology allowing high conversion of
residue
Design & Catalyst improvements redefine existing H-Oil®RC
limits
H-Oil®RC and Coker association
• Highest Diesel production (20% more than slurry technology)
• Better VGO/Diesel quality: benefit for downstream units and maximizing
diesel product
• Possible Anode Grade Coke production
Summary
Refining India, 12-13 October 2015, New Delhi
Axens has an extensive experience in
Resid upgrading and continues to
improve technologies to reach higher
conversion with better operability
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axens.net
Refining India, 12-13 October 2015, New Delhi