Exxon Mobil - Global Technology Forum

Gasoline Benzene Reduction Through Reformate
Alkylation Catalytic Technology: BenzOUT TM
Dr. El-Mekki El-Malki
Dr. Tim Hilbert
ExxonMobil Research & Engineering Company
(EMRE)
Mr. Ronald Birkhoff
Badger Licensing LLC
ERTC 16 th Annual Meeting
2011 Barcelona

The Refiner’s Challenge
Properties
Required for
Engine
Performance
• Examples
• Octane
• Reid vapor pressure
• Driveability Index
Properties
required under
Government
Regulations
• Examples
• Benzene
• Oxygenates
• Sulfur
• Reid vapor pressure

Reducing Benzene in Gasoline Pool
1.0 vol%
1.0 vol%
0.62 vol %
MSATII
1-4 vol%
range
1-5 vol%
range
1-3 vol%
range
1.0 vol%
pending
1.0 vol%

Typical Gasoline Pool Benzene
Components
Average
Volume in
Gasoline %
Typical
Benzene
Level %
Benzene
Contribution %
Reformate ~ 30 3-11 ~ 75
FCC Gasoline ~ 36 0.5-2 ~ 16
Hydrocrackate ~ 3 1-5 ~ 3
Others ~ 31 0-3 ~ 6

Refiner’s Options
Octane
Gasoline
Volume
Gasoline
Pool
Hydrogen
Balance
Light
Olefin
Reformer Feed
Tailoring
Benzene Extraction
Reduced
Production
No
change
Benzene Saturation
BenzOUT
High
consumption
No
consumption
Upgrade
to
Mogas

BenzOUT Process Configuration
Benzene
Concentrate
Pretreatment
Light Olefins
Light end
Full Reformate
Splitter
BenzOUT
Reactor
Stabilizer
Products
• Fixed Bed Reactor Configuration
• Commercially Demonstrated
• First Licensed Unit in Construction

Example of BenzOUT Boosting Product Volume
Benzene
Concentrate
Pretreatment
C 3= /C 3
Light end
Full Reformate
40 KB/D
Splitter
BenzOUT
Reactor
Stabilizer
42.3 KB/D
• Approx. 5% Volume Increase Based on Full Reformate

Example of BenzOUT Product Properties
Temperature ( o F)
Typical Gasoline End Point
Product
Feed
% Evaporated
• Final Product Properties are a Function of Feed Composition and
Benzene Conversion
− Approx. (R+M)/2 increase of 2-5
− Approx. RVP reduction of 0.5 PSI

Process Demonstrated in a North American Refinery
C 3= /C 3
Reformate
BenzOUT
Catalyst
Mogas Blending
• BenzOUT Catalyst Drop-in Application
• BenzOUT Demonstration Conducted in One of the 3 Tubular Reactors
• BenzOUT and Polygas Products Combined for Mogas Blending

Commercial Demonstration Results
100
Benzene Conversion (%)
Olefin/Aromatic ratio
0
0 10 20 30 40 50 60
Days on Stream
• High Benzene Conversion Demonstrated
• Commercial Results Confirm Pilot Plant Data

BenzOUT Technology Delivery
• ExxonMobil Research & Engineering Company (EMRE)
and Badger Licensing LLC formed an alliance:
− BenzOUT offered exclusively by Badger Licensing LLC
− Badger is the contracting party responsible for the process
license, proposals and basic design packages.
− EMRE supplies the BenzOUT Catalyst
• ExxonMobil and Badger have a continuing 30 year
history of licensing Petrochemical Processes

BenzOUT Value Proposition
‐ Upgrade Olefins to High Octane Gasoline
- Increase Gasoline Volume
- Reduce RVP
- Avoid Hydrogen Loss
- Regain Reformer Flexibility e.g. Yield, Octane, H 2
‐ Reduce Benzene Content in Gasoline

THANK YOU