The EMTAM℠ process is a breakthrough technology that maximizes production of valuable paraxylene product while lowering feed and energy costs. The highly paraxylene selective process is built off of commercially proven technologies. Unlike other toluene conversion processes, there is no benzene co-product and no hydrogen co-feed. It is the only process that can tune the methyl to ring ratio based on market conditions and allows unlimited benzene co-feeding to produce paraxylene.
Key Benefits:
Cost Benefits
Lower feed and energy costs
Product slate flexibility – ability to upgrade benzene to PX when market conditions are favorable
Ability to maximize PX product or minimize crude feedstock
High Yields
Toluene mostly converted to PX, no benzene coproduct
High toluene conversion
High methanol incorporation
Stable and consistent product yields
Unique Process Performance
High selectivity to PX/smaller recovery unit
Low sensitivity to poisons (continuous regeneration)
Ability to use ExxonMobil’s LPI process to further lower energy costs
The EMTAM process
The EMTAM process is a fluidized bed catalytic process that uses low-cost and readily available methanol to alkylate toluene and/or benzene to yield a highly paraxylene enriched product with minimized production of other co-products.
Tested and proven technology:
Fluidized bed process derived from FCC technology
Based on 75+ years of ExxonMobil experience with FCC process
Process conditions very similar to FCC (pressure, temperature, fluid solids circulation)
Peripherals identical to FCC (stripper, cyclones, cat cooler, slide valves, transfer lines)
Demonstrated performance
10+ years pilot plant operation
~1 full year of 8 Bbl/day Process
Demonstration Unit operation
Commercially produced catalyst
Reliable design
Reviewed and approved by 4 world-class engineering companies
World-scale unit design complete
Multiple world-class fabricators qualified by ExxonMobil to construct vessel and internals
The EMTAM℠ process is a breakthrough technology that maximizes production of valuable paraxylene product while lowering feed and energy costs. The highly paraxylene selective process is built off of commercially proven technologies. Unlike other toluene conversion processes, there is no benzene co-product and no hydrogen co-feed. It is the only process that can tune the methyl to ring ratio based on market conditions and allows unlimited benzene co-feeding to produce paraxylene.
Key Benefits:
Cost Benefits
- Lower feed and energy costs
- Product slate flexibility – ability to upgrade benzene to PX when market conditions are favorable
- Ability to maximize PX product or minimize crude feedstock
High Yields
- Toluene mostly converted to PX, no benzene coproduct
- High toluene conversion
- High methanol incorporation
- Stable and consistent product yields
Unique Process Performance
- High selectivity to PX/smaller recovery unit
- Low sensitivity to poisons (continuous regeneration)
- Ability to use ExxonMobil’s LPI process to further lower energy costs
The EMTAM process
The EMTAM process is a fluidized bed catalytic process that uses low-cost and readily available methanol to alkylate toluene and/or benzene to yield a highly paraxylene enriched product with minimized production of other co-products.
Tested and proven technology:
Fluidized bed process derived from FCC technology
- Based on 75+ years of ExxonMobil experience with FCC process
- Process conditions very similar to FCC (pressure, temperature, fluid solids circulation)
- Peripherals identical to FCC (stripper, cyclones, cat cooler, slide valves, transfer lines)
Demonstrated performance
- 10+ years pilot plant operation
- ~1 full year of 8 Bbl/day Process
- Demonstration Unit operation
- Commercially produced catalyst
Reliable design
- Reviewed and approved by 4 world-class engineering companies
- World-scale unit design complete
- Multiple world-class fabricators qualified by ExxonMobil to construct vessel and internals
