DTL™ technology features
DTL™ process technology converts light olefins, present in Fluidized Catalytic Cracking (FCC) off-gas, coker off-gas and other refinery light olefinic gas streams into high-octane gasoline blend stock, significantly increasing their value.
The feed stream for the DTL process comes from:
- Unsaturated fuel gas leaving the FCC gas plant and other unsaturated gases currently burned as fuel gas
- Excess ethylene, butylene and unrecovered propylene present in fuel gas in propylene producing FCC units
Once unsaturated fuel gas is diverted to the DTL process, the stream is converted to high octane gasoline blend stock. The stock can be blended into the gasoline pool for increased gasoline production.
DTL technology also provides a benefit to Propylene producing FCC units as it recovers gasoline yield loss to ethylene and butylene for producing propylene back to high octane gasoline. This technology also provides flexibility to refiners to produce more propylene from the FCC unit without worrying about excess fuel gas production.
Today, 12 refineries are using DTL technology to optimize their gasoline production.