Refiners are looking for ways to improve hydroprocessing flexibility and meet increasing demand for cleaner fuels. Shell Global Solutions has developed reactor internals technology that equips you better for these challenges.
Shell Ultra-Flat Quench (UFQ) interbed internals can offer increased cycle lengths, throughput and conversion rates, and improved quality, thereby helping to make stringent product goals achievable.
About the technology
Extensive testing with simulated conditions has enabled the development of Shell UFQ interbed internals. These occupy less than 1.2 m of reactor height while keeping the pressure drop to about 0.1 bar (1.5 psi) for optimal liquid-gas mixing and quenching. Integration with Shell high-dispersion (HD) trays also enables improved reactor performance for retrofit and new-build applications.
Designed specifically to mix the gas and liquid phases separately, Shell UFQ interbed internals can achieve excellent mixing performance regardless of quench load. Control of the reactor unit is also significantly improved owing to the reduction in radial temperature gradient. Consequently, smaller variations in radial temperature maldistribution result in a higher achievable WABT, a performance characteristic that enables an increased cycle length (see Figure 1).