UOP high efficiency

UOP High Efficiency Side-by-side configuration High superficial velocities for small catalyst inventory Fast dilute phase regeneration in small vessel combustor discharging into a disengaging chamber... 

Figure 8. UOP High Efficiency - FCC Reactor-Regenerator Assembly Hemler (1989)...

FIG. 17-25 Modern FCC unit configured for high-efficiency regeneration and extra catalyst cooling. (Reprinted with permission of UOP. RCC is a service mark of Ashland Oil Inc.)... 

Application The MX Sorbex process recovers mefa-xylene (m-xylene) from mixed xylenes. UOP s innovative Sorbex technology uses adsorptive separation for highly efficient and selective recovery, at high purity, of molecular species that cannot be separated by conventional fractionation. 

Based on these viewpoints, UOP developed the high-efficiency regenerator in 1974 with the following characteristics (Cabrera and Mott, 1982) ... 

Benfield LoHeat System (UOP) [677], The high thermal efficiency of this two-stage adsorption process using lean and semi-lean solvent is achieved by recompression of the flash steam with an injector or a mechanical vapor compressor. UOP has also developed a number of other process configurations [404], [669], [678] -[680], The diethanolamine promoter enhances the mass transfer by carbamate... 

Hanging downcomers as in the UOP MD tray (Fig. 5) are useful for high liquid loads, but there is efficiency loss because of the short flow path lengths. This problem may be countered by using more trays at reduced spacing. 

The commercialization of liquid phase processes, which operate at substantially lower temperatures, decreased the side reactions dramatically, resulting in ultra-high-purity EB product. This improvement alleviated problems previously encountered in the downstream styrene plant. The first liquid phase commercial plant based on the Lummus/UOP process was commissioned in 1990. Since then, more than 25 projects have been licensed with more than 17 plants in commercial operation as of 2004. The liquid phase plants typically achieve high onstream efficiency, often greater than 99%, which results in low turnaround and maintenance costs. This technology is now licensed by UOP LLC and ABB Lummus Global. 

Cumene peroxidation is the preferred route to phenol, accounting for more than 90% of world production. The Sunoco/UOP Phenol process features low feedstock consumption (1.31 wt cumene/wt phenol). High phenol and acetone product qualities are achieved through a combination of minimizing impurity formation and efficient purification techniques. Optimized design results in low investment cost along with low utility and chemicals consumption for low variable cost of production. No acetone recycle to the decomposition section and simplified neutralization make the Sunoco/UOP Phenol process easier to operate. 

The first use of platinum catalysts, the UOP Platforming process, went onstream in 1949. Originally developed to upgrade low octane number, straight-run naphtha, to high octane motor fuels, the process has since been applied to the production of LPG and high purity aromatics. With proper feed preparation, the Platforming process efficiently handles almost any refinery naphtha. 

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