HF-200XP promoted alumina spheres

Promoted alumina spheres for improved fluoride scavenging in the HF alkylation process

BASF HF-200XP promoted alumina spheres minimizes carbon buildup and coking, resulting in higher fluoride loadings and greater conversion rates.

BASF HF-200XP yields carbon pickup of 0.2 - 0.3%, which typical carbon pickup of 3-5% (wt.) is seen on non-promoted aluminas. Furthermore, the surface area is maximized in pores of 30-100Å to aid accessibility of the surface active sites through bulk diffusion. This is accomplished by controlled pore size distribution development in the production of alumina. Conversion improvement of 10-30% is consistently seen in the field.

Uniform ball size, low silica content and low dusting must also be characteristic of the activated alumina in order to ensure effective operation of the defluorinator. Uniform ball size results in lower pressure drop and less chance of fluid channeling, thus promoting maximum bed utilization. Low dusting reduces the likelihood of pluggin valves downstream. A low silica content reduces the tendency of the silica to form silicon tetrafluoride, which can cause plugging and corrosion problems.

BASF HF-200XP promoted alumina spheres have all of these characteristics. Its formulation is optimized so that the spent material is compatible with existing recycling applications. The 1/8” size is generally recommended for liquid applications and is preferred for gas phase applications. However, 3/16” size can be used if pressure drop is a concern.

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