Pseudo boehmite brand FSB

Pseudoboehmite (PB) is a transitional alumina precursor with a rich pore structure, classified into large-pore, medium-pore, and small-pore types based on pore size differences. This classification directly affects its performance in applications such as catalysis and adsorption.

1. Small-Pore Pseudoboehmite
-Pore Size Range: Typically <4 nm (some literature defines it as <3 nm). Applications: -Suitable for small-molecule catalytic reactions (e.g., hydrogenation, dehydration). -Used as a binder for molecular sieves or catalysts.

2. Medium-Pore Pseudoboehmite – Pore Size Range: 4–10 nm (widely accepted definition). – Applications: – Widely used as a carrier in petrochemicals (e.g., FCC catalysts, hydrotreating catalysts).

3. Large-Pore Pseudoboehmite – Pore Size Range: >10 nm (some can exceed 50 nm).
– Applications:
– Carrier for macromolecular reactions (e.g., heavy oil hydrogenation, biomass conversion).
– Filtration materials or catalyst coatings.