- Abrasion resistant
- Shock resistant
- Heat resistant
- Long life
- Purity 4
- Long lasting because they are inert
and can withstand exposure to most environments.
- A smooth ball alumina; the
smoothness provides low pressure drop characteristics, eliminating
the need for additional compressor horsepower to maintain operating
- Good thermal shock properties and
very good resistance to the mechanical and abrasive actions found
in catalyst support systems.
- High chemical purity, with over 99.7
percent AI2O3 content and minute traces of SiO2.
- Do not produce fines and dust to
contaminate the product stream.
- Unaffected by either oxidizing or
reducing atmospheres at temperatures well below the softening
point. The balls are also practically insoluble in almost all
aqueous acid and alkaline solutions.
Reason for Use
In chemical and petroleum processes
which involve reactors, a chemically inert material is used to
support the catalyst bed. Generally, the support material is in the
form of balls, since that form gives the lowest pressure drop. High
density balls also may be placed at the top of the bed to help
ensure a uniform distribution of the gas or liquid flow across a
down flow reactor tower or to prevent lifting of the bed in a
reactor tower designed for up flow.
Tabular alumina balls are used as
either catalyst support or cover media in numerous hydrocarbon and
catalytic processes such as dehydrogenation, desulfurization,
catalytic reforming, selective hydrogenation, catalytic
isomerization, etc. Tabular aluminas balls, when used as support or
cover media, have an application in practically every solid
desiccant dehydration unit. Specifically, Tabular alumina balls are
used as bed support media when dehydrating natural gas, air inert
gases, and hydrocarbon liquids and gases.