Precision zirconia beads

Inert ceramic balls

(Catalyst Bed Support Media)

Inert ceramic balls, also known as inert balls or catalyst support media are very important component in the catalytic process in the refinery, gas processing and petrochemical industry.

Inert ceramic balls, catalyst support

Alumina ceramic ball has the properties of high strength, high chemical stability and thermal stability. It is resistant to high temperature, high pressure, acid, alkali, salt, and various organic solvent corrosion. It is widely used in petroleum, chemical, fertilizer, natural gas, environmental protection and other industries.

It is commonly used to support catalyst and adsorbents products in the vessel or reactor. Its main function is to act as packing material and at the same time to support the catalyst bed in order to prevent breakthrough or loss of catalyst or adsorbent materials downstream of the reactor vessels due to the high pressure and temperature inside the reactor vessels during the operation.

As the support and cover material of reactor catalyst, it can buffer the impact of the liquid and the gas coming into the reactor on the catalyst, protect the catalyst, and improve the distribution of liquid and gas in the reactor.

Inert alumina ceramic ball is the essential bottom filler material of the hydrogenation cracking unit, refined device, catalytic reforming unit, isomerization unit, demethylation devices reactor, adsorber and absorption centers. It can protect the catalyst, and act as buffering and filtering function.

Inert ceramic balls, catalyst support

Inert ceramics are products of different alumina content, such as alumina content 20%, 50%, 70%, 90% and 99%.

Ceramic balls come in different sizes, which include 1”, 3/4”, 1/2”, 1/4” and 1/8”.These sizes are arranged layer by layer at the top and bottom of the vessel or reactor.

Inert ceramic balls, catalyst support

Typical specification of inert ceramic balls

Alumina 99%

Al2O3                                                     : 99 Wt % Min.
SiO2                                                       : 0.3 wt % Max.
Fe2O3                                                    : 0.1 wt % Max.
TiO2                                                       : 0.40 Wt % Max.
CaO                                                         : 0.1 wt % Max.
MgO                                                        : 0.1 wt % Max.
Na2O                                                       : 0.35 wt % Max.
K2O                                                          : 0.05 Wt % Max.
Leachable Iron                                      : by negotiation
Appearance                                           : White, Spherical
Bulk Density                                          : 1700-2100 Kg/M3 (based on granular size)
Apparent Porosity by Weight            : by negotiation
Apparent Porosity by Volume           : by negotiation)
Water Absorption                                : 3% Max.
Operating Temperature                     : 1800 Centigrate Max.
Hardness (MOH)                                  : 9

Crush Strength :
Size 03mm Size Range 3-5mm                   : 0.6 KN/ball Min.
Size 06mm Size Range 5-7mm                   : 2.0 KN/ball Min.
Size 13mm Size Range 12-14mm              : 5.2 KN/ball Min.
Size 19mm Size Range 18-20mm              : 13 KN/ball Min.
Size 25mm Size Range 24-26mm              : 17 KN/ball Min.