natural gas and environmental protection. They are used as covering and supporting materials of catalysts in reaction vessels and
as packing in towers. They have stable chemical features and a low rate of water absorption, resist high temperatures and high
pressure, and also resist the corrosion of acid, alkali and some other organic solvents. They can stand the change in temperature
during the manufacturing process. The main role of inert ceramic balls is to increase the distribution spots of gas or liquid, and
to support and protect the activating catalyst with low strength.
