Porous Ceramic Ball also called the filtrating ceramic ball, which is prepared by opening holes on the basis of the former inert alumina. Thus, there is the same bulk void volume as the inert ceramic ball. Therefore, it can play the roles of covering or supporting the catalyst, and separating the gas and liquid. At the same time, there is 20-30% pore volume of structure increased, which has the adsorbing capacity, so that it may be utilized to the impurities filtrating in the oil. As there are such different patterns in the oil as the granular, gum forming, asphaltene, and heavy metals, though these impurities have been filtrated some through the raw material filtrating equipment, there are rather some of the impurities remained (such as <25 μm granular impurities and ferrous ions). If the porous ceramic ball is loaded on the top of the reactors, the impurities, which is still remained through the raw material filtrating equipment, can be adsorbed in its pores, therefore, the catalyst is protected and the under-stream period is guaranteed.

& Chemical and physical properties

&Types and specifications
For WH-PCB porous ceramic ball, there are 12 assortments on every 5% as a grade in accordance with the AL2O3 content from 25% to 80%. There are twelve diameter sizes: Ø3, Ø6, Ø8, Ø10, Ø13, Ø16, Ø20, Ø25, Ø30, Ø38, Ø50, and Ø75. Further, we can also provide the product as customers required specification and shapes