First, the physical properties of the
1, the appearance of the shape: In the center of the ball axis Piercing, a plane perpendicular to the axis perforated reinforced covering promulgated in ball surface Wavelet beads uniformly on both sides of the ball, does not wave covering the total area of the spherical beads is 50% of the spherical surface, a wavelet bead volume is 1% of the volume of the ball. Unit diameter of the ball in order to strengthen the inner diameter of the circle surrounded by the rib as the standard.
2, pineapple ball packing by the strict formula, the use of dense high-temperature sintering surface. Small water absorption, strength Mohs 7, in the case of deep bed loading, easy to crush, rupture and cause pieces to plug the catalyst bed, the catalyst plays a significant protective effect.
3, pineapple ball shape of the filler specifically, compared with the equivalent formulations (openings, inert alumina, high alumina) ball surface area is relatively increased, the porosity is also an increased pressure drop caused by resistance becomes relatively small, so that reactor in the vapor-liquid distribution is more uniform flow rate increases, the resistance decreases, leaving the interception in strong, to extend the service life of the catalyst
Second, the economic benefits.
The pineapple ball carrier strength high proportion by long-distance transport is very convenient. Compared to the demand for the same volume of the same formula (opening inert alumina, high alumina) ball per cubic meter can save investment ¼ the artificial labor costs, transportation costs while saving ¼, filling the reactor is relatively reduce ¼ catalyst relatively extended life. An enterprise in the competitive market to crack the case, reduce costs and increase economic efficiency the best choice.