What is the difference between ceramic balls and inert alumina perforated ceramic balls?
2023-09-13
The higher the alumina content, the better the alkali resistance and the higher the crush strength. Inert ceramic balls can be used in conventional packed towers, but sometimes the design requires higher standards for the ceramic balls' specific surface area, pressure drop, etc.
Ceramic balls are divided into packing ceramic balls and grinding ceramic balls. They are widely used in petroleum, chemical, fertilizer, natural gas, and environmental protection industries as catalyst support and tower packing materials inside reactors. They feature high temperature and pressure resistance, low water absorption, and stable chemical properties. They can withstand corrosion from acids, alkalis, and other organic solvents, as well as temperature changes during production.
Inert alumina ceramic balls are used in environmental protection and other industries as catalyst support and tower packing materials inside reactors. They have characteristics of high temperature and pressure resistance, low water absorption, and stable chemical properties. They can resist corrosion from acids, alkalis, and other organic solvents, and endure temperature changes during production. Their main function is to increase gas or liquid distribution points and to support and protect catalysts with low strength.
Perforated ceramic balls are a new product developed based on inert alumina ceramic balls. They have holes drilled along the diameter axis of the sphere, combining certain mechanical strength, chemical stability, and thermal stability, while increasing specific surface area and porosity. This enhances material dispersion and flow rate, reducing system resistance. They can be widely used in petroleum, chemical, and natural gas industries as a substitute for inert alumina ceramic balls for catalyst support and packing.
Perforated ceramic balls are a new type of spherical packing designed based on the mass transfer effect of packing and the medium, through studying the fluid characteristics of the packing layer and modifying the shape of inert ceramic balls. The main principle is: using corundum and mullite as the main crystal phases, with feldspar glass and kaolin sintered bodies as structural bridges, utilizing the high mechanical strength, high temperature resistance, rapid cooling and heating resistance, oxidation resistance, wear resistance, extremely low chemical activity, and strong acid and alkali corrosion resistance of alumina sintered corundum and mullite crystals.
Perforated ceramic balls have one or more round holes drilled along the diameter, solving the swirling resistance problem of single spheres. The corrugated perforated ceramic balls have striped or protruding convex surfaces, increasing the porosity and specific surface area of the packing layer, with strong liquid redistribution ability and excellent gas-liquid dispersion performance. Compared to inert alumina ceramic balls under the same conditions, porosity increases by 12%, contact specific surface area increases by 25%, and resistance decreases by 15%. They can also accommodate and trap coke powder, colloids, and heavy metal impurities, preventing their deposition in the catalyst bed which causes coking and catalyst poisoning.
Application Scope
Perforated ceramic balls are widely used in petroleum, chemical, and natural gas industries as a substitute for inert ceramic balls, serving as support and covering cushion materials for catalysts and as tower packing.
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