Honeycomb ceramic is a new type of ceramic product with a honeycomb-like structure developed in the past three decades. From its earlier use in car exhaust purification, it is widely used in chemical, electric power, metallurgy, petroleum, electronic appliances, machinery, and other industries today. Its application is more and more extensive. Its development prospects are considerable.
At present, the number of larger holes in the honeycomb has reached 20-40 per square centimeter, the density is 2.8 grams per cubic centimeter, and the water absorption rate is 0-60%. Due to the feature of porous thin walls, the geometric surface area of the VOC catalyst substrate is greatly increased and the thermal shock resistance is improved. With the increase in the number of pores per unit area and the decrease in the thickness of the carrier hole wall, the thermal shock resistance of the ceramic substrate increases, and the temperature of thermal shock damage also increases. Therefore, honeycomb ceramics must reduce the expansion coefficient and increase the number of pores per unit area.
The raw materials for the earlier production were mainly kaolin, talc, and clay. And today has broken through. Especially the application of diatomite, zeolite, bentonite, and refractory materials. It is widely used and their performance is getting better and better.
It can be made from a variety of materials. The main materials are cordierite, mullite, aluminum titanate, activated carbon, silicon carbide, activated alumina, zirconia, silicon nitride, and composite matrix such as mullite-cordierite, cordierite-aluminum titanate. After the activated carbon powder or granules are made into the shape, the water treatment’s purification and wastewater treatment capacity is greatly improved. Especially in the pharmaceutical industry, hormones, vitamins, nucleic acid injections, and various injections, dehydration, decolorization and impurity removal of substances, etc.
According to the application, it can be divided into four categories: regenerator, filler, catalyst substrate, and filter.
Since the specific heat capacity can reach more than 1000J/kg, the maximum operating temperature of the product is ≥1700°C. It is used as a regenerator in furnaces such as heating furnaces, roasters, soaking furnaces, and cracking furnaces. The fuel can be saved by more than 40%, and the output can be increased by more than 15%.
The material is used as the catalyst substrate, and the unique coating is used to prepare the precious metal, rare earth metal, and transition metal. It can effectively improve the catalytic activity, thermal stability, service life, and strength of the product.
SEFU can provide you with various honeycomb ceramic products. Our honeycomb ceramic products include honeycomb ceramic regenerator, honeycomb ceramic catalyst substrate, and honeycomb ceramic filter. Are you interested in these products? Come to SEFU to contact us and leave your inquiry.