Particle Size Distribution 3μm Cerium Zirconium Solid For
Automobile Exhaust
High catalytic activity: The solid solution structure of cerium and
zirconium elements can provide abundant defect sites and active
sites, promoting the occurrence of catalytic reactions. In
addition, the solid solution structure can optimize the surface
properties of catalytic materials, improve the adsorption and
conversion efficiency of reactants, and thus enhance catalytic
activity.
【Application】
(1) Catalysis of automobile and motorcycle exhaust gas;
(2) Industrial organic waste gas purification and indoor air
purification;
(3) Natural gas combustion catalysis.
(4) Fluid catalytic cracking in oil refining industry.
Rare earth metals have been widely used in automotive exhaust
catalysts, in particular, ceria compounds with their high oxygen
storage capacity and lanthana with its proper basicity and large
ionic size. The performance of catalysts has been dramatically
improved through the use of these materials.Precious metals (Pt and
Pd) and rare earth elements (CeO2) are typical materials for heterogeneous exhaust-gas catalysts in
automotive systems.
【Specification】
| ITEM | INDEX | ITEM | INDEX |
| CeO2% | 60% | D50 | 2.5-3.5um |
| ZrO2% | 30% | Fresh BET | >75m2/g |
| La2O3 | 5% | Aged BET ( 1000℃4h) | >35m2/g |
| Y2O3 | 5% | Aged BET ( 1050℃4h) | >20m2/g |
【Product features】
(1) high temperature resistance and high aging ability: using
cerium oxide and zirconia solid solution as the matrix, some
additives (lanthanum oxide, yttrium oxide, praseodymium oxide,
neodymium oxide) are added to replace the elements, which improves
the high-temperature anti-aging ability of the products.
(2) Excellent oxygen storage and release capacity: the product has
higher oxygen storage and release rate, faster oxygen storage and
release rate and lower light off temperature
(3) Moderate particle size distribution: the medium diameter of the
material is controlled to be 2.5-3.5 μ m by using air grinding and
precise grading technology, and the particle size distribution is
narrow, which improves the coating quality and reduces the peeling
off rate.
(4) Good product stability: advanced production technology and
production equipment, standardized management, to ensure the
stability of the product.
(5) Personalized product customization: strong R & D ability and
industrialization ability ensure that personalized products with
different composition and granularity can be provided according to
customer requirements
【Packing】 25kgs/poly-drum ,500kgs/pallet
1 Q: Are you trading company or manufacturer?
A: We are a professional factory with more than 12 years of
experience in this field. If you are convenience, we welcome you to
visit our company.
2 Q: How can you get sample?
A: Free samples are available, but on the basis that you pay the
courier charges.
3 Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is
15-20 days if the goods are not in stock, it is according to
quantity.
Shanghai Gona Industrial Co.Ltd is founded in 2006, and located in
Songjiang Industrial District, rounded by National Engineering
research Center of Ultrafine Powder(NERCUP).Our company is a
R&D company specialized in technology development of functional
powder materials. Focused on the control technology of powder
particulate, SHGRENM provide several series product such as rare
earth oxide with special particulate properties, cerium oxide
polishing powder, catalyst materials,Alumina for Li+ battery
separator.
Our company is always paying great attention to the intellectual
property and independent development, and pursuing innovation of
science and technology. Our company has been recognized as
“High-Tech Enterprise of Shanghai” since 2008. The project of the
high-precision rare earth polishing powder passed high-tech
achievements transformation, and its annual production reaches 2000
tons.
An automotive catalytic converter (autocat) transforms the primary
pollutants in engine exhaust gases into non-toxic compounds. It is
called a 3-way catalyst because it achieves three different
chemical reactions:
1. The 3-way catalyst consists of a mixture of precious metals,
zirconium and rare earth (mostly cerium) wash coated into a brick
inserted in the vehicle’s exhaust pipe.
2. Oxidizing carbon monoxide into non-harmful carbon dioxide
3. Oxidizing complex unburned hydrocarbonates into carbon dioxide
and water
4. Converting oxides of nitrogen (NOx) with carbon monoxide into
harmless nitrogen and carbon dioxide.
5. Additional catalytic systems are being developed, especially for
addressing the higher oxides of nitrogen (NOx) emissions by diesel
cars (linked to their higher combustion temperature). One of the
most promising technologies (called Lean Nox Trap) uses cerium as a
major catalyst and is particularly suitable for compact diesel
cars.
Global air pollution caused by human activities and industries has
been a major public health concern, particularly in urban areas.
The impact to health services and society at large is significant,
and the majority of cities worldwide do not meet World Health
Organization (WHO) air quality guidelines
