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HS Code |
372397 |
| Name | USY |
| Full Name | Ultrastable Y zeolite |
| Type | Zeolite |
| Framework Type | FAU |
| Si Al Ratio | High (typically >5) |
| Surface Area M2 G | 600-800 |
| Pore Size Nm | 0.74 |
| Thermal Stability | High |
| Primary Use | Fluid catalytic cracking (FCC) |
| Catalyst Form | Powder |
| Chemical Formula | Na56Al56Si136O384·yH2O |
| Crystal Structure | Cubic |
| Color | White |
| Regeneration | Yes, via steaming |
| Sodium Content | Low, after ion exchange |
| Average Particle Size Um | 1-10 |
As an accredited USY factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The USY chemical is packaged in a 25 kg net weight, multi-layer kraft paper bag with moisture-resistant inner lining for protection. |
| Container Loading (20′ FCL) | USY is shipped in 20′ FCL containers, typically 18–20 metric tons per container, packed in 25 kg bags or jumbo bags. |
| Shipping | USY (Ultra-Stable Y Zeolite) is typically shipped in sealed, moisture-resistant bags or drums to prevent contamination and moisture uptake. Containers are clearly labeled with hazard information. During transport, it should be kept dry and protected from physical damage, with compliance to applicable chemical shipping regulations and safety guidelines. |
| Storage | USY (Ultrastable Y Zeolite) should be stored in a cool, dry, and well-ventilated area, away from moisture and incompatible materials. Keep the container tightly closed to prevent contamination and exposure to air, which may affect its catalytic properties. Avoid direct sunlight and sources of ignition. Use proper labeling and handling procedures to ensure safe storage and easy identification. |
| Shelf Life | The shelf life of USY (Ultrastable Y Zeolite) is typically 3 years when stored in a dry, sealed container at room temperature. |
Applications of USY in Industrial ManufacturingUSY (Ultra-Stable Y zeolite) is a specialized synthetic aluminosilicate catalyst utilized extensively in petroleum refining, petrochemical transformation, and selective chemical syntheses. Our production adheres strictly to industry benchmarks and performance requirements, driving consistent outcomes for downstream manufacturers engaged in high-throughput processes. 1. Fluid Catalytic Cracking (FCC) in Petroleum RefineriesRefiners rely on USY as the principal catalyst for cracking heavy gas oil feedstocks into high-value gasoline, light olefins, and cycle oils. USY’s intrinsic acidity and thermal stability permit efficient hydrocarbon conversion at elevated temperatures and cycling loads. Integration occurs within closed FCC units, demanding precise stability profiles and resistance against deactivation from metal contaminants. Manufacturers monitor silica-to-alumina ratios and rare earth content to modulate selectivity and lifespan in response to varying crude qualities. Maintenance protocols ensure catalyst activity and meet regulated emissions thresholds during routine operations and catalyst changeouts. Industry compliance standards
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2. Hydrocracking Catalyst Support in Petrochemical PlantsUSY forms a critical component of catalyst beds supporting noble metal or transition metal functions in hydrocracking units. Its microporous structure enables selective cracking of paraffinic and naphthenic hydrocarbons with strong acidity under hydrogenation conditions. Petrochemical operators require controlled sodium content and precise particle size for optimum metal dispersion and pressure drop management. Routine quality inspections, including attrition resistance and surface area validation, help ensure continuous operation at target conversion rates with minimal byproduct formation. Industry compliance standards
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3. Gasoline Octane Enhancement via IsomerizationManufacturers deploy USY as a co-catalyst or support to enhance research octane number (RON) in commercial gasoline pool blending. In integrated refinery complexes, isomerization units utilize USY catalyst beds to isomerize light naphtha components into highly branched isoalkanes, achieving stringent octane mandates without increasing aromatic content. Process engineers monitor catalyst coking and run-length, balancing component ratios and hydrogen partial pressures for each operation. End users require full traceability for every charge to comply with finished gasoline quality controls. Industry compliance standards
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4. Aromatics Production through Catalytic ReformingSpecialty aromatic producers employ USY-based catalysts for the conversion of light naphtha fractions to higher-value aromatics, such as benzene, toluene, and xylenes. The zeolite’s engineered pore structure and acidity allow for selective dehydrogenation and cyclization, maximizing aromatics yield while minimizing light gas and coke generation. Reforming units require careful catalyst loading and reactor management to ensure product purity aligns with downstream polymer or solvent requirements. Analytical verification ensures process control and minimizes off-spec recycles. Industry compliance standards
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5. Olefin Alkylation Catalyst CarrierProducers of alkylate gasoline use USY as a key component in solid acid catalyst systems for the alkylation of isobutane with light olefins (butenes, propylene). The zeolite enhances iso-octane yields by enabling highly selective and low-temperature reactions, minimizing acid consumption and reducing polymeric byproduct formation. Stringent batch QC controls ensure absence of external surface acidity and optimal crystal size distribution to prevent unwanted side-reactions and fouling. Plant operators benefit from predictable catalyst performance and consistent alkylate quality for compliance blending. Industry compliance standards
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Competitive USY prices that fit your budget—flexible terms and customized quotes for every order.
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USY, short for Ultra-Stable Y zeolite, comes from a long line of development work focused on improvement of catalytic cracking. As a developer and producer, we know USY zeolite holds a reputation for backbone-strength in the refining world, particularly within fluid catalytic cracking (FCC) operations. Our track record shows production batches measured not just by test data, but by real-world refinery yields and feedback from experienced operators under hard use.
Manufacturing USY starts with carefully selected sodium-based Y-type zeolite. The process shifts this material through steaming and rare earth ion exchange, creating a more stable and acid-resistant structure. Precise control over dealumination separates the best material from the rest. The end result: a crystalline aluminosilicate powder or bead, with a faujasite structure strong enough for demanding hydrocarbon feeds.
Years of line production have shown—small variances in feed purity or hydrothermal stabilization steps can swing FCC reactor outputs by several percent. We track performance metrics from plant floors and lab benches, making sure every ton of USY offers consistent activity and stability, as refiners expect.
We deliver USY grades such as USY-980, USY-990, and custom models tailored for customer process cycles or metals tolerance. Typical SiO2/Al2O3 ratios fall in the range of 6 to 80, depending on the application (gasoline yield bias, LPG maximization, or heavy residue tolerance). Surface areas often climb above 700 m2/g, and crystallinity rates above 95% reflect what frequent process adjustments give over years of scaled-up production.
Particle size distribution is not just a number on a sheet. Too fine, and refiners face excessive losses in cyclones; too coarse, and activity drops. Our milling and feed blending lines are calibrated with digital controls and backed by hourly screening, keeping the spec within the tighter end of the industry norm—usually 1–10 μm for powder types.
FCC units function best with a catalyst that withstands both high heat and chemical attack from metals and rare contaminants. Many early synthetic zeolites could not stand up to hydrothermal deactivation or severe coke deposition. USY’s structure resists collapse during continuous cycling, which is a result of dealumination that happens under controlled steaming shifts during manufacture.
Lab-scale hydrothermal stability tests matter a lot, but we pay more attention to long-term plant trials. Overhaul schedules and downtime shape our understanding of cause and effect. A refinery running residue or heavy feedstock notices coke and metals buildup quick. Our USY’s mesopore volume and acid strength remain stable well into repeated recharge cycles. We see how this extends catalyst life and improves operators’ flexibility—pointing to cost savings and less fresh catalyst makeup.
In the field, balances between gasoline range selectivity, LPG production, and coke make are all jockeyed with operational priorities. For example, clients processing heavier feeds often request USY grades with higher rare earth content to offset nickel and vanadium’s deactivating effect. Others running lighter feeds want more activity and less dilute acid sites, dialing up the Si/Al ratio. We keep lines open with refiners, adapting production as their crudes (and their managers’ KPIs) change.
Though FCC remains the biggest application, USY finds growing demand in hydrocracking pretreatments and as an acid catalyst in specialty chemical transformation. The acid sites on USY facilitate isomerization, alkylation, and selective cracking reactions, forming the backbone of cleaner fuel and petrochemical supply chains.
Whereas natural zeolites lack the desired pore dimensions or stability, and older synthetic zeolites lose structure or collapse, USY’s improved framework brings more predictable run lengths. That matters to operators managing environmental compliance or emissions targets, since process reliability directly reduces unplanned flaring or venting.
Having direct experience with multiple generations of zeolite manufacturing, we see sharp contrasts between USY and other types like conventional NaY, ZSM-5, beta, or mordenite.
Conventional NaY zeolite provides high surface area, yet collapses rapidly under the high-temperature steam in FCC regenerators. After producing both at scale, we see USY outlasts NaY in side-by-side tests, running at 780–800°C and surviving hundreds of cycles. Data from plant operations back this—USY grades typically offer twice the average FCC cycle life before deactivation hits gasoline yield.
ZSM-5 caters more to light olefin boosting, such as propylene or ethylene. Our USY, in contrast, balances gasoline octane and selectivity. Some units combine both catalysts, but only USY stands up to the whole slate of vacuum gas oil, coker, or resid feeds.
Mordenite and beta zeolites have narrower channels or less hydrothermal durability. We turned down customer requests to substitute them for FCC core work after witnessing loss in yield and reactor reliability on pilot-scale runs. USY, especially in stabilized grades, offers more room for tuning—by adjusting dealumination depth, rare earth content, or crystallite size—than any mordenite or beta we've seen on the line.
Producing USY consistently means managing a complex chain, from raw sodium aluminosilicate to finished, steamed, and exchanged material ready for shipping in drums or super sacks. We watch for the way raw bauxite or solution chemistry swings bulk properties. A run with a subtle shift in caustic ratio or mixing temperature creates a ripple, from crystal habit through to FCC activity readings. Technicians in our plant run fifteen to twenty analysis points per lot, sometimes more if unexpected variation turns up.
Energy consumption also shapes our production plans. Steaming for stabilization takes both time and power, and operator oversight catches problems before they affect the batch. Heat recovery within plant setup became crucial for us, especially as electricity prices and carbon emissions targets move higher in our region. In years past we ran older rotary ovens with little recirculation; now, our team troubleshoots steam flow and recycles condensate constantly to keep environmental impact in check.
We’ve shifted to using higher-purity raw chemicals after filtering batches with high trace metals threw off acidity and structure in some test runs. Trace zinc, copper, or iron levels over ten parts per million cause acid site collapse and cost refiners in both yield and spend on makeup catalyst. Every lot now undergoes ICP and particle size analysis before leaving the gate.
As competition with other suppliers and third-party blenders heats up, refiners want more assurance about product reliability. Our labs run simulated cyclic hydrothermal aging to predict field performance. After-sales follow-up with refinery turnarounds gives us data matching real-life use, sometimes years after catalyst delivery. That cycle of test and feedback improves our production runs and strengthens trust with refinery process teams.
Years of in-field observation prove that on-spec does not just mean hitting numbers—it involves matching lab tests to plant data, logging every run, and maintaining open books with customers for audit or troubleshooting. Customers return to us for USY because they have less need for emergency shipments, fewer loadings lost to attrition or fines, and a tighter fit with their on-stream availability goals.
R&D continues pushing the limits of USY improvements. We invest in new steaming processes, novel rare-earth exchange methods, and hybrid formulations to answer ever-tougher feed qualities and environmental limits. The industry presses for higher gasoline octane, stricter sulfur removal, and more flexible yield targeting across lighter and heavier crudes.
Greater selectivity sometimes arrives through minor process tweaks—reducing secondary pore collapse by controlling water partial pressure, or by using advanced rare-earth blends for resistance to nickel poisoning. Our pilot reactors run batch after batch under severe conditions. We log run data, analyze every sample for XRD and acidity, and review with technical leads before any plantwide change rolls out.
A new shift in regulation or customer feed slate often sets off months of pilot testing and interaction with vendors. Durable, productive USY grades come from both chemistry and manufacturing discipline. Operators in our plant see everyday how minor improvements—switching to low-iron sodium silicate, realigning the exchange station, or adding secondary washing—change both final properties and our customers’ bottom line.
As a global chemical manufacturer, our USY production runs against increasing pressure to fine-tune emissions, improve yield, and provide transparency into supply chains. Clients regularly call for data on carbon footprint, batch traceability, and compliance with local standards—especially on sulfur, nitrogen, and heavy metal content in both product and manufacturing input streams.
Meeting these asks means tighter controls and a willingness to publish both successes and setbacks. We invest in both equipment upgrades and onboarding programs, training operators to spot early warning signs or develop workarounds to supply hiccups. We share performance data and engage with customer quality teams directly, feeding their experience into our own improvement loop.
Feedback from the field shapes USY design more than any single lab test. A plant running a tough feed can tell us more in a three-month turnaround cycle than a year’s worth of bottle tests. We view direct communication not just as customer service, but as a key driver for product development. Limited runs for test batches turn into large-scale production as plants report improved operation, longer cycle times, and better yields.
Mistakes along the way—mis-judged steaming cycles, upsets with excess rare earth, raw material shifts—have sharpened our approach. Success comes when we use every operator’s experience, analyst’s data point, or customer’s field note as part of the improvement process. This close feedback prevents batch issues from repeating and keeps refiners running efficiently.
The push toward cleaner energy and stricter emissions raises the bar for everyone in the chemical and refining space. USY production continues evolving as we reduce the chemical intensity of washes and as we filter out even low-level heavy metals to meet environmental targets. Improvements in process water recycling cut our own waste and help customers meet their eco-labeling standards as well.
Raw material selection forms the front line. We build partnerships with mines and suppliers, running regular audits for social and environmental compliance. A contaminated batch of kaolin or improperly washed sodium silicate can throw off production and affect multiple downstream lots. Our supply chain teams check these sources to avoid interruptions and backtrack problems to their root cause.
The simple fact remains—without stable, tunable USY grades, modern FCC units cannot hit the blend targets and output levels operators need. USY’s use goes beyond a performance number or lab metric; it shapes energy efficiency, affects plant maintenance schedules, and plays a core role in fuel supply chain consistency. Each litre or kilogram of cleaner gasoline, jet, or diesel that makes it to market relies on this backbone chemistry that only comes from years of careful, real-world-driven manufacturing improvement.
Operators in tough conditions, working night and day to keep cracking units online, have given us frank feedback every year. Their input drives the improvements seen across each generation of USY. We owe success not to automation alone but to the know-how gathered on every shift, every maintenance window, every batch review.
Every batch of USY leaving our facility carries the work of plant technicians, process chemists, and quality staff who focus on both technical edge and practical value. We continue responding to shifting feedstock profiles, tougher product specifications, and new regulatory hurdles. As the market, the fuels landscape, and customer needs shift, USY stands as both a product of innovation and a daily test of manufacturing commitment.
For us, producing USY is not just a technical process—it’s an ongoing partnership with the users who expect proven results, consistent performance, and the confidence that comes from decades of listening, improving, and delivering.
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