Explore our leading selection of engineered adsorbents, including activated alumina, activated carbon, and specialized zeolite matrices designed for ultra-low dew point purification.
Shanghai Jiuzhou Chemicals Co., Ltd. (JOOZEO) is strategically situated in Shanghai, China's primary economic and industrial development hub. For nearly three decades, Jiuzhou has strictly adhered to the dual pillars of "Quality Control & Continuous Innovation". We are committed to the development, fundamental research, and high-precision manufacturing of world-class, innovative chemical products and advanced adsorbents.
Our expansive product portfolio incorporates specialized 3A, 4A, 5A, and 13X molecular sieve powders, synthetic zeolites, activated powders, activated alumina, aluminum oxide catalysts, diverse configurations of alumina packing, high-durability ceramic balls, sodium silicates, aluminum hydroxide, zeolite 4A, sodium carbonates, and SLES. All products are manufactured in compliance with the ISO9001:2008 quality management system and hold authoritative TUV & SGS certifications.
Our technical capabilities and market reputation make us a trusted partner for industrial gas and petrochemical engineering projects globally. With dedicated distribution hubs spanning the United States, Europe, Southeast Asia, Japan, North and South America, and the Middle East, we deliver customized, energy-efficient, and environmentally friendly adsorption solutions to the global chemical supply chain.
As the global process industry shifts toward carbon neutrality and high-efficiency separations, the science of synthetic zeolites is undergoing a radical paradigm shift. At JOOZEO, our R&D is focused on three strategic directions that represent the future of adsorption technology:
Standard molecular sieves rely on clay binders (typically 15-20% by weight) to form stable spheres or extrudates, which dilutes the active zeolite content. Our technical roadmap highlights the development of binderless molecular sieves. By converting inert binders into active crystalline frameworks, we increase dynamic adsorption capacity by up to 25%, drastically reducing vessel footprint.
Targeting the mitigation of greenhouse gases, our research team is optimizing advanced Carbon Molecular Sieves (CMS) and modified 13X zeolites. These materials are engineered with precise pore structures capable of distinguishing between nitrogen and carbon dioxide under low-pressure swing adsorption (VPSA) conditions, accelerating cost-effective decarbonization.
For applications such as deep natural gas purification and ultra-high purity hydrogen production, we are introducing transition-metal ion exchanges (e.g., silver and copper-exchanged matrices). This allows the selective chemisorption of organosulfur compounds, siloxanes, and trace phosphines down to parts-per-billion (ppb) levels.
Molecular sieves and adsorbents are not standalone products; they are critical functional components within complex industrial thermodynamic cycles. JOOZEO provides integrated solutions designed for optimal operational reliability and cycle efficiency across four core macro sectors:
Water and acid gas removal is vital before cryogenic liquification (LNG) to prevent pipe freezing and corrosion. Our molecular sieves offer low attrition rates, minimizing dust formation and protecting downstream compressor components. They deliver reliable dew points of below -100°C (-148°F).
To produce high-purity nitrogen, oxygen, and argon cryogenically, moisture and CO2 must be completely removed. We provide optimized prepurifier adsorption beds combining activated alumina (for bulk moisture removal) with specialized 13X molecular sieves (for CO2 and trace gas removal), reducing regeneration energy consumption.
Fuel-grade ethanol requires dehydration to 99.5% purity or higher. The distillation process is limited by the water-ethanol azeotrope. JOOZEO 3A molecular sieves selectively exclude ethanol molecules while capturing water, allowing continuous operation in vapor-phase pressure swing adsorption (PSA) systems.
Operational stability in large-scale adsorption units depends heavily on the physical integrity and quality consistency of the catalyst bed. JOOZEO operates two state-of-the-art facilities in Shanghai and Wuxi, combining advanced automation with a central laboratory monitoring system.
Spanning 25,000 square meters, our production workshops are equipped with modern rotary kilns, automated bead formers, and computerized control systems. This allows us to control the crystal growth rate, pore size distribution, and density of our materials. By integrating the raw material supply chain (including high-purity aluminum hydroxide and sodium silicates), we guarantee chemical consistency from batch to batch.
Our quality assurance program guarantees 100% compliance with strict international regulations. Each production batch is subjected to tests measuring crush strength, attrition loss, static water adsorption, and dynamic mass transfer rates, ensuring reliable performance in demanding, high-flow process environments.
Shanghai Factory
Wuxi Factory
JOOZEO does not just follow standards; we participate in drafting them. We contribute to Chinese national and trade standards for compressed air dryers and activated alumina materials, demonstrating our technical leadership.
Adsorption compressed air dryers for general use
Activated aluminum oxide for industrial use
Refrigeration compressed air dryers for general use
Compressed air system energy efficiency index
Technical specifications for chemical adsorbents
Green design assessment for industrial molecular sieves
JOOZEO is dedicated to sustainable manufacturing processes. We continuously optimize our production lines to reduce emissions, recycle wastewater, and supply products that enable clean energy production around the world.
Read our technical FAQ for insights on adsorption mechanisms, molecular sieve regeneration, and how to optimize catalyst bed lifetime.
The difference lies in the nominal pore diameter of the crystal lattice. 3A (3 Angstroms) is ideal for dehydrating unsaturated hydrocarbons and ethanol without co-adsorbing organic compounds. 4A (4 Angstroms) selectively adsorbs water, carbon dioxide, and hydrogen sulfide. 5A (5 Angstroms) acts as a divalent calcium-exchanged structure that can co-adsorb normal alkanes while excluding branched isomer structures. 13X (Type X crystal framework, 10 Angstroms) has the largest pore diameter, making it suitable for co-adsorption of larger nitrogenated and oxygenated compounds, as well as general prepurification of air separation streams.
Adsorption is an exothermic process. As the temperature of the gas or liquid stream increases, the physical forces binding water molecules to the zeolite cage weaken, shifting the thermodynamic equilibrium and reducing dynamic water capacity. For applications operating at elevated process temperatures, special cooling or pre-refrigeration units are recommended to maintain low dew point performance.
Thermal regeneration (TSA) requires heating the bed to between 200°C and 320°C. A dry slip stream of purge gas (such as nitrogen or dry methane) is passed through the bed to carry away desorbed water vapor and hydrocarbons. After heating, the bed must be cooled back to the operating temperature using a dry purge stream before switching back to adsorption mode.
Attrition is caused by mechanical friction between beads, high fluid velocities (fluidization), or thermal shock during fast heat-up cycles. Our manufacturing process controls crush strength, ensuring our zeolites withstand high gas flows and cyclic thermal pressure changes without crumbling.
Standard zeolites (A-type and X-type) have low silicon-to-aluminum ratios, making them susceptible to structural breakdown in acidic environments. For streams containing high concentrations of sour gas (H2S, CO2), we recommend high-silica zeolites or acid-resistant activated alumina to prevent crystalline degradation.
Browse our specialized product configurations, which include carbon molecular sieves for nitrogen generation and activated alumina designed for catalyst bed support.
Need assistance with dynamic absorption capacity calculations, size selection, or custom pricing? Our engineering team responds to technical requests within 24 hours.
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