Our Products
SQ Molecular Sieve Co., Ltd. supplies a complete range of molecular sieves and activated alumina for gas drying, air separation, petrochemical processing, and water treatment applications worldwide.
3A Molecular Sieve
SQ-3A-B · GB/T10504-2017
Standard desiccant for insulated glass units (IGU), cracked gas drying, and polar solvent dehydration. Selectively adsorbs H₂O, NH₃, H₂S — excludes ethane and larger molecules.
View Specifications →4A Molecular Sieve
SQ-4A-B · HG/T2524-2010
The most versatile general-purpose desiccant. Dries air, natural gas, refrigerants, and pharmaceutical packaging. Adsorbs H₂O, CO₂, SO₂, H₂S, methanol, ethanol, ethylene, and propylene.
View Specifications →5A Molecular Sieve
SQ-5A-B · GB/T13550-2015
Calcium-sodium type. Uniquely adsorbs normal alkanes while excluding branched-chain isomers. Key adsorbent for PSA hydrogen & oxygen production and n/iso-alkane separation in refining.
View Specifications →13X Molecular Sieve
SQ-13X-B · HG/T2690-2012
Largest pore in the standard series. Highest water adsorption capacity (≥24%). Simultaneously removes H₂O, CO₂, H₂S, and hydrocarbons — ideal for air separation unit (ASU) pre-purification.
View Specifications →13X APG Molecular Sieve
SQ-13XAPG-B · Enhanced Grade
High-performance 13X engineered for cryogenic air separation. Water adsorption ≥26.5%, CO₂ adsorption ≥18.5% — prevents column freezing and extends regeneration cycles in deep-cold ASUs.
View Specifications →Activated Alumina
SQ-AA-B · HG/T3927-2020
High-surface-area adsorbent (BET ≥300 m²/g) for gas drying, fluoride removal from drinking water, liquid hydrocarbon drying, and catalyst support. Three bead sizes: 3–5, 4–6, 6–8 mm.
View Specifications →Can't find what you're looking for?
We also supply customized molecular sieves, IGU-grade 3A fine beads (0.5–1.5 mm), and specialty products. Contact us with your specifications.
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