Natural gas must be dried before pipeline transport or further processing because water can create hydrates, accelerate corrosion and disrupt equipment. In a dehydration unit, feed passes through one adsorption vessel while another vessel is regenerated using a heated stream of treated gas or an alternative defined regeneration approach.
1. Feed conditioning — Verify liquid carryover risk, water loading, pressure, temperature and downstream water specification.
2. Deep dehydration — Use a molecular sieve bed to retain water; 3A or 4A selection depends on required selectivity and feed composition.
3. Cyclic regeneration — Restore working capacity by matching regeneration temperature, gas quality and cycle design to the selected material.
Sour gas composition can vary widely. The process question is not simply whether H₂S or CO₂ is present, but whether molecular sieves are being considered for dehydration, final polishing, sulfur-specification control or a broader upstream treating duty.
1. Define the acid-gas load — Quantify H₂S, CO₂, mercaptans, water and any hydrocarbon or liquid carryover.
2. Confirm process boundary — High acid-gas loading can require a dedicated upstream treating process before adsorption polishing.
3. Match the polishing duty — Select the molecular sieve only after confirming target outlet specification, COS-control needs and regeneration conditions.
In NGL operations, adsorption can play two distinct roles. Before cryogenic recovery or fractionation, deep dehydration protects low-temperature and separation equipment. After recovery, selected liquid hydrocarbon streams may require further removal of water, sulfur species or oxygenates to meet product quality requirements.
1. Gas-phase protection — Dry the feed before low-temperature recovery and fractionation to avoid operational instability.
2. Recover and separate — Recover NGL components, then identify whether liquid-product treating is required.
3. Liquid-hydrocarbon polishing — Match pore size and adsorption selectivity to the impurities present in LPG, propane, butane or condensate streams.
LNG feed gas must be conditioned before entering low-temperature liquefaction equipment. The relevant question is whether the dehydration and contaminant-control system can consistently maintain the required specification over repeated adsorption and regeneration cycles.
1. Characterize feed gas — Confirm water, CO₂, acid gas, heavy hydrocarbon and carryover conditions before the dehydration bed.
2. Achieve deep dehydration — Select a molecular sieve and bed configuration that align with the required low-temperature protection target.
3. Preserve cyclic stability — Control regeneration so working capacity, bed integrity and product quality remain reliable over time.
01 · Feed condition
Gas, liquid or mixed phase? Identify water, oil, amine and hydrocarbon carryover.
02 · Water duty
Decide whether the requirement is inlet protection, conventional drying or deep dehydration.
03 · Contaminant map
Map CO₂, H₂S, mercaptans and oxygenates against the required outlet limit.
04 · Operating window
Review regeneration method, temperature, pressure, vessel geometry and pressure-drop window.
05 · Product route
Match protection layer, molecular-sieve family, particle form and grade to the duty.
Selectively removes water, excluding C₂+ hydrocarbons, while preventing co-adsorption that would reduce cycle efficiency.
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Position in process: Deep-drying layer, typically installed after inlet separation and an activated alumina guard bed.
Reliably removes water from natural gas and hydrocarbon streams where only moderate selectivity is acceptable.
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Positionin process: Main dehydration bed, often configured as a standalone distinct layer within conventional TSA units.
Separates normal paraffins from branched/cyclic hydrocarbons; also removes CO/N₂/CH₄ in PSA hydrogen purification.
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Positionin process: Dedicated separation unit or PSA adsorption bed, separate from the gas dehydration train.
Removes moisture, COa, HeS and larger sulfur species/oxygenates in a single bed-ideal for complex contaminant profiles.
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Position in process: Polishing bed after bulk acid-gas removal, or combined dehydration/CO₂ removal in LNG pretreatment.
Acts as a guard bed to absorb liquid water and heavy hydrocarbons, protecting molecular sieves from damage and fouling.
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Position in process: Upstream guard layer, located directly after the inlet separator and before the molecular sieve bed.
JALON has specially designed molecular sieves with high water adsorption capacity and carbon dioxide capacity, excellent hydrothermal stability, and good dynamic characteristics for natural gas dehydration.
01 · Cycle economics
Working capacity determines how long the bed removes contaminants before breakthrough and how often it needs regeneration.
JALON focus: DCS process testing on every batch ensures the figure you plan with matches field performance.
02 · Bed integrity
Bead breakage under bed weight and repeated pressure changes can disrupt gas flow.
JALON focus: Controlled forming and crush-strength testing support consistent bead integrity.
03 · Pressure-drop control
Fines buildup can raise pressure drop, contaminate downstream equipment and accelerate wear on valves and controls.
JALON focus: Particle-size monitoring and attrition testing help maintain uniform, low-dust beads.
04 · Feed resilience
Water spikes, acid-gas exposure and unsuitable thermal conditions can change adsorption behaviour or reduce useful life.
JALON focus: We tailor crystal type, Si/Al ratio and cation composition to your acid-gas and thermal limits. Our R&D team validates stability across six provincial platforms before release.
05 · Regeneration economics
Incomplete regeneration gradually reduces working capacity and can shorten production cycles.
JALON focus: Cycle testing assesses material response to the proposed regeneration temperature and gas quality.
06 · Upset protection
Liquid water or hydrocarbon carryover can overload a molecular-sieve bed, slow mass transfer and create a difficult regeneration event.
JALON focus: We assess guard layers, bed configuration and loading needs based on inlet conditions.
retained reference sample and quality-control record for batch review
For natural gas treating projects, material selection must be supported by controlled manufacturing and traceable quality systems. Review JALON’s current management-system certificates and supporting documentation.
Our professional engineers are ready to help your project
This letter is to inform you that we evaluated Molecular Sieve JLOED 3.0-5.0 MM product from Luoyang Jalon Micro-nano New Materials Co., Ltd to dry our organic solvents for production of electrolyte for Li ion battery. The resulting organic solvents that went through our process with the Molecular Sieve JLOED 3.0-5.0 MM product in our R/D and production facility located in Chico, CA, US passed our specifications showing extremely low content of moisture, below 10ppm. This Molecular Sieve product met our quality requirement, and it is highly recommended for use in the industry of Li ion battery for drying of organic solvents. We also appreciate the technical support from the company.
Nanotech Energy
Luoyang Jalon Micro-nano New Materials Co., Ltd. JLPM series molecular sieves are mainly used for cryogenic drying of general industrial gases. The purification system in the air separation unit removes H2O and CO2, as well as natural gas and other hydrocarbon desulfurization (removal of H2S and mercaptans) and CO2.
It is worth mentioning that Yuntianhua United Commerce Co., Ltd. Company 52000 Nm3/Cryogenic air separation unit project. The design and manufacture method of the air separation unit by air, adsorber adopt vertical radial flow design, processing capacity of 311352 nm3 / h, 5.13 Bar (A) adsorption pressure, loading type my company JLPM3 efficient molecular sieve 92 tons, 107 tons of activated alumina, can ensure that the CO2 content in the air mean 1000 parts per million (2000 PPM) instantaneous equipment and stable operation, export CO2 molecular sieve < 0.1 PPM.
The fifth-generation high-performance molecular sieve JLPM1 is an advanced molecular sieve used in the pre-purification unit (APPU) of air separation equipment. Compared with previous generations, the fifth-generation high-performance molecular sieve JLPM1 has significantly improved CO2 adsorption capacity; the fifth-generation high-performance molecular sieve JLPM1 will bring multiple benefits to air separation designers and operators. For the design of the new air separation plant, the application of the fifth-generation high-performance molecular sieve JLPM1 can make the air separation occupy a smaller area, thereby reducing equipment investment and operating costs. The fifth-generation high-performance molecular sieve JLPM1 can also be used for the transformation of old equipment, which can reduce energy consumption or improveair separation processing capacity.
Oxygen molecular sieve is an important material to ensure the work of VPSA oxygen production equipment. This project is another successful case of our JLOX-103 lithium-type high-efficiency oxygen molecular sieve.
The 30000Nm3/h pressure swing adsorption (VPSA) oxygen production project of Zhuhai Yueyufeng Iron and Steel Co., Ltd., designed and built by CSSC Huanggang Precious Metals Co., Ltd., was successfully started up on June 27, 2019. As of May 29, 2020, the device has been operating stably for 11 months, and all indicators are better than the design indicators. It has been highly recognized and praised by customers, and has created a cumulative effect of 150 million yuan per year for the enterprise. At the same time, the project has realized intelligent oxygen production, mobile control and remote monitoring to guide production, helping to realize the green and intelligent promotion of the industry.
The project uses 4 sets of pressure swing adsorption (VPSA) oxygen generators in parallel. The single set of device is designed to produce 7500Nm3/h of oxygen and 80% oxygen purity. It is filled with our company (Luoyang Jalon Micro Nano New Materials Co., Ltd.) JLOX-103 lithium-type high-efficiency oxygen molecular sieve is 68 tons, the actual oxygen output reaches 7650Nm3/h, and the oxygen concentration is above 82.3%. The 4 sets of equipment in this project are filled with 272 tons of our JLOX-103 oxygen molecular sieve, with a total oxygen production of more than 30000Nm3/h.
Oxygen molecular sieve is an important material to ensure the operation of VPSA oxygen production equipment. This project is another successful case of our company’s JLOX-103 lithium-type high-efficiency oxygen molecular sieve.
Luoyang Jalon Micro-nano New Materials Co., Ltd. JLOX-100 series high-efficiency oxygen generation molecular sieve is a lithium X-type aluminosilicate crystal, which is an oxygen generation molecular sieve with international advanced level. Widely used in: iron and steel, non-ferrous metallurgy, chemical industry, furnace energy-saving transformation, environmental protection, papermaking, aquaculture, medical care and other industries.
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