Purifying Energy with Science, Engineering the Future
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Industrial Gas Purification
- ⓵ End-to-end purification & upgrading for natural gas
- ⓶ Large-scale turnkey engineering – from wellhead to pipeline
- ⓷ Customized process solutions for sour gas, high CO₂ & N₂-rich feedstocks
- ⓸ One partner, complete gas value chain – cleaner output, higher value
Air Separation & Purification
- ⓵ Excellent economic efficiency, significant cost reduction and efficiency improvement
- ⓶ Advanced and stable technology, on-demand purity adjustment
- ⓷ Safe and reliable operation, easy and low-maintenance
- ⓸ Wide range of applications, covering various industries
- ⓹ Energy-saving and environmentally friendly, highly efficient energy utilization
Energy Application Equipment
- ⓵ Diesel & natural gas generators – one source, total flexibility
- ⓶ Turnkey power plants – design, supply, install & commission
- ⓷ 24/7 reliability for continuous or standby operation
- ⓸ Engineered to your load profile, fuel availability & emissions target
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Solutions Our Solutions
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Natural Gas Surface Production Engineering
Natural gas surface production engineering processes multiphase fluids from wellheads into clean natural gas meeting pipeline or liquefaction specifications. We undertake turnkey construction from wellhead to sales point, covering separation, metering, acid gas removal, dehydration, light hydrocarbon recovery, and liquefaction.Learn More -
Biogas Treatment Engineering
Biogas treatment engineering uses organic waste (livestock manure, food waste, sludge) as feedstock, produces biogas through anaerobic digestion, and purifies it into clean energy products such as compressed biogas (CBG) or bio-LNG. We undertake turnkey engineering from biogas pretreatment to final product formation.Learn More -
Industrial Gas Processing
Industrial gas processing covers purification and refining of industrial gases including hydrogen, nitrogen, oxygen, and CO₂, as well as catalytic treatment of VOC-containing waste gas streams. Based on target gas specifications, we provide system integration and turnkey supply for catalytic deoxygenation, temperature swing adsorption (TSA), and pressure swing adsorption (PSA) processes.Learn More
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Nitrogen Generators
The PSA Nitrogen Generator utilizes Pressure Swing Adsorption (PSA) technology.Learn More
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Oxygen Generators
The PSA Oxygen Generator produces oxygen on-site using Pressure Swing Adsorption (PSA) technology with specialized Zeolite Molecular Sieves.Learn More
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Hydrogen Production Equipment
Advanced membrane electrode design and optimized flow field structure achieve DC power consumption as low as ≤4.3 kWh/Nm³ , significantly reducing operational costs.Learn More
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Cryogenic Air Separation Units
Based on cryogenic distillation, utilizing boiling point differences to separate air into high-purity N₂, O₂ and liquid argonLearn More
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CNG Generators
Gas generator sets use combustible gases (natural gas, biogas, etc.) as primary fuel. The gas engine converts chemical energy into mechanical energy, driving a synchronous generator to produce electricity, and the control system achieves grid synchronization. The process covers five core stages: gas supply, air-fuel ratio control, ignition & combustion, power generation, and waste heat recovery.Learn More -
Diesel Generators
High Reliability & Long Service Life: Built on proven diesel engine platforms with reinforced crankshafts, cylinder blocks and pistons. MTBF exceeds 5,000 hours; engine design life is over 20,000 hours (B-level maintenance interval). Multi-level protection systems keep the genset running around the clock.Learn More
about us about huaYan
With excellent products and service, to become the world famous brand of exports.
Xuzhou Huayan Energy Technology Co., Ltd. is a leading energy equipment supplier
headquartered in Xuzhou, Jiangsu Province, China, operating from a 91,260-square-meter
facility. With a heritage of design and manufacturing expertise since 1965, we possess
comprehensive in-house capabilities spanning forging, casting, heat treatment, welding,
machining, assembly testing, and advanced technical inspection. We deliver customized
product design, manufacturing, installation, and integrated project solutions for critical
sectors including national defense, aerospace, nuclear power, and petrochemicals. Our core
offerings encompass air separation and purification systems such as PSA/VPSA nitrogen &
oxygen generators and cryogenic air separation units, energy application equipment including
CNG and diesel generators, and industrial gas purification solutions for natural gas
processing, LNG plants, helium extraction, and carbon capture.
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50
Manufacturing Experience
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40
Invention Patents
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90000
Factory Area
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50
Export Destinations
Our Story BRAND HISTORY
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1905French, Belgian investment in China to build the longhai railway, established the xuzhou longhai railway locomotives locomotive repair factory.
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1951China Railway Army Engineering Department took over the establishment of the People's Liberation Army Railway Corps mechanical repair factory.
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1965It was renamed the PLA 6414 Factory and produced the first air compressor.
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1984The first diaphragm compressor was produced.
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2012The company has expanded its scale, and the entire factory has moved to No. 99, Yangshan Road, Xuzhou Economic Development Zone. The hardware facilities have been further upgraded.
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2018Establish Xuzhou Huayan Group.
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2024The company moved into a brand-new, self-owned office space and expanded its staff.
Our Advantages WHY CHOOSE US
Long-term and in-depth cooperation with China University of Mining and Technology and Xi'an
Jiaotong University
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100% Customer Satisfaction
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Professional After-sales Team
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Strict Quality Control
Application Industry Applications
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National Defense
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Aerospace
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Nuclear Power
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Petrochemical
Supplies high-purity, reliable on-site hydrogen for submarine AIP systems, military fuel cells, field hydrogen supply, and UAV power systems.
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Liquid oxygen serves as rocket propellant oxidizer and cryogenic test medium for research institutes and aerospace test facilities.
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Provide customized product design, manufacturing, installation, and integrated project solutions.
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Inert blanketing for reactors, pipeline/ vessel purging, nitrogen drilling and displacement in oil & gas fields.
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latest news Stay updated on HUAYAN's latest news
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March 13, 2026
What is the Difference Between PSA Oxygen Generator and VPSA Oxygen Generator?
In the modern industrial landscape, the ability to generate oxygen on-site has become a cornerstone of operational efficiency and independence.VIEW MORE
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March 13, 2026
How to Choose a Nitrogen Generator?
In the modern industrial landscape, nitrogen has evolved from a simple utility gas to a critical component in ensuring product quality, process safety, and operational efficiency.VIEW MORE
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March
13,
2026
Diesel Generator or CNG Generator? How Should One Make a Choice?
In the world of industrial and commercial backup power, the question of fuel is fundamental.VIEW MORE
