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Crude nitrogen prepared by pressure swing adsorption (PSA) or membrane system is mixed with a small amount of hydrogen, and the residual oxygen reacts with hydrogen in a reactor filled with metal palladium deoxidation catalyst to produce water vapor. Then, * of the water vapor is condensed through an aftercooler, and the condensed water is removed through a high-efficiency water separator, and then enters the adsorption dryer to make the product gas dew point below-70℃. The product gas purity is continuously monitored online by an analyzer.

The hydrorefining nitrogen unit consists of a mixer, catalytic reactor, aftercooler, cyclone separator, filter or adsorption dryer, oxygen analyzer, flowmeter and product nitrogen buffer tank.

scope of application

This hydrogenation purification system using deoxidation catalysts is particularly suitable for industries that are not sensitive to hydrogen. The process is particularly suitable for heat treatment, powder metallurgy, copper smelting and processing, steel deep processing, bearings, chemicals, electronics, glass, metal materials, magnetic materials and other industries.

specification parameters

• Nitrogen production: 10~3000Nm3/h
• Nitrogen purity: 99.9995%
• Nitrogen content: 1000ppm~5%(adjustable)
• Pressure drop: 0.1Mpa
• Oxygen content: ≤5ppm

technical advantages

• Adopt efficient catalyst, advanced process and stable performance
• Deoxidation can be carried out at room temperature without heating, saving energy consumption
• The requirements for nitrogen uptake are wide, and nitrogen uptake can be selected within the range of 98 - 99.9%.
• The hydrogenation purification unit is equipped with an automatic nitrogen-hydrogen proportioning device according to the working conditions. It can automatically calculate and control the amount of hydrogen added according to the amount and purity of the nitrogen gas flow. It is fully automatic. The equipment has sensitive response, small lag, and high adjustment accuracy.
• Mixing of nitrogen and hydrogen is completed in a static mixer, with good mixing effect and less hydrogen consumption

Shanghai Xinran Compressor Co., Ltd. operates under Asia-Pacific Universal Machinery Share Limited (APU), positioning itself as a world-leading designer and manufacturer of compressor products and systems. Xinran Compressors integrate advanced design concepts from industrial nations like the United States and Germany, coupled with rigorous manufacturing processes, resulting in mature production technologies and robust air compressor products.

The air compressors manufactured by Shanghai Xinran Compressor Co., Ltd. feature low heat generation, minimal energy consumption, infrequent failures, and reduced wear. Renowned for their high efficiency and superior performance, these compressors are extensively utilized across diverse sectors including power generation, textiles, iron and steel, food processing, pharmaceuticals, respiration and diving applications, firefighting, electronics, machinery, automotive, packaging, printing, toys, chemicals, energy, glass manufacturing, environmental protection, hardware, PET bottle blowing, shipbuilding, and military industries. The products are exported to markets across Europe, Africa, Asia, and Latin America.

Xinran serves clients globally spanning production, aquaculture, manufacturing, and service industries. It is earning widespread acclaim from users both domestically and internationally, attributed to its impeccable quality and attentive services.

Here is the English translation of the brand development milestones:

🕰️ ‌Brand Development Milestones‌

Technical Accumulation (1985-2008)‌

The company’s predecessor participated in the ‌early formulation of China’s air compressor industry standards‌, laying the foundation for subsequent technologies.
Integrated industrial design concepts from ‌the United States and Germany‌, forming precision manufacturing technology reserves.

Formal Establishment (2008)‌

APU Machinery‌ (Asia-Pacific Universal Machinery) established a wholly-owned subsidiary in China, with its headquarters located in ‌Minhang District, Shanghai‌.
Focused on R&D of ‌screw air compressors‌, serving leading enterprises such as ‌Baosteel and Volkswagen‌.

Global Expansion (2010s)‌

Established production bases in ‌Xuzhou and Beijing‌, along with R&D centers in ‌the United States and Brazil‌.
Products exported to ‌120 countries worldwide‌, covering sectors including ‌energy, shipbuilding, and automotive manufacturing‌.

Translated with reference to standardized corporate documentation formats and terminology from bilingual industry sources.

Brand core story
Technology serves the country mission
With the original intention of "domestic substitution", the R & D team broke through "stuck neck" technologies such as high-pressure and oil-free screw machines to replace imported equipment. The military industry provides extreme environment compressors to support the reliability of national defense equipment.
Green intelligent manufacturing transformation
Lay out the hydrogen energy industry chain, independently develop hydrogen production feedstock compressors, hydrogen refueling station equipment and electrolytic cells, and promote low-carbon transformation.
Global service network
We have established offices in Germany, Russia, Brazil, etc., and will bring our core products to the Moscow International Summit in 2024, and bring our core products to the International Industrial Exhibition in Hanover, Germany in 2025.
Enterprise spirit: Adhere to the concept of "manufacturing with ingenuity", pass ISO9001 certification, and the mainframe life reaches 80,000 hours.

Shanghai Xinran Compressor Co., Ltd. is a subsidiary of Asia Pacific General Machinery Co., Ltd. and a professional manufacturer of air compressors in China. Our company specializes in providing solutions for various air compression needs.

Since its establishment in 2008, Shanghai Xinran Compressor Co., Ltd. has specialized in the design, research and production of air compressors, vacuum pumps, blowers, expander generators, gas storage tanks, filters, nitrogen generators, dryers, hydrogen air compressors, electrolytic cells, and hydrogen refueling station construction. Widely used in chemical processing, electronic product manufacturing, electric vehicle and battery production, food and beverage production, glass manufacturing, liquefied natural gas production and transportation, medical and pharmaceutical, plastic processing, pulp and paper, printing and dyeing textiles, iron and steel metallurgy, mining, cement, building materials, wastewater treatment and other aspects.

Since its establishment, the company has three independent factories, with an annual export volume of 25000 units and more than 3000 industrial enterprise users. We are customer-centered and provide consulting and metal processing services from project design to product completion. We have advanced equipment, which ensures the efficiency of equipment production and the accuracy of equipment and instruments to ensure that our customers have obtained higher quality products faster.

The company's products have performed well in domestic and foreign markets and have been exported to North America, Europe, Southeast Asia, the Middle East, India and other countries and regions; it has established a North American R & D and service center in Edmonton, Canada, to carry out global technology simultaneous research and development and provide services to the North American market; an assembly factory has been established in Poland to serve the EU market and Russian-speaking countries. Strive to build a global sales and service network to make our products more convenient to industrial users around the world.

Xinran is located in Shanghai, the prosperous economic center of China, providing extensive connectivity to global business and enhancing our logistics capabilities. We invite you to explore our products and services with superior efficiency and reliability. Contact us to find a sustainable solution to meet your compressed air needs.

quality compliance
Our company uses advanced manufacturing equipment and a complete quality management system, allowing us to manufacture a complete set of high-quality air compression equipment.

We can guarantee the quality of our products because they are tested in our own modern testing laboratory, where we perform multiple quality tests such as physical testing, chemical testing, performance testing, etc.

All quality testing is carried out in the production department, where our high-end products are produced. In addition, our medium pressure air compressors, high pressure air compressors, piston air compressors, centrifugal air compressors, etc. have also passed CE and TUV certification.

Shanghai Xinran Compressor Co., Ltd. is a subsidiary of Asia Pacific General Machinery Co., Ltd. and a professional manufacturer of air compressors in China. Our company specializes in providing solutions for various air compression needs.

Since its establishment in 2008, Shanghai Xinran Compressor Co., Ltd. has specialized in the design, research and production of air compressors, vacuum pumps, blowers, expander generators, gas storage tanks, filters, nitrogen generators, dryers, hydrogen air compressors, electrolytic cells, and hydrogen refueling station construction. Widely used in chemical processing, electronic product manufacturing, electric vehicle and battery production, food and beverage production, glass manufacturing, liquefied natural gas production and transportation, medical and pharmaceutical, plastic processing, pulp and paper, printing and dyeing textiles, iron and steel metallurgy, mining, cement, building materials, wastewater treatment and other aspects.

Since its establishment, the company has three independent factories, with an annual export volume of 25000 units and more than 3000 industrial enterprise users. We are customer-centered and provide consulting and metal processing services from project design to product completion. We have advanced equipment, which ensures the efficiency of equipment production and the accuracy of equipment and instruments to ensure that our customers have obtained higher quality products faster.

The company's products have performed well in domestic and foreign markets and have been exported to North America, Europe, Southeast Asia, the Middle East, India and other countries and regions; it has established a North American R & D and service center in Edmonton, Canada, to carry out global technology simultaneous research and development and provide services to the North American market; an assembly factory has been established in Poland to serve the EU market and Russian-speaking countries. Strive to build a global sales and service network to make our products more convenient to industrial users around the world.

Xinran is located in Shanghai, the prosperous economic center of China, providing extensive connectivity to global business and enhancing our logistics capabilities. We invite you to explore our products and services with superior efficiency and reliability. Contact us to find a sustainable solution to meet your compressed air needs.

quality compliance
Our company uses advanced manufacturing equipment and a complete quality management system, allowing us to manufacture a complete set of high-quality air compression equipment.

We can guarantee the quality of our products because they are tested in our own modern testing laboratory, where we perform multiple quality tests such as physical testing, chemical testing, performance testing, etc.

All quality testing is carried out in the production department, where our high-end products are produced. In addition, our medium pressure air compressors, high pressure air compressors, piston air compressors, centrifugal air compressors, etc. have also passed CE and TUV certification.