Small Air Separation Plant
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Small Air Separation Plant

A small air separation plant is a highly integrated gas separation device designed for small and medium-scale industrial gas needs. It uses deep freezing and distillation technology to directly separate high-purity oxygen, nitrogen, argon and other products from the air.
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Product Introduction

A small air separation plant is a highly integrated gas separation device designed for small and medium-scale industrial gas needs. It uses deep freezing and distillation technology to directly separate high-purity oxygen, nitrogen, argon and other products from the air. Compared with traditional large-scale air separation plants, modern small air separation plants have become an ideal choice for many fields such as metal processing, chemical industry, medical, water treatment and electronics due to their compact modular design, fast start-up capability, excellent energy efficiency and highly automated operations. This system represents the perfect combination of flexibility, reliability and economy.

 

Core product features

Our small air separation plant series products embody cutting-edge cryogenic air separation technology and have the following outstanding advantages:

1. Modular and compact design: Factory-prefabricated modules greatly reduce on-site installation workload and floor space, enabling rapid deployment.

2. High automation and intelligence: Equipped with an advanced distributed control system to realize one-click start and stop, remote monitoring and fault diagnosis, significantly reducing dependence on operators.

3. Excellent energy efficiency: The use of high-efficiency turbine expanders and optimized process design can effectively reduce energy consumption per unit product and save long-term operating costs for customers.

4. Excellent reliability: The core components are selected from internationally renowned brands to ensure that the equipment can operate stably and continuously for a long time.

5. Flexible output configuration: The process flow focusing on nitrogen production or oxygen production can be customized according to the specific needs of customers, with a wide range of product purity and output adjustment.

 

Product Purity and Flow Range

Product Gas

Typical Purity Range

Standard Flow Range (Nm³/h)

Nitrogen (N₂)

≥ 99.5% ~ 99.999%

50 ~ 3,000

Oxygen (O₂)

≥ 90% ~ 99.6%

50 ~ 2,000

Argon (Ar)

≥ 99.5% (Requires additional configuration)

5 ~ 150

Note: The above are standard ranges. Specific parameters can be customized according to project requirements.

 

key performance indicators

  • Working pressure: The product nitrogen/oxygen outlet pressure can reach a maximum of 0.5 ~ 1.5 MPa (adjustable), meeting the pressure requirements of most gas points.
  • Dew point temperature: ≤ -70°C, ensuring extremely dry gas.
  • Start-up time: From start-up to production of qualified gas, it is usually within 8-24 hours, much faster than large air separation units.
  • Ambient temperature adaptation range: -20°C ~ +45°C, able to adapt to a variety of climate conditions.

 

Energy consumption index

We are committed to providing industry-leading low-energy solutions. Taking a typical 1000 Nm³/h 99.5% pure nitrogen equipment as an example, its unit energy consumption can be as low as 0.35 ~ 0.45 kWh/Nm³. Actual energy consumption will vary based on product purity, yield and specific configuration, and our engineers will provide accurate energy consumption analysis for each project.

 

Industry application cases

This high-performance small air separation plan has been successfully used in many industries around the world:

  • Metal heat treatment and processing: Protective gas used for bright annealing, brazing, sintering and other processes.
  • Chemical and petrochemical industry: used as process gas, material transport protective gas and reactor purge gas.
  • Electronics Manufacturing: Provides a high-purity nitrogen-protected environment for semiconductor and LCD panel production.
  • Medical and biopharmaceuticals: Produce medical oxygen and provide sterile protective gas for fermentation, packaging and other processes.
  • Water treatment and environmental protection: Ozone is prepared through an ozone generator for wastewater treatment and bleaching.
  • Food & Beverages: Used in nitrogen-filled packaging to preserve freshness and extend shelf life.

 

Detailed Technical Parameters (Example)

Item

Parameter Details

Process Technology

Cryogenic Distillation

Air Compressor

Oil-free screw type or centrifugal type (selected based on scale)

Pre-cooling System

High-efficiency evaporative cooler or chilled water unit

Purification System

Molecular sieve adsorption type, fully automatic switching and regeneration

Fractionation Tower System

High-efficiency structured packing tower, low resistance, high separation efficiency

Expander

High-efficiency turboexpander, isentropic efficiency > 80%

Control System

PLC + HMI fully automatic control, supports remote I/O and Ethernet communication

 

Certification and Quality Standards

We firmly believe that quality is the life of products. Therefore, our design and manufacturing process follows the strictest international standards:

  • ISO 9001:2015 - Quality management system certification ensures that every aspect from design to service is controllable and reliable.
  • ASME - Pressure vessels and piping systems are designed, manufactured and inspected in strict accordance with the ASME Boiler and Pressure Vessel Code to ensure intrinsic safety.

All major pressure-bearing components come with full material certificates and manufacturing records, ensuring product traceability.

 

Create certain value for your business

When you choose our small air separation plant from Shenger Gas, you get not only a set of equipment, but also a stable and efficient gas solution partner. We are committed to helping you optimize your production process, control operating costs, and ultimately enhance your competitiveness in the market through cutting-edge technology and reliable product performance. Let us use our professional technical strength and continuous after-sales service to lay a solid foundation for your gas supply guarantee and help you focus on the growth and development of your core business.

 

 

About us 

 

Zhejiang Shenger Gas Equipment Mlanufacturing Co., Ltd. was established in 2010, which is specialized in manufacturing PSA Oxygen Plant, PSA Nitrogen plant, Cryogenic air separation equipment, VPSA oxygen plant etc. The factory covers an area of 16,000 square meters, with a construction area of 10,000 square meters and an annual outputvalue of more than 80 milion yuan. lt is located in beautiful Hangzhou City, and is a private technology enterprise inZhejiang Province.

page-1000-666
 

 

Our factory & quipment

 

1
The produce of distillation column
2
The frame of cold box
3
the plate rolling in factory

 

 

Our Certifications

 

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