Air Separation Unit

We manufacture and sell our own air separation system, and we offer the most affordable cryogenic air separation plant capital cost. Our air separating plants that create liquefied industrial gas use cryogenic technology. With a team of engineers who are technologically seasoned, we have established ourselves as one of the leading manufacturers of air separation plants in India.

The equipment that makes up our ASU plant is as follows:

• Heat exchanger of the plate type
• Column of medium pressure
• Low-pressure column
• Turbine for expansion
• Air liquefier
• Sub-cooler with a high concentration of liquid
• Sub-cooler
• Separator for liquid nitrogen
• Separator for liquid oxygen

Our facilities are capable of producing high-purity oxygen gas at a concentration of up to 99.7% and nitrogen gas at a concentration of up to 99.99%. Automated air separation facilities are in high demand, with a range of capabilities that extend from 50 m3/hr to 5000 m3/hr.

Features of Air Separation Unit Plant

• A few of the most recent technological features integrated into the Oxygen and Nitrogen plants are described below.
• The purity of oxygen produced by all plants is at least 99.7%, and nitrogen purity can range from 1-3 PPM (depending on the customer's requirements).
• All plants use "oil-free" rotary screw/centrifugal oil compressors with a working pressure of 5-7 bar.
• To maximise efficiency, all plants use aluminum-brazed exchangers and packed columns.
• Turbo expanders (GAS Bearings) ensure trouble-free operation.
• All plants exceeding "500M3/HOUR" can be supplied with automatic PLC control.
• Our organisation provides engineering support and thorough quality control.
• We provide qualified engineers to supervise, install, and set up all of our plants, as well as workforce training on the customer's premises.
• The machines consume very little electricity, have proven performance, and require essentially no maintenance.
• 100% dependability for oxygen gas quality in industrial and clinical settings.

With technically qualified engineers and well-equipped production units, Sanghi Oxygen has successfully manufactured and exported acetylene generators that meet CE norms and ISO standards. Our engineers possess not only technical qualifications but also extensive experience in the design, installation, erection, and commissioning of plants with varying capacities.

Sanghi Oxygen has produced and exported a dissolved acetylene generator that stands out for its durability, reliability, and usefulness. We consistently enhance our products to ensure they align with international brands. For additional details regarding our products and services, please reach out to our customer care representatives. They are available around the clock to address the daily queries of our customers.

Cryogenic Air Separation Process

The cryogenic air separation plant production process is the most successful air separation process, practiced constantly in medium to large scale gas production plants. It is the most adopted technology for the generation of nitrogen (N2), oxygen (O2), and argon (AR) as gases and/ or liquid gases and thought to be the most cost-effective technology for high production rate plants.

Cryogenic Air Modification

• The pressure column's cooled and liquefied air is pre-separated into oxygen-enriched liquid in the sump and pure nitrogen gas at the top.
• The condenser/reboiler liquefies pure nitrogen gas against boiling oxygen in the sump of the low-pressure column. Liquefied nitrogen serves as the reflux for the pressure column and (after sub-cooling) the low-pressure column.
• The low-pressure column separates the oxygen-enriched liquid into pure oxygen in the bottom and nitrogen waste gas at the top.

Our ASU Plants are designed to create the purest oxygen and argon from the air by concentrating, chilling, liquefying, and distilling air columns. Cryogenic rectification separates air to produce oxygen, nitrogen, argon, and rare gases such as krypton, xenon, helium, and neon. The results can be obtained in gaseous form for pipeline delivery or in cryogenic liquid form for storage and delivery by truck. The cryogenic air separation technique is one of the most effective, and it is commonly used in medium to large-scale enterprises.

Producing Pure Oxygen

Cost-optimized procedure for small- and medium-sized oxygen production facilities, wherein a gas stream from the low-pressure column is introduced into the plant, similar to the traditional manufacturing process. The gas stream is devoid of nitrogen due to improved packing. Consequently, only the residual oxygen is harvested for use in the plant, thereby maintaining oxygen purity and recovery at levels comparable to those in the conventional process. The supplementary pure oxygen column is no longer necessary.