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Universal in Collaboration with ING.L.A. BOS CHI Italy SINCE 1930 manufactures & suppliers Premium Quality low pressure Air separation plants of all sizes ranging from 50m3/hour to 50,000m3/hour including Cryogenic Tonnage gas plants and liquid plants.

Dr. Boschi (Italy) at New Delhi Press Conference OEM Supplier from Switzerland	OEM Supplier from Switzerland

With state of the art designs and technology from Europe, established manufacturing facilities spread out in various locations all over India & Asia and sales located in New Corporate Region (NCR) of Delhi, the Italy based company is dedicated to supplying the latest in Cryogenic Technology constantly striving to improve its products through continuous research and development.

Universal is a certified ISO 9001:2000 organization and the latest achievement includes the successful approval for CE Certification which makes our company the first in Asia to certified for Cryogenic Pressure vessel ,Plant machinery exports to Europe and USA. We have success in the low Pressure plants as it is the technology of today and the future. We have manufactured over 300plants since last 23 years since 1985 at New Delhi and supplied to over 40 countries world wide.

Medium Capacity Pure Nitrogen Plant (32 TPD TO 320 TPD)

Range 1,000 TO 15,000m3/hr
Purity oxygen -99.6% .Nitrogen -99.99% or 3PPM
Operating Air Pressure- 0.6 TO 0.7Mpa

Air Compressor	Purification Unit	Air Separation Unit

Turbo Expander	Control Panel

Small Capacity Pure Nitrogen Plants

Range 1,000 TO 15,000m3/hr
Purity oxygen -99.6% .Nitrogen -99.99% or 3PPM
Operating Air Pressure- 0.6 TO 0.7Mpa

Air Compressor	Pre-Cooler+Purification Unit

Air Separation Unit	Turbo Expander	Control Panel

Power Consumption : Air Compressor Power + Pre-Cooling + Electro-Heater of Molecular Sieve.
Green-Item is Molecular Sieve Absorber Waste Gas Expansion.
Blue-Item is Molecular Sieve Absorber Air Expansion

Al AC PC PU P1/2 H

Air Filter Air Compressor Pre-Cooling Unit Purification Unit MTower1/Tower2 Heater

EX TE1/2 E2 C1 CR C2

Main Heat Exchanger Turbo Expander Sub Cooler Column Condensor Reboiler Low Pressure Column

Technical Data

Production	Oxygen	Nitrogen	Argon
Purity	99.6%	99.9%-99.99% or 3ppm	99.5% or5ppm
Air Pressure	0.7Mpa/7Bar
Normal operating pressure of plant	0.6 To 0.7Mpa	0.6 To 0.7Mpa	0.6 To 0.7Mpa
Power Consumption for oxygen	0.5 To 0.8 KWh/m	Nil	Negligible

Basic Principle

The air separation plant is a plant recovering oxygen and nitrogen from air simultaneously. It advance low pressure technology process of Boschi Italy using Rotary screw compressor (or low oil free piston compressor)and turbo expanders.

The feed air entering the Molecular Sieve purification system employed to remove the moisture and Co2 from the process air. The air is liquefied by cryogenic cooling using latest plate and fin high efficiency heat exchangers and turbo expanders. The liquid air separates into oxygen nitrogen and inert gases in the air separation column.

Al AC PC PU P1/2 H

Air Filter Air Compressor Pre-Cooling Unit Refrigerating Unit Tower1/Tower2 Heater

TE1/2 EX1 EX2 C1 CR

Turbo Expander Main Heat Exchanger Sub Cooler Column Condensor Reboiler

Process Description

1. Air Compressor-Low Pressure
Air is compressed at a very pressure of 5-7 bar (kg/cm2). Air can be compressed at such low pressure by trouble free rotary compressor (Screw / Centrifugal Type advanced technology is employed in lieu of old bulky piston compressor)

2. Pre Cooling System
The second stage of the process uses a low pressure refrigerant for pre-cooling the processed air to temperature around 12 deg C before it enters the purifier.

3. Purification of Air by Purifier
The air enters a purifier consisting of twin Molecular Sieve driers, working alternatively. The Molecular Sieves remove the Carbon dioxide & moisture from the processed air before the air enters Air Separation Unit.

4. Cryogenic Cooling of Air by Turbo (Expander)
The air has to be cooled to sub zero temperatures for liquification & the cryogenic refrigeration & the cooling is provided by highly efficient turbo expander, which cools the air to temperature almost below -165 to-170 deg C

5. Separation If Liquid Air Into Oxygen and Nitrogen by Air Separation Column
Oil free, moisture free and Carbon Dioxide free air enters into low pressure fin type HEAT EXCHANGER where the air is cooled below sub zero temperatures by air expansion process in the turbo expander.

Air gets liquefied when it enters the air separation column & gets separated into oxygen & nitrogen by the process of rectification.

Nitrogen gas is available at the outlet at purity of 99.99% upto 3ppm (lppm in some models)

Liquid nitrogen is also available alongwith the pure nitrogen gas products.

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