Universal Industrial Plants Manufacturing Co
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Air Seperation Plant Manufacturing Company
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Oxygen Plant Pure Nitrogen Plant





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Pure Nitrogen Plant

Universal Boschi in collaboration with manufactures & suppliers premium quality oxygen plants of all sizes ranging from 20m3/hour to 10,000m3/hour ING.L.A. BOSCHI ITALY since 1930. Our oxygen/nitrogen plants are being manufactured as per the latest technology & design of the Company ING. L. & A., BOSCHI, ITALY since 1930. This technology has been proven all over the world for its working efficiency & trouble free operation. We have manufactured over 300 plants since last 30 years since 1985 at New Delhi and supplied to over 40 countries worldwide.

Technical Data
Technical Specifications of Pure Nitrogen Gas Plant with Liquid Backup
MODEL GAS NITROGEN CAPACITY(Nm3/hour) LIQUID NITROGEN CAPACITY(Litre/hour) PURITY
UBTN-150/10L 150 10 99.99999%
UBTN-200/20L 200 20 99.99999%
UBTN-300/25L 300 25 99.99999%
UBTN-500/30L 500 30 99.99999%
UBTN-800/40L 800 40 99.99999%
UBTN-800/40L 800 40 99.99999%
UBTN-1000/40L 1000 40 99.99999%
UBTN-1000/50L 1000 50 99.99999%
UBTN-1100/40L 1100 40 99.99999%
UBTN-1500/120L 1500 120 99.99999%
UBTN-1600/50L 1600 50 99.99999%
UBTN-1600/70L 1600 70 99.99999%
UBTN-2000/70L 2000 70 99.99999%
UBTN-2400/60L 2400 60 99.99999%
UBTN-2400/70L 2400 70 99.99999%
UBTN-2400/110L 2400 110 99.99999%
UBTN-3000/100L 3000 100 99.99999%
UBTN-4500/400L 4500 400 99.99999%
UBTN-5600/155L 5600 155 99.99999%


moisture separator manufacturer

500 m3/hr Pure Nitrogen Production Plant

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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.

ING. L&A. Boschi (India)

Al Air Filter TE1/2 Turbo Expander
AC Air Compressor EX1 Main Heat Exchanger
PC Pre-Cooling Unit EX2 Sub Cooler
PU Refrigerating Unit C1 Column
P1/2 Tower1/Tower2 CR Condensor Reboiler
H Heater


ING. L&A. Boschi (India)
ING. L&A. Boschi (India)
ING. L&A. Boschi (India)
ING. L&A. Boschi (India)


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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Universal Industrial Plants Manufacturing Co.(P) Ltd.
Mr. Sanjiv Agrawal
A-104/2, Okhla Industrial Area, Phase - II
New Delhi - 110 020, Delhi, India
Phone :+(91)-(11)-41021294
Mobile : +(91)-9810626301
Email : info@universalboschi.com
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