Manufacturing Process
Our production unit is well-equipped with state-of-the-art technology and machinery.
Our engineers ensure that production process flows uninterruptedly for quality
products. The manufacturing process of Oxygen Nitrogen plant is complex and
requires a strict vigil throughout. The manufacturing process has various stages
as follows:-
Stage 1 - Compression Air
The free saturated air is sucked from atmosphere through a highly efficient
dry-type suction filter into the first stage of the horizontal balanced opposed,
lubricated reciprocating air compressor. Compressed air is chilled to 12 degree
centigrade in a chilling unit at a temperature of 12 degree centigrade in
a moisture separator where the condensed moisture gets removed before entering
into Molecular Sieve Battery. Before sending the air to Molecular Sieve Battery,
air is passed through an Oil Absorber where air becomes oil free.
Stage 2- Purification of Air
Chilled air passes through the Molecular Sieve Battery consisting of Twin
Tower packed with Molecular Sieves to remove moisture and Carbon dioxide present
in the air.
Molecular Sieve Battery operates on Twin Tower System. When one tower is
under production the, other tower is regenerated by passing waste Nitrogen
gas at 200 degree Centigrade through a reactivation heater. After interval
of 8 to 10 hours, the tower under production gets exhausted and regenerated
by similar process before use and thus the cycle continues. Any dust particles
gets filtered in the DUST Filter before air enters the AIR SEPARATION COLUMN.
Stage 3- Air Separation
Chilled, Oil-free and moisture free air enters into multi-pass Heat Exchanger
No. I where it gets cooled to (-80) Degree Centigrade by cold gained from
outgoing waste Nitrogen and Oxygen.
A part of this air enters a multi-pass Heat Exchanger No. II or Liquefier
made of special Alloy tubes. This air cools to (-170) Degree Centigrade before
passing through an expansion valve. Due to joule Thompson Effect, after the
expansion valve, air gets further cooled down and gets liquefied before entering
into bottom column which then is known as Rich Liquid.
The Rich Liquid in the Bottom Column enters into feed tray of top column
enters. Similarly the liquid nitrogen called Poor Liquid enters into top column
as a reflux & it takes away the heat of condensing Oxygen and gets vaporized
whereas the liquid Oxygen flows down the trays of the Top Column into the
Condenser and then passes through a Sub-Cooler to a Liquid Oxygen Pump.
Stage 4- Gasified Oxygen
Liquid oxygen pump, pumps Liquid Oxygen through heat exchanger no. II and
I, where liquid Oxygen gets gasified before filling in Cylinders in the Filling
Manifold. The pure bone dry Oxygen gas at ambient temperature and high pressure
is filled into Oxygen Cylinders through manifold valves by means of the highly
efficient reciprocating Liquid Oxygen Pump.
Stage 4- Nitrogen Production
Nitrogen can be produced both in gaseous as well as liquid form simultaneously
without additional cost. Both commercial as well as technical grade can be
produced.
Contact Us
ING. L&A. Boschi (India)
R-19, Hauz Khas Enclave
New Delhi - 110016, India
Phone: +(91)-(124)-4386250 ; (International calls only)
Mobile: +(00)-(91)-9810626301 (+(00)-(91)-9871872626 International marketing calls only)
Fax: +(00)-(91)-9810626301 (+(00)-(91)-9871872626 International marketing calls only)
Email: info@universalo2.com,
info@universalboschi.com
Postal Address
A104/2, Okhla Industrial Area Phase - II,
New Delhi - 110020. India.
About Us
