Liquid Oxygen/Nitrogen Plants

We along with the team of cryogenic engineers of Cryofusion and Mandressi Italia have more than 50 years of experience in the field of Design, Manufacturing, Installation and Commissioning of all types of Oxygen - Nitrogen Air Separation Plants all over the world with a vast range capacities from 20 m3 per hour to 20,000 m3 per hour.

The cryogenic liquid Oxygen/Nitrogen plant available in size from 50 m³/hr (70 liter/hour) to 500 cum/hr (700 liters/hour) capacity. It is safe and efficient to operate and the oxygen confirms to North American and European Pharma copia and standards.

The output of Liquid Oxygen can be stored in a liquid oxygen tank. Liquid Nitrogen can be available as a by product simultaneously up to 99.99% (PPM GRADE) purity.

The plant is extremely versatile and all the possible product variants are possible you can either take 100% Liquid oxygen out put or 50% Liquid oxygen output directly into cylinders or 50% Liquid oxygen and 50% Liquid nitrogen.

Process Description

STEP I:	Air is sucked by a multi stage air compressor and passed through the following stages.
STEP II:	COMPRESSION OF AIR This is performed by the multistage highly efficient air compressor.
STEP III:	PURIFICATION OF AIR This is performed by the Process Skid.
STEP IV:	COOLING & LIQUIFICATION OF AIR This is performed by a highly efficient expansion engine and also by a refrigeration unit (for 100% liquid output).
STEP V:	AIR SEPARATION (RECTIFICATION) This is performed by the special AIR SEPARATION UNIT consisting of upper column, lower column and special exchangers. The separation air is by the CRYOGENIC PROCESS. The final product from a liquid Oxygen/Nitrogen goes to the storage tank.
STEP VI:	CRYOGENIC STORAGE TANKS Cryogenic Vessels are designed for storage and transport of liquid gases at sub-zero temperatures. Manufacturing of such cryogenic tanks requires special technical know how and sophisticated fabrication techniques. We have developed the necessary technology and has been manufacturing cryogenic vessels.

S.NO	MODEL	BDML 50	BDML 100	BDML 200	BDML 300	BDML 500
1	CAPACITY (Product Options)	CuM/Hr.	CuM/Hr.	CuM/Hr.	CuM/Hr.	CuM/Hr.
2	A OXYGEN LIQUID 100%	50	100	200	300	500
3	NITROGEN GAS (0.1kg/m2)	200	300	800	1200	2000
4	B OXYGEN LIQUID 50%	25	50	100	150	250
5	OXYGEN GAS 50%	25	50	100	150	250
6	NITROGEN GAS	200	300	800	1200	2000
7	C OXYGEN GAS AT 50%	25	50	100	150	250
8	NITROGEN LIQUID 50%	25	50	100	150	250
9	NITROGEN GAS	200	300	800	1200	2000
10	C OXYGEN LIQUID 50%	25	50	100	150	250
11	NITROGEN LIQUID 50%	25	50	100	150	250
12	NITROGEN GAS	200	300	800	1200	2000
13	PURITY OXYGEN	99.6%	99.6%	99.6%	99.6%	99.6%
14	NITROGEN (OPTIONAL up to 99.999%)	96%-99.9%	96%-99.9%	96%-99.9%	96%-99.9%	96%-99.9%
15	POWER CONNECTED	125 KW	250V KW	390 KW	500 KW	950KW
16	POWER CONSUMED (abt.)
17	A 50% GAS 50% LIQUID	70KW	125KW	240KW	350KW	600KW
18	B 100% LIQUID	90KW	150 KW	280KW	400KW	700KW
19	POWER SUPPLY	415 Volts	415 Volts	415 Volts	415 Volts	415 Volts
20	AIR CAPACITY	300 Cum/Hr.	600 Cum/Hr.	1200 Cum/Hr.	1800 Cum/Hr.	3000 Cum/Hr.
21	STARTING PRESSURE	65 Kg/sq.cm	65 Kg/sq.cm	65 Kg/sq.cm	60 Kg/sq.cm	60 Kg/sq.cm
22	WORKING PRESSURE (abt)
23	A 50% GAS 50% LIQUID	60 Kg/sq.cm	60 Kg/sq.cm	60 Kg/sq.cm	55 Kg/sq.cm	50 Kg/sq.cm
24	B 100% LIQUID	100 Kg/sq.cm	95 Kg/sq.cm	90 Kg/sq.cm	90 Kg/sq.cm	90 Kg/sq.cm
25	STARTING TIME (AFTER DEFROST)	7 Hours.	6 Hours.	6 Hours.	5 Hours.	5 Hours.
26	STARTING TIME (AFTER TRIPPING)	40 Mts.	20 Mts.	20 Mts.	20 Mts.	20 Mts.
27	AREAS REQUIRED (A x B)	8MX12M	14MX15M	14MX15M	14MX15M	14MX15M
28	ASSEMBLY HEIGHT	7.5 M	9.5 M	9.5 M	9.5 M	10 M
29	WEIGHT (ABOUT)	19 TONS	30 TONS	50 TONS	60 TONS	80 TONS
30	AIR SEPARATION COLUMN	TYPE-BDM	TYPE-BDM	TYPE-BDM	TYPE-BDM	TYPE-BDM

Air Compressor
This is a multi stage, heavy duty water-cooled air compressor for 24 hours operation , horizontal type complete with fly wheel inter cooler, foundation bolts, motor pulley, motor, v belt, guard and slide rails. This is used to compress atmospheric air.

Air Purifier / Process Skid
This consists of the following Parts:

1. After cooler with tank
2. Nitrogen cooler with tank
3. Moisture separators
4. Chilling units with Freon unit
5. Oil absorber filled with alumina
6. Molecular sieve batteries on skid
7. Defrost heaters
8. Gas/Air/water line as per standard layout on skid /platform prefabricated and ready for installation
9. Water pump
10. Inlet & outlet water lines
11. Drain manifold complete with ball valves for draining moisture. All the above equipments are properly mounted on skid /platform complete with interconnecting piping and ready for installation

Expansion Engine
Complete with branded motor/starter of Siemens / ABB world class quality. Expansion Engine is complete with hydraulic valve control, bursting disc for safety, complete with fly wheel pressure gauge, motor pulley V belt, Belt guard, slide rails inter connected pipes (inlet and outlet)

Air Separation Column - Cold Box
This consist of the complete cold box (outer steel casing) complete with top column, bottom column, condenser, sub-cooler, re-boiler, exchanger 1, exchanger 2, control panel, instruments, pressure gauges, digital automatic temperature scanner withpt-100 sensors, expansion valves, analysis valves, inlet & outlet, air oxygen and nitrogen, gas lines with control valves neatly mounted and firmly fixed on the cold box.

STAINLESS STEEL IS REQUIRED FOR HOSPITAL OXYGEN, FOOD GRADE QUALITY AND ALSO TO MAKE EXPLOSION PROOF.

NOTE: OLD TYPE OF COPPER VESSELS/COLUMNS/TRAYS LIKE CHINESE AND LOCAL TYPE DISCONTINUED 10 YEARS BACK.

Liquid Oxygen Pump
Horizontal single acting pump with Piston, Piston Rings - oil free - Teflon with guide ring, Safety Devices, Non-Return Valves, Motor with Pulley, V-Belts, Belt Guard, Inter Connecting Pipes with ducting to cold box suitable for filling Oxygen.

High Pressure Filling Manifold
For filling high-pressure Oxygen to Cylinders. It consists of main High Pressure Isolation Valve and Pigtail filling connection with individual regulation Valve with Pressure Gauge and Safety Relief Valve.

ACCESSORIES (INCLUDED)

Cooling Tower
Induced Draft-Rotary Sprinkler type with Aluminum Casting Fan, FRP Body with suitable Electric Motor for maintaining the circulating water temperature between the Hot well and Cold well for optimum performance of the Plant. Complete in all respects.

Electrical Panel
Electrical Panel for supply of electric power to individual motors with main MCCB, ampere and volt meter and bus bar. It has a bank of on/off switches and fuses. This enables the Operator to control all the Motors from one point (This can be supplied with remote control operation also).

WATER SOFTENER
Made of HDPE having single multi-port valve for different plant valve for different operations. Used to remove hardness of the water and to avoid scaling in Air Compressor Cylinder jacket and water line. Nacl/Regeneration. With min/max. Working pressure in 2.0/4.0 kgs/cm2. Complete in all respect

WATER PUMP
Provided with the plant to be coupled with the Air compressor and the cooling tower.

ANALYZER
Oxygen Purity Apparatus will be provided along with to measure the purity of Oxygen.