Liquid Oxygen Plants

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.

Low pressure liquid oxygen

Plant model	capacity (m3 / hr. )	purity (%)	operational pressure  (bar)	filling pressure (bar)
lp-lox 100	100 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 150	150 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 200	200 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 300	300 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox500	500 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 600	600 m3	oxygen: 99. 7% nitrogen: 99. 9%to 99. 99%	6-7	155
lp-lox 800	800 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 900	900 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 1000	1000 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox1500	1500 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155
lp-lox 2000	2000 m3	oxygen: 99. 7% nitrogen: 99. 9% to 99. 99%	6-7	155

Medium pressure liquid oxygen

Plantmodel	capacity(m3/hr. )	purity (%)	operational pressure (bar)
UBL-25	25 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-30	30 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-50	50 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-80	80 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-100	100 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-150	150 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-200	200 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-300	300 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-400	400 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40
UBL-500	500 m3	oxygen: 99. 7% nitrogen: 99. 9 to 99. 99%	36-40

• Unique Stainless Steel Column : Using Flanged connections and Argon welded column for easy Accessibility & Servicing.

• Only One Operator required for supervision of the entire Plant.

•  Molecular Sieves of Zeochem Switzerland of Special Grade for Total Carbon Dioxide, Moisture and Hydrocarbon Removal.

•  Efficient Heat Exchange to attain Minimum Power Consumption and hence minimizing Cost of Operation.

• Skid Mounted Technology : Makes the plant Compact and Easy to Install.

• Built in Liquid Oxygen Pump For High Pressure Oxygen Filling.

• Built in Integral Gas Vaporizer to increase the efficiency of the plant.

•  Medical Grade Oxygen due to Stainless Steel Column as Per American/European Pharmacopoeia.

• Special Cross-Flow design
Stainless Steel Trays For high Purity gas production

• Extremely Safe to Use And Simple Operate.
• Digital Oxygen Online Purity Analyzer.

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 with pt-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.

Our premium liquid oxygen plants find wide application in varied industries such as water process, gas nitrogen plants, chemical & many other industries.