Definitions
SCF: measured at 14.7 psia and 60˚F
SCF: Standard cubic feet
SCFM: Standard cubic feet per minute
SCFH: Standard cubic feet per hour
PSI: Pounds per square inch
PSIG: Pounds per square inch gauge
PSIA: Pounds per square inch absolute
ATM: One atmosphere: 14.7 PSI
Nm3: Normal cubic meter
Nm3/H: Normal cubic meters per hour
Bar: 14.504 PSI
Kg: Kilogram
Kg/cm2: Kilogram per centimeter
squared: 14.22 PSI
Kg/H: Kilogram per hour
KPA: KiloPascals: 0.145 PSI
MPA: MegaPascals: 145 PSI
STPD: Short Tons per (24 hr.) day
MTPD: Metric Tons per (24 hr.) day
HP: Horsepower
K

Atmospheric air contains essentially 78% nitrogen and 21% oxygen. Ordinary dry compressed air is filtered and passed through a technically advanced bundle of hollow membrane fibers where nitrogen is separated from the feed air by selective permeation. Water vapor and oxygen rapidly permeate safely to the atmosphere, while the nitrogen gas is discharged under pressure into the distribution system. Pressure, flow rate and membrane size/quantity are the main variables that affect nitrogen production. Nitrogen purity (oxygen content) is controlled by throttling the outlet from the membrane bundle(

Oxygen uses
The uses of oxygen are varied .oxygen is used in puland paper manufacturing,ceramic creation,glass making and petroleum processing ,It is also part of pharmaceuticals.
Oxygen is used extensively in medicine,high altitude flying, deep-sea diving and a power source in the space programs.Industry applications include utilization with acetylene,propane,hydrogen and other fuel gases for such purposes as metal cutting,welding,hardening and scarfing.

One of its major uses is in production of synthesis gas which is used to make gasoline, methanol and ammonia ,It is also used in produc

CATEGORY	DETAILS
 	 
Chemical Name	N2O
Offered Purity	99.5% and above
Packaging    	Cylinder capacity of following types:
                                A type (1.74 m3)
                                D type (17.1m3)
Portable cryogenic containers
Application	:It is supplied to various surgical suites for its anesthetic functions during pre-operative procedures.
Cylinder Colour	Blue

In commerce, liquid oxygen is classified as an industrial gas and is widely used for industrial and medical purposes. Liquid oxygen is obtained from the oxygen found naturally in air by fractional distillation in a cryogenic air separation plant.
Liquid oxygen is a common cryogenic liquid oxidizer propellant for spacecraft rocket applications, usually in combination with liquid hydrogen, kerosene or methane. Liquid oxygen is useful in this role because it creates a high specific impulse.[citation needed] It was used in the very first rocket applications like the V2 missile (under the name A-S

液态氮  Liquid Nitrogen (LIN)
液态氧  Liquid Oxygen (LOX)
液态氩  Liquid Argon (LAR)
液态二氧化碳  Liquid Carbon Dioxide (LCO2)
液态氧化亚氮  Liquid Nitrous Oxide (LN2O)
乙炔 Acetylene
乙烯 Ethylene
氮气 Nitrogen Gas (N2)
氧气 Oxygen Gas (O2)
氩气 Argon Gas (Ar)
二氧化碳 Carbon Dioxide Gas (CO2)
氦气 Helium Gas (He)
氢气 Hydrogen Gas (N2)
液化天然气 Liquefied Natural Gas (LNG)
压缩天然气 Compressed Natural Gas (CNG)

Liquid oxygen has a pale blue color and is strongly paramagnetic; it can be suspended between the poles of a powerful horseshoe magnet.[1] Liquid oxygen has a density of 1.141 g/cm3 (1.141 kg/L or 1141 kg/m3) and is cryogenic with a freezing point of 54.36 K (−218.79 °C; −361.82 °F) and a boiling point of 90.19 K (−182.96 °C; −297.33 °F) at 101.325 kPa (760 mmHg). Liquid oxygen has an expansion ratio of 1:861 under 1 standard atmosphere (100 kPa) and 20 °C (68 °F),[2][3] and because of this, it is used in some commercial and military aircraft as transportable source of breathing oxygen.
Becau

Air separation unit Process Description
1. Air Compressor-Low Pressure
Air is compressed at a low pressure of 5.0 bar (0.5mpa). 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 8deg c before it enters the purifier.
3. Purification of Air by Purifier
The air enters a purifier consisting of twin Molecular Sieve driers, workin

1) the oil is infiltrated or stained in the bottle, and then it is exposed to oxygen, which makes the heat and the temperature rise very high, and the pressure in the bottle is increased. An explosion occurs when the cylinder stress limit is exceeded. At the same time, the cylinder will also have a strong oxidation. According to the information, the oxygen pressure exceeds 3MPa, the oil and oxygen direct contact may be spontaneous combustion.
2) will be filled with other flammable gas or liquid bottles mistakenly used to charge oxygen. User self modification of cylinder, the hydrogen cylind

The main causes of physical explosion of oxygen cylinders are:
1) filling pressure is too high, exceeding the allowable pressure requirements.
2) cylinders filled to the specified pressure and cylinders for close to heat source or in the sun exposure, and heating temperature, pressure increases until more than a than the explosion limit.
3) the inner and outer surface of the bottle is corroded, the wall is thinned and the strength is decreased.
4 cylinders) beat, hit in the transport, handling process, mechanical injury.
5) gas cylinders material does not conform to the requirements, or m