Oxygen compressor

Lubricants. Glycerol can be used as a lubricant in places where an oil would fad. It is recommended for oxygen compressors because it is more resistant to oxidation than mineral ods. It is also used to lubricate pumps and bearings exposed to fluids such as gasoline and benzene, which would... 

Halogenated hydrocarbons that are inexpensive sometimes are used alone or in blends with phosphate esters as fire-resistant hydrauHc fluids. Other halogenated fluids are used for oxygen-compressor lubricants, lubricants for vacuum pumps that are in contact with corrosive materials, solvent-resistant lubricants, and other lubricant appHcations where highly corrosive or reactive materials are being handled. 

Halocarbon 27 3.7 30 -18 none oxygen compressors, Hquid-oxygen... 

Refs. [i] JoshiAV,NachlasJA, Stuffle K (1991) Int Patent Application WO 91/06691 [ii] Drevet C, Renault M, FegerD, Fouletier J (1997) A solid state electrochemical oxygen compressor. In Anderson HU, Khand-kar AC, Liu M (eds) Ceramic membranes I. The Electrochemical Society, Pennington, pp 309-314... 

This design has been a standard in the industry for many years due to its simplicity and ease of operation. In the last 10 years pumped LOX designs which eliminate the oxygen compressor have become favored for safety and cost reasons. 

The relative overall efficiency of the pumped LOX cycles vs. the LP cycle is a function of product pressure and the ef cienc y differences between the oxygen compressor and the air booster. Typically, the power consumption of both cycles is comparable. At higher pressures the pump work becomes more significant. The pumped LOX cycle is typically lower cost, due to the elimination of the oxygen compressor. 

Oxygen compressors are generally located within a building that contains an external barrier. This barrier provides some containment in the rare event that an oxygen fire takes place. 

G-4.6 Oxygen Compressor Installation Guide. Standard for current industrial practices for oxygen compressor installations, operations, maintenance, and safety (14 pages). 

The safe operation of an oxygen compressor requires elaborate and expensive safety measures to avoid heat development caused by mechanical friction. In an oxygen-rich environment this could lead to a sudden exothermal combustion of the material in contact with oxygen. The higher the 02-pressure, the lower the amount of heat required for the ignition (see also Section 2.3). 

Rectification column (low-pressure section) (5) Combined condenser-evaporator unit (6) Booster air compressor (7) Internal compression pump (8) Oxygen compressor, (a, b) Internal process flows (c) Gaseous pressurized oxygen (d) Low-pressure products. 

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