Oxygen Plant

Oxygen finds broad application in different technological processes and in almost all sector branches. The primary oxygen application is associated with its capability of sustaining burning process, and the powerful oxidant properties. Due to that, oxygen has grow to widely used within the metal processing, welding, cutting and brazing processes. Within the chemical and petrochemical industries, as well as within the oil and gas sector oxygen is used in commercial volumes as an oxidizer in chemical reactions. Metal gas welding, cutting and brazing.

The use of oxygen in gas-flame operations, for example metal welding, cutting and brazing is one regarding the greatest significant and common applications of this gas. Oxygen allows generating high-temperature flame in welding torches thus ensuring high quality and velocity of work performance. Oxygen is heavily used within the metal sector where it helps to increase burning heat by the production of ferrous and non-ferrous metals and significantly improve the overall process efficiency. Another important oxygen application within the metal sector is connected with its use for carbon fixation together with the yield of carbon dioxide. Chemical and petrochemical industries.

In the chemical and petrochemical industries, oxygen is widely used for oxidation of raw chemicals for recovery of nitric acid, ethylene oxide, propylene oxide, vinyl chloride and other important chemical compounds. In the oil and gas industry, oxygen finds application like a means for viscosity improvement and enhancement of oil-and-gas flow properties. Oxygen shall also be used for boosting production capacity of oil cracking plants, efficiency of high-octane components processing, as well as for the reduction of sulfuric deposits in refineries. The use of oxygen within the fish farming helps increase the survival and fertility ratios and reduce the incubation period. Along with fish culture, oxygen is applied for shrimps, crabs and mussels rearing.

In glass furnaces oxygen is effectively used for burning heat increase and burning processes improvement. The use of oxygen in incinerators allows to significantly increase flame heat and eventually make sure that enhanced cost efficiency and incinerators production capacity. Adsorption technology. Type of performance on semitrailer. Gas separation by adsorption processes is based on the fixation of different gas mix components by a solid substance called adsorbent.

Physically, this phenomenon is brought about by the forces of gas and adsorbent molecules interaction. Functional diagram of work of oxygen plant. Heat and compression influence. The current methods of gaseous oxygen production from space together with the use of adsorption technology are nearly brought to perfection. The procedure of a technological oxygen adsorption plant is based on the dependence of gas intake by adsorbent on the heat and partial compression of a gas component.

The gas adsorption and adsorbent regeneration processes shall that is why be regulated by varying regarding the compression and heat parameters. Compression swing adsorption. The oxygen plant flow process is arranged in such a method that highly absorbable gas mix components are taken in by adsorbent, while little absorbable and non-absorbable components leave through the plant. Today, there exist 3 methods of arranging the adsorption-based space separation process together with the use of swing technologies: compression PSA, vacuum VSA and mixed VPSA ones. Within the compression swing adsorption flow processes, oxygen is recovered below above-atmospheric compression and regeneration is achieved below atmospheric pressure.

In vacuum swing adsorption flow processes, oxygen is recovered below atmospheric pressure, and regeneration is achieved below negative pressure. The mixed processes procedure combines compression variations from positive to negative. Adsorption oxygen plants. The adsorption oxygen plants make six to 5,000 nm3 or hr of oxygen together with the purity if 93-95%. These processes designated for indoor procedure are set to effectively make gaseous oxygen from atmospheric air.

An unquestionable advantage of adsorption-based oxygen plants is the little cost of oxygen produced within the cases where there exists no rigid requirements to the product oxygen purity. Structurally, the adsorption oxygen plant consists of multiple adsorbers, the compressor unit, pre-purifier unit, valve system and the plant manage system. A simple adsorber is a column filled with layers of specially selected adsorbents granular substances preferentially adsorbing highly adsorbable components of a gas mixture. Where gaseous oxygen purity is compulsory at the position of 90-95% together with the capacity of up to 5,000 nm3 per hour, adsorption oxygen plants are the optimal choice. This oxygen purity shall also be obtained through the use of processes based on the cryogenic technology; however, cryogenic plants are more cumbersome and complex in operation.

Membrane oxygen equipment. Innovation technology available today. Some businesses make high-efficiency processes for oxygen production from atmospheric space together with the help of membrane technology. Membrane procedure principle. The basis of gas journalists separation together with the use of membrane processes is the difference in velocity with which different gas mix components permeate membrane substance.

The driving force behind the gas separation process is the difference in partial pressures on different membrane sides. A technological gas separation membrane used by GRASYS is no detailed a flat plate, but is formed by hollow fibers. Membrane consists of a porous polymer fiber together with the gas separation layer applied to its external surface. Structurally, a hollow fiber membrane is configured like a cylindrical cartridge representing a spool with specifically reeled polymer fiber. Compressor and vacuum technologies.

Due to the membrane fabric high permeability for oxygen in contrast to nitrogen, the creation of membrane oxygen complexes requires a special approach. Basically, there exists 3 membrane-based oxygen production technologies: compressor and vacuum ones. In the case of compressor technology, space is supplied into the fiber space below excess pressure, oxygen exits the membrane below slight excess pressure, and where necessary, is pressurized by booster compressor to the compulsory compression level. By the use of vacuum technology, a vacuum push is used for the achievement of partial pressures difference. Membrane oxygen plants.

Designed for indoor operation, membrane oxygen plants let efficient space enrichment with oxygen up to the concentration of 30-45%. The complexes are rated to six to 5,000 nm3 or hr of oxygenated air. In the membrane oxygen plant, gas separation is achieved within the gas separation module composed of hollow-fiber membranes and representing the plant critical and high-technology unit. Apart from the gas separation unit, other important technical components are the booster compressor or vacuum pump, pre-purifier unit, and the plant manage system. The adoption of membrane processes for space enrichment purposes promises multiple oxygen savings where the oxygen concentration of 30-45% is sufficient to close process needs.

In addition to customer saving on the product oxygen cost, there is a collateral economic effect based on extremely little operating costs. With the incorporation regarding the membrane technology, oxygen plants have outstanding technical characteristics. Membrane oxygen plants are highly reliable due to the absence of moving components within the gas separation module. The processes are very simple in procedure manage of all operating parameters is carried out automatically. Due to the fact that regarding the plants high automation degree, no constant manned attendance is compulsory during its operation.

Membrane oxygen plants are finding increasingly broad application in different industries all over the world. With moderate requirements to oxygen purity in product - up to 30-45%, membrane processes generally prove more economically sound than adsorption and cryogenic systems. Besides, membrane plants are many simpler in procedure and more reliable. Advantages of adsorption and membrane oxygen plants. Complete automation and simplicity of operation;.

No manned attendance compulsory during operation;. Enhanced failure well-being and reliability;. Quick begin and stop;. Moderate dimensions and light weight;. Extended operational life;.

No special workshop requirements;. Easy installation and integration into an existing space system. Relativity little oxygen purity - 93-95% for adsorption and 30-45% for membrane plants;. Oxywise Oxygen and Nitrogen PSA gas Generator system. Categories: OxygenHidden categories: Orphaned articles from February 2009 | All orphaned articles | Articles lacking sources from February 2009 | All articles lacking sources.