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 LADY GAGA Autographed LOVEGAME Vinyl Album ~ PSA DNA ~ 100% GUARANTEED AUTHENTIC US $385.00 
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 Peter Paul & Mary Signed "Album 1700" Vinyl PSA/DNA! US $45.00
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 GREGG ALLMAN & JAIMOE JOHANSON ALLMAN BROTHERS SIGNED ALBUM W/ VINYL PSA #Q51577 US $349.99
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 BRUCE SPRINGSTEEN TUNNEL OF LOVE SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q02736 US $699.99
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 GREGG ALLMAN THE ALLMAN BROTHERS SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51575 US $279.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52111 US $499.99
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 PAUL MCCARTNEY THE BEATLES PIPES OF PEACE SIGNED ALBUM COVER W/ VINYL PSA Q02738 US $1,499.99
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 SAMMY HAGAR MICHAEL ANTHONY ALEX VAN HALEN SIGNED ALBUM COVER / VINYL PSA Q51572 US $349.99
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 GREGG ALLMAN & JAIMOE JOHANSON ALLMAN BROTHERS SIGNED ALBUM W/ VINYL PSA #Q51578 US $349.99
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 BLACK SABBATH (4) OZZY OSBOURNE +3 SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q02740 US $999.99
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 ROGER WATERS PINK FLOYD ANIMALS SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51570 US $599.99
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 ROGER WATERS PINK FLOYD SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51568 US $599.99
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 METALLICA ULRICH, HAMMETT & TRUJILLO SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51573 US $399.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52103 US $499.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52106 US $499.99
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 AC/DC ANGUS/MALCOM YOUNG CLIFF & SIMON SIGNED ALBUM COVER W/ VINYL PSA #Q02744 US $449.99
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 MICK JONES THE CLASH SANDINISTA SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51574 US $299.99
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 GRATEFUL DEAD WEIR HART & KREUTZMANN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q51571 US $249.99
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 BRUCE SPRINGSTEEN BORN IN THE USA SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q02737 US $899.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52110 US $499.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52107 US $499.99
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 EDDIE VAN HALEN & ALEX VAN HALEN SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q52108 US $499.99
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 GREGG ALLMAN & JAIMOE JOHANSON ALLMAN BROTHERS SIGNED ALBUM W/ VINYL PSA #Q51579 US $349.99
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 Rose Royce Signed Vintage Vinyl Album PSA/DNA! NICE! US $45.00
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 Joan Baez Signed Gulf Winds 1976 Vinyl 12" LP PSA/DNA US $474.99
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 Joan Baez Signed The Best Of 1977 Vinyl 12" LP PSA/DNA US $474.99
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 Joan Baez Signed From Every Stage Vinyl 12" LP PSA/DNA US $474.99
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 ROD STEWART FOOT LOOSE & FANCY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43550 US $199.99
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 STEVEN TYLER ROCK IN A HARD PLACE SIGNED ALBUM COVER W/ VINYL PSA/DNA #H13901 US $249.99
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 JAMES TAYLOR JT SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43530 US $149.99
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 Joan Baez Signed Here's To Life Vinyl 12" LP PSA/DNA US $474.99
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 PAUL MCCARTNEY THE BEATLES SGT PEPPERS SIGNED ALBUM COVER W/ VINYL PSA #O03976 US $2,499.99
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 BB B B King In-Person Signed Autographed Vinyl LP Album PSA/DNA Proof US $199.99
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 George Jones In-Person Signed Autographed Vinyl LP Album PSA/DNA Proof Fantastic US $79.99
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 BONO JOSHUA TREE ALBUM SIGNED PSA DNA AUTOGRAPH SIGNED U2 BONO W VINYL HUGE @@K US $350.00
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 THE MONKEES (3) JONES DOLENZ & TORK SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q45791 US $699.99
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 THE MONKEES (3) JONES DOLENZ & TORK SIGNED ALBUM COVER W/ VINYL PSA/DNA #Q45790 US $699.99
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 BILLY IDOL REBEL YELL SIGNED ALBUM COVER W/ VINYL AUTOGRAPH PSA/DNA #L68051 US $139.99
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 WILLIE NELSON "LIVE" SIGNED ALBUM COVER W/ VINYL AUTOGRAPH PSA/DNA #L69395 US $124.99
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 U2 Bono The Edge signed autographed No Line LP PSA DNA COA 360 TOUR FRAMED vinyl US $1,275.00
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 THE STOOGES (4) IGGY POP, WATT & ASHETON SIGNED ALBUM COVER W/ VINYL PSA #Q02741 US $399.99
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 THE BEATLES PAUL MCCARTNEY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P00939 US $2,499.99
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 PAUL SIMON STILL CRAZY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43501 US $449.99
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 BILLY IDOL WHITE WEDDING SIGNED ALBUM COVER W/ VINYL PSA/DNA #L68053 US $149.99
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 WILLIE NELSON SWEET MEMORIES SIGNED ALBUM COVER W/ VINYL PSA/DNA #L69393 US $179.99
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 JOHN PAUL JONES LED ZEPPELN SIGNED ALBUM COVER W/ VINYL PSA/DNA #J59119 US $199.99
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 THE WHO (3) TOWNSHEND DALTRY & ENTWISTLE SIGNED ALBUM COVER W/ VINYL PSA #J27059 US $849.99
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 MOTLEY CRUE (4) SIXX MARS NEIL & LEE SIGNED ALBUM COVER W/ VINYL PSA/DNA #J33848 US $1,199.99
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 NEIL YOUNG TRANS SIGNED AUTHENTIC ALBUM COVER W/ VINYL PSA/DNA #K29711 US $849.99
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 CROSBY STILLS NASH & NEIL YOUNG SIGNED ALBUM COVER W/ VINYL PSA/DNA #K74681 US $2,499.99
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 CROSBY STILLS NASH & NEIL YOUNG SIGNED ALBUM COVER W/ VINYL PSA/DNA #J27058 US $2,499.99
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 B.B. KING THE SOUL OF B.B. KING SIGNED ALBUM COVER W/ VINYL PSA/DNA #L10404 US $499.99
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 B.B. KING IN LONDON SIGNED ALBUM COVER W/ VINYL PSA/DNA #J01163 US $499.99
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 B.B. KING FRIENDS SIGNED ALBUM COVER W/ VINYL PSA/DNA #P00931 US $499.99
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 B.B. KING THE GREAT B.B. KING SIGNED ALBUM COVER W/ VINYL PSA/DNA #L10405 US $499.99
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 TOM PETTY HEARTBREAKERS LONG AFTER DARK SIGNED ALBUM COVER W/ VINYL PSA #P53317 US $199.99
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 ERIC CLAPTON AUGUST SIGNED ALBUM COVER W/ VINYL PSA/DNA #P00929 US $999.99
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 BLACK SABBATH (4) OSBOURNE WARD BUTLER & IOMMI SIGNED ALBUM W/ VINYL PSA #M52395 US $1,199.99
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 BRUCE SPRINGSTEEN MAGIC SIGNED ALBUM COVER W/ VINYL PSA/DNA #I09881 US $799.99
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 BRUCE SPRINGSTEEN DEVILS & DUST SIGNED ALBUM COVER W/ VINYL PSA/DNA #H44147 US $799.99
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 ERIC CLAPTON "88" SIGNED TINA TURNER ALBUM VINYL PSA/DNA #H58029 US $999.99
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 TAYLOR LAUTNER signed red vinyl authenticate by PSA/DNA US $299.00
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 B.B. KING SIGNED PSA AUTHENTIC BLUES N JAZZ ALBUM w VINYL Mint Condition US $398.94
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 B.B. KING SIGNED ALBUM LP With Vinyl PSA AUTHENTIC #H11356 LA MIDNIGHT RARE US $398.95
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 BONO & THE EDGE U2 SIGNED ALBUM COVER W/ VINYL PSA/DNA #P35811 US $749.99
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 PETE TOWNSHEND THE WHO EMPTY GLASS SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43560 US $299.99
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 PETE TOWNSHEND WHITE CITY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43561 US $299.99
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 ROD STEWART BLONDES HAVE MORE FUN SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43519 US $199.99
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 JOHN ENTWISTLE ROGER DALTRY THE WHO SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43563 US $699.99
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 CHARLIE WATTS ROLLING STONES SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43576 US $299.99
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 ROGER WATERS PINK FLOYD SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43567 US $379.99
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 EDDIE VEDDER PEARL JAM VITALOGY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43512 US $799.99
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 ROD STEWART UNPLUGGED SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43520 US $199.99
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 ROD STEWART EVERY BEAT OF MY HEART SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43548 US $199.99
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 ROD STEWART BEST OF SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43518 US $199.99
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 ROD STEWART SHOT OF RHYTHM AND BLUES SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43551 US $199.99
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 SCORPIONS ANIMAL MAGNETISM SIGNED ALBUM COVER W/ VINYL PSA/DNA #P35830 US $349.99
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 STING & ANDY SUMMERS THE POLICE SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43515 US $249.99
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 TOM PETTY AND THE HEARTBREAKERS MOJO SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43542 US $299.99
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 JOHN MELLENCAMP UH-HUH SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43559 US $124.99
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 MICHAEL MCDONALD SWEET FREEDOM SIGNED ALBUM COVER W/ VINYL PSA/DNA #P35827 US $229.99
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 JOHN PAUL JONES LED ZEPPELIN SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43579 US $249.99
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 JOHNNY MATHIS THE FIRST TIME EVER SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43570 US $299.99
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 BILLY JOEL THE BRIDGE SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43506 US $199.99
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 BILLY JOEL THE NYLON CURTAIN SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43504 US $199.99
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 RON ASHETON SCOTT ASHETON IGGY POP STOOGES SIGNED ALBUM W/ VINYL PSA #P43517 US $399.99
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 ANTHONY BANKS & MICHAEL RUTHERFORD SIGNED ALBUM COVER W/ VINYL PSA/DNA #P35819 US $149.99
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 HARRISON FORD RAIDERS OF LOST ARK SIGNED ALBUM COVER W/ VINYL PSA/DNA #J76857 US $449.99
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 ELVIS COSTELLO TRUST SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43537 US $199.99
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 ELVIS COSTELLO SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43533 US $199.99
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 ELVIS COSTELLO GET HAPPY SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43532 US $199.99
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 BILL COSBY WONDERFULNESS SIGNED ALBUM COVER W/ VINYL PSA/DNA #P43522 US $179.99
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Vinyl Psa
Oxygen Plant
Application
Oxygen finds broad application in various technological processes and in almost all industry branches. The primary oxygen application is associated with its capability of sustaining burning process, and the powerful oxidant properties.
Due to that, oxygen has become widely used in the metal processing, welding, cutting and brazing processes. In the chemical and petrochemical industries, as well as in 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, such as metal welding, cutting and brazing is one of the most significant and common applications of this gas. Oxygen allows generating high-temperature flame in welding torches thus ensuring high quality and speed of work performance.
Metal industry
Oxygen is heavily used in the metal industry where it helps to increase burning temperature by the production of ferrous and non-ferrous metals and significantly improve the overall process efficiency. Another important oxygen application in the metal industry is connected with its use for carbon fixation 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.
Oil and gas industry
In the oil and gas industry, oxygen finds application as a means for viscosity improvement and enhancement of oil-and-gas flow properties. Oxygen is also 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.
Fish farming
The use of oxygen in 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.
Glass industry
In glass furnaces oxygen is effectively used for burning temperature increase and burning processes improvement.
Waste management
The use of oxygen in incinerators allows to significantly increase flame temperature and eventually ensure enhanced cost efficiency and incinerators production capacity.
Adsorption technology
Type of performance on semitrailer
Adsorption principle
Gas separation by adsorption systems is based on the fixation of various gas mixture 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
Temperature and pressure influence
The current methods of gaseous oxygen production from air with the use of adsorption technology are nearly brought to perfection. The operation of a modern oxygen adsorption plant is based on the dependence of gas intake by adsorbent on the temperature and partial pressure of a gas component.
The gas adsorption and adsorbent regeneration processes may therefore be regulated by varying of the pressure and temperature parameters.
Pressure swing adsorption
The oxygen plant flow process is arranged in such a way that highly absorbable gas mixture components are taken in by adsorbent, while low absorbable and non-absorbable components go through the plant. Today, there exist three methods of arranging the adsorption-based air separation process with the use of swing technologies: pressure (PSA), vacuum (VSA) and mixed (VPSA) ones. In the pressure swing adsorption flow processes, oxygen is recovered under above-atmospheric pressure and regeneration is achieved under atmospheric pressure. In vacuum swing adsorption flow processes, oxygen is recovered under atmospheric pressure, and regeneration is achieved under negative pressure. The mixed systems operation combines pressure variations from positive to negative.
Adsorption oxygen plants
The adsorption oxygen plants produce 5 to 5,000 nm3/hr of oxygen with the purity if 93-95%. These systems designated for indoor operation are set to effectively produce gaseous oxygen from atmospheric air.
An unquestionable advantage of adsorption-based oxygen plants is the low cost of oxygen produced in the cases where there are no rigid requirements to the product oxygen purity.
Structurally, the adsorption oxygen plant consists of several adsorbers, the compressor unit, pre-purifier unit, valve system and the plant control 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 required at the level of 90-95% with the capacity of up to 5,000 nm3 per hour, adsorption oxygen plants are the optimal choice. This oxygen purity may also be obtained through the use of systems based on the cryogenic technology; however, cryogenic plants are more cumbersome and complex in operation.
Membrane technology
Membrane oxygen equipment
Innovation technology available today
Some companies produce high-efficiency systems for oxygen production from atmospheric air with the help of membrane technology.
Membrane operation principle
The basis of gas media separation with the use of membrane systems is the difference in velocity with which various gas mixture components permeate membrane substance. The driving force behind the gas separation process is the difference in partial pressures on different membrane sides.
Membrane cartridge
A modern gas separation membrane used by GRASYS is no longer a flat plate, but is formed by hollow fibers. Membrane consists of a porous polymer fiber with the gas separation layer applied to its external surface. Structurally, a hollow fiber membrane is configured as a cylindrical cartridge representing a spool with specifically reeled polymer fiber.
Membrane cartridge
Compressor and vacuum technologies
Due to the membrane material high permeability for oxygen in contrast to nitrogen, the design of membrane oxygen complexes requires a special approach. Basically, there are two membrane-based oxygen production technologies: compressor and vacuum ones.
In the case of compressor technology, air is supplied into the fiber space under excess pressure, oxygen exits the membrane under slight excess pressure, and where necessary, is pressurized by booster compressor to the required pressure level. By the use of vacuum technology, a vacuum pump is used for the achievement of partial pressures difference.
Membrane oxygen plants
Designed for indoor operation, membrane oxygen plants allow efficient air enrichment with oxygen up to the concentration of 30-45%. The complexes are rated to 5 to 5,000 nm3/hr of oxygenated air.
In the membrane oxygen plant, gas separation is achieved in 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 control system.
The adoption of membrane systems for air enrichment purposes promises multiple oxygen savings where the oxygen concentration of 30-45% is sufficient to cover process needs. In addition to customer saving on the product oxygen cost, there is a collateral economic effect based on extremely low operating costs.
With the incorporation of the membrane technology, oxygen plants have outstanding technical characteristics. Membrane oxygen plants are highly reliable due to the absence of moving parts in the gas separation module.
The systems are very simple in operation control of all operating parameters is carried out automatically. Because of the plants high automation degree, no constant manned attendance is required during its operation.
Membrane oxygen plants are finding increasingly broad application in various industries all over the world. With moderate requirements to oxygen purity in product - up to 30-45%, membrane systems generally prove more economically sound than adsorption and cryogenic systems. Besides, membrane plants are much simpler in operation and more reliable.
Advantages of adsorption and membrane oxygen plants
Complete automation and simplicity of operation;
No manned attendance required during operation;
Enhanced failure safety and reliability;
Quick start and stop ;
Moderate dimensions and light weight ;
Low noise level;
Extended operational life;
Low operating costs;
No special workshop requirements;
Easy installation and integration into an existing air system.
Disadvantages
Relativity low oxygen purity - 93-95% for adsorption and 30-45% for membrane plants;
Limited capacity.
External links
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
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