Non-Cryogenic Nitrogen Generators And Methods Of Use

This nitrogen generator relates to gas generators and methods for their use. In some embodiments, the invention relates to devices and methods of generating a gas enriched in a specific component. In other embodiments, the devices are configured to pressurize and regulate the temperature of atmospheric air prior to passing said air through a selectively permeable gas membrane. In further embodiments, a device is also configured to preheat said selectively permeable gas membrane.

Inert gases such as nitrogen are utilized in many industrial processes. The relative low cost and significant abundance of nitrogen as compared to other inert gases makes it particularly attractive for such applications. PSA nitrogen generator is particularly attractive for use in industrial well drilling, for example, in oil and natural gas drilling applications. Thus, there is a need for nitrogen generators that allow for maximum nitrogen generating capacity while also allowing for ease of transport and relocation to both on- and off-shore drilling operations.
In some embodiments, the VPSA oxygen generator relates to a device comprising: i) a first compressor configured to compress feed air into a first compartment providing compressed air at a first elevated temperature at a first elevated pressure; and ii) a membrane bank comprising a selectively permeable PSA oxygen generator configured to receive said compressed air at a second elevated pressure below said first elevated pressure and configured to filter said compressed air providing a component enriched gas; iii) a second compressor configured to compress said component enriched gas into a second compartment at a second elevated pressure. In further embodiments, said component is nitrogen gas.

In other embodiments, the nitrogen generator relates to a method of generating a component enriched gas comprising: a) providing: i) atmospheric air; ii) a membrane bank comprising a casing covering selectively permeable gas membranes; iii) a first compartment wherein said first compartment is temperature regulated; and iv) compressor configured to compress gas into a second compartment; b) compressing said atmospheric air into said first compartment so as to create compressed air; c) cooling said first compartment; d) reducing pressure such that said compressed air moves through said selectively permeable gas membranes providing a component enriched gas. In further embodiments, said component is nitrogen gas. In further embodiments, said first compartment is temperature regulated by a hydraulic coolant system. In further embodiments, said compressed air is above 10 and below 1000 psig.

nitrogen generator PSA nitrogen generator PSA oxygen generator

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Nitrogen generator for wine or champagne preservation

A nitrogen generator for generating nitrogen rich gas from ambient air for a wine or champagne preservation and dispensing apparatus having a housing for holding at least one wine or champagne container, said nitrogen generator comprising:

The present PSA nitrogen generator relates in general to an apparatus for preserving and dispensing wine or champagne and in particular to a nitrogen generator for the apparatus. One or more wine or champagne bottles may be stored in the apparatus for preservation and future use by a wine or champagne consumer.
Millions of people throughout the world drink wine and champagne. Numerous types of wine and champagne are produced in many countries throughout the world. Most wine and champagne are distributed to consumers in bottles. Wine and champagne bottles are usually sealed with a cork to prevent exposure to the air and to preserve the wine or champagne. Consumers of wine or champagne may drink an entire bottle, a significant portion of a bottle or only one glass of wine or champagne. Some consumers may drink a glass of wine a day while others may only drink one glass a week.
Wine begins to oxidize（VPSA oxygen generator）when it comes in contact with air and more specifically, with the oxygen present in the air. For a short period of time, oxygen and the process of oxidation benefit wine. With many types of wine, it is recommended to let the wine “breathe” before drinking. Breathing or exposing wine to ambient air for a short time allows a small amount of oxidation to induce the release of certain volatile compounds in the wine, which wine drinkers find to have a desirous effect on the wine’s taste. Continued nitrogen generator, however, eventually degrades every type of wine. To slow the degradation of the wine, a majority of wine is stored and preserved in bottles that are sealed with a cork or similar sealing device. However, uncorking or opening a wine bottle generally initiates the beginning of the end of a wine’s useful or tasteful life. Red wines often degrade faster than white wines. Sweeter white wines tend to last longer, or degrade slower, than other white wines.

nitrogen generator VPSA oxygen generator PSA nitrogen generator

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High efficiency nitrogen generator

A process and apparatus is disclosed for highly efficient nitrogen generator product in a single column arrangement. Oxygen-enriched liquid from a distillation column is partially vaporized to form a liquid and a vapor phase. The liquid is vaporized in a second reboiler/condenser and thereafter the vapor expanded to provide process refrigeration. The vapor portion having higher nitrogen content is compressed and returned to the distillation column for higher overall nitrogen recovery.

Numerous processes for the PSA nitrogen generator from air are known in the art. Where the primary product is nitrogen, single column processes for the separation of air at cryogenic conditions utilizing an oxygen-enriched stream for expansion and refrigeration for the process is well known.

One such basic process and apparatus for the generation of nitrogen using waste oxygen-enriched stream expansion is described in U.S. In this basic process, compressed dried feed air with impurities removed is cooled to near the dew point and fed to the lower part of a single distillation column wherein it is separated into a nitrogen-enriched stream at the top of the column and an oxygen-enriched stream at the bottom of the column.

Another modification of the basic single column Nitrogen generator for coal mine is disclosed in U.S. In this process, oxygen-enriched liquid is withdrawn from the bottom of the single distillation column and expanded into the reboiler/condenser to provide for condensation of nitrogen-enriched vapors which in turn are returned as reflux to the top of the distillation column.

The present nitrogen generator provides for a process carried out under cryogenic conditions in an PSA oxygen generator providing for an efficient recovery of nitrogen from air. In the process of the present invention, a gaseous feed stream is rendered free of impurities, compressed, dried, and cooled, and thereafter, delivered to a feed point in a distillation column. In the distillation column, a nitrogen-enriched vapor is formed at the top, and an oxygen-enriched liquid at the bottom of the column.

nitrogen generator PSA nitrogen generator PSA oxygen generator

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Membrane nitrogen generator and the VPSA oxygen generator can be used to obtain an effective way of nitrogen. In the past, nitrogen transport can only be in a liquid form. It is needed to be pressurized and cooled nitrogen to very low temperatures and all proceedings in the energy heap. PSA Nitrogen Generator and Membrane Gas Generators eliminate this procedure and save us all that energy. In fact Nitrogen Generators cut out that energy consuming process entirely. Nitrogen generator only need source of compressed air which is renewable resource to make Nitrogen Gas. Nitrogen Generators only need compressed air to be fed, then it PSA Oxygen Genertor and other molecules are trapped, Nitrogen then is being pushed into a storage tank. These PSA and Membrane Nitrogen Gas Generators are most cost effective way to produce Nitrogen Gas. These Generators can be marked as greener as they only borrow Nitrogen from air. It is so simple procedure because the remaining substance like oxygen goes back into air without damaging anything around us. These cryogenic air separation also eliminate the handling of large tankers because no nitrogen is needed in liquid form.

PSA Nitrogen Generator Nitrogen generator PSA Oxygen Genertor

Modular PSA nitrogen generator

A modular PSA nitrogen generator including a housing including a bracket and defining an interior space, a flow path having an inlet adapted to receive compressed air and an outlet in fluid communication with a storage tank, an inlet manifold, an outlet manifold, and a modular membrane canister supportable on the mounting bracket within the interior space and positioned along the flow path between the inlet manifold and the outlet manifold to receive compressed air from the inlet manifold, extract nitrogen from the compressed air, and deliver the nitrogen to the outlet manifold.

FIELD OF THE INVENTION

The present invention relates to nitrogen generator utilizing modular membrane canisters to separate nitrogen from compressed air and to a method of operating the same. Specifically, the present invention relates to nitrogen generators that are expandable by adding additional modular membrane canisters.

SUMMARY

In one embodiment, the Nitrogen generator for coal mine provides a modular psa nitrogen generator including: a housing including a bracket and defining an interior space, a flow path having an inlet adapted to receive compressed air and an outlet in fluid communication with a storage tank, an inlet manifold, and an outlet manifold. The inlet manifold and the outlet manifold extend through the housing and can be positioned along the flow path between the inlet and the outlet. The modular psa nitrogen generator further includes a modular membrane canister supportable on the mounting bracket within the interior space and positioned along the flow path between the inlet manifold and the outlet manifold to receive compressed air from the inlet manifold, extract nitrogen from the compressed air, and deliver the nitrogen to the outlet manifold.

In another embodiment the PSA oxygen generator provides a method of operating a modular psa nitrogen generator. The method includes the acts of: providing the VPSA oxygen generator

with a housing including a bracket and defining an interior space, an inlet manifold, an outlet manifold, an outlet, and a first modular membrane canister connected between the inlet manifold and the outlet manifold, The method further includes supplying compressed air to the first modular membrane canister through the inlet manifold, separating nitrogen from the compressed air as the compressed air flows through the first modular membrane canister, directing the separated nitrogen from the first modular membrane canister to the outlet manifold.

VPSA oxygen generator PSA oxygen generator PSA nitrogen generator

Advantages of PSA nitrogen generators

High nitrogen purity

Adsorption PSA nitrogen generator plants allow production of high-purity nitrogen from air, which membrane systems are unable to provide – up to 99.9995% nitrogen. This nitrogen generator for coal mine purity may also be ensured by cryogen systems, but they are considerably more complex and justified only by large consumption volumes. Peak Scientific Inc. has a system which produces 99.9995% purity in a compact generator. The Nitrogen generator use CMS (Carbon Molecular Sieve) technology to produce a continuous supply of ultra high purity nitrogen and are available with internal compressors or without.

Low operating costs

By substitution of out-of-date air separation plants nitrogen production savings largely exceed 50%.

The net cost of nitrogen produced by VPSA oxygen generator is 20 to 30 times less than the cost of bottled or liquefied nitrogen.

Membrane Technology

Membrane PSA nitrogen generator

Gas separation concept

The operation of membrane systems is based on the principle of differential velocity with which various gas mixture components permeate membrane substance. The driving force in the gas separation process is the difference in partial pressures on different membrane sides.

Membrane cartridge

Flux distribution inside the fiber

Structurally, a hollow-fiber membrane represents a cylindrical cartridge functioning as a spool with specifically reeled polymer fibers. Gas flow is supplied under pressure into a bundle of membrane fibers. Due to the difference in partial pressures on the external and internal membrane surface gas flow separation is accomplished.

Advantages

Economic benefits

By substitution of out-of-date cryogenic or adsorption systems nitrogen production savings generally exceed 50%.

The net cost of nitrogen produced by nitrogen complexes is 20 to 30 times less than the cost of cylinder or liquefied nitrogen.

Module design

The advantage of modularity makes nitrogen generators especially beneficial for Company customers. Where necessary, the output capacity of a plant may be increased at the minimum cost. This option appears all the more useful where a project envisages a subsequent increase in enterprise capacity.

Dependability

Gas separation units have no moving component parts, thus ensuring the exceptional reliability of Company plants. Membranes are highly resistant to vibration and shocks, chemically inert to greases, moisture-insensitive, and capable of operating over a wide temperature range of –40°С to +60°С. With appropriate maintenance, membrane unit useful life ranges between 130,000 and 180,000 hours (15 to 20 years of continuous operation).

PSA oxygen generator PSA nitrogen generator Nitrogen generator

The useful of PSA Nitrogen generator

If you are using tanks shrouded nitrogen, dry, product transfer, cleaning, washing, lazy, then you should look at your plant compressed air source for the gas supply, produce their own on-site nitrogen. This is a simple and reliable way that can save you money and give you more control over your nitrogen gas use.

Overall, there are two ways to make nitrogen. There is membrane filtration and PSA nitrogen generator (Pressure Swing Adsorption) technology. Flow rates and purity will determine which technology is best suited for the application.

The first is nitrogen membrane separation technology. Membrane nitrogen generator is typically used in applications where the purity requirement is below 99.5% (0.5% O2 or higher). Membrane Technology works by VPSA oxygen generator from the dry compressed air stream via hundreds of thousands of hollow, polymeric fibers each the diameter of a human hair to produce gaseous nitrogen.

This is the most suitable site for a variety of nitrogen membrane filtration applications include: fast food packaging, laser and nitrogen tanks blankets, filling tires, rapid prototyping cutting, RIM (Reaction Injection Molding), Injection Molding (Gas Assist), fruit storage, power stations, dry box storage of assembled electronic components, mine fires, fire sprinkler systems, and beer dispensing.

The second type of nitrogen is PSA (Pressure Swing Adsorption) Technology. PSA nitrogen generators are typically used in applications where the purity requirement is higher than 99.5% (0.5% O2 or below). PSA technology utilizes two towers that are filled with carbon molecular sieve (CMS). Compressed air enters the bottom of the “online” tower and flows up through the CMS. Oxygen and other trace gases are preferentially adsorbed by the CMS, allowing nitrogen to pass through. After a pre-set time the on-line tower automatically switches to the regenerative mode, venting contaminants from the CMS.

Proposed PSA nitrogen generators would be MIDIGAS and MAXIGAS integrated systems as the inconvenience of gas cylinders and liquid dewars is eliminated. Nitrogen can be generated freely at your location, in a continuous and reliable way that only requires a supply of compressed air.

Nitrogen generator for coal mine PSA nitrogen generator nitrogen generator

Description of the nitrogen generator

Background of the nitrogen generator

1. Field of the nitrogen generator

The present invention is directed to nitrogen generators, and in particular, portable cryogenic nitrogen generators.

2. Description of the Related Art

Inert gases are widely used in many industrial processes. For example, nitrogen gas is commonly used in conjunction with operation of a drilling rig for oil, gas, or geothermal wells, as well as for post drilling operations. In particular, nitrogen is injected into the down-hole region during a drilling operation, to remove drill cuttings

Summary of the nitrogen generator

One drawback of non-cryogenic devices is that efficiency drops off rapidly as purity increases. For example, it has been found that portable membrane separation units can provide 95% pure nitrogen gas at a flow rate sufficient for drilling operations.

One aspect of the present invention includes the realization that PSA oxygen generator can be made sufficiently portable to provide practicable sources of higher purity nitrogen gas for drilling operations.

Another aspect of the present invention includes the realization that standard sized containers can be used to provide a protective housing during transportation and operation of the cryogenic nitrogen generator for coal mine. By using standard size containers to form a housing for a cryogenic nitrogen generator, such as a cryogenic distillation and associated heat exchanger unit, the device can be shipped to a drilling site and efficiently and quickly assembled into an operative state. For example, a cryogenic nitrogen generator can include an air preparation unit and a cryogenic distillation and associated heat exchanger unit. The air preparation unit typically will include an absorption device, such as a Pressure Swing Absorption ( PSA nitrogen generator) or a Temperature Swing Absorption (TSA) unit. Optionally, the air preparation unit can also include one or a plurality of air compressor units. The air preparation unit can be configured to fit within a standard ISO container resting horizontally. However, a cryogenic distillation unit is quite tall. For example, typical cryogenic distillation units, also known as “cold boxes,” can be as tall as 30 feet or more to produce Nitrogen gas of better than 99% purity. Thus, the distillation unit can be separately housed in a standard ISO container.

VPSA oxygen generator cryogenic air separation PSA nitrogen generator

nitrogen generator

It is reported that two sets of BGPN295-1000 and a set of BGPN59-80 nitrogen generators’s reliable operation shall provide an endless process of high-quality nitrogen to the Titanium Sponge Technology whole process in Zunyi titanium co., ltd., so as to achieve the whole assembly line continuous operation. High-quality nitrogen gas pipeline replacement and high-purity inert nitrogen protection to ensure that high-quality titanium sponge and titanium powder output.

Zunbao Titanium Co., Ltd. is the Joint-stock company which composed up by 9 companies, such as Zunyi Titanium Corporation Limited, Baosteel Group and Zhongbei Titanium Co.,Ltd.  With annual output of million tons of titanium sponge production scale of the whole process, Zunbao Titanium Co., Ltd. is one of the leading enterprises with standardized and orderly development in Titanium Industry Chain in China. This is the first time for RICH nitrogen plant to be settled in Zunbao Titanium industrial, what consolidated the RICH nitrogen plant used in China’s metals industry leading position.

Over the years, RICH focus on the normal temperature PSA nitrogen & oxygen equipment’s research and development, the manufacture as well as the sales work, never steps in the cryogenic field business. Along with the PSA technology’s popularization, the domestic normal temperature space-division market’s competition is increasingly fierce, RICH actually lacks the cryogenic air seperation plant’s technological strength and the manufacture condition, so we looking to get into this business expansion by domestic manufacturers of high quality provision of equipment, RICH invested and constructed the building, finally succeeded in operating Zhengzhou RICH Gas Company. Moreover in the foreign market. Relies on many years foreign trade work and the relations accumulates, more and more old customers attempt to purchase the domestic cryogenic air seperation plant through RICH. In recent years, along with Zhengzhou RICH’s cryogenic project’s success operation, as well as long-term inspection on those small and middle sized cryogenic air seperation plant manufacturers, RICH accumulated a lot of operational experience of such projects, at this time, for the customer demand, RICH took over the business directly.

In order to ensure the successful implementation of the project, and timely prevent and solve the various problems that may arise, a special work team, made up by several relevant qualified technical experts, was set up by RICH technology center., RICH also have assigned special personnel to fully cooperate with equipment manufacturer to ensure the smooth and effective co-ordination with customers.

This project’s success signing, means that RICH in the cross domain market and the new service’s success development, thus RICH’s service strength obtains further strengthens and breaks through, what has the profound significance to RICH in the international gas market’s long-term development.