Monday, January 30, 2017

Angstrom Advanced Hydrogen Generating Plant by Pressure Swing Adsorption with Purifying System

Introduction
Pressure Swing Adsorption(PSA) is used to separate hydrogen gas from other gases by feeding the gas under certain pressure. This separation process occurs in adsorption tower. The main advantages behind this technology is its low cost, low capacity, minimal maintenance requirements and a user-friendly interface. 
The H2 Purifying System removes oxygen from Hydrogen via a catalyst to get high purity H2 after adsorption of drying through the dust filter.
The system can remove oxygen levels down to 1ppm. Through one step of purification, the purity can reach to 99.999~99.9999% and dew point can be lower than -70°C; Through a second purification step, O2 can be lowered down to less than 0.1ppm and dew point can be lowered to -90°C.
Specifications
H2 capacity
10-5000 Nm3/h
Dew Point
≤-60C
H2 purity %
>98-99.999%
Work pressure
0.2-4.0MPa

PSA Process Overview
Pressure-Swing Adsorption or PSA is a technical process widely used these days in gas production. It's a typically non-cryogenic way of purifying gas. PSA process differs from cryogenic techniques of gas separation as it can function under near-ambient temperatures. Under pressure, the PSA process separates some 'species' from a mixture, according to the molecular characteristics of those 'species'. This is because different gases has the propensity to be attracted to different solid surfaces more or less strongly.

More gas is adsorbed at higher pressure while the gas is desorbed as the pressure is reduced. Suppose air under pressure is passed through a vessel containing an adsorbent bed and this bed has the property to attract nitrogen more strongly than oxygen. What will happen is that a part or all of the nitrogen will remain in the bed, while the gas coming out of the vessel will be enriched in oxygen. As the bed reaches its optimum capacity to adsorb nitrogen, it can again be regenerated by reducing the pressure. Releasing the adsorbed nitrogen in the process. Thus readying itself for another cycle of oxygen enriched air. This cycle goes on.

Popular adsorptive materials like carbon, zeolites, silica etc. are used as the adsorbent beds. They selectively adsorbs the undesired gases at high pressure on their surface. Continuous production of the target gas is achieved by using more than one adsorbent chamber. However it is not a very easy process and difficult to model accurately. But once properly modeled, adsorption process can result in complex diffusion relationships.
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Wednesday, January 25, 2017

Angstrom Advanced Hydrogen Generating Plant by Natural Gas Steam Reforming

Introduction
The natural gas, prior to pressurization, desulfurization and mixing with aqueous vapor, is passed through a special reformer which is packed with catalyst for cracking and reforming effluent-a mixture of H2 CO2 and CO. After part heat is recovered, hydrogen will be obtained by converting  the reforming effluent to reduce the amount of CO content and the shift gas is purified through PSA to get the pure H2
Specifications
H2 capacity
50-20000 Nm3/h
H2 purity %
>99-99.999%
Work pressure
1.3-2.0MPa
Technical Features
-Safe and reliable operation
-High automation
-Low operational cost means your investment is recovered in a short period of time
-The desorbed gas from PSA can be burned; which can both reduce the fuel consumption and decrease the ventilation of the waste gas.

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Monday, January 23, 2017

Angstrom Advanced Hydrogen Generating Plant by Methanol

Introduction
Hydrogen generation by methanol decomposition was developed in the last two decades. 
This technology features low cost, simple user friendly operation and very easy maintenance.
Specifications
H2 capacity
5-3000 Nm3/h
H2 purity %
99-99.9995%
Work pressure
0.8-2.0MPa
Hydrogen Plant by Methanol Features
Methanol is converted to CO and H2 with the action of the catalyst
CO and H2O are converted to CO2 and H2 with the action of the catalyst
CO2 and trace CO are separated from the decomposed gases by PSA technology, and high purity of H2 is generated

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Tuesday, January 17, 2017

Angstrom Advanced Hydrogen Generating Plant by Ammonia Decomposition

Introduction
Hydrogen Generator by Ammonia Decomposition with Purifying System is very low cost; it has long service life, simple operation, compact structure, small coverage, and is very simple to install. Liquid ammonia is used as source for hydrogen generator. The liquid ammonia is vaporized and is heated by decomposition with catalyst into mixed gas containing 75% hydrogen and 25% nitrogen. Based on the principle that the molecular sieve adsorbs different ammonia and water at different temperatures; high purity gas is produced by heat regenerating through working at normal temperature.
Specifications
H2 capacity                  5-500 Nm3/h
Impurity Oxygen         ≤2ppm
Residual Ammonia      ≤3ppm
Dew Point                    ≤-65C
Work pressure             0.05-0.2 MPa

Hydrogen Plant by Ammonia Features
- Angstrom Advanced uses high-quality, heat-resistant, corrosion-resistant, stainless alloy steel as the gall of decomposition furnace to ensure the long-term stable operation of our Hydrogen Generators.
- Great efficiency, all of the metal components ensured with Double-fin heat exchanger material to fully enhance the heat transfer area.
- High temperature nickel catalyst, low content of residual ammonia and good effect of decomposition.
 
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Tuesday, January 10, 2017

Angstrom Advanced HGN-300 and HGN-500 Nitrogen Generator

Introduction
HGN-300 & HGN-500 nitrogen gas generators utilize theories of physical adsorption and electrochemical seperation and use rare metal as catalytic agent. The instrument can directly extract highly pure (as high as 99.999%) nitrogen from the air. There is no need of deoxidation. The generators are compact and advanced in technology. They are very suitable for gas chromatographs and micro coulomb meters.
Features
  • The electrolysis pool is made of stainless steel and it can store liquid, electrolysis of nitrogen and release oxygen at the same time
  • Large electrolysis area, low temperature of the pool and high nitrogen production,
  • The generator has a specially designed unit that prevents liquid from backflowing
  • Protection against over pressure and over flow
  • Very stable performance and long lifetime
  • The flow rate is displayed using digital LED display
  • Compact size, light weight, and ease of operation.
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Wednesday, January 4, 2017

Angstrom Advanced HGH-300 and HGH-500 Hydrogen Generator


Introduction
HGH-300 and HGH-500 high purity hydrogen generators are based on the technology of astronautic fuel cells, in which hydrogen is produced by the electrolysis of water, and the produced oxygen is released into the atmosphere. The generator consists of electrolyzing/separating pool, power supply, pressure control, desiccation& purification, flow display etc. The core part -- electrolyzing & separating pool, uses a tube shaped positive pole and a plate shaped negative pole. Both poles are made of stainless steel. The electrolyzing & separating pools store electrolytes produce hydrogen as well as release hydrogen at the same time. The HGH series hydrogen generators have the advantages of large electrolyzing area, low temperature of the pool, better performance, high production and high purity of hydrogen. The instrument has been specially designed to prevent liquid from back-flowing.

Features
·         It is very easy to operate -- all you need is to turn on the switch.
·         The pressure of released hydrogen is steady. The flow rate is digitally displayed on the LED display.
·         The only material that the instruments consume is distilled water.
·         The liquid storage, hydrogen electrolyzing and desorbing are integrated together in the instrument
·         The generator features large electrolyzing area, low pool temperature, long service life combined with high production and high purity of hydrogen.
·         The instrument has specially designed components that prevent liquid from back-flowing. As a result, there is no need to change the discolored silica gel frequently.
·         The adoption of the advanced power switches improves the electrolytic efficiency.
·         The generator is a great substitute of high-pressure steel bottles used in the laboratory application.
Specifications


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Tuesday, January 3, 2017

Angstrom Advanced GTL-300500 Combined Hydrogen, Nitrogen and Air Generator

Introduction
Model GTL-300 (500) combines nitrogen, hydrogen and air generators in one product. Developed with the latest technology and designed for the requirements of the market, GTL-300 (500) offers the best quality and working conditions for the users.
Features
·         High purity and fast gas generation;
·         Compact and portable;
·         Safety, reliability of operation and low noise are insured with help of multi-stage protective devices;
Specifications

 
 
 
For More Information:
GOOGLE+:
https://plus.google.com/u/0/112027144483956231979
BLOG:
http://angstrom-advanced.blogspot.com/
FACEBOOK:
https://www.facebook.com/angstromadvanced8/
WORDPRESS:
https://angstromadvancedinc.wordpress.com/
TWITTER:
https://twitter.com/AngstromAdvance
LINKEDIN:
https://www.linkedin.com/company/angstrom-advanced?trk=nav_account_sub_nav_company_admin
SLIDESHARE:
http://www.slideshare.net/AngstromAdvanced
PINTEREST:
https://www.pinterest.com/pin/309481805615112886/
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