Working Principle
This kind of hydrogen generator takes liquid ammonia as the source. Having being vaporized, the ammonia then is heated and decomposes into the mixed gas with 25% nitrogen and 75% hydrogen under the action of catalyst. In theory, one Kg of ammonia can produce 2.64 Nm3 mixed gas.
Based on the principle that the molecular sieve adsorbs different ammonia and water at different temperature, high purity gas is produced from the decomposed mixed gas by heating and regeneration at normal temperature. The switching of valves and heating time of the whole equipment are all under automatic control. Special personnel is no need to be on spot for handling and operation.
Specifications and Technical Indicators:
Model: XRAQ(FC)
Production rate: 5-500Nm³/h
Gas source: Ammonia vaporized from liquid
Source gas pressure: 0.05-0.2Mpa
Source gas dew point: ≤-10ºC
Product gas(H2) pressure: 0.05-0.1Mpa
Product gas(H2) dew point: ≤-60ºC
Residual ammonia: ≤3ppm
Temperature: Ambient temperature
Technical Process:
The decompressed liquid ammonia enters the decomposing furnace in which there is activated nickel catalyst after gasified in the vaporizer, the nickel catalyst would decompose at a temperature of 750ºC~800ºC and generate high temperature; The high temperature gas would make a heat exchange with the gaseous ammonia in the heat exchanger so the gaseous ammonia would absorb heat and heat up and then enter the decomposing furnace to decompose; The decomposed gas after heat exchange would further cool down in the chiller (ammonia chilling) and then enter the dryer (5A molecular sieve) which will remove the water and other impurities. Its purity can achieve: With dew point of -60 ºC, less than 5PPM relict ammonia. Generally there are two dryers on of which absorbs and dries the decomposed hydrogen and nitrogen that entered and the other releases the water and relict ammonia in heating situation (generally 250~300ºC). Alternately used, the two dryers can be used repeatedly.
Features and Advantages
The gas made in this method is a good protective gas which can be used widely in semiconductor industry, metallurgical industry and other industries and science research which need protective gas.
1. Ammonia is easy to decompose: With not very high pressure, under catalysts, and a temperature controlled at 750~800ºC, the ammonia will nearly completely decompose, with the decomposing rate reaching 99.9%.
2. Easy to refine the gas: As the raw material, the liquid ammonia is of very high purity. The volatile impurities are only little inert gas and water dissolved in the liquid ammonia and there is nearly no oxygen. Meanwhile, under such conditions, the ammonia decomposition is irreversible. So the water can be removed by adsorbing with a dew point of -60 ºCwhile the gas doing through the 5A molecular sieve. By this way, the nonmetallic elements, for example, chlorine and oxygen which are unpopular in semiconductor industry can be removed.
3. In China, the liquid ammonia as raw material is accessible at a low price and the raw material consumption is also relatively smaller( In theory, each Kg of ammonia can create 2.64 Nm3 mixed gas).
Package and Delivery:
Packaging details: standard export packaging
Delivery details:within 60-90days after receipt of the deposit
Model |
Capacity
(Nm³/h) |
Feed Gas |
Product Gas:Hydrogen Gas |
|
Gas source |
Pressure
(Mpa) |
Dew point
(ºC) |
Dew point
(ºC) |
Residual ammonia (ppm) |
Pressure
(Mpa) |
Temperature |
|
XRAQ(FC) |
5-500 |
Ammonia vaporized from liquid ammonia
|
0.05-0.2 |
≤-10
|
≤-65 |
≤3 |
0.05-0.1 |
Ambient temperature |
Suzhou Xinrui Purification Equipment Co., Ltd is a share-holding high-tech enterprise, which is located in Xuguan Industrial Park in New & High-tech Zone of Suzhou. Specializing in researching&producing, developing, designing, producing, manufacturing and selling as well as services of all kinds of industrial gas equipment, it provides professional industrial gas resource and matching products.
The company, always sticking to the concept of "people-oriented, practical-minded and innovation, customer foremost and quality first", is keeping on exploring actively and developing new crafts and technologies and constantly bringing in advanced technologies and scientific achievements home and broad. Several unique technologies of the company, such as Molecular sieve filling technology and systemic fully automatic technology, are widely used in dominating field of Petrochemical, chemical fiber, heat treatment, metallurgy, glass, food, medicine, electronics, national defense and aerospace, so on and so forth. Through new and advanced technologies, stable and reliable quality, rapid and professional service, strict and effective management, the company can provide the customers with more valuable techniques and products. Xinrui products bring in service concept from the beginning of designing, while sale is only the beginning of customer service. Taking clients as center, Xinrui reinforce each service work and fully implement the "customers satisfying project" to provide each single customer with professional, rapid and satisfying service.
We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with the good quality at the reasonable price.
