Export Markets:Global
Trademark:Suzhou
Xinrui
Packing:Wooden
Case Packing
Standard:ISO***1,
CE
Origin:Suzhou,
Jiangsu, China
Production Capacity:****0n
Cubic Meter
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 *5% nitrogen and *5%
hydrogen under the action of catalyst. In theory, one Kg of
ammonia can produce 2.*4 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.
Specifications and
Technical Indicators:
Model: XRAQ(FC)
Production rate: ****0Nm³/h
Gas source: Ammonia vaporized from liquid
Source gas pressure: 0.***0.2Mpa
Source gas dew point: ≤**0ºC
Product gas(H2) pressure: 0.***0.1Mpa
Product gas(H2) dew point: ≤**0ºC
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 **0ºC~**0ºC 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
**0 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
**0~**0ºC).
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
**0~**0ºC,
the ammonia will nearly completely decompose, with the
decomposing rate reaching *9.9%.
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 **0 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.*4 Nm3 mixed gas).
Package and Delivery:
Packaging details: standard export packaging
Delivery details:within ****0days after receipt of the deposit
