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
