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Ammonia
Cracking Units
MGS
Ammonia Cracking Units or Ammonia Cracker Gas Generator produces
mixture of Hydrogen and Nitrogen by cracking Ammonia, which takes
place in presence of Nickel catalyst at 850°C temperature.
Ammonia
Cracking Units/Ammonia Crackers
MGS
Ammonia Cracking Units or Ammonia Crackers are fully automatic,
easily operational and are virtually maintenance free . In addition
they have a compact body and can be installed very close to PSA
Nitrogen generation equipment. The cost of Hydrogen generation by
this method comes to around Rs.4.00 per Cubic Meter only.
Ammonia
Crackers are very simple units. They are widely used in industries
for small generation of Hydrogen gas. Ammonia Cracking Units are
electrically heated units which consume around 1.4KW power per Cubic
Meter of Hydrogen. Raw material for these units is Ammonia gas which
is easily available in standard 60kgs capacity cylinders in open
market. When Ammonia gas is passed over Nickel catalyst in these
units, it cracks into N2 + H2 mixture containing 75% Hydrogen and 25%
Nitrogen. This mixture is used as Deoxo Purification Unit for Oxygen
removal.
For Getting Pure Hydrogen
If pure Hydrogen gas of 99.99% purity is required, a
PSA Molecular sieves unit after these Ammonia crackers is provided
,which removes Nitrogen. This PSA unit operates at 7kg/cm²g pressure
and produces pure Hydrogen gas at 5.5kg/cm² pressure. This type of
ammonia based hydrogen generator is very economical up to 50 Nm³/hr
Hydrogen capacity.
Molecular Sieves Purifier
A Molecular sieve purifier is provided after Ammonia
cracking unit for reducing residual ammonia content and to get very
dry gas. This reduces ammonia down to 1-ppm level and dries gas up to
(-) 80°C dew point.
Gas Composition
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Without Molecular Sieves Purifier
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With Molecular Sieves Purifier
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Hydrogen
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75%
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75%
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Nitrogen
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25%
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25%
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Oxygen
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Nil
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Nil
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Residual ammonia
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100-ppm(max)
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1-ppm (max)
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Dew Point
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(-) 30°C
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Up to (-)80°C
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Capacities
1 Nm³/hr to 600 Nm³/hr.
Features
- Fully automatic, skid mounted
units.
- Catalyst retort is made of heat
resistant alloy which can withstand max. 1150°C operating
temperature.
- Furnace has efficient ceramic
fiber insulation and a hinged door for easy maintenance and easy
inspection.
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