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ROC can supply hydrogen:
► In a full range of
purities.
► In any quantity required.
► As either compressed gas,
or liquefied gas.
We have specialist argon grades for use
in:
► Electronics.
► Industrial applications.
► Food.
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Processes that use Hydrogen
Hydrogen is renewable, abundant,
efficient, and unlike other alternative
fuels, produces zero emissions because
it combusts to produce only water. It
has enormous potential as a:
Fuel gas – ROC sponsors
development projects and is actively
involved in the practical application of
hydrogen as an alternative fuel. We are
developing supply packages for fuel cell
applications and have designed storage
systems for hydrogen fuel cell powered
cars. To find out more visit
http://www.fuelcellmarkets.com.
Hydrogen is the feedstock and raw
material for:
Hydrogenation
– a mixture of hydrogen and carbon
monoxide is used for the large-scale
production of methanol, ammonia and oxo-products
like higher alcohols and aldehydes.
Hydrogen has the highest thermal
conductivity of all elements. This
characteristic makes it an important gas
for:
Cooling
– to optimise heat transfer and cooling
of power generators and water systems in
nuclear reactors.
Hydrogen is also highly diffusive
through many materials including some
metals, and this forms the basis of some
hydrogen purification
processes.
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Industries that use hydrogen
We supply hydrogen for these processes
to a wide range of industries including:
Food and Beverages – to
hydrogenate edible liquid fats and oils
into margarine and other semi-solid
products.
Chemicals – to hydrogenate
non-edible oils for soap, creams,
plastic and other chemical processes and
for the production of bulk,
intermediates and speciality chemicals.
Pharmaceutical – to produce
pharma intermediates.
Electronics – to enhance heat
transfer, used as ultra high purity (UHP)
for controlled atmospheres in
semiconductor manufacturing to increase
productivity and protect against
impurities.
Energy – to enhance heat transfer
for cooling high speed turbine power
generators and nuclear reactors and as a
fuel for the growing fuel cell energy
generation market.
Aerospace – as a fuel gas for
spacecraft at ignition and to power
spacecraft internal systems.
Iron and Steel and
Non-ferrous metals – for
quenching and as a protective atmosphere
for heat treatment at very high
temperature such as in stainless steel
manufacturing, also to support plasma
welding and cutting.
Oil and Gas – to remove organic
sulphur from crude oil, fuel oil and
gasoline to enhance its performance.
Glass – used with nitrogen to
prevent oxidation of molten tin in the
float glass lines and improve glass
quality.
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Safety
Information
Hydrogen is not toxic. It is much
lighter than air and therefore
dissipates rapidly when released or
leaked.
Hydrogen has a wide range of flammable
concentrations in air and a lower
ignition energy than natural gas or
gasoline. It can ignite very easily.
Therefore, adequate ventilation and leak
detection are important elements in the
design of safe hydrogen systems.
Hydrogen burns with an almost invisible
flame so flame detectors are required.
Some metals can become brittle when
exposed to hydrogen, so design of safe
hydrogen systems should be performed by
specialist in the field.
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Technical Information
|
Characteristics |
Values |
|
Specific gravity at 70oF/21oC |
0.069 |
|
Critical temperature (oF/oC) |
-399.96/-239.97 |
|
Critical pressure (psia) |
190.8 |
|
Specific volume (cf/lb) |
192 |
|
Flammable range |
4-74% by volume in air |
|
Other properties |
Colourless, odourless, tasteless,
non-toxic, highly flammable |
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HAND BOOK |
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