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Instrumentation and gas analysis for hydrogen

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Measuring instruments and gas analyzers
for the hydrogen industry


 

Measuring instruments and gas analyzers for the hydrogen industryFuji Electric measuring instruments
support professionals in the
hydrogen industry during each phase
of their production process in order to:

  • Reduce production cost
  • Increase yields
  • Extend the service life of installations
  • Guarantee the quality of the finished product


 


 

Hydrogen

New generation energy system based on electricity and hydrogen.
Hydrogen and electricity are convertible to each other. It is expected to establish an environmentally friendly energy cycle by using them.
Hydrogen energy characteristics.

  •  Exists everywhere on earth
  •  Generates water only when burnt
  •  Offers great power while unlikely to spontaneously ignite
  •  Serves as an energy storage medium
  •  Quick diffusion when wet

Hydrogen production

 
 Production methodRaw materialsEnergyFeaturesDescriptionInstruments
Conventional  technologySteam reformingWater MethaneHeatCheapest method, account for 90% of world's H2 production, emits CO2Hydrocarbon and water vapor are heated in the presence of catalyst. H2 or mixture of CO and H2 is
obtained. Light hydrocarbons such as methane, LPG, naphtha are used as raw materials. These materials needs to be desulfurized before use.

Pressure
sensor

Flow meter

Temperature transmitter

Conventional technologyElectrolysisWaterElectricityUsed in the area where electricity is inexpensive (PV, wind power, etc.)Electrolysis is no longer used in Japan because hydrogen production from fossil fuel is much more cheaper. 
Conventional technologyByproduct hydrogen
Steelworks
Soda industry
Coal
Sea water
Heat
Electricity
Supplies H2 for fuel cell, vehicles enough up to 2020-2030Hydrogen obtained as byproduct in manufacturing processes of steel, caustic soda, etc

Pressure
sensor

Flowmeter

Temperature transmitter

Future technologies

Coal gasificationCoal
Water
Heat
(fossil fuel)
High-density H2
Low-quality coal waste
Carbon injected into a furnace reacts with O2 in the air to be CO2 and/or CO, or reacts with water vapor
to be CO and H2. The obtained CO goes through
reaction with water vapor, it is dissolved into CO2 and H2.
CO + H2O -> CO2 + H2

Temperature transmitter

Oxygen analyser

Pressure
sensor

Future technologiesThermochemical, biomass gasification, photolysis, etc.WaterHeat, electricity, solar (renewable energy)Use of natural energy Low-densityThermochemical: dissolves water by using heat or water vapor generated from power generation process.
Photolysis: dissolve water via catalyst and sunlight.

Temperature transmitter

Pressure
sensor

Flow meter

Hydrogen pressure measurement

Coating for prevention of hydrogen diffusion in the measurement cell (hydrogen sulphide) : Gold and CeramicHydrogen pressure measurement with gold and ceramic coating

For certain configurations, the process fluids generate hydrogen atoms that may be diffused through the metal diaphragm.
The contamination of the oil associated with this diffusion degrades the transmitter’s measurement accuracy and life time.
Thanks to our unique gold and ceramic double-coating diaphragm, the hydrogen’s permeation is stopped.
In this configuration, the transmitters may be used in sulphur reduction installations, hydrogen production units, oil refineries and putrefaction mud treatment works.

 

Instrumentation and gas analysis for hydrogen documentation
Applications
Applications