Instrumentation and gas analysis for hydrogen

Hydrogen plays an important role in the production of cleaner energy. Various reliable measuring and analysis instruments(hydrogen gas analyzers, pressure transmitters for hydrogen,H2 flowmeters, temperature transmitters) help to improve the production process. They also reduce production costs and increase the service life of the installations.

Hydrogen production method

Conventional technology: Steam reforming

Specifications :

• Raw materials: Water, Methane
• Energy : Heat
• Cheapest method, account for 90% of world's H2 production, emits CO2

Hydrocarbon and water vapor are heated in the presence of catalyst. H₂ or mixture of CO and H₂ are obtained. Light hydrocarbons such as methane, LPG, naphtha are used as raw materials. These materials needs to be desulfurized before use.

Conventional technology: Electrolysis

Specifications :

• Raw material: Water
• Energy: Electricity
• Used in the area where electricity is inexpensive (PV, wind power, etc.).

Electrolysis is not commonly used because hydrogen production from fossil fuel is much cheaper.

Conventional technology: Byproduct hydrogen,Steelworks and Soda industry

Specifications :

• Raw materials: Coal, Seawater
• Energy: Heat, Electricity
• Supplies H₂ for fuel cell, vehicles enough up to 2020-2030

Hydrogen obtained as byproduct in manufacturing processes of steel, caustic soda, etc.

Future technologies: Coal gasification

Specifications :

• Raw materials: Coal, Water
• Energy : 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

Future technologies: Thermochemical conversion, biomass gasification, photolysis

Specifications :

• Raw material: Water
• Energy: Heat, electricity, solar (renewable energy)
• Use of natural energy Low density

Thermochemical: dissolves water by using heat or water vapor generated from power generation process.
Photolysis: dissolve water via catalyst and sunlight.