Hydrogen Production & Purification

Hydrogen Purification

To achieve high hydrogen purity and recovery, EAJV utilizes its high quality adsorbent such as silica gel, activated alumina, activated carbon and molecular sieves.

Hydrogen Purification

EAJV hydrogen separators/ purificators operate on the Pressure Swing Adsorption process, also known as PSA Technology. This technology is based on the selective adsorption phenomena of gas molecules under pressure on the surface of highly porous and efficient adsorbent. When hydrogen and carbon dioxide from the water shift reaction are used for hydrogen generation, the adsorption towers are filled with molecular sieves.
The molecules of carbon dioxide, moisture and other gases are adsorbed on the surface of adsorbents. Hydrogen which is not adsorbed by adsorbents passes through the adsorption tower and is collected in a vessel.

For continuous generation of hydrogen multiple adsorption towers are provided and are operated with auto change-over valves controlled by a PLC. After saturation of one tower with carbon dioxide the process automatically changes over to the next tower and thus the hydrogen production is continuous.

Steam Methane Reforming

Steam reforming of hydrocarbons is conventionally used for feedstock production for methanol synthesis, hydrogen production, ammonia synthesis and Fisher-Tropsch synthesis. Syngas or Hydrogen can be produced using the Steam Methane Reforming process.

In the case of hydrogen production, the methane reforming step is followed by the Water Gas Shift (WGS) reaction. During that process the carbon monoxide part of the syngas produced is reacted with steam over a catalyst to convert CO into carbon dioxide (CO₂) and hydrogen. The WGS reaction is first produced at a temperature of 350˚C which is called High Temperature Shift (HTS). The reaction is further completed at a lower temperature 190˚C to 210˚C Low Temperature Shift (LTS).

EAJV produces small to medium size SMR systems for the GTL industry in the range of 50,000 Nm³/h to 200,000 Nm³/h of syngas. We also produce small SMR system for the production of hydrogen.

Long-Term Technical Assistance

Hydrogen production catalyst and purification media as well as technical assistance are available from EAJV on a long-term contract basis.
With this contractual arrangement, the latest advances in H₂production technology and adsorbent media developments are transmitted to the client on a regular basis to ensure that all plants supplied by EAJV Technology benefit from the highest efficiency as well as the highest plant availability.

Steam Methane Reforming

Hydrogen production through Steam Methane Reforming (SMR). The methane feedstock is mixed with water in specified ratio and pressurized. This mixture is passed through evaporator, metering pump and super heater. The hot gas mixture is then fed into a catalytic reactor. The reaction of methane reforming and the water shift reaction, takes place in the catalytic reactor of fixed beds simultaneously to form a mixture of H₂ and CO₂. Hydrogen is then extracted using the Pressure Swing Adsorption process. EAJV builds hydrogen production plants using methane as feedstock. Plant capacity is available from a few hundred to several thousand cubic meter per hour.

Hydrogen Purification

To achieve high hydrogen purity and recovery, EAJV utilizes its high quality adsorbent such as silica gel, activated alumina, activated carbon and molecular sieves.

Hydrogen Purification

Steam Methane Reforming

Long-Term Technical Assistance

EAJV's Hydrogen Production Plants

EAJV Hydrogen purification plant capacities are from a few hundred up to hundred thousand cubic meter per hour.