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Protective Gas Plants

Best engineering performance made in Germany

HN/HNX Gas Generation - Protective gas | Mahler AGS

The sub stoichiometric combustion of hydrocarbons (NG, LPG) with subsequent conversion of CO to CO2 followed by removal of CO2 by means of Mono Ethanol Amine (MEA) is a well-established process for the generation of protective gas. 

Individual plant concepts to cover higher capacities and different hydrogen contents, as well as back-up systems to guarantee a continuous gas supply can be offered.

For a detailed process description and process flowsheet please click here.

Depending on customers’ demands the HN/HNX gas generation plants can deliver a protective gas with a hydrogen content between 1 vol.- % to 12 vol.-%.

01. Cost effective on-site plants

02. No operating personnel required

03. Fully automatic operation

04. Product flexibility in terms of quantity and H2-content

CO-Konverter für HNX-GaserzeugungCO-Konverter für HNX-Gaserzeugung
CO Converter for HNX Gas Generation
HN / HNX Gas Generation

Plant Features of the HN/HNX Gas Generation Plants:

  • Low cost on-site production
  • Fully automatic and unattended operation
  • Product flexibility regarding flow and H2-content
  • Completely pre-manufactured skids
  • High availability and reliability
  • Design for long lifetime

Typical applications for HN/HNX gas generation plants:

  • Metallurgical industry (e.g. galvanizing, annealing)
  • Float glass industry

Plan data:

Natural gas (NG), liquefied petroleum gas (LPG)
Product gas capacity:
350 to 1.200 Nm³/h
1 – 12 vol.-%
Delivery pressure*:
about 1,1 bar(abs)

* at exit oxygen VPSA unit; higher pressures on demand.


Are you looking for high availability, long lifetime and reliable performance?

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