Macrotek Inc.

- Regenerative H2S Gas Scrubbing System


The SULFCAT process is a ground-breaking technology targeted at novel, cost effective, and efficient removal of contaminants from various gas streams. Hydrogen sulphide (H2S), commonly found in oil and gas reservoirs, is an extremely toxic gas produced naturally in anaerobic digestion processes and many industrial processes. Macrotek’s novel regenerative technique – the SULFCAT Process – efficiently scrubs H2S from industrial gas streams by using a non-hazardous regenerative reagent which eliminates the sulphate-containing wastewater stream produced by traditional technologies and drastically reduces scrubbing reagent consumption.

Macrotek has developed an innovative catalytic reagent that converts H2S to solid sulphur. After the reaction, the SULFCAT reagent is regenerated by forced oxidation and is recycled back into the process. This process eliminates the sulphate wastewater stream and drastically reduces reagent consumption.

A non-hazardous mixture of SULFCAT aqueous solution blends of stabilized metal oxide particles facilitate a set of reactions with the absorbed H2S and convert it to innocuous elemental sulphur, a marketable product. The simple addition of air regenerates the reaction solution.

The SULFCAT process is delivered using Macrotek's novel process gas scrubbing systems.

  • H2S is absorbed in Macrotek's advance absorber tower.
  • A Macrotek Oxidation Vessel regenerates the SULFCAT reagent and releases the elemental sulphur.
  • The elemental sulphur is filtered or centrifuged out of the solution.

There are several key benefits to the MVI process compare to traditional technologies:

  • Reagent is not consumed by the reaction and is continually regenerated
  • Eliminates the sulphate wastewater stream and drastically reduces reagent consumption
  • Reduces blowdown volumes in scrubber systems and minimizes water consumption
  • Operating costs reduced as much as 70% lower than traditional scrubber technologies while maintaining exceptional H2S removal efficiency
  • Production of solid elemental sulphur – a valuable product that can be reused
  • Provides removal efficiency that will meet and exceed all regulatory requirement

Some of the wide range of sectors that would benefit from the MVI process include:

  • Industrial production processes
  • Waste-to energy systems
  • Biogas production systems
  • Hydrocarbon production
  • Landfill gas treatment
  • Pulp industry
  • Sewer gas treatment
  • Municipal wastewater treatment processes
  • Geothermal steam production
  • Oil and gas production and oil refining

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