Decarbonization Avenue : Renewable Natural Gas

Innovation Insights

Innovations in the separation of H2S and nitrogen from biogas

Biogas produced through anaerobic digestion not only produces methane but also other gases in small amounts such as hydrogen sulfide, nitrogen and CO2. Hydrogen sulfide should be removed from the gas before upgrading to prevent corrosion. 

Depending on the specifications for RNG, excess nitrogen needs to be removed using suitable techniques. Different types of H2S removal techniques are followed that include biological removal, use of air injection, membrane separation, and adsorption.

Innovations to increase the efficiency and decrease costs of these systems could enhance the overall profitability of the biogas and RNG plant.

Relevant for

  • Biochemical engineer
  • Biomass energy professional

Innovation sector

  • Biotechnology
  • Chemistry & chemical engineering

Web Resources

Removal of Hydrogen Sulfide from Biogas Using a Red Rock

01-01-2020

Source: NM-AIST

Website : Link

Innovation Category

Stakeholders

Industry


Removal of hydrogen sulfide from a biogas mimic by using impregnated activated carbon adsorbent

01-02-2019

Source: Universiti Kebangsaan Malaysia

Website : Link

Innovation Category

Stakeholders

Industry


Domain

Type of innovation

Core sciences & engineering

Stakeholders

Corporate researcher

Industry

Chemicals