Using CO2 as an Oxidant in the Catalytic Pyrolysis of Peat Moss from the North Polar Region

• DOI: 10.1021/acs.est.0c01862
• Publication Date: 2020-04-28T14:03:19Z
• Authors: Taewoo Lee; Sungyup Jung; Jinkyu Hong; Chi-Hwa Wang; Daniel S. Alessi; Sang Soo Lee; Young-Kwon Park; Eilhann E. Kwon
• Keywords: 13. Climate action; Charcoal; Sphagnopsida; Carbon Dioxide; Cold Climate; Oxidants; 01 natural sciences; 7. Clean energy; Pyrolysis; 0105 earth and related environmental sciences

As global warming and climate change become perceived as significant, the release of greenhouse gases (GHGs) stored in earth's polar regions is considered a matter concern. Here, we focused on exploiting GHGs to address potential challenges north regions. In particular, used CO2 soft oxidant recover energy syngas (CO H2) produce biochars from pyrolysis peat moss. expedited homogeneous reaction with volatile matters moss pyrolysis, mechanistic role resulted conversion CO at ≥530 °C. Steel slag waste was then an ex situ catalyst increase kinetics, addressing issue being limited °C, result where substantial H2 formation achieved milder temperature. The porosity biochars, solid product, modified presence CO2, significant improvement adsorption capacity compared those by N2 pyrolysis. Therefore, has serve initial feedstock sustainable biomass-to-energy applications biochar production, mitigating atmospheric carbon concentrations.