Engineering Commons^™

Pathway To Achieve Negative Co2 Emissions - Combining Biomass With Ccs, Antti Arasto, Janne Karki, Kristin Onarheim

CO2 Summit II: Technologies and Opportunities

The urgency to stabilize the global temperature rise at 1.5°C as highlighted in Paris COP21 and the IPCC Fifth Assessment Report calls for solutions that can remove CO2 from the atmosphere. The ability of carbon negative processes to offset historic emissions and emissions across different sectors is also highlighted in recent scenarios by IEA and WEC. Achieving negative CO₂ emissions by removing CO₂ from the atmosphere is possible by applying carbon capture in processes utilizing biomass (bio-CCS). Biomass has the capability of withdrawing and storing atmospheric CO₂. As a result, CO₂ released during biomass thermo-chemical …

Techno-Economic Evaluation Of Retrofitting Ccs In An Integrated Pulp And Board Mill - Case Studies, Kristin Onarheim, Stanley Santos, Ville Hankalin, Petteri Kangas, Antti Arasto

CO2 Summit II: Technologies and Opportunities

Urgently reducing global greenhouse gas emissions (GHG) could be achieved by carbon sinks or negative emissions, i.e. removing CO₂ from the atmosphere and offsetting historical CO₂ emissions. Negative emissions can be achieved when CO₂ is captured from processes based on biomass feedstock (bio-CCS). Biomass withdraws atmospheric CO₂ through natural processes such as the photosynthesis. Capturing and permanently storing this CO₂ away from the natural carbon cycle enables a withdrawal of CO₂ from the atmosphere. Sustainable growth and harvest of biomass resources is critical to achieve carbon negativity and to allow for sound biomass regrowth. …

Development Of Chemical Looping Combustion Technology For Bio-Ccs Application, Sebastian Teir, Toni Pikkarainen, Eemeli Tsupari, Ikka Hiltunen, Janne Karki, Antti Arasto

CO2 Summit II: Technologies and Opportunities

Carbon capture and storage (CCS) is acknowledged as an important technology in cost-efficiently achieving the required greenhouse gas emission reductions this century. Combining biomass combustion with CCS (Bio-CCS; BECCS) offers the possibility of “negative” CO₂ emissions. In the latest IPCC assessment, bio-CCS was found to have an important role to play in climate change mitigation. Many scenario models were not able to achieve the necessary reduction in greenhouse gas concentration in the atmosphere to 450 ppm CO₂eq by 2100 if key technologies, such as bioenergy, CCS, and their combination were limitedly available (IPCC, 2014).

Chemical looping combustion …