Schlagwort: BECCS

Caspar T. J. Roebroek, Gregory Duveiller, Sonia I. Seneviratne, Edouard L. Davin, Alessandro Cescatti IN: Science, Vol 380 (6646), pp. 749-753, DOI: 10.1126/science.add5878

The authors integrated global maps of forest biomass and management with machine learning to show that by removing human intervention, under current climatic conditions and carbon dioxide (CO₂) concentration, existing global forests could increase their aboveground biomass by up to 44.1 (error range: 21.0 to 63.0) petagrams of carbon. This is an increase of 15 to 16% over current levels, equating to about 4 years of current anthropogenic CO₂ emissions.

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G. Cornelis van Kooten IN: Canadian Agricultural Economics, https://doi.org/10.1111/cjag.12333

A major policy concern is whether forests should be left unharvested to avoid carbon dioxide (CO2) emissions and store carbon, or harvested to take advantage of potential carbon storage in post-harvest wood product sinks and removal of CO2 from the atmosphere by new growth. The issue is addressed in this paper by examining carbon rotation ages that consider commercial timber as well as carbon values. A discrete-time optimal rotation age model is developed that employs data on carbon fluxes stored in both living and dead biomass as opposed to carbon as a function of timber growth.

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Wei Cheng, Lei Huang, Zhu Liu, Jinwei Dong, John C. Moore, Douglas G. MacMartin, Xiangzheng Deng IN: Resources, Conservation and Recycling 195, https://doi.org/10.1016/j.resconrec.2023.106997

The authors examine the seasonal and regional responses of net biome productivity (NBP) and its components to carbon emissions reduction under the SSP5–3.4 overshoot scenario simulated by eight CMIP6 Earth system models. Globally averaged NBP is lower under SSP5–3.4 than under SSP5–8.5, with 102±7 Pg C (51%) less accumulated during 2041 to 2100.

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Jussi Saari, Petteri Peltola, Katja Kuparinen, Juha Kaikko, Ekaterina Sermyagina, Esa Vakkilainen IN: Mitigation and Adaptation Strategies for Global Change 28, 21, https://doi.org/10.1007/s11027-023-10057-6

The main technical challenges hindering the deployment of BECCS technologies include energy penalties associated with the capture process. This work evaluates the performance of an advanced CO₂ capture technology, chemical looping with oxygen uncoupling (CLOU), replacing a conventional fluidized bed boiler in the power boiler role in a large, modern integrated pulp and paper mill. Results from a MATLAB/Simulink reactor model were incorporated in a plant and integration model developed in a commercial process simulation software to quantify the performance of the CLOU-integrated cogeneration plant.

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