Restoring Pre-Industrial CO₂ Levels While Achieving Sustainable Development Goals

Authors

Mark E. Capron, OceanForestersFollow
Jim R. Stewart, OceanForestersFollow
Antoine de Ramon N’Yeurt, University of the South PacificFollow
Michael D. Chambers, University of New Hampshire DurhamFollow
Jang K. Kim, Incheon National UniversityFollow
Charles Yarish, University of Connecticut Stamford CampusFollow
Anthony T. Jones, Intake Works, LLCFollow
Reginald B. Blaylock, University of Southern MississippiFollow
Scott C. James, Baylor UniversityFollow
Rae Fuhrman, Stingray SensingFollow
Martin T. Sherman, OceanForestersFollow
Don Piper, OceanForestersFollow
Graham Harris, OceanForestersFollow
Mohammed A. Hasan, OceanForestersFollow

Document Type

Article

Publication Date

9-1-2020

Department

Coastal Sciences, Gulf Coast Research Laboratory

School

Ocean Science and Engineering

Abstract

© 2020 by the authors. Unless humanity achieves United Nations Sustainable Development Goals (SDGs) by 2030 and restores the relatively stable climate of pre-industrial CO₂ levels (as early as 2140), species extinctions, starvation, drought/floods, and violence will exacerbate mass migrations. This paper presents conceptual designs and techno-economic analyses to calculate sustainable limits for growing high-protein seafood and macroalgae-for-biofuel. We review the availability of wet solid waste and outline the mass balance of carbon and plant nutrients passing through a hydrothermal liquefaction process. The paper reviews the availability of dry solid waste and dry biomass for bioenergy with CO₂ capture and storage (BECCS) while generating Allam Cycle electricity. Sufficient wet-waste biomass supports quickly building hydrothermal liquefaction facilities. Macroalgae-for-biofuel technology can be developed and straightforwardly implemented on SDG-achieving high protein seafood infrastructure. The analyses indicate a potential for (1) 0.5 billion tonnes/yr of seafood; (2) 20 million barrels/day of biofuel from solid waste; (3) more biocrude oil from macroalgae than current fossil oil; and (4) sequestration of 28 to 38 billion tonnes/yr of bio-CO₂. Carbon dioxide removal (CDR) costs are between 25–33% of those for BECCS with pre-2019 technology or the projected cost of air-capture CDR.

Publication Title

Energies

Volume

13

Issue

18

Recommended Citation

Capron, M., Stewart, J., de Ramon N’Yeurt, A., Chambers, M., Kim, J., Yarish, C., Jones, A., Blaylock, R., James, S., Fuhrman, R., Sherman, M., Piper, D., Harris, G., Hasan, M. (2020). Restoring Pre-Industrial CO₂ Levels While Achieving Sustainable Development Goals. Energies, 13(18).
Available at: https://aquila.usm.edu/fac_pubs/18240