Is hydrothermal treatment coupled with carbon capture and storage an energy-producing negative emissions technology?

Cheng, Fangwei; Porter, Michael D.; Colosi, Lisa M.

doi:10.1016/j.enconman.2019.112252

Cited by 79 publications

(30 citation statements)

References 44 publications

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“…3.6.1 LCAs. We found 11 BECCS LCA studies which matched our search terms, [163][164][165][166][167][168][169][170][171][172][173] see the overview table of BECCS studies in the ESI. † Most LCA studies exhibited negative GHG emissions from BECCS systems, although there were system layouts, which resulted in positive GHG emissions, mainly due to upstream activities such as feedstock production, solvent preparation 168 and also side-effects (e.g.…”

Section: Bioenergy With Carbon Capture and Storage (Beccs)mentioning

confidence: 99%

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Life cycle assessment of carbon dioxide removal technologies: a critical review

Terlouw

Bauer

Rosa

et al. 2021

Energy Environ. Sci.

166

150

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Section: Bioenergy With Carbon Capture and Storage (Beccs)mentioning

confidence: 99%

“…Most studies used a functional unit based on the mass of feedstock used (e.g. 164,172,173 ) or per unit of power generated (e.g. 165,167,168,171 ).…”

Section: View Article Onlinementioning

confidence: 99%

Life cycle assessment of carbon dioxide removal technologies: a critical review

Terlouw

Bauer

Rosa

et al. 2021

Energy Environ. Sci.

166

150

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“…Recent innovations and cost reductions with HTL ( [28][29][30][31][32][33]116,117]) make it practical to scale up as a solid waste-collection system that pays for itself. HTL converts to bio-oil any blend of wet plants, paper, wax, and most plastics (except thermosets, about 14% of total plastics [118]).…”

Section: Htl Detailsmentioning

confidence: 99%

Restoring Pre-Industrial CO2 Levels While Achieving Sustainable Development Goals

Capron¹,

Stewart²,

N’Yeurt

et al. 2020

Energies

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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.

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“…With China's pledge to achieve net-zero by 2060, the climate change benefits, e.g., CO2 sequestration effects, arising from pyrolyzed sludge could be beneficial to facilitate the deep decarbonization, and those benefits would turn pyrolysis into an even more attractive technique for sludge treatment [15,22].…”

Section: Introductionmentioning

confidence: 99%

Full-scale municipal sludge pyrolysis in China: Design fundamentals, environmental and economic assessments, and future perspectives

Luo

Cheng

Yu³

et al. 2021

Science of The Total Environment

Self Cite

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The increasing amount of municipal sludge in China requires safe and effective management to protect human health and ensure environmental sustainability. Pyrolysis is a thermochemical process that that decompose organic matter at elevated temperature and under anaerobic conditions, and it has attracted an increasing attention in sludge treatment in the recent years. However, comprehensive environmental and economic assessment of sludge pyrolysis in China's context is rare, due to the small quantities of fullscale sludge pyrolysis plant. In this paper, we applied our design and operation parameters of full-scale sludge pyrolysis plants to generate the material and energy consumptions of the pyrolysis system under various of conditions, including sludge organic content and moisture content, system size, system energy distribution, and whether or not heat substitution is applied. Life cycle assessment and techno-economic assessment were then applied to investigate the environmental and economic performance of the system

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Is hydrothermal treatment coupled with carbon capture and storage an energy-producing negative emissions technology?

Cited by 79 publications

References 44 publications

Life cycle assessment of carbon dioxide removal technologies: a critical review

Life cycle assessment of carbon dioxide removal technologies: a critical review

Restoring Pre-Industrial CO2 Levels While Achieving Sustainable Development Goals

Full-scale municipal sludge pyrolysis in China: Design fundamentals, environmental and economic assessments, and future perspectives

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