Is hydrothermal treatment coupled with carbon capture and storage an energy-producing negative emissions technology?
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Cheng, Porter and Colosi evaluated the performance of hydrothermal treatment technologies with CCS as NET for a different type of feedstock and process conditions.
“Interestingly, in a recent publication, Cheng, Porter and Colosi evaluated the performance of hydrothermal treatment technologies (HTT) -namely hydrothermal carbonization, hydrothermal liquefaction and hydrothermal gasification- with CCS as NET for a different type of feedstock an process conditions [13].”
From Integration of hydrothermal liquefaction and carbon capture and storage for the production of advanced liquid biofuels with negative CO2 emissions (2020) · cites this paper as [13]
In Cheng et al.'s study, supercritical conditions were not evaluated and the yields are relatively low, as they are mainly estimated based on reported data in batch operation.
“however, supercritical conditions are not evaluated and the yields are relatively low, as they are mainly estimated based on reported data in batch operation.”
From Integration of hydrothermal liquefaction and carbon capture and storage for the production of advanced liquid biofuels with negative CO2 emissions (2020) · cites this paper as [13]
The economic evaluation was not part of Cheng et al.'s study.
“Furthermore, the economic evaluation was not part of the study, but an interesting comparison between conventional BECCS -direct combustion of biomass- and HTT+CCS is presented.”
From Integration of hydrothermal liquefaction and carbon capture and storage for the production of advanced liquid biofuels with negative CO2 emissions (2020) · cites this paper as [13]
Cheng, Porter and Colosi estimated the EROI in the order of 2 and identified a trade-off between energy yield and carbon sequestration.
“The authors estimated the energy recovery of investment, EROI (EROI=Energy of product/Energy utilized in production process) in the order of 2, and identified a trade-off between energy yield and carbon sequestration.”
From Integration of hydrothermal liquefaction and carbon capture and storage for the production of advanced liquid biofuels with negative CO2 emissions (2020) · cites this paper as [13]
The value of -17.2 kg CO2eq/GJfuel is higher than the -50 kg CO2eq/GJfuel reported by Cheng, Porter and Colosi for HTT+CCS of lignocellulosic biomass.
“The value of -17.2 kg CO2eq/GJfuel is higher than the reported by Cheng, Porter and Colosi [13], who recently estimated the global warming potential of HTT+CCS of lignocellulosic biomass in the order of -50 kg CO2eq/GJfuel.”
From Integration of hydrothermal liquefaction and carbon capture and storage for the production of advanced liquid biofuels with negative CO2 emissions (2020) · cites this paper as [13]
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- Authors
- Cheng, F., Porter, M. D., & Colosi, L. M.
- Affiliations
- University of Virginia (US)
- Corresponding author
- Colosi, Lisa M.
- Venue
- Energy Conversion and Management
- Publisher
- Elsevier BV
- Published
- 2020-01
- Volume
- 203
- Pages
- 112252
- ISSN
- 0196-8904 (ISSN-L)
- OpenAlex
- W2990367159
- Cited by
- 131
- References
- 48
- Citations by year
- 2026: 11 · 2025: 30 · 2024: 20 · 2023: 23 · 2022: 20 · 2021: 20 · 2020: 7
- FWCI
- 4.15
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Energy Conversion and Management (publishedVersion)
- Funders
- G. Unger Vetlesen Foundation
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Energy › Energy Engineering and Power Technology › Hybrid Renewable Energy Systems
- Keywords
- hydrothermal treatment, carbon capture and storage, negative emissions technologies, energy return on investment, global warming potential, biocrude, hydrochar, lignocellulosic biomass, microalgae, random forest, life cycle assessment
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