Sökning: onr:"swepub:oai:DiVA.org:kth-290824" >
Small-scale biochar...
Small-scale biochar production on Swedish farms : A model for estimating potential, variability, and environmental performance
-
- Azzi, Elias Sebastian (författare)
- KTH,Hållbar utveckling, miljövetenskap och teknik
-
- Karltun, Erik (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment
-
- Sundberg, Cecilia (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,KTH,Resurser, energi och infrastruktur,Institutionen för energi och teknik,Department of Energy and Technology,Royal Institute of Technology (KTH)
-
(creator_code:org_t)
-
- Elsevier Ltd, 2021
- 2021
- Engelska.
-
Ingår i: Journal of Cleaner Production. - : Elsevier Ltd. - 0959-6526 .- 1879-1786. ; 280
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://doi.org/10.1...
-
https://pub.epsilon.... (primary) (Raw object) (free)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
visa färre...
Abstract
Ämnesord
Stäng
- Several small-scale pyrolysis plants have been installed on Swedish farms and uptake is increasing in the Nordic countries. Pyrolysis plants convert biomass to biochar for agricultural applications and syngas for heating applications. These projects are driven by ambitions of achieving carbon dioxide removal, reducing environmental impacts, and improving farm finances and resilience. Before policy support for on-farm pyrolysis projects is implemented, a comprehensive environmental evaluation of these systems is needed. Here, a model was developed to jointly: (i) simulate operation of on-farm energy systems equipped with pyrolysis units; (ii) estimate biochar production potential and its variability under different energy demand situations and designs; and (iii) calculate life cycle environmental impacts. The model was applied to a case study farm in Sweden. The farm's heating system achieved net carbon dioxide removal through biochar carbon sequestration, but increased its impact in several other environmental categories, mainly due to increased biomass throughput. Proper dimensioning of heat-constrained systems is key to ensure optimal biochar production, as biochar production potential of the case farm was reduced under expected climate change in Sweden. To improve the environmental footprint of future biochar systems, it is crucial that expected co-benefits from biochar use in agriculture are realised. The model developed here is available for application to other cases.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
Nyckelord
- Biochar
- Energy system modelling
- Farm
- Life cycle assessment
- Potential
- Pyrolysis
- Agricultural robots
- Agriculture
- Carbon dioxide
- Climate change
- Environmental management
- Life cycle
- Carbon dioxide removal
- Carbon sequestration
- Constrained systems
- Environmental evaluation
- Environmental footprints
- Environmental performance
- Heating applications
- Life-cycle environmental impact
- Environmental impact
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas