Determination of methane emissions from biogas plants, using different quantification methods

Hrad, Marlies; Huber-Humer, Marion; Reinelt, Torsten; Spangl, Bernhard; Flandorfer, Claudia; Innocenti, Fabrizio; Yngvesson, Johan; Fredenslund, Aage; Scheutz, Charlotte

doi:10.1016/j.agrformet.2022.109179

Cited by 8 publications

(7 citation statements)

References 40 publications

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“…Higher emission rates were measured during periods with full digestate storage tanks compared to empty tanks (Hrad et al, 2015). Short-term variations (variations over a few hours) in emission rates were also observed in studies by Hrad and co-workers, where spikes in emission rates coincided with the agitation of digestate (Hrad et al, 2022(Hrad et al, , 2015.…”

Section: Short-term Methane Emission Rate Variationsupporting

confidence: 61%

“…To date, only a few studies have documented total CH 4 emissions from biogas plants to an extent where national emission factors can be calculated (Scheutz and Fredenslund, 2019;Bakkaloglu et al, 2021). Recent developments in instrumentation and measurement methodologies have enabled such studies (Delre et al, 2017;Scheutz and Fredenslund, 2019;Hrad et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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The Danish national effort to minimise methane emissions from biogas plants

et al. 2023

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Section: Short-term Methane Emission Rate Variationsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

The Danish national effort to minimise methane emissions from biogas plants

et al. 2023

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“…Nadeel van de on-site meetmethode is dat er vaak een onderschatting plaatsvindt van de daadwerkelijke methaanlekkage (Clauß et al, 2019;Fredenslund et al, 2018;Hrad et al, 2022;Reinelt et al, 2017).…”

Section: On-site Meetmethodeunclassified

“…De remote sensing meetmethode (IDM/DIAL/TDM) geeft een betere totaalemissie dan de on-site meetmethode, echter geeft de meetmethode geen informatie over waar de lekkagepunten daadwerkelijk zitten op de vergistingsinstallatie en is het vaak een momentopname als dit uitgevoerd wordt met mobiele meetapparatuur (Tabel 1) (Clauß et al, 2019;Fredenslund et al, 2018;Hrad et al, 2022;Reinelt et al, 2017). Verder kan er geen onderscheid gemaakt worden tussen verschillende bronnen van methaan.…”

Section: Figuurunclassified

Methaanlekkage bij mestvergisters : kwalitatieve screening van 10 Jumpstart mono-mestvergisters

Maasdam

2023

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Samenvatting NL Op dit moment wordt aangenomen dat 4,4% van de totale gasproductie in een (mono)mestvergistingsinstallatie weglekt naar de omgeving. Dit percentage is gebaseerd op metingen bij verschillende soorten vergistingsinstallaties, van verschillende omvang en met een wijdverspreide range van ouderdom. Uit een screening voor het vaststellen van lekkagepunten bij 10 mono-mestvergistingsinstallatie binnen Jumpstart in opdracht van FrieslandCampina bleek dat het aantal lekkagepunten een stuk lager lag dan gevonden in vergelijkbare studies. De grootste lekkagepunten werden geconstateerd bij de navergisters en de processen bij de WKK/gasopwerkingsruimte waar het geproduceerde biogas wordt verwerkt. Mede door het lagere aantal gevonden lekkagepunten en de verplichting om in Nederland navergisters af te dekken is het aannemelijk dat vergisters, aangelegd binnen Jumpstart, een lager gemiddeld lekkagepercentage hebben dan de tot op heden aangehouden 4,4% (mits deze installaties regelmatig gecontroleerd worden op lekkages en deze lekkages verholpen worden). Voor het daadwerkelijk vaststellen van een nieuw gemiddeld lekkagepercentage wordt geadviseerd om hoofdzakelijk on-site meettechnieken te gebruiken en daarmee eventueel remote technieken te valideren.Summary UK At the moment, it is assumed that 4.4% of the total gas production in a (mono)-manure fermentation installations is lost to the environment. This percentage is based on measurements at different types of fermenters, with different sizes and a in a wide range of ages. A screening to determine leakage points at 10 mono-fermentation Jumpstart installations commissioned by FrieslandCampina's showed that the number of leakage points was considerably lower than found in comparable studies. The largest leakage points were detected at the digestate storage and the process at the CHP/green gas room where the produced biogas was processed. Due to the lower amounts of leakage points found and the obligation to cover digestate storages in the Netherlands it is plausible that digesters installed within Jumpstart have a lower methane leakage percentage than the 4.4% used to date (under the condition that these installations are regularly tested for leakages and these leakages are fixed). To establish a new average leakage percentage it is advised use on-site measuring techniques and use these to validate remote sensing techniques. Dit rapport is gratis te downloaden op https://doi.org/10.18174/634173 of op www.wur.nl/livestock-research (onder Wageningen Livestock Research publicaties). Dit werk valt onder een Creative Commons Naamsvermelding-Niet Commercieel 4.0 Internationaal-licentie.

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“…Moreover, TDLAS typically requires ground-based transceivers and retroreflecting optics close to the ground which makes the measurement of elevated sources problematic. Emission quantification with TDLAS often relies on the use of inverse disperse model simulations, these models include several intrinsic assumptions, and hence often have high associated uncertainties in comparison to more direct methods of measurement such as Differential absorption lidar (DIAL) [12]. Despite this, TDLAS this offers the capability for long term monitoring with fixed fence-line installations.…”

Section: Introductionmentioning

confidence: 99%

Remote Measurements of Industrial CO2 Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

Howes,

Innocenti,

Finlayson

et al. 2023

Remote Sensing

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Carbon dioxide (CO2) is a known greenhouse gas and one of the largest contributors to global warming in the Earth’s atmosphere. The remote detection and measurement of CO2 from industrial emissions are not routinely carried out and are typically calculated from the fuel combusted or measured directly within ducted vents. However, these methods are not applicable for the quantification of fugitive emissions of CO2. This work presents the results of remote measurement of CO2 emissions using the differential absorption lidar (DIAL) technique at a wavelength of ~2 µm. The results from the DIAL measurements compare well with simultaneous in-stack measurements, these datasets were plotted against each other and can be described by a linear regression of y (t/h) = 1.04 x − 0.02, suggesting any bias in the DIAL data is likely small. Moreover, using the definition outlined in EN 15267-3 a lower detection limit of 0.12 t/h was estimated for the 2 µm wavelength DIAL data, this is three orders of magnitude lower than the corresponding CO2 detection limit measured by NPL in the 1.5 µm wavelength region. Thus, this paper demonstrates the feasibility of high-resolution, ground-based DIAL measurements for quantifying industrial CO2 emissions.

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Determination of methane emissions from biogas plants, using different quantification methods

Cited by 8 publications

References 40 publications

The Danish national effort to minimise methane emissions from biogas plants

The Danish national effort to minimise methane emissions from biogas plants

Methaanlekkage bij mestvergisters : kwalitatieve screening van 10 Jumpstart mono-mestvergisters

Remote Measurements of Industrial CO2 Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

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