Ocena wpływu kluczowych czynników na emisję GHG w cyklu życia biometanu

Berdechowski, K.; Badawczy, Instytut Nafty i Gazu – Państwowy Instytut

doi:10.18668/ng.2020.09.09

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The reduction of GHG emissions through biogas production depends on the type and structure of the feedstocks used. For example, when using food waste or manure, the reduction in GHG emissions is higher than when using maize [28,[53][54][55]. For this reason, the energy balance from biogas production is also better than for the production of first-generation biofuels, e.g., ethanol [56].…”

Section: Advantages and Disadvantages Of Biogas Productionmentioning

confidence: 99%

Is the Production of Agricultural Biogas Environmentally Friendly? Does the Structure of Consumption of First- and Second-Generation Raw Materials in Latvia and Poland Matter?

et al. 2022

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The importance of biogas in the energy mix in Poland and Latvia is very low. In Poland, 306 million m3 of biogas is produced annually, and in Latvia, 56 million m3. The share of energy from agricultural biogas in Latvia is 1.6%, and in Poland, only 0.12%. This study analyzed the impact of the structure on CO2 emissions from agricultural biogas production in Latvia and Poland. The emission was determined in accordance with the EU directive. The structure of substrates was dominated by those from the second generation, i.e., manure and food waste. In Latvia, it was 70%, and in Poland, 78%. The manure share was 45% and 24%, respectively. The anaerobic digestion of manure guarantees high GHG savings thanks to the avoided emissions from the traditional storage and management of raw manure as organic fertilizer. The level of emissions from the production of agricultural biogas was calculated for the variant with the use of closed digestate tanks, and it was about 10–11 g CO2/MJ, which is comparable to the emissions from solar photovoltaic sources. When using open tanks, the emission level was twice as high, but it was still many times less than from the Polish or Latvian energy mix. Such a low level of emissions resulted from the high share of manure. The level of emission reduction reached 90% compared to fossil fuels. The use of second-generation feedstock in biogas production provides environmental benefits. Therefore, if wastes are used in biogas generation, and the influence on the local environment and overall GHG emissions is positive, authorities should support such activity.

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Section: Advantages and Disadvantages Of Biogas Productionmentioning

confidence: 99%

Is the Production of Agricultural Biogas Environmentally Friendly? Does the Structure of Consumption of First- and Second-Generation Raw Materials in Latvia and Poland Matter?

et al. 2022

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“…W przypadku tej pierwszej fermentacji duże ograniczenie stanowi baza surowca, która opiera się głównie na odpadach z przemysłu rolno-spożywczego. W przypadku drugiej fermentacji, metanowej, ograniczeniem są możliwości zastosowania produktu (biogaz/biometan) jako paliwa transportowego, a istotne znaczenie ma również technologia produkcji biometanu, która ma istotny wpływ na emisję gazów cieplarnianych (Berdechowski, 2020;Rogowska i Pajda, 2020).…”

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Wytyczne do modelowania emisji GHG w cyklu życia komponentów paliw z pirolizy biomasy

Rogowska¹

2021

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The goals of the European Union set out in Directive 2018/2001 for 2030, including in particular the transport target of 3.5% share of the energy produced from feedstocks listed in Annex IX to the directive, indicate the need to search for new technologies for processing these feedstocks. The latter include waste and residual materials, including those from agriculture and forestry, cellulosic and lignocellulosic materials. These are feedstocks that are difficult or impossible to process using currently operating technologies. For this reason, it is necessary to implement new technologies allowing the use of feedstocks listed in Annex IX. These technologies should allow the production of high-quality engine fuel components and at the same time meet the sustainability criteria defined in Directive 2018/2001. The conducted literature review indicated that biomass pyrolysis combined with the hydrograding process may be such a technology. The article also provides a short literature review concerning the determination of GHG emission intensity for products from solid biomass pyrolysis. The review showed that this is a promising process, however, depending on the raw materials and energy carriers used, meeting the GHG emission reduction criterion may be difficult, especially if biomass from crops is used as the raw material. This article provides guidelines for the development of a model for calculating GHG emissions in the life cycle of a biocomponent from biomass pyrolysis. The entire life cycle of the biocomponent has been divided into sub-processes. Each of them has been briefly characterized. For each of them, the system boundaries, functional unit, input and output streams are defined. The sources of GHG emissions and the product to which these emissions can be allocated were also indicated. The stages identified in this biofuel production pathway have been assigned to the GHG emission components given in the formula in Directive 2018/2001.

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Ocena wpływu kluczowych czynników na emisję GHG w cyklu życia biometanu

Cited by 2 publications

References 8 publications

Is the Production of Agricultural Biogas Environmentally Friendly? Does the Structure of Consumption of First- and Second-Generation Raw Materials in Latvia and Poland Matter?

Is the Production of Agricultural Biogas Environmentally Friendly? Does the Structure of Consumption of First- and Second-Generation Raw Materials in Latvia and Poland Matter?

Wytyczne do modelowania emisji GHG w cyklu życia komponentów paliw z pirolizy biomasy

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