Sustainable value methodology to compare the performance of conversion technologies for the production of electricity and heat, energy vectors and biofuels from waste biomass

Moura, Patrícia; Henriques, J.C.C.; Alexandre, Jorge; Oliveira, Ana Cristina Mendes de; Abreu, Mariana; Gı́rio, Francisco M.; Catarino, Justina

doi:10.1016/j.clwas.2022.100029

Cited by 6 publications

(4 citation statements)

References 26 publications

(30 reference statements)

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“…The increase in gas yield was mainly attributed to the char gasification. The endothermic char gasification rate was enhanced greatly, and char gasification is more likely to occur in CO 2 atmosphere than in argon (7) As shown in Fig. 3, the content of H 2 and CO increased, while that of CO 2 and CH 4 decreased with the gasification temperature increased.…”

Section: Effect Of Temperature On Biomass Gasificationmentioning

confidence: 90%

“…With gasification temperature increasing, all the endothermic reactions from (4) to (10) were strengthened and caused the increment of H 2 and CO. Higher temperature favored the products in reactions of (4), ( 5), ( 6) and (7) as well as the reactants in reactions (8), and so caused the decreases in the contents of the CO 2 and CH 4 . Therefore, as far as rice husk decomposition is concerned, to carry out the reaction at elevated temperatures is favorable since the content of H 2 and CO in the gas product is increased with the gasification temperature.…”

Section: Effect Of Temperature On Biomass Gasificationmentioning

confidence: 99%

“…Fossil fuels have collectively been the single largest source of CO 2 emissions, responsible for nearly 65% of the global greenhouse gas emissions [3][4][5]. It is estimated that by 2035, the total consumption of primary energy sources is equivalent to consumption of 2.8 × 10 8 tons of standard coal [6][7][8]. The massive consumption of traditional fossil energy, on the one hand, will bring serious pollution to the natural environment, on the other hand, it also faces the threat of resource exhaustion [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on supercritical carbon dioxide gasification of biomass

Zhou

Wang

et al. 2023

Carb Neutrality

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With the excessive use of fossil energy and concern for environmental protection, biomass gasification as an effective means of biomass energy utilization has received widespread attention worldwide. Supercritical carbon dioxide (SCCO2) (T ≥ 31.26 °C, P ≥ 72.9 atm) has the advantages of near liquid density and high solubility, and the supercritical carbon dioxide gasification of biomass will be a promising technology. However, there has been no research on the technology at present. In this work, experimental study on supercritical carbon dioxide gasification of biomass were carried out in a batch reactor. The influences of temperature, residence time, the amount of carbon dioxide and catalyst on gas yield and fraction were investigated. Experimental results showed that the gas yield and carbon gasification efficiency (CE) of biomass gasification increased with increasing temperature, reaction time or the amount of carbon dioxide. As the gasification temperature increased from 700 °C to 900 °C, the gas yield increased from 23.53 to 50.24 mol/kg biomass and CE increased from 47.26% to 94.53% in CO2 atmosphere at 30 min. The gasification efficiency of biomass was greatly improved with catalyst, and the effect of impregnated catalyst was better than that of mechanical mixing. The gas yield increased from 23.72 to 50.24 mol/kg biomass with the increasing of the equivalent ratio from 0 to 1 at 900 °C and 30 min. Finally, a detailed supercritical carbon dioxide gasification mechanism of biomass was proposed.

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Section: Effect Of Temperature On Biomass Gasificationmentioning

confidence: 90%

Section: Effect Of Temperature On Biomass Gasificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental study on supercritical carbon dioxide gasification of biomass

Zhou

Wang

et al. 2023

Carb Neutrality

View full text Add to dashboard Cite

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“…The increasing energy consumption has led the scientific community to investigate new alternatives for clean energy production through environmentally friendly processes. The valorization of agricultural waste as low-cost feedstock for biogas generation is an alternative to energy-related problems while avoiding pollution and generating income (Moura et al, 2022). In particular, the olive oil sector generates large quantities of olive pomace as the main waste, which, due to its volume and composition, represents a valuable resource with significant potential to be valorized.…”

Section: Introductionmentioning

confidence: 99%

Analysis of energy return on investment of dry anaerobic digestion for low water alperujo with oxidative, thermal and alkaline pretreatments

Gil,

Groff,

Kuchen

et al. 2024

Water & Environment J

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Anaerobic digestion processes for biogas generation using alperujo have been the subject of intensive studies suggesting that phenolic compounds act as microbial inhibitors in anaerobic digestion. Pretreatments are needed to reduce the effects of phenolic compounds and improve biogas production, especially for dry anaerobic digestion. However, industrial‐scale implementation of these pretreatments is challenging, and it is unclear whether the improvement in biogas production justifies the energy expended on pretreatment. This study examines the energy analysis of dry anaerobic digestion and three alternative pretreatments: alkaline, oxidative and thermal. Results indicate that thermal pretreatment at 80°C with added water reduces phenolic compounds in alperujo by 35.4%. Meanwhile, pretreated with hydrogen peroxide in alkaline medium had the highest methane productivity (205 mL CH4/gVS). Even so, thermal pretreatment was only one with an energy return on investment greater than 1, signifying the necessity for energy analysis to ensure the viability of pretreatment processes.

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The role of agricultural biomass in supply chain decarbonization

Lyu,

Arisian,

et al. 2024

Ann Oper Res

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To achieve supply chain decarbonization, environmentally conscious manufacturers are transforming their energy infrastructure. While certain manufacturers are adopting a pure bioenergy strategy in their production processes, others are opting for a hybrid energy approach that combines traditional energy with bioenergy. This choice is often influenced by limitations in land capacity and the developmental stage of biomass conversion technologies. This paper introduces a game-theoretic model that explores the optimal approach to achieving supply chain decarbonization by strategically selecting energy portfolios. Our findings reveal that in scenarios where the market size is small, manufacturers tend to adopt a hybrid energy strategy, particularly when the average yield of biomass is low. However, as the biomass yield increases, manufacturers lean towards a hybrid (or pure) bioenergy strategy in smaller (or larger) markets. In larger markets, the manufacturer’s energy strategies become more complex and are influenced by various factors. Our results emphasize that farmers should base their planting decisions on considerations such as available land, initial investment, and agricultural biomass yield. This paper urges manufacturers to effectively navigate the complexities of the carbon tax policy and make informed decisions that promote a sustainable energy strategy. By utilizing technological advancements, governments and manufacturers can collect and analyze data on factors such as market size, biomass yield, and carbon tax policy, ultimately working towards a more efficient, productive, and environmentally sustainable future.

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Sustainable value methodology to compare the performance of conversion technologies for the production of electricity and heat, energy vectors and biofuels from waste biomass

Cited by 6 publications

References 26 publications

Experimental study on supercritical carbon dioxide gasification of biomass

Experimental study on supercritical carbon dioxide gasification of biomass

Analysis of energy return on investment of dry anaerobic digestion for low water alperujo with oxidative, thermal and alkaline pretreatments

The role of agricultural biomass in supply chain decarbonization

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