Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Atabani, A.E.; Mahmoud, Eyas; Aslam, Muhammed; Naqvi, Salman Raza; Juchelková, Dagmar; Bhatia, Shashi Kant; Badruddin, Irfan Anjum; Hoang, Anh Tuan; Palacký, Petr

doi:10.1007/s10668-022-02361-z

Cited by 27 publications

(7 citation statements)

References 63 publications

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“…The grounds were divided into defatted spent coffee grounds and coffee ground oil that could be used to produce fuel pellets with excellent heating values. [153] Peach seeds were used in a zero waste biorefinery to extract oils/lipids and pyrolysis to generate gas, bio-oil, and biochar under different pyrolysis conditions. [154] Bioproducts were formed for use in the food and pharmaceutical industries through the integrated biorefinery of pineapple wastes.…”

Section: The Main Findings Of the Study Referencesmentioning

confidence: 99%

An Overview of Agro-Waste Management in Light of the Water-Energy-Waste Nexus

et al. 2022

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It is urgent that we increase global food production to support population growth. Food production requires significant resources, amongst them water and energy. Therefore, any losses of food or other agricultural products also means a waste of water and energy resources. A significant amount of these losses occurs during the postharvest stage, primarily during processing and storage. This is considered avoidable food waste. The water-energy-waste nexus (WEW), and its relationship to food production, needs to be investigated from a circular bioeconomy lens. Furthermore, alternative uses of the wastes should be investigated. This review focuses on agro-wastes and their management as sources for bioactive compounds, biofertilizers, biomaterials, nanomaterials, pharmaceuticals and medicinal agents, and growth media, e.g., for plant tissue culture. We also investigated the potential contribution of agro-wastes to bioenergy production (bioethanol, biogas, and biofuel). Proper management of agro-wastes may support the mitigation of climate change, produce innovative bio-ingredients and biodegradable materials, and enhance green growth and a circular bioeconomy. We argue that the management of agro-wastes cannot be discussed without referring to the role of water and energy within the food system. Thus, this review focuses on agricultural wastes and their handling, applications, environmental impacts, and potential benefits in the agricultural and medical industries in light of the WEW nexus.

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Section: The Main Findings Of the Study Referencesmentioning

confidence: 99%

An Overview of Agro-Waste Management in Light of the Water-Energy-Waste Nexus

et al. 2022

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“…Both large-scale dams and smaller-scale projects play essential roles in harnessing hydroelectric power, a significant source of energy globally [48]. Aside from aiding in electricity production and heat generation, biomass and bioenergy, including organic and agricultural waste, play a crucial role in reducing carbon emissions across various industries [49]- [51]. In addition, municipal solid waste, including waste tire, plastic waste, and industrial waste, could also be reused to produce energy and value-added chemicals [52]- [55].…”

Section: Introductionmentioning

confidence: 99%

Harnessing a Better Future: Exploring AI and ML Applications in Renewable Energy

Nguyen,

Paramasivam,

Dong

et al. 2024

JOIV : Int. J. Inform. Visualization

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Integrating machine learning (ML) and artificial intelligence (AI) with renewable energy sources, including biomass, biofuels, engines, and solar power, can revolutionize the energy industry. Biomass and biofuels have benefited significantly from implementing AI and ML algorithms that optimize feedstock, enhance resource management, and facilitate biofuel production. By applying insight derived from data analysis, stakeholders can improve the entire biofuel supply chain - including biomass conversion, fuel synthesis, agricultural growth, and harvesting - to mitigate environmental impacts and accelerate the transition to a low-carbon economy. Furthermore, implementing AI and ML in combustion systems and engines has yielded substantial improvements in fuel efficiency, emissions reduction, and overall performance. Enhancing engine design and control techniques with ML algorithms produces cleaner, more efficient engines with minimal environmental impact. This contributes to the sustainability of power generation and transportation. ML algorithms are employed in solar energy to analyze vast quantities of solar data to improve photovoltaic systems' design, operation, and maintenance. The ultimate goal is to increase energy output and system efficiency. Collaboration among academia, industry, and policymakers is imperative to expedite the transition to a sustainable energy future and harness the potential of AI and ML in renewable energy. By implementing these technologies, it is possible to establish a more sustainable energy ecosystem, which would benefit future generations.

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“…Household waste can be an alternative energy source on account of the high heat capacity substances contained in it such as paper, plastic, rubber, and cloth, etc. (Gutberlet and Uddin, 2017;Hoang et al, 2020;Nguyen and Le, 2021;Zahra et al, 2022), and organic wastes such as biomass and food waste (Atabani et al, 2022;Prasertpong et al, 2023;Son Le et al, 2022). However, waste could be converted into energy through refuse-derived fuel (RDF) (Stępień et al, 2019) because the high density of RDF makes it easier to store and transport to the point of use, and this increases the homogeneity of the fuel in the energy conversion process (Maj et al, 2022;Streier et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Simulation and experimental study of refuse-derived fuel gasification in an updraft gasifier

Nguyen-Thi

Bui

2023

Int. J. Renew. Energy Dev.

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Refuse-derived fuel (RDF) made from the mixture of wood and loose rice husk increases the porosity of the fuel in the furnace to facilitate the gasification process. Simulation results show that CO is concentrated in the incomplete combustion zone and CO2 forms mainly in the fully burned area; CH4 forms in the reduction region, while H2 forms in the region of high temperature of the furnace. When the mixture composition was f=0.3, the CO concentration in the syngas reached about 21%, the H2 concentration reached about 2% and the CH4 concentration was too low to be ignored. When the mixture composition increased to f = 0.5, the CO concentration reached about 26%, the H2 concentration remained almost unchanged and the CH4 content increased to 6%. The calorific value of the syngas reached a maximum when f = 0.5 and the temperature of the reduction zone is in the range of 900K to 1200K. Air humidity affects CO concentration but not much on CH4 and H2 concentration as well as the syngas calorific value. The difference between simulation and experimental results is not more than 10% for CH4 concentration and not more than 14% for CO2 concentration. The power of the spark ignition engine is reduced by 30% when running on syngas compared to when running on gasoline.

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Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Cited by 27 publications

References 63 publications

An Overview of Agro-Waste Management in Light of the Water-Energy-Waste Nexus

An Overview of Agro-Waste Management in Light of the Water-Energy-Waste Nexus

Harnessing a Better Future: Exploring AI and ML Applications in Renewable Energy

Simulation and experimental study of refuse-derived fuel gasification in an updraft gasifier

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