Multiscale scheme for the optimal use of residues for the production of biogas across Castile and Leon

Taifouris, Manuel; Martı́n, Mariano

doi:10.1016/j.jclepro.2018.03.018

Cited by 32 publications

(27 citation statements)

References 34 publications

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“…Similar results of processing plant locations have been found in the literature. The availability of raw materials, either algae, lignocellulosic, or municipal waste residues, is considered to determine the location of the processing plants ( Čuček et al., 2014 ; Taifouris and Martín, 2018 ). There is a real scarcity of studies related to supply chain optimization for essential oils in academic literature.…”

Section: Results and Analysismentioning

confidence: 99%

“…This model can account for optimal locations, different biomass types and processing technologies, seasonability, availability of resources, and losses. Taifouris and Martín (2018) , proposed a MILP model for four different agricultural residues to produce biogas and digestate. The model can find the optimum type of residue, the number and size of digesters, and the facility location across 59 sites under a two-layer structure (agricultural and processing).…”

Section: Introductionmentioning

confidence: 99%

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Supply chain and environmental assessment of the essential oil production using Calendula (Calendula Officinalis) as raw material

González-Aguirre

Solarte-Toro

Álzate

2020

Heliyon

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Biomass has been considered a potential source of value-added products and energy vectors. Most biomass studies have researched the best pathways or processes to upgrade this renewable raw material through stand-alone processes or biorefineries. The biomass supply chain is a crucial aspect in the economic analysis of biomass upgrading since most of the raw materials need to be transported. A supply chain analysis gives an idea about the availability, real costs, and storage conditions of the raw material to guarantee an accurate feasibility analysis and a standardized production process. Calendula (Calendula Officinalis) is an aromatic plant used to produce valuable extracts in the cosmetic and pharmaceutical industries. Nevertheless, high amounts of exhausted biomass (more than 95% w/w) are produced and wasted. Theseresidues represent an environmental issue to be solved through the implementation of valorizing options. This paper analyses the supply chain and environmental impact of essential oil production using Calendula (Calendula Officinalis) as a raw material in the Colombian context. The case study comprises a single-objective optimization of the calendula supply chain to produce essential oil and the life cycle assessment (LCA) of the process through a cradle-to-gate approach in the Colombian context. The results showed the best locations to upgrade Calendula in Colombia (i.e., Manizales and Bucaramanga), supplying 1.1 % of the total product demand. The optimal product flow to customers was 0.32 tons/year, and the required feedstock from suppliers was 162 tons/year. The agricultural stage of essential oil production represented the highest environmental impact of the supply chain. In particular, plastic sheets, organic fertilizers, and chemical fungicides were the main contributors to this impact.

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Section: Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supply chain and environmental assessment of the essential oil production using Calendula (Calendula Officinalis) as raw material

González-Aguirre

Solarte-Toro

Álzate

2020

Heliyon

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“…The composition of the precipitated solids is shown in Table 1. The kinetics is modelled based on the following considerations 27 .…”

Section: Process 1: Production Of Natural Extractmentioning

confidence: 99%

“…Therefore, the stream has to be heated up to 311 K (IQ1 in process 2 ( see Figure 4) and in process A1 (see Figure 3)).The rest of the considerations and the kinetic model can be seen in the previous work. 27 The residence time must be equal to or less than 21 days since the reference study only has data until that day 14 to avoid extrapolation errors. Only a fraction of the raw material is used, 80% at the most.…”

Section: Process 1: Production Of Natural Extractmentioning

confidence: 99%

“…The ratio between the molar fraction in the liquid phase and the gas phase is given by Eq. (27). A bed of Fe2O3 (D) is used to remove the H2S, a scrubber (SC) is used to reduce the amount of ammonia down to 5%, and a pressure swing adsorption (PSA) is used to remove the rest of the ammonia, the water and95% of the CO2 of the biogas 28 .…”

Section: Figure 5-profile Of the Chemical Species Along The Anaerobic Digestionmentioning

confidence: 99%

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Integrated Design of Biorefineries Based on Spent Coffee Grounds

Taifouris

Corazza

Martı́n

2021

Ind. Eng. Chem. Res.

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The circular economy concept applied to the management of Spent coffee Ground is an opportunity to obtain a portfolio of high added-value products and reducing the environmental impact while increasing the profitability and reducing the energy consumption of the soluble coffee production process. A systematic analysis of the alternatives is performed to unveil integration opportunities and find synergies aiming at the optimal set of processes and products. In this work, five products, dry natural extract, dry natural pigment for the textile industry, biogas, digestate, and electrical energy, throughout 3 different processes are considered. A systematic techno-economic analysis of all processes is carried out and two processes were found economically promising, the production of power and the production of natural extract and pigment. The production of natural pigment and natural extract is the most profitable process with a profit 10 times greater than the production of electrical energy. The operation and investment costs are 4.25 MM€/year and 14.1 MM€ respectively. The use of SCG to produce biodiesel is discarded after the analysis. Therefore, it is possible to achieve economic benefit from the treatment of this waste.

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