Techno-economic evaluation of biomass drying in moving beds: The effect of drying kinetics on drying costs

Myllymaa, Tiina; Holmberg, Henrik; Ahtila, Pekka

doi:10.1080/07373937.2018.1492615

Cited by 12 publications

(3 citation statements)

References 54 publications

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“…They reported the effect of the thermal storage system on the annual cash flow and the payback period at different locations within Morocco. Myllymaa et al 49 carried out an economic analysis of the moving bed dryer for wood bark, wood chips, and a mixture of soot sludge and sawdust. As a performance indicator, they used variable cost of drying (COD) per unit mass.…”

Section: Introductionmentioning

confidence: 99%

Sustainability of drying technologies: system analysis

Martynenko¹,

Vieira²

2023

Sustainable Food Technol.

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Section: Introductionmentioning

confidence: 99%

Sustainability of drying technologies: system analysis

Martynenko¹,

Vieira²

2023

Sustainable Food Technol.

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“…The total investment costs of the dryer (I tot,dryer ,) are calculated using the following equation [28]:…”

Section: Economic Analysismentioning

confidence: 99%

Economic Evaluation of Drying of Soot Sludge and Sawdust Mixture at Low Temperatures Using the Characteristic Drying Curve Method

2020

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Soot sludge is a waste stream formed in the fuel oil gasification of formic acid and hydrogen peroxide production. The soot sludge has a high moisture content (95%) and is presently combusted with heavy fuel oil in order to dispose of the sludge. Experimental tests earlier conducted by the authors have shown that the sludge can be convectively dried with sawdust in a fixed bed. By upgrading the sludge from waste to fuel, the utilization of oil can be decreased. In this study, characteristic drying curves (CDC) are determined for the sludge and sawdust mixture. The CDCs are further used to evaluate the economy of the mixture drying in a belt dryer by using the payback period method. Results show that the linear CDCs of the mixture can be used to extrapolate drying data from specific drying conditions to another when the bed height is 200 or 300 mm, and the inlet air temperature 40–100 °C. The economic analysis shows that drying is economical for all inlet air temperatures if the oil price is ≥350 €/t-oil. Sensitivity analyses reveal that the heat, sawdust and emission prices have no remarkable influence on the economy of drying if the oil price does not fall below c. 300 €/t-oil.

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“…In addition to the chemical and petrochemical industries, MBT has attracted much attention in other industries including bioethanol production, hydrogen production, drying, gas separation, and membrane bioreactors, etc. It is worth mentioning that the application of the MBT is at the developing step in these industries, while in the chemical and petrochemical processes it is a mature, reliable, and efficient strategy to control and manage the coke formation and pressure drop .…”

Section: Introductionmentioning

confidence: 99%

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

Shirzad

Karimi

Silva

et al. 2019

Ind. Eng. Chem. Res.

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Moving bed reactors (MBRs) have been proposed as a sign of significant progress in the reaction engineering area for performance improving and energy saving. Since their advent in 1890, the MBRs have attracted a wide acceptance in different industries, while they were first developed for the drying industries. The progress that this technology has made during its evolution led to the introduction of these reactors as a pioneer strategy in other industries including petroleum, petrochemical, pyrolysis, and biomass industries. In the traditional reaction systems, the process performance decreases during the operational conditions, while MBRs have obviated this drawback by having an all-around permanent acceptable efficiency. In this context, the present work provides an overview on the evolution of MBRs by investigating the main experimental and theoretical studies. In this way, the experimental studies have typically taken into account operational conditions and production rates of different products, while in the theoretical research, modeling, and simulation of conventional processes, the evaluation of novel configurations and the optimization techniques have been investigated. In the end, some suggestions are proposed to modify the traditional MBRs as helpful ideas for further studies.

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Techno-economic evaluation of biomass drying in moving beds: The effect of drying kinetics on drying costs

Cited by 12 publications

References 54 publications

Sustainability of drying technologies: system analysis

Sustainability of drying technologies: system analysis

Economic Evaluation of Drying of Soot Sludge and Sawdust Mixture at Low Temperatures Using the Characteristic Drying Curve Method

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

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