Comparative study of MSW heat treatment processes and electricity generation

Aboughaly, Mohamed; Ayoub, Nasser

doi:10.1016/j.joei.2017.04.009

Cited by 28 publications

(23 citation statements)

References 17 publications

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“…plasticized paper) [51,52]. For "diapers and absorbents" stream (around 10 wt%), which contains multi-material and faeces, the most efficient valorization methodology is waste-to-energy [53,54]. Organic waste (around 48 wt%) can be used to generate compost [55], biogas [56] or energy [57].…”

Section: Resultsmentioning

confidence: 99%

Analysis of the relationship between the amount and type of MSW and population socioeconomic level: Bahía Blanca case study, Argentina

Vazquez

Barragán

Castillo

et al. 2020

Heliyon

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The amount and type of municipal solid waste (MSW) in Bahía Blanca (Argentina) were assessed and correlated with population socioeconomic level. In this sense, seven areas with different quality of life were selected. In addition, a parallel study on a control area was performed and validated for obtaining a representative result to provide analogous conclusions for the whole city. From this study, a combination of sorting methodologies is proposed in order to reduce the actual amount of waste sent to landfill. If these methodologies are implemented in Bahia Blanca city, MSW in landfill could be reduced at least 80%. The proposed strategy is to combine waste sorting at source and at destination. An alternative separation at source could be proposed as follows: packaging (including plastic, cans and Tetra Pak), other plastics, paper and glass. The rest of MSW could be included in a container which would be collected daily or three times a week without changing inhabitants' habits and promoting their collaboration. Then, it could be separated at destination for waste-to-energy, composting, and biogas obtaining. Residuals from incinerators and biogas/composting plants would be sent to landfill. On the other hand, regarding the relationship between the proposed strategy and population quality of life, obtained results from this study could be useful to size and to efficiently locate disposal bins/containers for source separation as well as to redesign routes of municipal solid waste collection. Also, this strategy allows to add value to different components of MSW, improving working conditions of waste workers and creating new jobs in Bahia Blanca city.

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Section: Resultsmentioning

confidence: 99%

Analysis of the relationship between the amount and type of MSW and population socioeconomic level: Bahía Blanca case study, Argentina

Vazquez

Barragán

Castillo

et al. 2020

Heliyon

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“…Solid waste pyrolysis is the thermal cracking in inert conditions to gaseous and liquid fuels at lower operating temperatures between 450 and 700 • C in a batch process (30-60 min) time [15]. Pyrolysis is considered a highly selective thermochemical process in comparison with gasification processes and yields liquid hydrocarbon products with a higher heating value than syngas [16]. Gasification is the combustion of solid waste deposits in limited oxygen supply into gaseous products at high temperatures using gasification agents such as oxygen, air, or steam [17][18][19].…”

Section: Incineration and Heat Recoverymentioning

confidence: 99%

Conceptual Process Design, Energy and Economic Analysis of Solid Waste to Hydrocarbon Fuels via Thermochemical Processes

Aboughaly

2021

Processes

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Thermochemical processes use heat and series of endothermic chemical reactions that achieve thermal cracking and convert a wide range of solid waste deposits via four thermochemical processes to hydrocarbon gaseous and liquid products such as syngas, gasoline, and diesel. The four thermochemical reactions investigated in this research article are: incineration, pyrolysis, gasification, and integrated gasification combined cycle (IGCC). The mentioned thermochemical processes are evaluated for energy recovery pathways and environmental footprint based on conceptual design and Aspen HYSYS energy simulation. This paper also provides conceptual process design for four thermochemical processes as well as process evaluation and techno-economic analysis (TEA) including energy consumption, process optimization, product yield calculations, electricity generation and expected net revenue per tonne of feedstock. The techno-economic analysis provides results for large scale thermochemical process technologies at an industrial level and key performance indicators (KPIs) including greenhouse gaseous emissions, capital and operational costs per tonne, electrical generation per tonne for the four mentioned thermochemical processes.

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“…Table 3. Gasification reactions and their reaction enthalpy in standard conditions (P = 1 atm, T = 25 • C) [36]. the main gasification reactions considered are summarized in Table 3.…”

Section: Description Of the Processmentioning

confidence: 99%

“…Gasification reactions and their reaction enthalpy in standard conditions (P = 1 atm, T = 25 °C)[36].…”

mentioning

confidence: 99%

Modeling of a Plasma-Based Waste Gasification System for Solid Waste Generated Onboard of Typical Cruiser Vessels Used as a Feedstock

Lisi

Aboughaly²,

Damideh³

et al. 2020

Designs

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In this paper, a model for a single stage plasma gasification system for marine vessels characterized by significant waste production is proposed. The main objective of the model is to investigate the effects of different feedstock compositions on key parameters, such as electrical power produced and heat recovered. The different types of waste generated onboard are described along with their environmental impacts. Specific attention is given to solid wastes, sewage sludge and plastic wastes as potential feedstock. Their average generation, proximate and ultimate analysis are defined, as input to the process model. The process assumptions used in the simulation model are illustrated. The system model is divided into five units: the pre-treatment unit; the gasification unit; the syngas cleaning unit; the energy conversion unit; and the heat recovery unit. Four operational scenarios are investigated to consider several variations of composition of the main feedstock. From the results of the simulations, the system model shows good feedstock flexibility, and the possibility of operating in net electricity gain conditions. The cold gas efficiency of the process is also assessed and its maximum value is obtained for the highest concentrations of sewage sludge (33.3%) and plastic (16.7%). Other parameters investigated are the combustion temperature, sorbent consumption in the cleaning process, feedstock and syngas lower heating value LHV.

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Comparative study of MSW heat treatment processes and electricity generation

Cited by 28 publications

References 17 publications

Analysis of the relationship between the amount and type of MSW and population socioeconomic level: Bahía Blanca case study, Argentina

Analysis of the relationship between the amount and type of MSW and population socioeconomic level: Bahía Blanca case study, Argentina

Conceptual Process Design, Energy and Economic Analysis of Solid Waste to Hydrocarbon Fuels via Thermochemical Processes

Modeling of a Plasma-Based Waste Gasification System for Solid Waste Generated Onboard of Typical Cruiser Vessels Used as a Feedstock

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