Comprehensive experimental study on energy conversion of household kitchen waste via integrated hydrothermal carbonization and supercritical water gasification

Yan, Mi; Liu, Yu; Yong, Song Han; Xu, Aidong; Zhu, Gaojun; Jiang, Jiahao

doi:10.1016/j.energy.2021.123054

Cited by 53 publications

(18 citation statements)

References 50 publications

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“…Very high HTC temperatures usually result in low yield of solid hydrochar while favoring higher yields of liquid and gaseous products. Table 2 [ 2 , 10 , 40 , 41 , 48 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ] presents the properties of hydrochars developed from HTC of food waste under optimum conditions.…”

Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

“…The effect of temperature in most studies on HTC of food waste is also seen on the amount of volatile matter. During the HTC of kitchen waste, it was observed that a rise in temperature led to a decrease in volatile matter accompanied by a corresponding increase in fixed carbon and ash [ 57 ]. It is hypothesized that the extent of changes in volatile content of hydochar with increasing temperature is also a function of the type of feedstock [ 60 ].…”

Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

“…Thereafter, from 1 to 5 h, the carbon content of hydrochar increased in range: 16–20% [ 10 ]. Some studies have found that the effect of content on hydrogen and fuel ratio of the hydrochar were not very significant, possibly due to reduced mass yield [ 10 , 57 ], even though Gupta et al [ 10 ] found that increasing contact time from 0.5 to 1 h led to a significant increase in H/C ratio.…”

Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments

Khan

Hameed

Siddiqui

et al. 2022

Foods

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This review critically discussed recent developments in hydrothermal carbonization (HTC) of food waste and its valorization to solid fuel. Food waste properties and fundamentals of the HTC reactor were also covered. The review further discussed the effect of temperature, contact time, pressure, water–biomass ratio, and heating rate on the HTC of food waste on the physiochemical properties of hydrochar. Literature review of the properties of the hydrochar produced from food waste in different studies shows that it possesses elemental, proximate, and energy properties that are comparable to sub-bituminous coal and may be used directly as fuel or co-combusted with coal. This work conclusively identified the existing research gaps and provided recommendation for future investigations.

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Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

Section: Hydrothermal Carbonization Of Food Waste For Char Productionmentioning

confidence: 99%

See 1 more Smart Citation

Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments

Khan

Hameed

Siddiqui

et al. 2022

Foods

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“…136 Yan et al evaluated HTC process water in the production of H 2rich syngas by supercritical water gasification and they succeeded in obtaining H 2 gas with a yield of 3.94 mol/kg HKW. 137…”

Section: Hydrothermal Process Watermentioning

confidence: 99%

“…Lucian et al reported that the process water obtained as a result of HTC increased the methane production by 37% in the anaerobic digestion process 135 ; De la Rubia et al reported this rate as 29% 136 . Yan et al evaluated HTC process water in the production of H 2 ‐rich syngas by supercritical water gasification and they succeeded in obtaining H 2 gas with a yield of 3.94 mol/kg HKW 137 …”

Section: Application Areas Of Htc Productsmentioning

confidence: 99%

Hydrothermal carbonization processes applied to wet organic waste streams

Özçimen

İnan

Koçer

et al. 2022

Intl J of Energy Research

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Various organic waste streams are generated daily by human activities such as municipal, agricultural and industrial. The sustainable disposal of these organic wastes is a serious societal challenge. When the disposal process is not efficient, this type of wastes creates important pollution risks for air, soil, underground water and sea. Especially, wastes that have high moisture content cannot be eliminated cost effectively via thermo-chemical conversion by conventional processes such as pyrolysis, gasification and combustion. These

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Experimental investigation and thermomechanical performance evaluation of supercritical water oxidation of n‐dodecane/tributyl phosphate

Mi,

Wang,

Sun

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDNuclear energy has brought immense benefits while also generating a large amount of wastewater that urgently needs to be processed. Supercritical water oxidation (SCWO) technology serves as an efficient method for wastewater treatment. In this study, a SCWO experiment was carried out with organic solvent of 30% tributyl phosphate (TBP) and 70% n‐dodecane. This study investigated the operating parameters and the effects of enhanced oxidation techniques on chemical oxygen demand (COD) removal efficiency. An organic solvent SCWO process was developed, and its energy and exergy efficiencies were assessed using Aspen Plus.RESULTSThe COD removal was about 96.18% at the experimental parameters of 500 °C, 10 min, 25 MPa, oxidation coefficient of 1.5 and material concentration of 4 wt%. COD removal increased by 3.09% with the addition of CeO2. Finally, the overall energy and exergy efficiencies of the SCWO system were found to be 58.8% and 9.1% respectively by Aspen Plus.CONCLUSIONIt was found that the reaction temperature had the greatest effect on the COD removal rate compared with other reaction parameters. The decomposition of organic solvents can be divided into two stages, fast and slow, and the addition of alkali and catalyst can effectively promote the decomposition of waste organic solvents. The experiments showed that SCWO is feasible for the treatment of n‐dodecane/TBP. © 2024 Society of Chemical Industry (SCI).

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Comprehensive experimental study on energy conversion of household kitchen waste via integrated hydrothermal carbonization and supercritical water gasification

Cited by 53 publications

References 50 publications

Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments

Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments

Hydrothermal carbonization processes applied to wet organic waste streams

Experimental investigation and thermomechanical performance evaluation of supercritical water oxidation of n‐dodecane/tributyl phosphate

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