Evaluation of the physico-chemical development of kitchen food wastes through torrefaction - a biodiversity case study

Singh, Dharminder; Yadav, Sanjeev

doi:10.1007/s13399-019-00526-x

Cited by 22 publications

(7 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gasification is a thermochemical process whose main product is syngas, and the composition of syngas, including hydrogen fraction, depends on many factors, such as gasifying agent [111,112], temperature [113], and residence time [111]. On the basis of gasifying agent and temperature, gasification processes can be classified as given in Tab.…”

Section: Thermochemical Route Of Hmentioning

confidence: 99%

“…The physical properties include moisture content, ash content, volatile matter content, and fixed carbon content, and can be determined by proximate analysis [135][136][137][138]. Chemical properties include elemental composition and lignocellulosic composition and can be determined by an elemental analyzer and TAPPI and CPPRI standard methods [139], respectively. Physicochemical composition of a typical kitchen FW is given in Tab.…”

Section: Physicochemical Properties Of Fwmentioning

confidence: 99%

“…However, above 300 °C decomposition of cellulose started, and above 400 °C significant decomposition of lignin began, i.e., torrefaction at temperatures higher than 300 °C was not favorable. In more recent studies by Singh and Yadav [139] and Rago et al [142], smaller ranges of low temperatures from 230 to 290 °C and from 225 to 300 °C were used, respectively. The most suitable torrefaction conditions were recommended to be 290 °C and a residence time of 60 min by Singh and Yadav [139] and 275 °C and a residence time of 1 or 3 h by Rago et al [142].…”

Section: Pretreatment Of Fwmentioning

confidence: 99%

“…In more recent studies by Singh and Yadav [139] and Rago et al [142], smaller ranges of low temperatures from 230 to 290 °C and from 225 to 300 °C were used, respectively. The most suitable torrefaction conditions were recommended to be 290 °C and a residence time of 60 min by Singh and Yadav [139] and 275 °C and a residence time of 1 or 3 h by Rago et al [142]. Apart from torrefaction, hydrothermal carbonization (HTC), also known as wet torrefaction, has also been used for upgrading the quality of raw FW, whereby hydrochar is produced from FW [143].…”

Section: Pretreatment Of Fwmentioning

confidence: 99%

See 3 more Smart Citations

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review

Yadav

Singh

Mohanty³

et al. 2021

Chem Eng & Technol

Self Cite

View full text Add to dashboard Cite

Hydrogen production from food waste by biochemical and thermochemical methods is reviewed herein. Generally, fermentation, a biochemical method, is considered to be more suitable for hydrogen production from food waste, and the performance of fermentation units depends on many factors, e.g., substrate composition, type of pretreatment, reactor configuration, and operating parameters, e.g., organic loading rate, hydraulic retention time, pH, and temperature. Controlling so many factors is tedious, expensive, and results in a slow process. On the other hand, thermochemical methods involve fewer factors and steps, can be much faster and less costly, and can also be used for efficient hydrogen production from food waste. Steam gasification has produced good hydrogen yields from raw food waste.

show abstract

Section: Thermochemical Route Of Hmentioning

confidence: 99%

Section: Physicochemical Properties Of Fwmentioning

confidence: 99%

Section: Pretreatment Of Fwmentioning

confidence: 99%

Section: Pretreatment Of Fwmentioning

confidence: 99%

See 2 more Smart Citations

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review

Yadav

Singh

Mohanty³

et al. 2021

Chem Eng & Technol

Self Cite

View full text Add to dashboard Cite

show abstract

“…Furthermore, MFW is chemically different from the other biowastes as it contains various other compounds, such as starch, fats, oils, waxes and so on (Singh and Yadav, 2021), besides lignin, cellulose and hemicellulose. These additional compounds may contribute to the production of more syngas of different quality from fast pyrolysis and steam gasification as compared to syngas from other biowaste.…”

Section: Introductionmentioning

confidence: 99%

Syngas production from fast pyrolysis and steam gasification of mixed food waste

2022

Self Cite

View full text Add to dashboard Cite

Food waste generation is a worldwide phenomenon and disposing off it in an environmentally benign way has been a challenge. Thermochemical processes have the potential for not only processing mixed food waste effectively from an environmental point of view but also producing bioenergy in all three forms: solid (biochar), liquid (bio-oil) and gas (syngas). In this study, two thermochemical processes – fast pyrolysis and steam gasification – aimed for producing syngas as main product were carried out at three different temperatures: 600°C, 700°C and 800°C, and resulting syngas was characterised and compared for syngas yield, syngas composition, hydrogen yield and high heating value (HHV). The steam flow rate (SFR) was maintained at 0.625 mL min−1 for all gasification experiments. The syngas yield obtained from steam gasification was higher (1.2 m3 kg−1) than the syngas yield from fast pyrolysis (0.81 m3 kg−1). In addition, the hydrogen fraction was much higher in syngas from steam gasification (63.58%) than that from fast pyrolysis (45.03%). Furthermore, carbon conversion efficiency (CCE) and apparent thermal efficiency (ATE) were determined to compare the performance of these two processes. CCE was higher (63.6%) for steam gasification than that for pyrolysis (52.3%) which suggested that steam gasification was much more effective than fast pyrolysis to produce syngas of higher quality.

show abstract

Syngas production from thermochemical conversion of mixed food waste: A review

Yadav

Katiyar

Mesfer

et al. 2023

WIREs Energy & Environment

Self Cite

View full text Add to dashboard Cite

Lately, the generation of leftover food or cooked food waste has turned out to be a critical issue and its disposal in an environmental friendly way has been a challenge. This food waste is being sent for incineration and landfilling which results in a significant contribution to environmental pollution. Therefore, alternative methods for processing food waste in an environmentally benign way have been explored by many researchers. Thermochemical methods are one of those methods and are found to be promising for not only handling the food waste in an ecological way but also producing renewable energy efficiently in the form of bio-oil and syngas along with a solid byproduct, that is, biochar. However, the generation of syngas is favored by only two thermochemical processes, fast pyrolysis, and gasification. Some derived processes such as co-pyrolysis, and co-gasification can also generate syngas. All these

show abstract

Evaluation of the physico-chemical development of kitchen food wastes through torrefaction - a biodiversity case study

Cited by 22 publications

References 17 publications

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review

Syngas production from fast pyrolysis and steam gasification of mixed food waste

Syngas production from thermochemical conversion of mixed food waste: A review

Contact Info

Product

Resources

About

Evaluation of the physico-chemical development of kitchen food wastes through torrefaction - a biodiversity case study

Cited by 22 publications

References 17 publications

Biochemical and Thermochemical Routes of H2 Production from Food Waste: A Comparative Review

Biochemical and Thermochemical Routes of H2 Production from Food Waste: A Comparative Review

Syngas production from fast pyrolysis and steam gasification of mixed food waste

Syngas production from thermochemical conversion of mixed food waste: A review

Contact Info

Product

Resources

About

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review

Biochemical and Thermochemical Routes of H₂ Production from Food Waste: A Comparative Review