Effect of solvent and feedstock selection on primary and secondary chars produced via hydrothermal carbonization of food wastes

Pecchi, Matteo; Baratieri, Marco; Goldfarb, Jillian L.; Maag, Alex R.

doi:10.1016/j.biortech.2022.126799

Cited by 44 publications

(25 citation statements)

References 41 publications

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“…Hydrothermal Carbonization of GIS-Identified Food Waste Mixtures. A detailed description of the FW samples is reported in Pecchi et al 31 Briefly, the SRU feedstock mixture was produced by blending commonly disposed consumer food items in representative FW ratios. BSG was obtained from a local brewery in Ithaca, NY; dairy cheese whey (DCW) was sourced from the Cornell Dairy.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…HTC experiments were performed as documented previously. 31 Three temperatures, T HTC (190, 220, and 250 °C), and two reaction times, time HTC (1 and 3 h), were investigated to assess their impact on the HC yield (Y HC , % dry mass), HC heating value (HHV HC , MJ/kg), and gas yield (Y gas , % dry mass) of single FW streams and select mixtures. Mixture ratios were determined according to GIS feedstock mapping to represent available biomass at a given location.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Developing Decision-Making Tools for Food Waste Management via Spatially Explicit Integration of Experimental Hydrothermal Carbonization Data and Computational Models Using New York as a Case Study

Kassem

Pecchi

Maag

et al. 2022

ACS Sustainable Chem. Eng.

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Food systems account for one third of all global anthropogenic greenhouse gas emissions, and food waste (FW) produces one third of landfill emissions in the U.S. To combat global warming, we must upcycle FW by developing closed-loop supply chains�key features of a circular economy�that harmonize technology and policies. New York State (NYS) recently enacted a law requiring generators of >1.8 t/week to redirect FW from landfills to processing centers within 40.2 km of the waste generation. Hydrothermal carbonization could transform FW into a coal-like solid fuel, but there is scant information on the feasibility of implementing this approach under current policy conditions. We developed a model informed by experimental results to evaluate the interplay between HTC plant location, feedstock availability, policies, and economic viability within NYS. Broadly, this is a case study of a new decision-making tool enabling policy makers and entrepreneurs alike to plan effective resource valorization.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Developing Decision-Making Tools for Food Waste Management via Spatially Explicit Integration of Experimental Hydrothermal Carbonization Data and Computational Models Using New York as a Case Study

Kassem

Pecchi

Maag

et al. 2022

ACS Sustainable Chem. Eng.

Self Cite

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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%

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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“…Due to the difference in main compositions, the starch in LSB was easier to be carbonized than the lignin and cellulose in PP. Pecchi et al ( 48 ) concluded that lipid-rich FW could produce a secondary char phase after HTC through ethanol extraction, which was the fuel precursor and could improve the coal-like properties of hydrochar. And carbohydrates and proteins-rich FW produced less secondary char while being rich in short-chain compounds.…”

Section: Effects Of Hydrothermal Treatment On the Properties Of Food ...mentioning

confidence: 99%

Hydrothermal treatment: An efficient food waste disposal technology

et al. 2022

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The quantities of food waste (FW) are increasing yearly. Proper disposal of FW is essential for reusing value-added products, environmental protection, and human health. Based on the typical characteristics of high moisture content and high organic content of FW, hydrothermal treatment (HTT), as a novel thermochemical treatment technology, plays unique effects in the disposal and utilization of FW. The HTT of FW has attracted more and more attention in recent years, however, there are few conclusive reviews about the progress of the HTT of FW. HTT is an excellent approach to converting energy-rich materials into energy-dense fuels and valuable chemicals. This process can handle biomass with relatively high moisture content and allows efficient heat integration. This mini-review presents the current knowledge of recent advances in HTT of FW. The effects of HTT temperature and duration on organic nutritional compositions (including carbohydrates, starch, lipids, protein, cellulose, hemicellulose, lignin, etc.) and physicochemical properties (including pH, elemental composition, functional groups, fuel properties, etc.) and structural properties of FW are evaluated. The compositions of FW can degrade during HTT so that the physical and chemical properties of FW can be changed. The application and economic analyses of HTT in FW are summarized. Finally, the analyses of challenges and future perspectives on HTT of FW have shown that industrial reactors should be built effectively, and techno-economic analysis, overall energy balance, and life cycle assessment of the HTT process are necessary. The mini-review offers new approaches and perspectives for the efficient reuse of food waste.

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Effect of solvent and feedstock selection on primary and secondary chars produced via hydrothermal carbonization of food wastes

Cited by 44 publications

References 41 publications

Developing Decision-Making Tools for Food Waste Management via Spatially Explicit Integration of Experimental Hydrothermal Carbonization Data and Computational Models Using New York as a Case Study

Developing Decision-Making Tools for Food Waste Management via Spatially Explicit Integration of Experimental Hydrothermal Carbonization Data and Computational Models Using New York as a Case Study

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

Hydrothermal treatment: An efficient food waste disposal technology

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