Application of orange peel waste in the production of solid biofuels and biosorbents

Santos, Carolina Monteiro; Dweck, Jo; Viotto, Renata Silva; Rosa, André Henrique; Morais, Leandro Cardoso de

doi:10.1016/j.biortech.2015.07.114

Cited by 106 publications

(47 citation statements)

References 28 publications

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“…Kissinger method (which is also named as T max method) uses the temperature where the maximum mass loss rate is observed . By using T max at different heating rates, it is possible to find out E a and A as follows:

\ln ((), \frac{β}{T_{\max}^{2}}) = \ln ([], A \cdot \frac{R}{E_{a}}) - \frac{E_{a}}{R \cdot T_{\max}}

…”

Section: Methodsmentioning

confidence: 99%

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Kabakcı

2019

Env Prog and Sustain Energy

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This study compares the pyrolysis and combustion characteristics with the kinetics of wood sawdust and its hydrochar. Wood sawdust hydrochar was obtained by the hydrothermal treatment of wood sawdust (biomass/water: 1 g/4 mL) at 220°C, where the residence time was set as 90 min. After hydrothermal carbonization, carbon content and heating value were both increased by 14%. Pyrolysis and combustion of wood sawdust and its hydrochar were performed by thermogravimetric analysis at 10, 20, 30, and 40°C/min. Kissinger–Akahira–Sunose (KAS) method, Friedman method, Flynn–Wall–Ozawa (FWO) method, and Kissinger method were used for analyzing the pyrolysis data. For combustion, only KAS and FWO methods were used to determine the kinetic parameters. As compared to wood sawdust pyrolysis, average activation energy of hydrochar pyrolysis was lower (150.36 kJ/mol by using KAS method, 153.05 kJ/mol by using FWO method). Based on mean activation energies, pyrolysis reaction of hydrochar was more favorable than its combustion. In combustion, average activation energy of hydrochar combustion reaction was higher; indicating that combustion of wood sawdust was more favorable.

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\ln ((), \frac{β}{T_{\max}^{2}}) = \ln ([], A \cdot \frac{R}{E_{a}}) - \frac{E_{a}}{R \cdot T_{\max}}

…”

Section: Methodsmentioning

confidence: 99%

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Kabakcı

2019

Env Prog and Sustain Energy

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“…Furthermore, ethanol is difficult distill from fermentation broth because it contains about 70% of the energy content of gasoline and is miscible with water . Advanced biofuels can be produced from cellulosic biomass, a nonfood raw material including wastes, including proteins, wheat straw, switchgrass, and orange peel waste by expanding microbial metabolic pathways . These raw materials are low‐cost agricultural wastes or easily cultivated and fast‐growing crops.…”

Section: Research Status Of Biofuels By Expanding Microbial Metabolicmentioning

confidence: 99%

Enhancing microbial production of biofuels by expanding microbial metabolic pathways

Chen

2017

Biotech and App Biochem

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Fatty acid, isoprenoid, and alcohol pathways have been successfully engineered to produce biofuels. By introducing three genes, atfA, adhE, and pdc, into Escherichia coli to expand fatty acid pathway, up to 1.28 g/L of fatty acid ethyl esters can be achieved. The isoprenoid pathway can be expanded to produce bisabolene with a high titer of 900 mg/L in Saccharomyces cerevisiae. Short- and long-chain alcohols can also be effectively biosynthesized by extending the carbon chain of ketoacids with an engineered "+1" alcohol pathway. Thus, it can be concluded that expanding microbial metabolic pathways has enormous potential for enhancing microbial production of biofuels for future industrial applications. However, some major challenges for microbial production of biofuels should be overcome to compete with traditional fossil fuels: lowering production costs, reducing the time required to construct genetic elements and to increase their predictability and reliability, and creating reusable parts with useful and predictable behavior. To address these challenges, several aspects should be further considered in future: mining and transformation of genetic elements related to metabolic pathways, assembling biofuel elements and coordinating their functions, enhancing the tolerance of host cells to biofuels, and creating modular subpathways that can be easily interconnected.

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“…The management of these wastes, which produce odor and soil pollution, represents a major problem for the food industry (Ma et al, 1993). However, numerous studies have shown that orange peel can be further used to produce citric acid (Torrado et al, 2011) or even pyrolyzed orange peels as solid biofuels and biosorption of heavy metals (Santos et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature Extraction on the Potassium and Calcium Content in the Lemon and Orange Water Peel Extracts

Bratovčić

2020

JAC

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The aim of this study is to examine the effect of temperature extraction on the potassium (K) and calcium (Ca) contents in orange and lemon peel extracts. The extractions were done at 62 ºC and 92 °C for 15 minutes and atmospheric pressure in distilled water. The fruit peel content in the extraction mixture was 5 % (w/v) in all samples. Calcium (Ca) and potassium (K) concentrations have been determined by flame photometric method. This research has revealed that by increasing the temperature of extraction, in particular, the concentration of Ca and K concentrations increased as applied extraction temperatures increased. The concentration of potassium is higher than the concentration of calcium in orange and lemon extracts, respectively. The concentration of K was 308 mg/l at 62 ºC and 361 mg/l at 92 ºC in lemon extracts, while in orange extracts the concentration of K was 476 mg/l at 62 ºC and 483 mg/l at 92 ºC. The concentration of Ca was 70.8 mg/l at 62 ºC and 71.9 mg/l at 92 ºC in lemon extracts, while in orange extracts the concentration of Ca was 91 mg/l at 62 ºC and 93.6 mg/l at 92 ºC. These results confirm that both citrus could be a very valuable source of potassium and calcium which are needed micronutrients to ensure the water and electrolyte balance and to build and maintain strong bones, proper function of muscles and nerves.

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Application of orange peel waste in the production of solid biofuels and biosorbents

Cited by 106 publications

References 28 publications

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Enhancing microbial production of biofuels by expanding microbial metabolic pathways

Effect of Temperature Extraction on the Potassium and Calcium Content in the Lemon and Orange Water Peel Extracts

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