In-situ and ex-situ catalytic pyrolysis/co-pyrolysis of empty fruit bunches using mesostructured aluminosilicate catalysts

Shafaghat, Hoda; Lee, Hyung Won; Tsang, Yiu Fai; Oh, Daejun; Jae, Jungho; Jung, Sang‐Chul; Ko, Chang Hyun; Lam, Su Shiung; Park, Young-Kwon

doi:10.1016/j.cej.2019.02.055

Cited by 98 publications

(61 citation statements)

References 43 publications

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“…During this period, the volatile matters released from the material are maximum. e thermal overlapped degradation of the agricultural residues with major cellulose and hemicelluloses content is the primary cause of the highest mass loss at this temperature range [28]. According to TGA curve, the mixed plastics start to decompose at 330 °C.…”

Section: Resultsmentioning

confidence: 99%

Production and Optimization of Energy Rich Biofuel through Co-Pyrolysis by Utilizing Mixed Agricultural Residues and Mixed Waste Plastics

Vibhakar

Sabeenian²,

Kaliappan³

et al. 2022

Advances in Materials Science and Engineering

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Two totally waste products, agricultural residues and mixed plastic wastes collected from domestic and industrial sectors, are used in this study for the recovery of energy rich biofuel and value-added chemicals. The copyrolysis experiments using fixed bed reactor are conducted in order to analyse the synergetic effects. The experimental works are carried out with different proportion of mixed plastics blended with agricultural residues. The reaction temperature and biomass-to-waste plastics ratio on product distributions are studied and addressed. The thermogravimetric analysis conducted at different temperatures clearly distinguished the pyrolysis behaviours of biomass and plastics. The positive synergistic effects defined as higher yield of volatiles compared to predicted yield for bio-oil were identified at particular mixing ratio. Both biomass wastes and plastic wastes show optimal performance of 60.42 wt% oil yield at 60% addition of waste plastics. The oil products obtained under favourable conditions have a higher heating value compared to the oil obtained from biomass pyrolysis. The GC-MS study confirmed that the interaction between biomass and plastics during copyrolysis resulted in decreased oxygenated contents in the oil products.

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Section: Resultsmentioning

confidence: 99%

Production and Optimization of Energy Rich Biofuel through Co-Pyrolysis by Utilizing Mixed Agricultural Residues and Mixed Waste Plastics

Vibhakar

Sabeenian²,

Kaliappan³

et al. 2022

Advances in Materials Science and Engineering

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“…The selection of 80 centigrade is mainly due to the boiling point of ethanol at 78.4°C 31 . After the extraction, the ethanol is basically evaporated, and the extracted oil is basically the substance in pitaya 32,33 . The filtrate of pitaya ethanol extract was obtained by filter paper filtration.…”

Section: Methodsmentioning

confidence: 99%

Constituent diversity of ethanol extracts from pitaya

Zhang

et al. 2020

Asia-Pacific J Chem Eng

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Pitaya is rich in nutrition and unique in function and contains vegetable albumin, anthocyanins, rich vitamins, and water soluble dietary fiber, which are rare in fruits and vegetables. However, researches mostly focused on pitaya cultivation, biological characteristics, fresh‐keeping, and lacked analyses about chemical composition of pitaya. Therefore, ethanol extraction and GC/MS were used to extract and identify the bioactive components in pulp and pericarp of red pitaya and white pitaya. The extracting results showed that percentages of ethanol extracts from pulp and pericarp of red pitaya were 14.5% and 12%, whereas those of white pitaya were 16% and 12%. The GC/MS results showed that different kinds of bioactive constituents were identified in fresh pericarp and pulp of red pitaya and white pitaya. In the four ethanol extracts, there are rich polysiloxane plant organosilicon with total contents of 10.09%, 24.21%, 25.77%, and 23.25%. Meanwhile, there are many heterocyclic substances, and the content of pericarp is much higher than that of pulp. The four ethanol extracts also contain some other bioactive ingredients, such as esters, hydrocarbons, alcohols, amides, halides, and fatty acids, which can be used as raw materials for biomedicine, advanced cosmetics, and skin care products.

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“…In the 2,000-2,135-nm band, the correlation between soil water and normalized spectral reflectance reaches a significant level. [27][28][29] Normalized spectral reflectance can better reflect soil water content. In the 1,390-1,623-nm band, the soil water content has a very significant correlation with the normalized spectral reflectance.…”

Section: Establishment Of Spectral Prediction Model For Soil Water mentioning

confidence: 99%

Detection and analysis of soil water content based on experimental reflectance spectrum data

Fan

2020

Asia-Pacific J Chem Eng

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In order to improve the yield of crops, the method of soil water content detection and analysis based on experimental reflectance spectrum data is adopted. From the four aspects of the farmland soil water detection based on reflection spectrum information, soil water content detection in farmland based on spectral absorption characteristics, remote sensing inversion of soil water content of farmland by reflectance spectra data, and soil water content detection in farmland based on near‐infrared spectroscopy, the soil water content of farmland can be analyzed. The absorption valley near 1,920 nm is the characteristic absorption valley of soil water in the black soil, which can be used to predict the water content of the black soil by the spectral characteristic parameters of the absorption valley; soil water will increase the absorption of radiation energy and reduce the overall reflectance spectra of soil. The quantitative monitoring of soil water content can be achieved by using the remote sensing model of soil water content in this paper. In the range of low soil water content, the reflectance decreases with the increase of soil water content in farmland, whereas in the range of high soil water content, it increases with the increase of soil water content in farmland. The correlation between soil water content and normalized spectral reflectance is positive and negative correlation and mainly negative correlation. The method can detect soil water content in farmland under extreme conditions of different texture, soil water, salinity, and organic matter. It is an effective method for soil water content detection.

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In-situ and ex-situ catalytic pyrolysis/co-pyrolysis of empty fruit bunches using mesostructured aluminosilicate catalysts

Cited by 98 publications

References 43 publications

Production and Optimization of Energy Rich Biofuel through Co-Pyrolysis by Utilizing Mixed Agricultural Residues and Mixed Waste Plastics

Production and Optimization of Energy Rich Biofuel through Co-Pyrolysis by Utilizing Mixed Agricultural Residues and Mixed Waste Plastics

Constituent diversity of ethanol extracts from pitaya

Detection and analysis of soil water content based on experimental reflectance spectrum data

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