Characteristics and Potential Values of Bio-Products Derived from Switchgrass Grown in a Saline Soil Using a Fixed-Bed Slow Pyrolysis System

Yue, Yan; Lin, Qimei; Irfan, Muhammad; Chen, Qun; Zhao, Xingbo; Li, Guitong

doi:10.15376/biores.12.3.6529-6544

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…4b), while B PA lower, 0.52-17.55 cmol kg −1 . Our results fell within the reported ranges of the surface charge (Yue et al 2017;Chen et al 2019).…”

Section: Surface Chargesupporting

confidence: 92%

“…The cellulose, hemicellulose, and lignin contents in the feedstocks were determined by the Van Soest method (Van Soest et al 1991). The ash content was determined by heating at 550 °C for 4 h in a muffle furnace (Yue et al 2017). The contents of carbon (C), hydrogen (H), and nitrogen (N) were measured with an elemental analyzer (Elementar 2019).…”

Section: Analysis Of Biomass and Biocharmentioning

confidence: 99%

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Comparison of biochar properties from 5 kinds of halophyte produced by slow pyrolysis at 500 °C

Xiao

Lin

et al. 2022

Biochar

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Glycophyte biomass-derived biochars are currently concerned in most studies. However, little attention is given to the characteristics of halophyte-derived biochars. In this study, five typical halophytes of euhalophytes (Suaeda altissima, Suaeda salsa, and Kalidium foliatum), recretohalophytes (Phragmites australis), and pseudohalophytes (Tamarix chinensis) which are widely distributed in the arid and semiarid regions of northwestern China were selected for producing biochars with a slow pyrolysis process at 500 °C for 1 h. The harvested biochars were characterized in elemental content, pores, surface area, and surface charges, and then their potential value as a soil conditioner was evaluated. The results showed that the halophyte-derived biochars had variable ash and Na+ contents, ranging from 7.26 to 23.64% and 1.06 to 33.93 g kg−1 respectively. The EC value of the biochars ranged from 1.76 to 23.45 mS cm−1. The biochar derived from Suaeda altissima had a very low specific surface area (SSA), 3.50 m2 g−1, while that derived from Phragmites australis (BPA) had a very high SSA, 344.02 m2 g−1. All the biochars carried both positive and negative charges. Kalidium foliatum biochar (BKF) possessed more negative charges, while Suaeda altissima biochar (BSA) contained more positive charges. In general, the halophyte biochars had a higher ash content and lower point of zero net charge (PZNC) value, compared with the biochars derived from glycophytes, which would imply their higher potential value as an acidic soil conditioner.

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“…4b), while B PA lower, 0.52-17.55 cmol kg −1 . Our results fell within the reported ranges of the surface charge (Yue et al 2017;Chen et al 2019).…”

Section: Surface Chargesupporting

confidence: 92%

Section: Analysis Of Biomass and Biocharmentioning

confidence: 99%

Comparison of biochar properties from 5 kinds of halophyte produced by slow pyrolysis at 500 °C

Xiao

Lin

et al. 2022

Biochar

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“…Decrease of pore size in the catalysts activated at higher temperature obstructs the adsorption of iodine molecules onto the catalyst surface. Even though the iodine molecules are relatively smaller (0.6 nm, [19]) than the average pore sizes of the catalyst, the new pores generated at the high activation temperature may be smaller than or nearly the same size as the iodine molecules, thus hindering the adsorption process. Shimada et al [20] also found a remarkable decrease in the iodine adsorption number which is attributed to the collapse of pores by the excessive activation and an increase in the ash content in the activated carbon.…”

Section: Resultsmentioning

confidence: 99%

Carbon-Based Catalyst from Pyrolysis of Waste Tire for Catalytic Ethanol Dehydration to Ethylene and Diethyl Ether

Chaichana

Wiwatthanodom

Jongsomjit

2019

International Journal of Chemical Engineering

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This work investigated the use of waste tire as a source of carbon in preparation of carbon-based catalysts for applying in ethanol dehydration. The pyrolysis of waste tire was performed to obtain the solid carbon, and then it was treated with two different acids including HCl and HNO3 prior to the activation process with different temperatures to gain suitable carbon catalysts. All carbon catalysts were characterized using nitrogen physisorption, XRD, FTIR, and acid-base titration. The catalysts were tested for catalytic ethanol dehydration in a micropacked-bed reactor under the temperature range from 200°C to 400°C. It revealed that the ethanol conversion increased with increasing the reaction temperature for all catalysts. The carbon catalyst treated with HCl and calcined at 420°C (AC_H420) exhibited the highest ethanol conversion of 36.2% at 400°C having ethylene and diethyl ether selectivity of 65.9 and 33.5%, respectively. The high activity of this catalyst can be attributed to the high acid density at the surface (18.5 μmol/m2), which was significantly higher than those of most other catalysts (less than 8.0 μmol/m2).

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“…It is renewable, ecofriendly and has rheological properties comparable to conventional asphalt. Bio-oil may be derived from a wide range of biomass sources throughout the globe, including algae (Abdul Latif et al, 2019), switchgrass (Yue et al, 2017), corn stover (Yang et al, 2017), swine manure (Fini et al, 2011;Mills-Beale et al, 2014;Wang et al, 2020b), waste wood resources (Gürer et al, 2020;Ingrassia et al, 2020;Yang et al, 2013;2014) and waste cooking oil (Sun et al, 2016;Wen et al, 2013;Zahoor et al, 2021). Particularly in Malaysia, the extraction of palm oil results in a substantial amount of biomass waste, including mesocarp fruit fibres (MF), palm kernel shells (PKS), palm oil mill effluent (POME), and empty fruit bunches (EFB).…”

Section: Introductionmentioning

confidence: 99%

Characterisations of Bio-Asphalt Incorporating Palm Bio-Oil From Waste Empty Fruit Bunches

XIN¹

2022

JOPR

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Bio-asphalts feature economic, social, and environmental benefits and may thus be potentially substituted for petroleum-based asphalt in asphaltic concrete mixtures. This article presents the experimental investigation of adding palm bio-oil derived from empty fruit bunches (WBO) into the conventional asphalt binder at 5, 10 and 15 wt%. The physical properties of bio-asphalt were assessed via the penetration, softening point, rotational viscosity, ductility, and mass loss after the rolling thin-film oven (RTFO) tests. Fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) tests were used to identify the chemical composition and functional groups of the bio-oil and bio-asphalt samples. The binder coatability was assessed by static water immersion and water boiling tests. The addition of bio-oil lowers the softening point and viscosity of the binder while increasing its penetration, ductility and mass loss after RTFO. The main absorption peaks for WBO bio-oil and WBO bio-asphalts were corresponding to C=H stretching of alkanes and aliphatic compounds, respectively. The bio-oil was mostly composed of aromatic and oxygenated compounds, as observed from GC-MS results, which justified the FTIR analysis for WBO bio-oil. The addition of WBO bio-oil improved the bonding characteristics of asphalt-aggregates, indicatingthat it has a significant potential for use in the production of bio-asphalt.

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Characteristics and Potential Values of Bio-Products Derived from Switchgrass Grown in a Saline Soil Using a Fixed-Bed Slow Pyrolysis System

Cited by 8 publications

References 34 publications

Comparison of biochar properties from 5 kinds of halophyte produced by slow pyrolysis at 500 °C

Comparison of biochar properties from 5 kinds of halophyte produced by slow pyrolysis at 500 °C

Carbon-Based Catalyst from Pyrolysis of Waste Tire for Catalytic Ethanol Dehydration to Ethylene and Diethyl Ether

Characterisations of Bio-Asphalt Incorporating Palm Bio-Oil From Waste Empty Fruit Bunches

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