Ex-situ catalytic upgrading of vapors from fast microwave-assisted co-pyrolysis of Chromolaena odorata and soybean soapstock

Wang, Yunpu; Wu, Qiuhao; Duan, Dengle; Ruan, Roger; Liu, Yuhuan; Dai, Leilei; Zhou, Yue; Zhao, Yunfeng; Zhang, Shumei; Zeng, Zihong; Jiang, Lin; Yu, Zhenting

doi:10.1016/j.biortech.2018.04.042

Cited by 38 publications

(38 citation statements)

References 33 publications

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“…In recent years, catalytic upgrading of lipid-base pyrolysis vapors over a catalyst fixed bed has been applied as an alternative process to deoxygenate bio-oils volatiles and produce liquid mixtures rich in hydrocarbons with superior transport and physicochemical properties, and the literature reports several studies on the subject [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

et al. 2022

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This work investigated the influence of the reaction time and catalyst-to-residual fat ratio by catalytic upgrading from pyrolysis vapors of residual fat at 400 °C and 1.0 atmosphere, on the yields of reaction products, physicochemical properties (density, kinematic viscosity, and acid value) and chemical composition of bio-oils, over a catalyst fixed-bed reactor of activated carbon pellets impregnated with 10.0 M NaOH, in semi-pilot scale. The experiments were carried out at 400 °C and 1.0 atmosphere, using a process schema consisting of a thermal cracking reactor of 2.0 L coupled to a catalyst fixed-bed reactor of 53 mL, without catalyst and using 5.0%, 7.5%, and 10.0% (wt.) activated carbon pellets impregnated with 10.0 M NaOH, in batch mode. Results show yields of bio-oil decreasing with increasing catalyst-to-tallow ratio. The GC-MS of liquid reaction products identified the presence of hydrocarbons (alkanes, alkenes, ring-containing alkanes, ring-containing alkenes, and aromatics) and oxygenates (carboxylic acids, ketones, esters, alcohols, and aldehydes). For all the pyrolysis and catalytic cracking experiments, the hydrocarbon selectivity in bio-oil increases with increasing reaction time, while those of oxygenates decrease, reaching concentrations of hydrocarbons up to 95.35% (area).

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Section: Introductionmentioning

confidence: 99%

“…Most studies on catalytic upgrade focused on the pyrolysis vapors of lipid-base materials including microalgae such as Chlorella vulgaris [1], Chromolaena odorata [2], Jatropha waste [3][4][5][6], soap stock [2,7,8], waste cooking oil [9,10], cottonseed oil dregs [11], tallow kernel oil [12], and castor seed oil [13].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

et al. 2022

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“…Several researches reported MAP conversion of microalgae with the production of a hydrocarbonrich bio-oil [149][150][151] and their use in co-pyrolytic processes with biomasses [152][153][154]. Fur-thermore, to obtain bio-oils from the algae MAP, several authors ran catalytic upgrading using zeolite materials aiming to improve the aromatic content [155][156][157].…”

Section: Map Of Non-lignocellulosic Biomassesmentioning

confidence: 99%

A Review of Bio-Oil Production through Microwave-Assisted Pyrolysis

et al. 2021

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The issue of sustainability is a growing concern and has led to many environmentally friendly chemical productions through a great intensification of the use of biomass conversion processes. Thermal conversion of biomass is one of the most attractive tools currently used, and pyrolytic treatments represent the most flexible approach to biomass conversion. In this scenario, microwave-assisted pyrolysis could be a solid choice for the production of multi-chemical mixtures known as bio-oils. Bio-oils could represent a promising new source of high-value species ranging from bioactive chemicals to green solvents. In this review, we have summarized the most recent developments regarding bio-oil production through microwave-induced pyrolytic degradation of biomasses.

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“…Avoiding the classical MAP set-ups, Wang et al [80] studied a biomass pyrolysis-fluidized bed reactor using MWs merely as heating source for silicon carbide bed. In this case, the volumetric, selective and fast heating process generally associated with MAP was lost but a high control of process temperature was achieved.…”

Section: Feedstock-induced Variability During Mapmentioning

confidence: 99%

An Overview of Temperature Issues in Microwave-Assisted Pyrolysis

et al. 2019

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Microwave-assisted pyrolysis is a promising thermochemical technique to convert waste polymers and biomass into raw chemicals and fuels. However, this process involves several issues related to the interactions between materials and microwaves. Consequently, the control of temperature during microwave-assisted pyrolysis is a hard task both for measurement and uniformity during the overall pyrolytic run. In this review, we introduce some of the main theoretical aspects of the microwaves–materials interactions alongside the issues related to microwave pyrolytic processability of materials.

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Ex-situ catalytic upgrading of vapors from fast microwave-assisted co-pyrolysis of Chromolaena odorata and soybean soapstock

Cited by 38 publications

References 33 publications

Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

A Review of Bio-Oil Production through Microwave-Assisted Pyrolysis

An Overview of Temperature Issues in Microwave-Assisted Pyrolysis

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