Effect of Catalyst on Yield of Liquid Products from Biomass via Pyrolysis

Güllü, Doğan

doi:10.1080/00908310390207783

Cited by 35 publications

(4 citation statements)

References 7 publications

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“…In most studies, addition of catalyst has increased the liquid yields while in some studies, it had negative effect and decreased the liquid product yields. Similar results were obtained for solid and gas yields which were either increased or decreased by adding catalyst [39][40][41]. One of the recent studies in which potassium carbonate was used as catalyst carried out by Wang et al [42].…”

Section: Effect Of Temperature and Catalyts On Product Yieldssupporting

confidence: 72%

Bio-Oil Production from Cirsium yildizianum through Pyrolysis in a Fixed-Bed Reactor

Aysu

Bengü

2014

J. Appl. Sol. Chem. Model.

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Pyrolysis of Cirsium yildizianum samples were carried out in a fixed-bed tubular reactor with (tincal, colemanite and ulexite) and without catalyst catalyst at three different temperatures (350, 450, 550 o C) with a constant heating rate of 50 o C/min. The yields of bio-char, bio-oil and gas produced along with the compositions of the resulting bio-oils were determined by elemental, Fourier transform infrared spectroscopy (FT-IR) and Gas chromatography/ mass spectrometry (GC-MS). The effects of pyrolysis parameters including temperature and catalyst on product yields were investigated. The results indicate that both temperature and catalyst had signficant effect on conversion of Cirsium yildizianum into solid, liquid and gas products. The highest liquid (bio-oil) yield of 40.62% including aqueous phase was obtained in the presence of colemanite (10%) as catalyst at 550 o C. 79 different compounds were identified by GC-MS in bio-oils obtained at 550 o C.

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Section: Effect Of Temperature and Catalyts On Product Yieldssupporting

confidence: 72%

Bio-Oil Production from Cirsium yildizianum through Pyrolysis in a Fixed-Bed Reactor

Aysu

Bengü

2014

J. Appl. Sol. Chem. Model.

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“…Besides ethanol, several other products can be obtained following the hydrolysis of the carbohydrates in the lignocellulosic materials. For instance, xylan/xylose contained in hemicelluloses can be thermally transformed into furans (2-furfuraldeyde, hydroxymethil furfural), short chain organic acids (formic, acetic, and propionic acids), and cheto compounds (hydroxy-1-propanone, hydroxy-1-butanone) (Güllü, 2010;Bozell & Petersen, 2010). Fig.…”

Section: Products From Lignocellulosic Biomassmentioning

confidence: 99%

Hydrolysis of Lignocellulosic Biomass: Current Status of Processes and Technologies and Future Perspectives

Verardi¹,

De²,

Ricca³

et al. 2012

Bioethanol

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“…Gullu investigated the effect of Na 2 CO 3 and K 2 CO 3 catalysts on the yield of the liquid product obtained from flash pyrolysis of tea waste. 25 Catalytic pyrolysis experiments were performed in order to increase the yield of methanol, which is one of the most valuable fractions in the liquid product. Methanol yield was 8.65 % for non-catalytic run.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen conversion using gasification of tea factory wastes

et al. 2020

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In this study, gasification performance and importance of hydrogen production using waste of a tea factory were evaluated. A mathematical model was developed for the gasification system, which includes a water gas shift reactor used for hydrogen purification. The gasifier temperature was 877 °C for the developed model. The model has been validated against experimental data from an 80 kW t h cylindrical downdraft gasifier, given in the literature for syngas composition for three different air-to-fuel ratios. With the developed model, hydrogen production from tea wastes was achieved to yield a higher level by additionally using a water gas shift reactor. Tea waste (1000 kg) was gasified and after the hydrogen purification process, a total of 4.1 kmol hydrogen was achieved, whereas the amount would be 2.8 kmol gas hydrogen if a normal gasification method were used. The validity of the developed model was verified by comparing the experimental results obtained from the literature with the results of the model under the same conditions. After verification of the developed model, the effect of the moisture content of the biomass and the air/fuel ratio on the composition of the product gas were investigated. These investigations were also confirmed by experimental data. The results show that it is important to convert biomass waste into a clean energy source of hydrogen to minimize its environmental impact.

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Effect of Catalyst on Yield of Liquid Products from Biomass via Pyrolysis

Cited by 35 publications

References 7 publications

Bio-Oil Production from Cirsium yildizianum through Pyrolysis in a Fixed-Bed Reactor

Bio-Oil Production from Cirsium yildizianum through Pyrolysis in a Fixed-Bed Reactor

Hydrolysis of Lignocellulosic Biomass: Current Status of Processes and Technologies and Future Perspectives

Hydrogen conversion using gasification of tea factory wastes

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