Volatile production from pyrolysis of cellulose, hemicellulose and lignin

Zhao, Chenxi; Jiang, Enchen; AiHui, Chen

doi:10.1016/j.joei.2016.08.004

Cited by 317 publications

(170 citation statements)

References 30 publications

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“…As mentioned above, the water content in bio-oil is affected by lignin content in biomass so that higher content of lignin in EFB results lower water content. On the other hand, calorific value also affected by chemical composition of the bio-oil as mentioned by Zhao et al [15]. Pyrolysis reaction of lignin produced phenolic compound that gives bio-oil with heating value of 20.4 to 24.5 MJ/kg [16].…”

Section: Calorific Valuementioning

confidence: 96%

Characterization of Bio-Oil from Fast Pyrolysis of Palm Frond and Empty Fruit Bunch

Solikhah¹,

Pratiwi²,

Heryana³

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Section: Calorific Valuementioning

confidence: 96%

Characterization of Bio-Oil from Fast Pyrolysis of Palm Frond and Empty Fruit Bunch

Solikhah¹,

Pratiwi²,

Heryana³

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The yields at 180 • C and 220 • C were quite high for both feedstocks, which may indicate that both sludges were rich in cellulose and lignin. As the cellulose and lignin react with water during HTC at approximately 220-230 • C and 255-265 • C, respectively, PMS remain mostly unreacted at 180 • C and 220 • C [52][53][54][55]. So far, researchers have mainly conducted their research on the mixed (primary and secondary) PMS and have found the solid mass yield in a range between 29 to 65% depending on the mixing ratio of primary to secondary sludges when the HTC was conducted at 260 • C [26,56].…”

Section: Hhv Daf =mentioning

confidence: 99%

“…Some of them are even higher than the HHV daf of coal (e.g., hydrochar of PSS 1 , PSS 2 , and PTS produced at 260 • C). The HHVs of hemicellulose and cellulose have a range between 16.8-18.6 MJ kg −1 and break down around 180 • C and 220-230 • C [53,54,60]. On the other hand, lignin not only has a higher HHV (23.3-25.6 MJ/kg) but also has HTC initiation around 255-265 • C [52,55].…”

Section: Product Distribution and Energy Densificationmentioning

confidence: 99%

Hydrothermal Carbonization of Various Paper Mill Sludges: An Observation of Solid Fuel Properties

et al. 2019

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Each year the pulp and paper industries generate enormous amounts of effluent treatment sludge. The sludge is made up of various fractions including primary, secondary, deinked, fiber rejects sludge, etc. The goal of this study was to evaluate the fuel properties of the hydrochars produced from various types of paper mill sludges (PMS) at 180 °C, 220 °C, and 260 °C. The hydrochars, as well as the raw feedstocks, were characterized by means of ultimate analysis, proximate analysis, moisture, ash, lignin, sugar, and higher heating value (HHVdaf) measurements. Finally, combustion indices of selected hydrochars were evaluated and compared with bituminous coal. The results showed that HHVdaf of hydrochar produced at 260 °C varied between 11.4 MJ/kg and 31.5 MJ/kg depending on the feedstock. This implies that the fuel application of hydrochar produced from PMS depends on the quality of feedstocks rather than the hydrothermal carbonization (HTC) temperature. The combustion indices also showed that when hydrochars are co-combusted with coal, they have similar combustion indices to that of coal alone. However, based on the energy and ash contents in the produced hydrochars, Primary and Secondary Sludge (PPS2) could be a viable option for co-combustion with coal in an existing coal-fired power plant.

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“…Compared to cellulose and lignin, hemicellulose is the most unstable component in Vernicia fordii wood. The onset of its decomposition at about 200 °C is assumed to reflect a lower degree of polymerization compared to cellulose and lignin [45]. The primary weight loss occurred in the temperature range of 320-400 °C.…”

Section: Catalytic Fast Pyrolysis Of Forestry Wood Waste (Vernicia Fomentioning

confidence: 99%

“…Meanwhile, the Compared to cellulose and lignin, hemicellulose is the most unstable component in Vernicia fordii wood. The onset of its decomposition at about 200 • C is assumed to reflect a lower degree of polymerization compared to cellulose and lignin [45]. The primary weight loss occurred in the temperature range of 320-400 • C. In addition, due to the complex stable aromatic rings with various branch structures, the pyrolysis of lignin has been proven to occur continuously through a range of 200-900 • C [46].…”

Section: Catalytic Fast Pyrolysis Of Forestry Wood Waste (Vernicia Fomentioning

confidence: 99%

Catalytic Fast Pyrolysis of Forestry Wood Waste for Bio-Energy Recovery Using Nano-Catalysts

Yue

Yang

et al. 2019

Energies

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Fast pyrolysis is envisioned as a promising technology for the utilization of forestry wood waste (e.g., widely available from tree logging) as resources. In this study, the potential of an innovative approach was explored to convert forestry wood waste of Vernicia fordii (VF) into energy products based on fast pyrolysis combined with nano-catalysts. The results from fast pyrolysis using three types of nano-catalysts showed that the distribution and composition of the pyrolytic product were affected greatly by the type of nano-catalyst employed. The use of nano-Fe2O3 and nano-NiO resulted in yields of light hydrocarbons (alkanes and olefins) as 38.7% and 33.2%, respectively. Compared to the VF sample, the use of VF-NiO and VF-Fe2O3 led to significant increases in the formation of alkanes (e.g., from 14% to 26% and 31%, respectively). In addition, the use of nano-NiO and nano-Fe2O3 catalysts was found to promote the formation of acid, aromatics, and phenols that can be used as chemical feedstocks. The NiO catalyst affected the bio-oil composition by promoting lignin decomposition for the formation of aromatics and phenolics, which were increased from 9.52% to 14.40% and from 1.65% to 4.02%, respectively. Accordingly, the combined use of nano-catalysts and fast pyrolysis can be a promising technique for bio-energy applications to allow efficient recovery of fuel products from forestry wood waste.

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Volatile production from pyrolysis of cellulose, hemicellulose and lignin

Cited by 317 publications

References 30 publications

Characterization of Bio-Oil from Fast Pyrolysis of Palm Frond and Empty Fruit Bunch

Characterization of Bio-Oil from Fast Pyrolysis of Palm Frond and Empty Fruit Bunch

Hydrothermal Carbonization of Various Paper Mill Sludges: An Observation of Solid Fuel Properties

Catalytic Fast Pyrolysis of Forestry Wood Waste for Bio-Energy Recovery Using Nano-Catalysts

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