Production of bio-oil from rice straw and bamboo sawdust under various reaction conditions in a fast pyrolysis plant equipped with a fluidized bed and a char separation system

Jung, Su-Hwa; Kang, Bo-Sung; Kim, Joo-Sik

doi:10.1016/j.jaap.2008.04.001

Cited by 208 publications

(124 citation statements)

References 19 publications

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“…This increase in the oil yield may be as a result of degradation of more lignin, which usually occurs at such a high temperature. Further increase in temperature to 650 °C led to reduction in the oil yield (31.97%), which can be attributed to secondary reactions of pyrolysis vapor at elevated temperature (Jung et al 2008;Imam and Capareda 2012). The yield of non-condensable gas increased with increasing reaction temperature throughout the process.…”

Section: Effects Of Nitrogen Flow Rate and Reaction Temperature On Pymentioning

confidence: 99%

Pyrolysis of Napier Grass in a Fixed Bed Reactor: Effect of Operating Conditions on Product Yields and Characteristics

Mohammed

Abakr

Kazi

et al. 2015

BioRes

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This study presents a report on pyrolysis of Napier grass stem in a fixed bed reactor. The effects of nitrogen flow (20 to 60 mL/min), and reaction temperature (450 to 650 °C) were investigated. Increasing the nitrogen flow from 20 to 30 mL/min increased the bio-oil yield and decreased both bio-char and non-condensable gas. 30 mL/min nitrogen flow resulted in optimum bio-oil yield and was used in the subsequent experiments. Reaction temperatures between 450 and 600 °C increased the bio-oil yield, with maximum yield of 32.26 wt% at 600 o C and a decrease in the corresponding bio-char and non-condensable gas. At 650 °C, reductions in the bio-oil and bio-char yields were recorded while the non-condensable gas increased. Water content of the bio-oil decreased with increasing reaction temperature, while density and viscosity increased. The observed pH and higher heating values were between 2.43 to 2.97, and 25.25 to 28.88 MJ/kg, respectively. GC-MS analysis revealed that the oil was made up of highly oxygenated compounds and requires upgrading. The bio-char and non-condensable gas were characterized, and the effect of reaction temperature on the properties was evaluated. Napier grass represents a good source of renewable energy when all pyrolysis products are efficiently utilized..

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Section: Effects Of Nitrogen Flow Rate and Reaction Temperature On Pymentioning

confidence: 99%

Pyrolysis of Napier Grass in a Fixed Bed Reactor: Effect of Operating Conditions on Product Yields and Characteristics

Mohammed

Abakr

Kazi

et al. 2015

BioRes

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“…The study obtained bamboo biocrude oil with a low O/C ratio and a HHV of 33.54 MJ/kg. Upon comparison of the data obtained by Kantarelis et al (2010) with data from other literature (Jung et al 2008;Lin et al 2013), it was seen that the oil produced from high-temperature steam pyrolysis had a higher carbon and hydrogen content and lower oxygen content. Dong and Xiong (2014) studied the pyrolysis kinetics of moso bamboo, which was conducted in a conventional thermogravimetric analyzer and a microwave thermogravimetric analyzer.…”

Section: Biocrude Oilmentioning

confidence: 77%

“…The reaction was conducted at 405 °C. Jung et al (2008) observed the differences in biocrude oils acquired from various lignocellulosic biomasses and discovered that bamboo biocrude oils possessed less aromatic hydrocarbons and nitrogen containing compounds than the alfalfa stem biocrude oils. It was also discovered that the levoglucosan levels in the bamboo biocrude oils were five times lower than that of the rice straw biocrude oil.…”

Section: Biocrude Oilmentioning

confidence: 99%

“…Ren et al (2013) also reported that the main peaks of the IR spectrum for the biogas were CH4, CO2, CO, H2O, acids, aldehydes, aromatics, ethers, and alcohols. Jung et al (2008) stated that the HHV of the product gas increased with respect to the pyrolysis temperature, and the maximum HHV of the biogas was approximately 9 MJ/kg.…”

Section: Combustible Gas From Thermochemical Conversionmentioning

confidence: 99%

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Bioenergy Production from Bamboo: Potential Source from Malaysia’s Perspective

Chin

Ibrahim

Hakeem

et al. 2017

BioRes

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Global energy sectors are facing the crucial challenge of sustainability and diversification of energy resources. Seeking renewable resources with a sustainable supply is therefore a matter of the utmost concern. In this respect, bamboo, a renewable lignocellulosic material and non-food biomass, has great potential to be utilized to produce energy. Several studies have been conducted on a wide range of bamboo species and the results have shown that bamboo could potentially be used as a suitable fuel because it shares desirable fuel characteristics present in other woody biomass. Bamboo can be used as an energy source by converting it into solid, liquid, and gaseous fuels. However, to utilize bamboo as a high promise energy crop resource for biofuels, a secure and stable supply is required. Therefore, additional information on the availability, cultivation, and harvesting operations of bamboo is vital to ensure the practicability of the idea. The objective of this review is to highlight the potential of bamboo as an alternative source of bioenergy production, particularly in a Malaysian context, with emphasis on the concepts, pretreatment, and conversion technologies.

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“…[20][21][22][23] Due to the variety of chemical compounds, bio-oils can be used as bio-fuel or for the production of chemical products, 24,25 such as the following: levoglucosan in the manufacturing of pharmaceuticals, biodegradable polymers and surfactants, and hydroxyacetaldehyde, the most active meat-browning agent. 23 Several researchers reported the characterization of bio-oil by gas chromatography (GC) with high efficiency, precision and simplicity, especially when coupled with mass spectrometry (MS).…”

Section: Introductionmentioning

confidence: 99%

GC×GC-TOF/MS Analysis of Bio-Oils Obtained from Pyrolysis of Acuri and Baru Residues

Cardoso¹,

Machado²,

Maia³

et al. 2016

Journal of the Brazilian Chemical Society

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Bark of acuri and endocarp of baru are residues generated during the processing of these fruits. One alternative to consider is the pyrolysis of these materials to generate bio-oils, opening the perspective for the production of environment-friendly, added value products. Samples of acuri and baru were subjected to laboratorial scale pyrolysis. At the optimized pyrolysis conditions, the bio-oils yields (m/m) were 30% for bark of acuri and 29% for endocarp of baru. Next, the obtained bio-oil was submitted to proximate analysis and GC×GC-TOF/MS (two-dimensional gas chromatography with time-of-flight mass spectrometric detection). The bio-oil generated from the bark of acuri proved to be of the highest complexity with 113 identified compounds, while the bio-oil generated from the endocarp of baru sample led to 71 identified compounds. A total of 29 compounds were confirmed using standards in the acuri bark bio-oil, while 23 compounds were confirmed for endocarp of baru bio-oil. There was a predominance of phenols and ketones for the bio-oil generated from acuri bark, and hydrocarbons and phenols for the bio-oil from baru endocarp.

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Production of bio-oil from rice straw and bamboo sawdust under various reaction conditions in a fast pyrolysis plant equipped with a fluidized bed and a char separation system

Cited by 208 publications

References 19 publications

Pyrolysis of Napier Grass in a Fixed Bed Reactor: Effect of Operating Conditions on Product Yields and Characteristics

Pyrolysis of Napier Grass in a Fixed Bed Reactor: Effect of Operating Conditions on Product Yields and Characteristics

Bioenergy Production from Bamboo: Potential Source from Malaysia’s Perspective

GC×GC-TOF/MS Analysis of Bio-Oils Obtained from Pyrolysis of Acuri and Baru Residues

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