Study on the preparation of wood vinegar from biomass residues by carbonization process

Wu, Qiaomei; Zhang, Shouyu; Hou, Baoxin; Zheng, Hong-Jun; WenXiang, Deng; Liu, Dahai; Wen-jiao, Tang

doi:10.1016/j.biortech.2014.12.026

Cited by 109 publications

(57 citation statements)

References 25 publications

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“…Acids and ketones were the most abundant compounds in the products while alcohols, aldehydes, phenols, and furans were the least abundant. The same results were obtained by Wu et al (2015) during his study on wood vinegar obtained from fir and bamboo wood residues. He found out that the components with lower content were aldehydes and alcohols and they were not affected by the pyrolysis temperature.…”

Section: Initial Characterisation Of the Biomass Feedstockssupporting

confidence: 85%

Pyrolysis of Wood Residues in a Cylindrical Batch Reactor: Effect of Operating Parameters on the Quality and Yield of Products

Kizza¹,

Banadda²,

Kabenge³

et al. 2019

JSD

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Appropriate technology for conversion of waste biomass into valuable products has often been overlooked in Sub-Saharan Africa. The influence of operating parameters such as; type of technology, and biomass type, on the conversion process, is a barely known. This contribution aimed at studying the pyrolysis of wood residues and the specific objectives included; (1) characterization of the organic products (wood vinegar and tar) of pyrolysis of wood residues, (2) investigation of the effect of temperature and feedstock type on the yield of products and (3) to carry out an energy balance of the pyrolysis reactor system. Wood residues were pyrolysed in a cylindrical batch reactor at temperatures 300-350, 400-450 and 500-5500C and the organic were characterised using a gas chromatograph (GC) fitted with a flame ionisation detector (FID). The most notable compounds in the wood vinegar and tar were; alcohols, acids, furans, phenols, aldehydes, and ketones. The yield of vinegar, tar and char reduced significantly with increase in temperature and the maximums were produced at 300-3500C whereas the yield of non-condensable gases increased with increase in temperature. The type of feedstock used had no significant effect on the yield and distribution of products. The energy balance of the system revealed that the process was 78% efficient. The presence of the oxygenated aliphatic and aromatic hydrocarbons makes the wood vinegar and tar potential sources of chemicals and engine fuels. Preliminary trials with wood vinegar were lethal to black ants that are predominantly a menace to farmers in Sub-Saharan Africa.

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Section: Initial Characterisation Of the Biomass Feedstockssupporting

confidence: 85%

Pyrolysis of Wood Residues in a Cylindrical Batch Reactor: Effect of Operating Parameters on the Quality and Yield of Products

Kizza¹,

Banadda²,

Kabenge³

et al. 2019

JSD

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“…Several authors have investigated the eff ect of the fi nal temperature and heating rate on the yields of charcoal and liquids from carbonization (Oliveira et al 2006;Paes et al, 2012;Pereira et al 2013), but reports giving specifi c information about variation in the chemical composition of liquids from pyrolysis related to process parameters are scarce. Commonly, higher pyrolysis temperature is related to greater concentration of phenolic compounds in the chemical composition of WV (Wu et al, 2015). Those researchers found the highest yields of WV in the range of 350 -450 °C.…”

Section: Introductionmentioning

confidence: 99%

“…WV is commonly a yellowish or reddish liquid. Its chemical composition is very complex, with more than 200 components already identifi ed (Wu et al, 2015), among which are organic acids, alcohols, ketones, aldehydes, and several other lignin derivatives (Schnitzer et al, 2015). Due to its complex chemical composition and depending on its water concentration, WV has a wide range of applications, e.g., as pest repellents, plant growth promoters, plant fertilizers and additives for animal feed (Tiilikkala et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of Pyrolysis Heating Rate on the Chemical Composition of Wood Vinegar From Eucalyptus Urograndis and Mimosa Tenuiflora

et al. 2019

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Among the parameters used in the biomass carbonization process, the heating rate is one of the most important. The objective of the present work was to assess the influence of different heating rates on the chemical composition of wood vinegar (WV) from two wood species. Dried disks of Eucalyptus grandis and Mimosa tenuiflora wood were used as raw material. Carbonization runs were carried out in a laboratory muffle furnace at three heating rates (0.7, 1.0 and 1.4 °C/min), with 10 runs at each heating rate, reaching 450 °C. Yields of charcoal, pyrolysis liquids and gases were determined for all carbonization conditions. Crude pyrolysis liquid from each wood species and each heating rate was bi-distilled, yielding purified WV samples. These samples were extracted with ethyl acetate and the organic fraction was analyzed by gas chromatography-mass spectrometry to obtain qualitative and semi-quantitative data. Results showed that lower heating rates produce higher yields of charcoal, while higher heating rates lead to higher yields of pyrolysis liquids and gases. Totals of 57 and 42 chemical compounds were identified in the WV of Eucalyptus and Mimosa, respectively, divided into the following groups: alcohols, ketones, furans and pyrans, and phenolic compounds. In general, higher heating rates led to greater contents of furans and pyrans and lower concentrations of phenolic compounds.

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“…Recently, studies on the physicochemical or antimicrobial properties of WVs were quite intensive, mainly focusing on the effects of different pyrolysis parameters such as feedstock, heating rate, residence time, pyrolysis nal temperature and so on. 15,[17][18][19][20] For example, Godfrey et al studied the differences in the chemical composition of the banana waste including leaves, stem and peels generated vinegar, under the pyrolysis conditions as follows: nal pyrolysis temperature of 550 C, a heating rate of 10 C min À1 , and a residence time of 45-90 min. 21 In addition, WVs obtained from pyrolysis of Litchi chinensis have antibacterial activity for a group of clinically antibiotic resistant isolates and all the bacterial strains with a range of disc inhibition zone between 15-19 mm.…”

Section: Introductionmentioning

confidence: 99%

Chemical constituents and antimicrobial activity of wood vinegars at different pyrolysis temperature ranges obtained from Eucommia ulmoides Olivers branches

et al. 2018

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Study on the preparation of wood vinegar from biomass residues by carbonization process

Cited by 109 publications

References 25 publications

Pyrolysis of Wood Residues in a Cylindrical Batch Reactor: Effect of Operating Parameters on the Quality and Yield of Products

Pyrolysis of Wood Residues in a Cylindrical Batch Reactor: Effect of Operating Parameters on the Quality and Yield of Products

Effect of Pyrolysis Heating Rate on the Chemical Composition of Wood Vinegar From Eucalyptus Urograndis and Mimosa Tenuiflora

Chemical constituents and antimicrobial activity of wood vinegars at different pyrolysis temperature ranges obtained from Eucommia ulmoides Olivers branches

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