Overview of recent advances in thermo-chemical conversion of biomass

Zhang, Linghong; Xu, Chunbao; Champagne, Pascale

doi:10.1016/j.enconman.2009.11.038

Cited by 1,007 publications

(451 citation statements)

References 86 publications

Supporting

Mentioning

437

Contrasting

Unclassified

Order By: Relevance

“…Closely associated to cellulose are the hemicelluloses, which are heterogeneous polysaccharides structured mainly of hexoses and pentoses, arranged in shorter and branched chains (Zhang, 2010). Hemicelluloses are less stable than cellulose and form 20 to 40 wt% of the biomass (Zhang et al, 2010a). Lignin is a structurally more complex biopolymer than polysaccharides and very resistant to thermal degradation.…”

Section: Chemical Composition Of Feedstockmentioning

confidence: 99%

See 1 more Smart Citation

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Novotny

Maia

Carvalho

et al. 2015

Rev. Bras. Ciênc. Solo

175

View full text Add to dashboard Cite

Biochar (carbonized biomass for agricultural use) has been used worldwide as soil amendment and is a technology of particular interest for Brazil, since its "inspiration" is from the historical Terra Preta de Índios (Amazon Dark Earth), and also because Brazil is the world's largest charcoal producer, generating enormous residue quantities in form of fine charcoal and due to the availability of different residual biomasses, mainly from agroindustry (e.g., sugar-cane bagasse; wood and paper-mill wastes; residues from biofuel industries; sewage sludge etc), that can be used for biochar production, making Brazil a key actor in the international scenario in terms of biochar research and utilization). In the last decade, numerous studies on biochar have been carried out and now a vast literature, and excellent reviews, are available. The objective of this paper is therefore to deliver a critical review with some highlights on biochar research, rather than an exhaustive bibliographic review. To this end, some key points considered critical and relevant were selected and the pertinent literature "condensed", with a view to guide future research, rather than analyze trends of the past.

show abstract

Section: Chemical Composition Of Feedstockmentioning

confidence: 99%

“…The typical amount of cellulose in biomass ranges from 40 to 60 wt% (Zhang et al, 2010a). Closely associated to cellulose are the hemicelluloses, which are heterogeneous polysaccharides structured mainly of hexoses and pentoses, arranged in shorter and branched chains (Zhang, 2010).…”

Section: Chemical Composition Of Feedstockmentioning

confidence: 99%

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Novotny

Maia

Carvalho

et al. 2015

Rev. Bras. Ciênc. Solo

175

View full text Add to dashboard Cite

show abstract

“…The world's annual production of plastic materials has reached around 245 million tonnes today with Europe representing 25% of the global plastics production (APME, 2009) and, at present, over 1 billion tyres are sold worldwide each year and subsequently just as many fall into the category of end of life tyres (ETRMA, 2010). Also, biomass wastes are produced in huge amounts from different sources and recovery routes have to be developed for these wastes in order to reclaim its organic content in an energetic useful way (Zhang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Characterization of chars produced in the co-pyrolysis of different wastes: Decontamination study

Bernardo

Gonçalves

Lapa

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

Summary: The present work is devoted to the study of chars obtained in the co-pyrolysis of plastics, biomass and tyres wastes. The chars were extracted with several organic solvents in order to assess the more efficient in reducing the organic load of the chars and, therefore, their toxicity. The ability of each selected extractant to remove toxic pollutants was evaluated by comparing the extracts yield and thoroughly characterizing the different crude extracts obtained by combining chemical analysis and toxicity bioassays. Also, the mineral composition of the treated and non treated chars was assessed. The results will allow to conclude which solvent should be used in the decontamination of the pyrolysis chars.

show abstract

“…This method has many advantages compared with conventional gasification technologies. Energy-intensive drying step can be avoided and wet biomass can be directly used [20]. Furthermore, water in its supercritical condition has low density and dielectric constant.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal gasification of different agricultural wastes in supercritical water media for hydrogen production: a comparative study

et al. 2016

View full text Add to dashboard Cite

Conversion of different agricultural residues including almond shell, walnut shell, barley straw, canola stalk, rice straw and wheat straw to hydrogen-rich gas was performed via gasification in supercritical water media in a determined condition. Elemental characterization was performed using CHNSO analyzer. Besides, cellulose and lignin contents in biomass structure were determined according to TAPPI test methods T264cm-97 and T222om-02, respectively. The correlations between the yields of the product gas components with C/H/O ratio in the initial forms of used feedstocks were investigated. In addition, the relation between the components of biomass structure with the yields of main gaseous products was also studied for each feedstock. The maximum hydrogen yield of 8.38 mmol/g was observed for barley straw which has the highest H percentage of 6.5 wt%. Canola stalk with the highest C/H ratio showed the highest total gas yield of 25.3 mmol/g. Canola stalk with highest amount of cellulose and hemicellulose of 67.42 % had the highest CGE of 45 % and barley straw had the highest HGE of 20 %. Higher C/H value and lower oxygen percentage in the initial form of feedstocks resulted in higher total gas and CO 2 yields and lower hydrogen yields. Lignin content in the initial form of the feedstocks was inversely proportional with total gas yields whereas cellulose content showed a straight relation with the total gas yield.

show abstract

Overview of recent advances in thermo-chemical conversion of biomass

Cited by 1,007 publications

References 86 publications

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Characterization of chars produced in the co-pyrolysis of different wastes: Decontamination study

Hydrothermal gasification of different agricultural wastes in supercritical water media for hydrogen production: a comparative study

Contact Info

Product

Resources

About