Pyrolysis characteristics of forest residues obtained from different harvesting methods

dc.contributor.author	Das, KC	en
dc.contributor.author	Singh, K	en
dc.contributor.author	Bibens, B	en
dc.contributor.author	Hilten, R	en
dc.contributor.author	Baker, SA	en
dc.contributor.author	Greene, WD	en
dc.contributor.author	Peterson, JD	en
dc.date.accessioned	2014-06-06T06:51:00Z
dc.date.available	2014-06-06T06:51:00Z
dc.date.issued	2011	en
dc.identifier.issn	08838542	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5274
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-79951588613&partnerID=40&md5=74fd30c017c0ca6cd32a5bb9bbf528fe	en
dc.subject	Bioenergy	en
dc.subject	Forest residue	en
dc.subject	Harvesting	en
dc.subject	Pyrolysis	en
dc.subject	Thermo-chemical	en
dc.subject.other	Adsorption capacities	en
dc.subject.other	Ash contents	en
dc.subject.other	Bio oil	en
dc.subject.other	Bio-energy	en
dc.subject.other	Bio-oil yield	en
dc.subject.other	Bio-power	en
dc.subject.other	Biofuel production	en
dc.subject.other	Biomass samples	en
dc.subject.other	Biorefining	en
dc.subject.other	Bulk density	en
dc.subject.other	Char carbon	en
dc.subject.other	Chemical compositions	en
dc.subject.other	Collection methods	en
dc.subject.other	Dried biomass	en
dc.subject.other	Energy density	en
dc.subject.other	Fixed carbons	en
dc.subject.other	Forest residue	en
dc.subject.other	Fuel properties	en
dc.subject.other	Iodine number	en
dc.subject.other	Lower heating value	en
dc.subject.other	Proximate analysis	en
dc.subject.other	Pyrolysis products	en
dc.subject.other	Selection process	en
dc.subject.other	Soil inclusions	en
dc.subject.other	Thermo-chemical	en
dc.subject.other	Thermochemical decomposition	en
dc.subject.other	Ultimate analysis	en
dc.subject.other	Volatile matters	en
dc.subject.other	Wood chip	en
dc.subject.other	Adsorption	en
dc.subject.other	Biomass	en
dc.subject.other	Calorific value	en
dc.subject.other	Cellulose	en
dc.subject.other	Conversion efficiency	en
dc.subject.other	Cracking (chemical)	en
dc.subject.other	Decomposition	en
dc.subject.other	Energy conversion	en
dc.subject.other	Harvesting	en
dc.subject.other	Iodine	en
dc.subject.other	Rating	en
dc.subject.other	Thermogravimetric analysis	en
dc.subject.other	Water content	en
dc.subject.other	Wood products	en
dc.subject.other	Chemical analysis	en
dc.subject.other	Adsorption	en
dc.subject.other	Biomass	en
dc.subject.other	Calorimetry	en
dc.subject.other	Cellulose	en
dc.subject.other	Chemical Analysis	en
dc.subject.other	Crazing	en
dc.subject.other	Decay	en
dc.subject.other	Gravimetry	en
dc.subject.other	Harvesting	en
dc.subject.other	Iodine	en
dc.subject.other	Logging Residues	en
dc.subject.other	Nutrition	en
dc.subject.other	Pyrolysis	en
dc.subject.other	Thermal Analysis	en
dc.title	Pyrolysis characteristics of forest residues obtained from different harvesting methods	en
heal.type	journalArticle	en
heal.publicationDate	2011	en
heal.abstract	Although forests promise an abundant supply for residue biomass for biorefining and biopower applications, heterogeneity generated in residue due to collection methods or selection process (limb, top, and understory etc.) may influence biofuel production in both the thermochemical and fermentation pathways. This article focuses on effects of collection methods on the fuel properties, thermochemical decomposition behavior, and properties of pyrolysis bio-oil and char. Forest residues studied in this research include: clean wood chips (CW), horizontal grinder material (GM), pre-commercially thinned biomass chips (PC-chips), biomass chips produced from pine limbs and tops (T-chips), and biomass chips produced from hardwood understory stems and pine limbs and tops (TU-chips). All biomass samples were characterized by measuring bulk density, moisture, chemical composition (cellulose, hemicellulose, lignin, ash, and extractives), energy density, proximate analysis (moisture, fixed carbon, volatile matter, and ash), and ultimate (C, H, N, S, O) analysis. Pyrolysis was performed on partially dried biomass samples to produce char and bio-oil. The yields of pyrolysis products were calculated. Char was characterized by proximate and ultimate analysis, energy density, and iodine number; and, bio-oil was characterized by pH, viscosity, ultimate analysis, energy density, and water content. In addition, fixed carbon yields, char carbon efficiency, and energy conversion efficiency of char were also calculated. Results showed that the GM had the highest ash content (5.9%) and the lowest energy density (17.03 MJ/kg) among all forest residues evaluated. TU-chips had higher concentration of extractives which resulted in an additional decomposition peak at 300 °C beyond the main peak which appeared at 370 °C responsible for decomposition of cellulose and hemicelluloses in thermogravimetric analysis. Results from this study showed no significant difference in char and bio-oil yields in the various forest residues evaluated; however, GM char which was large in ash content, because of contamination by soil inclusion had lower heating value and adsorption capacity. All residues evaluated produced bio-oil with similar fuel properties.	en
heal.journalName	Applied Engineering in Agriculture	en
dc.identifier.issue	1	en
dc.identifier.volume	27	en
dc.identifier.spage	107	en
dc.identifier.epage	113	en