نتایج جستجو برای: wood ash

تعداد نتایج: 61890  

Journal: :جنگل و فرآورده های چوب 0
فاطمه جدیدیان دانشجو کارشناسی ارشد محمد طلایی پور دانشیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات سعید مهدوی دانشیار موسسه تحقیقات جنگلها و مراتع کشور- بخش تحقیقات علوم چوب و کاغذ امیر هومن حمصی دانشیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات

the purpose of this study is the utilization of furfural residue for heating energy and activated carbon production. to evaluate the energy production of the residue, bulk density, melting point, and heating value were measured. furthermore, moisture, ash, volatile compounds, fixed carbon, lignin, and elements were determined. ash and volatile content average were measured at 15.4% and 68.9%, r...

2014
Paula Teixeira Helena Lopes Ibrahim Gulyurtlu Nuno Lapa

Three species of biomass origin (straw pellets, olive cake and wood pellets) and two coals from different countries (Coal Polish and Coal Colombian) have been studied to understand the fate of their ash forming matter during the combustion process and to investigate the influence of co-firing biomass with coal. Three different approaches to investigate the ash behaviour were employed: (1) chemi...

2010
Peter Koch

Direct burning is the most familiar way of producing energy from wood. Forest products industries are the main users of wood as fuel on a large scale, because they have much woody debris left over from milling and harvesting. The basic strategy is to reduce leftover wood to walnut-size or smaller particles. This size reduction is usually done by a "hog." Large pieces enter the top of the hog an...

2015
Francisco Grau Hyunwook Choo Jong Wan Hu Jongwon Jung

Biomasses are organic materials that are derived from any living or recently-living structure. Plenty of biomasses are produced nationwide. Biomasses are mostly combusted and usually discarded or disposed of without treatment as biomass ashes, which include wood and sugarcane bagasse ashes. Thus, recycling or treatment of biomass ashes leads to utilizing the natural materials as an economical a...

Journal: :Bulletin of environmental contamination and toxicology 2002
M Lodenius A Soltanpour-Gargari E Tulisalo

2014
Sim-Hee Han Soo-Jeong Shin

*Correspondence: Soo-Jeong Shin, Department of Wood and Paper Science, Laboratory of Plant Biomass Chemistry, Chungbuk National University, Cheongju, Chungbuk 361-763, South Korea e-mail: [email protected] To investigate the solid raw material characteristics of willow (Salix caprea) bark and woody core, this study analyzed overall chemical composition, monosaccharide composition, ash content...

2011
Jason Cutshall Dale Greene Shawn Baker Dana Mitchell

Newly announced North American bioenergy projects will likely increase the demand for woody biomass substantially over the next five to ten years. High harvesting and transportation costs for woody biomass from forests are commonly identified as key constraints to expanding this new industry and meeting expected wood fiber demand. In addition to a cost-competitive feedstock, wood energy facilit...

Journal: :Environmental entomology 2008
Archana Vasanthakumar Jo Handelsman Patrick D Schloss Leah S Bauer Kenneth F Raffa

We characterized gut microbial communities in the emerald ash borer, Agrilus planipennis Fairmaire, an invasive phloem-feeding and wood-boring beetle that has caused extensive mortality to urban and forest ash trees. Analyses included both 16S rRNA gene-based and culture-based approaches. We estimated that the emerald ash borer gut harbors 44, 71, and 49 operational taxonomic units (OTUs(0.03))...

2011
Hui Pan Thomas L. Eberhardt

Fly ash was collected as a byproduct from the processing of southern pine wood chips in a pilot-scale biomass gasifier. General properties of the fly ash were determined to assess its applicability as a soil amendment. Its alkaline pH (9.5) and high concentrations of Ca, K, and Mg suggest that it could be used as both a liming agent and a fertilizer. The concentrations of most heavy metals in a...

1999
K. W. Ragland D. J. Aerts A. J. Baker

A systematic compilation of 21 different property values of wood and bark fue1 was made to facilitate the engineering analysis and modeling of combustion systems. Physical property values vary greatly and properties such as density, porosity, and internal surface area are related to wood species whereas bulk density, particle size, and shape distribution are related to fuel preparation methods....

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید