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| 1 | Pelleting characteristics of selected biomass with and without steam explosion pretreatment显示文摘Processing and densification of agricultural biomass into high density and durable pellets are critical to facilitate handling,storage and transportation.Biomass pelleting experiments were designed to conduct single and pilot scale pelleting of non-treated and steam exploded barley,canola,oat and wheat straw grinds acquired from 6.4,3.2,1.6 and 0.8 mm hammer mill screen sizes at 10%moisture content(wb).Single-pelleting was performed by applying compression pressures of 31.6,63.2,94.7,and 138.9 MPa using a close-fit plunger die assembly(die length 135.3 mm and diameter of(6.30±0.5)mm).During pilot scale pelleting,customization of ground straw material was performed by adding steam exploded biomass in increments of 25%to non-treated ground straw for respective biomass at specific grind size.Ground straw samples were conditioned to 17.5%moisture content and 10%flaxseed oil was added to increase the bulk density and flowability of grinds,which resulted in the production of pellets.The quality of pellets from single pelleting experiments was ascertained by measuring their respective density and durability.In addition,the change in pellet density was measured after a storage period of one month to determine its dimensional stability.It was determined that applied pressure and pre-treatment were significant factors affecting the pellet density.Also,bigger grind sizes and lower applied pressures resulted in higher pellet relaxations(lower pellet densities)during storage of pellets.The pilot scale pellet mill produced pellets from ground non-treated straw at hammer mill screen sizes of 0.8 and 1.6 mm and customized samples having 25%steam exploded straw at 0.8 mm.It was observed that the pellet bulk density and particle density are positively correlated.The density and durability of agricultural straw pellets significantly increased with decrease in hammer mill screen size from 1.6 mm to 0.8 mm.Customization of agricultural straw by adding 25%of steam exploded straw by weight is possible,but it did not improve pellet quality.In addition,durability of pellets was negatively correlated to pellet mill throughput and was positively correlated to specific energy consumption. | Phani Adapa Lope Tabil Greg Schoenau Anthony Opoku | 2010 | International Journal of Agricultural and Biological Engineering2010，3，3： | 4 |
| 2 | Optimized design and experiment on ring mold pelletizer for producing biomass fuel pellets显示文摘The forming process of biomass fuel pellets using a ring mold pelletizer was analyzed,optimized,tested and evaluated in this study.The effects of stress amplitude and the stress ratio on the fatigue failure of the ring mold under 4-,3-,and 2-roller designs were investigated.Depending on the calculation of stress amplitude acting on the ring mold,the 4-roller design was chosen for having the smallest value of stress amplitude in this condition.After determining the main design parameters,a three-dimensional model of the ring mold pelletizer was established based on the Pro/Engineer software,and the model was transferred into ADAMS software through Mechanism/Pro which is a dedicated interface software.The ADAMS software was used to run simulations.In order to obtain the highest efficiency and the lowest power consumption,the optimal result was the 4-roller design.Finally,a prototype of the ring mold pelletizer with four rollers was designed and manufactured for biomass fuel pellet production.Corn stover biomass was used as material for experimental manufacturing of fuel pellets.Test and evaluation showed that the optimized pellet durability was 99.79%with ground corn stover particles passing a screen size of 1.97 mm,moisture content of 21.2%w.b.and a material moisture conditioning time of 3.82 h.Pellets formed in the prototype ring mold pelletizer using corn stover had acceptable durability according to European standards. | Gao Wei Lope G Tabil Zhao Rongfei Liu Dejun | 2016 | International Journal of Agricultural and Biological Engineering2016，9，3： | 3 |
| 3 | Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review显示文摘 | Xue Li Lope G. Tabil Satyanarayan Panigrahi | 2007 | Journal of Polymers and the Environment2007，，1： | 1 |
| 4 | Specific energy requirement for compacting corn stover显示文摘 | Sudhagar Mani Lope G. Tabil Shahab Sokhansanj | 2005 | Bioresource Technology2005，，12： | 1 |
| 5 | Specific energy requirement for compacting corn stover显示文摘 | Sudhagar Mani Lope G Tabil Shahab Sokhansanj | 2006 | Bioresource Technology2006，97，： | 1 |
| 6 | Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review显示文摘 | Xue Li Lope G. Tabil Satyanarayan Panigrahi | 2007 | Journal of Polymers and the Environment2007，，1： | 1 |
| 7 | Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review显示文摘 | Xue Li Lope G. Tabil Satyanarayan Panigrahi | 2007 | Journal of Polymers and the Environment2007，，1： | 1 |
| 8 | Evaluation of biocomposite-based supports for immobilized-cell xylitol production compared with a free-cell system显示文摘 | Majid Soleimani Lope Tabil | 2014 | Biochemical Engineering Journal2014，，： | 1 |
| 9 | Compactioncharacteristics of barley,canola,oat and wheat straw显示文摘 | Phani Adapa Lope Tabil Greg Schoenau | 2009 | Biosystems Engineering2009，104，3： | 1 |
| 10 | Com-pression of fractionated sun-cured and dehydrated alfalfachops into cubes:specific energy models显示文摘 | Phani Adapa Greg Schoenau Lope Tabil | 2007 | Biore-source Technology2007，98，1： | 1 |
| 11 | Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review显示文摘 | Xue Li Lope G. Tabil Satyanarayan Panigrahi | 2007 | Journal of Polymers and the Environment2007，，1： | 1 |
| 12 | Grinding performance and physical properties of wheatand barley straws,com stover and switchgrass显示文摘 | Sudhagar Mani Lope G Tabil Shahab Sokhansanj | 2004 | Biomass and Bioenergy2004，27，4： | 1 |
| 13 | Compaction char- acteristics of barley, canola, oat and wheat straw 显示文摘 | Phani Adapa Lope Tabil Greg Schoenau | 2009 | Bio- systems engineering2009，104，： | 1 |
| 14 | Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review显示文摘 | Xue Li Lope G. Tabil Satyanarayan Panigrahi | 2007 | Journal of Polymers and the Environment2007，，1： | 1 |
| 15 | Compaction characteristics of barley,canola,oat and wheat straw显示文摘 | Phani Adapa Lope Tabil Greg Schoenau | 2009 | Biosystems Engineering2009，，6： | 1 |
| 16 | Thermal diffusivity,thermal conductivity,and specific heat of flax fiber-HDPE biocomposites at processing temperatures显示文摘 | Li Xue Tabil Lope G Oguocha Ikechukwuka N | 2008 | Composites Science and Technology2008，68，78： | 1 |
| 17 | Torrefaction of wheat and barley straw after microwave heating显示文摘 | Sangram Kishor Satpathy Lope G Tabil Venkatesh Meda | 2014 | Fuel2014，124，： | 1 |
| 18 | Effects of compressive force,particle size and moisture content on mechanical properties of biomass pellets from grasses显示文摘 | Sudhagar Mani Lope G Tabil Shahab Sokhansanj | 2006 | Biomass and Bioenergy2006，30，7： | 1 |
| 19 | Effect of glycerol on densification of agricultural biomass显示文摘Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agricultural crop residues,namely,wheat,barley,oat and canola straw.Single pelleting tests were conducted to study the effect of biomass type,hammer mill screen size,and crude glycerol content(co-product of biodiesel industry)on pellet quality(density and durability),ash content and gross heat of combustion.Four types of biomass were ground at three different hammer mill screen sizes of 6.4,3.2 and 1.6 mm.Each biomass was mixed with three levels of glycerol of 2.5%,5.0%and 7.5% by weight.Pellets were made at a pre-set load of 4400 N(138.9 MPa)using single-pelleting unit attached to an Instron testing machine.Quality of pellets was determined by measuring pellet density,relaxed density,durability(measured by pellet drop test)and specific energy required to make a pellet.The gross heat of combustion and ash content of pellets were also determined and compared.The highest pellet density(988-1133 kg/m^(3))and relaxed density(992-1142 kg/m^(3))were obtained from biomass ground using a hammer mill screen size of 6.4 mm.A decrease in hammer mill screen size resulted in reduced durability.The highest durability of biomass obtained from hammer mill screen size of 6.4 mm ranged from 97%-100%.Addition of glycerol resulted in lower ash content in majority of pellets.The highest gross heat of combustion was observed in pellets made from wheat straw with 7.5% glycerol content(38.3 MJ/kg).Addition of glycerol resulted in lower pellet densities,lower ash content,no change in durability and higher gross heating values. | Shahram Emami Lope G Tabil Phani Adapa | 2015 | International Journal of Agricultural and Biological Engineering2015，8，1： | 0 |
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