Biomass Conversion and Biorefinery

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Thermal analysis of green algae for comparing relationship between particle size and heat evolved

Bongmun Kang, Ho-Sung Yoon

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 279-285

The thermal properties affected by particle size of microbial cell were investigated by the simultaneous thermogravimetry (TG) and differential thermal analysis (DTA). The particle size, which could affect the heat evolved, occurred from the combustion of the microbial cells. The model microorganism used in this study is Nostoc, a genus of flamentous, heterocystous, and cyanobacteria, known as a freshwater...

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Mathematical modeling for the performance and emission parameters of dual-fuel diesel engine using producer gas as secondary fuel

A. E. Dhole, R. B. Yarasu, D. B. Lata, S. S. Baraskar, more

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 257-270

This study presents mathematical modeling of some experimental investigations for different combinations of producer gas and diesel over a wide range of load conditions in dual-fuel operation of a four-cylinder turbocharged diesel engine. Response variables considered in this work were brake thermal efficiency, un-burnt hydrocarbons, carbon monoxide, and oxides of nitrogen. Mathematical models were...

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Overview of the challenges in the production of biodiesel

M. Meira, C. M. Quintella, E. M. O. Ribeiro, H. R. G. Silva, more

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 321-329

This paper presents an overview of the main challenges in the production of biodiesel. Whereas the cost of biodiesel is determined for about 85 % by the cost of the raw material and that the most employed feedstock are oils used also for nutrition, it seems obvious that it is necessary to search for nonedible feedstock with low cost for the production of biodiesel. The choice of feedstock is based...

article

Optimization of ethanol production from spent tea waste by Saccharomyces cerevisiae using statistical experimental designs

Yasin Yücel, Sezer Göycıncık

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 247-255

The aim of this study was to investigate the prospect for the use of spent tea waste (STW), an important municipal waste, as a potential substrate to generate hydrolysates for fuel ethanol production. Acid pretreated STW was used as substrate for ethanol production. The critical variables that affected ethanol fermentation from STW were identified by Plackett–Burman designs and further optimized by...

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Production of xylanase, α-l-arabinofuranosidase, β-xylosidase, and β-glucosidase by Aspergillus awamori using the liquid stream from hot-compressed water treatment of sugarcane bagasse

Raquel Sousa Paredes, Rodrigo Rocha Olivieri de Barros, Hiroyuki Inoue, Shinichi Yano, more

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 299-307

Aiming to decrease the cost of enzymes used to hydrolyze biomass, the liquid stream from the hot-compressed water (HCW) treatment of sugarcane bagasse was used in the growth medium of Aspergillus awamori 2B.361 U2/1. Statistical experimental design was used to determine the HCW¹ temperature and residence time for maximum hemicellulose-derived sugar recovery to the liquid stream. The HCW reactor was...

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A review of amino acids extraction from animal waste biomass and reducing sugars extraction from plant waste biomass by a clean method

Guangyong Zhu, Xian Zhu, Zuobing Xiao, Rujun Zhou, more

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 309-320

In this paper, the current status of amino acid extraction from animal waste biomass and reducing sugar from plant waste biomass by hydrolysis in subcritical and supercritical water was reviewed. The properties of subcritical and supercritical water, reactor systems, reaction kinetics, reaction mechanism, and effects of different factors (temperature, time, and catalyst) on yield were summarized....

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Biodiesel production and characterization from non-edible oil tree species Aleurites trisperma Blanco

K. Rajesh Kumar, Channarayappa, K. Chandrika, K. T. Prasanna, more

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 287-294

Biodiesel production from non-edible oils has become one of the most crucial areas in search for renewable fuels due to rapid depletion of fossil fuels and food versus fuel issues. Aleurites trisperma, a tree species belonging to Euphorbiaceae family yields about 25–30-kg seeds per tree per year during July–August. Seeds contain about 38–40 % oil which is rich in nervonic acid. The oil is highly viscous...

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Evaluation of the physical properties of composite briquette of sawdust and palm kernel shell

Okey Francis Obi

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 271-277

The study investigated the effect of the addition of ground palm kernel on some physical properties of sawdust briquette using cassava starch as the binding agent. Sawdust and ground palm kernel shell (PKS) were mixed in ratios of 100:0 (control), 90:10, 80:20, 70:30, 60:40 and 50:50 and briquettes produced from the biomass blend. The addition of palm kernel shell had a significant effect (p <...

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Production and characterization of bio-oil and bio-char from pyrolysis of potato peel wastes

Shaobo Liang, Yinglei Han, Liqing Wei, Armando G. McDonald

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 237-246

Bio-oil and bio-char were produced from potato peel waste (PPW) and PPW fermentation residue (PPW-FR) using a laboratory-scale auger pyrolyzer at 450 °C. Proximate and ultimate analyses of the feedstock materials PPW and PPW-FR were determined. The bio-oils were fractionated and analyzed by gas chromatography mass spectrometry (GC-MS), high-performance liquid chromatography (HPLC), and electrospray...

article

Gaussian fit to the fluorescence spectra for determination of adulteration to diesel by addition of residual oil

Marilena Meira, Cristina M. Quintella, Erika M. O. Ribeiro, Weidson Leal Silva

Biomass Conversion and Biorefinery > 2015 > 5 > 3 > 295-297

This paper describes a methodology for determining non-transesterified residual cooking oil content in aromatic diesel. The procedure consists in fitting multiple Gaussian to the fluorescence spectra of standards and following construction of a graph using as x-axis the values of the concentrations of the standards in the range of 0 to 45 % and as y-axis the values of the area of the Gaussian centered...

INFONA - science communication portal

Biomass Conversion and Biorefinery

Thermal analysis of green algae for comparing relationship between particle size and heat evolved

Mathematical modeling for the performance and emission parameters of dual-fuel diesel engine using producer gas as secondary fuel

Overview of the challenges in the production of biodiesel

Optimization of ethanol production from spent tea waste by Saccharomyces cerevisiae using statistical experimental designs

Production of xylanase, α-l-arabinofuranosidase, β-xylosidase, and β-glucosidase by Aspergillus awamori using the liquid stream from hot-compressed water treatment of sugarcane bagasse

A review of amino acids extraction from animal waste biomass and reducing sugars extraction from plant waste biomass by a clean method

Biodiesel production and characterization from non-edible oil tree species Aleurites trisperma Blanco

Evaluation of the physical properties of composite briquette of sawdust and palm kernel shell

Production and characterization of bio-oil and bio-char from pyrolysis of potato peel wastes

Gaussian fit to the fluorescence spectra for determination of adulteration to diesel by addition of residual oil

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