scholarly journals Valorization of Insulation Cellulose Waste as Solid Biomass Fuel

2021 ◽  
Vol 11 (17) ◽  
pp. 8223
Author(s):  
Sandra Espuelas ◽  
Sara Marcelino-Sádaba ◽  
Jesus Maria del Castillo ◽  
Benat Garcia ◽  
Andres Seco
Keyword(s):  
Mass Loss Rate ◽  
Cellulose Fiber ◽  
Volatile Matter ◽  
Matter Content ◽  
Green Energy ◽  
Biomass Fuel ◽  
Chemical Compositions ◽  
Durability Test ◽  
Stable Combustion ◽  
Good Ability

This paper investigates the ability of insulation cellulose fiber powder (CFP) to be pelletized for its valorization as biomass fuel. CFP is a waste originating from insulation cellulose manufacturing that lacks any method of valorization because of its boron salts content. A sugar byproduct and lignosulfonate (LS) were considered as binders for the pellet manufacturing process. Physical tests were carried out to characterize the pellets’ performance. Chemical and combustion tests were considered to state the pellets’ potential as a green energy source. Raw CFP showed good ability in its pelletization and durability in the range of 15–30% of moisture content. The pellet’s density decreased as water content increased. Binders increased the pellet’s length before and after the durability test. Binders also increased the CFP pellet’s water absorption, demonstrating a potential decrease in durability against environmental factors. Binders also decreased the lower heating value. Ultimate analysis showed a slight Nitrogen increase in both binder combinations that could potentially raise the pollutant NOx combustion emissions. All the combinations showed adequate combustion characteristics, but binders increased ash production. Additives decreased the CFP volatile matter content and increased the fixed carbon, which could facilitate a more stable combustion. DTA curves showed a mass loss rate decrease in the volatile stage for the binder combinations, which also could be considered as an indicator of a more stable combustion. The ashes’ chemical compositions when analyzed by XPS showed boron contents oscillating between 10.03% and 16.42%, demonstrating the possibility of recovering them from the combustion ashes.

scholarly journals Green energy technology from buriti (Mauritia flexuosa L. f.) for Brazilian agro-extractive communities

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Munique Gonçalves Guimarães ◽  
Rafael Benjamin Werneburg Evaristo ◽  
Augusto César de Mendonça Brasil ◽  
Grace Ferreira Ghesti
Keyword(s):  
Lignin Content ◽  
Fixed Bed ◽  
Thermal Conversion ◽  
Volatile Matter ◽  
Matter Content ◽  
Green Energy ◽  
Fixed Bed Reactor ◽  
Gasification Process ◽  
Mauritia Flexuosa ◽  
Immediate Analysis

AbstractThe present work analyzed the energy generation potential of Buriti (Mauritia flexuosa L. f.) by thermochemical reactions. The experimental part of the study performed immediate analyses, elemental analyses, lignocellulosic analysis, thermogravimetric analysis, calorific values, and syn gas concentrations measurements of the gasification of Buriti in a fixed-bed reactor. Additionally, numerical simulations estimated the syn gas concentrations of the gasification reactions of Buriti. The immediate analysis showed that Buriti has the highest ash content (4.66%) and highest volatile matter content (85%) compared to other Brazilian biomass analyzed, but the higher heating value was only 18.28 MJ.kg−1. The elemental analysis revealed that the oxygen to carbon ratio was 0.51 while hydrogen to carbon ratio was 1.74, indicating a good thermal conversion efficiency. The Lignocellulosic analysis of Buriti resulted in a high content of holocellulose (69.64%), a lignin content of 28.21% and extractives content of 7.52%. The thermogravimetry of the Buriti indicated that the highest mass loss (51.92%) occurred in a temperature range between 150 °C and 370 °C. Lastly, the experimental gasification study in a fixed-bed updraft gasifier resulted in syn gas concentrations of 14.4% of CO, 11.5% of CO2 and 17.5% of H2 while the numerical simulation results confirmed an optimal equivalence ratio of 1.7 to maximize CO and H2 concentrations. Therefore, based on the results presented by the present work, the gasification process is adequate to transform Buriti wastes into energy resources. Graphic abstract

scholarly journals Comparative characteristics of the petrographic composition and quality of coal series С12 and С13 of the Prydniporovia Block

2021 ◽  
Vol 30 (1) ◽  
pp. 145-152
Author(s):  
Vyacheslav S. Savchuk ◽  
Vasyl F. Prykhodchenko ◽  
Dmytro V. Prykhodchenko ◽  
Valeriia V. Tykhonenko
Keyword(s):  
Volatile Matter ◽  
Matter Content ◽  
Coal Seams ◽  
Combustion Heat ◽  
Petrographic Composition ◽  
Genetic Features ◽  
History Of ◽  
Coal Composition ◽  
Technological Indices

Taking into consideration the whole history of geological development of the Western Donbas, data on composition and grade of С12 series coal involved information about the geotectonic development of the Basin. To satisfy the objectives, a system of research methods, covering petrographic, computational, statistical, chronological, comparative and other methods, has been applied. In the process of identification of the petrographic composition and grade of series С12coal on the territory of the Prydniprovia Block, and determination of lateral regularities of their change as well as change in stratigraphic section of the Lower Carboniferous, data of petrographic as well as chemical and technological indices of the coal seam c1 were generalized along with data of all seams of С13 series. The activities helped define genetic features of series С12coal as well as stratigraphic and lateral regularities of changes in the coal composition. The differences in the petrographic composition as well as in the chemical and technological characteristics of series С12 and С13 are indicative of dissimilar conditions of formation of their peat depositions. It has been determined that compared with С13 series coal, the coal of С12 series contains more humidity and fewer mineral impurities. It is characterized by higher values of sulfur content, volatile-matter content, and combustion heat. The ultimate composition of coal seams of С12series is characterized by smaller values of carbon and oxygen contents as well as greater hydrogen content. The conclusions on common features and differences in the petrographic composition as well as chemical and technological features of coal seams of С12and С13 series, and regularities of their changes over the area of the seam occurrence was assessed.

scholarly journals Analysis of the Quality of Mixed Coconut Shell Waste Briquettes with Various Biomass Additives as Alternative Fuels

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Yusraida Khairani Dalimunthe ◽  
Sugiatmo Kasmungin ◽  
Listiana Satiawati ◽  
Thariq Madani ◽  
Teuku Ananda Rizky
Keyword(s):  
Moisture Content ◽  
Calorific Value ◽  
Volatile Matter ◽  
Matter Content ◽  
Ash Content ◽  
Coconut Shell ◽  
Bamboo Charcoal ◽  
A Value ◽  
Shell Waste

The purpose of this study was to see the best quality of briquettes from the main ingredient of coconut shell waste<br />with various biomass additives to see the calorific value, moisture content, ash content, and volatile matter<br />content of the biomass mixture. Furthermore, further research will be carried out specifically to see the quality of<br />briquettes from a mixture of coconut shell waste and sawdust. The method used in this research is to conduct a<br />literature study of various literature related to briquettes from coconut shell waste mixed with various additives<br />specifically and then look at the best quality briquettes produced from these various pieces of literature. As for<br />what is determined as the control variable of this study is coconut shell waste and as an independent variable,<br />namely coffee skin waste, rice husks, water hyacinth, Bintaro fruit, segon wood sawdust, coconut husk, durian<br />skin, bamboo charcoal, areca nut skin, and leather waste. sago with a certain composition. Furthermore, this<br />paper also describes the stages of making briquettes from coconut shell waste and sawdust for further testing of<br />the calorific value, moisture content, ash content, volatile matter content on a laboratory scale for further<br />research. From various literatures, it was found that the highest calorific value was obtained from a mixture of<br />coconut shell waste and bamboo charcoal with a value of 7110.7288 cal / gr and the lowest calorific value was<br />obtained from a mixture of coconut shell waste and sago shell waste with a value of 114 cal / gr, then for the value<br />The highest water content was obtained from a mixture of coconut shell waste and rice husk with a value of<br />37.70% and the lowest water content value was obtained from a mixture of coconut shell waste 3.80%, then for the<br />highest ash content value was obtained from a mixture of coconut shell waste and coffee skin with a value of<br />20.862% and for the lowest ash content value obtained from a mixture of coconut shell and Bintaro fruit waste,<br />namely 2%, and for the highest volatile matter content value obtained from a mixture of coconut shell and coconut<br />husk waste with a value of 33.45% and for the value of volatile matter levels The lowest was obtained from a<br />mixture of coconut shell waste and sago skin waste with a value of 33 , 45%.

Charcoal Volatile Matter Content Influences Plant Growth and Soil Nitrogen Transformations

2010 ◽  
Vol 74 (4) ◽  
pp. 1259-1270 ◽  
Author(s):  
Jonathan L. Deenik ◽  
Tai McClellan ◽  
Goro Uehara ◽  
Michael J. Antal ◽  
Sonia Campbell
Keyword(s):  
Plant Growth ◽  
Soil Nitrogen ◽  
Volatile Matter ◽  
Matter Content ◽  
Nitrogen Transformations ◽  
Volatile Matter Content ◽  
Soil Nitrogen Transformations
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