scholarly journals Extruded Solid Biofuels of Rice Straw Plus Oriented Strand Board Residues at Various Proportions

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3468
Author(s):  
Feiyu Tian ◽  
Deliang Xu ◽  
Xinwu Xu

Disposal of vast agricultural residues has been a nerve-wracking social problem in many agriculture-intensive regions. Open-field combustion both squanders those biomass resources and causes severe atmospheric pollution and hazards. In addition, wood industries yield residues such as sanding powders without value application. Production of biofuels out of these biomass provides a multiple beneficial solution. To that end, this work focused on fabrication of biomass fuels using rice straws (Calorific value: 14.7 MJ/Kg) and wood residues from OSB industries (Calorific value: 17.3 MJ/Kg). Biofuel sticks from various proportions of biomass residues were made using an 18.5 KW industrial biomass extruder without adding bonding agents, achieving densities of 1.0–1.6 g/cm3 and comparative calorific values. The biofuel sticks exhibit moisture sensitivity when subjected to a ten-day conditioning. Release of residual stresses that were created during the densification process led to structural destruction of the products under moisture aggression. It’s highlighted that combination of rice straw particles with OSB residues gives sound extrusion process ability and high combustibility. The blend of rice straws and OSB residues are proven practically feasible for making solid biofuels. It’s suggested to promote the waste-to-wealth technological scheme in addressing the energy crisis worldwide, especially in those regions rich in agricultural residues while poor in non-renewable energy sources.

Author(s):  
Wilmer Hernán Ponce ◽  
Ernesto Rosero ◽  
Gisela Latorre ◽  
Irvin Zambrano ◽  
Carolina Zambrano ◽  
...  

Use of pine nut husk (Jatropha curcas L.) and rice straw (Oriza sativa L.) for the production of pellets as biofuel Resumen El uso de los biocombustibles sólidos es una de las alternativas para reemplazar a los combustibles convencionales en la producción de energía eléctrica y calorífica. Este trabajo tiene como objeto el aprovechamiento biomásico residual de la cáscara de piñón (Jatropha curcas L.) y paja de arroz (Oriza sativa L) para la producción de pellets como biocombustible sólido. Se aplicó mediante un diseño experimental (Simplex-lattice) la mezcla en proporciones de 100%-0%, 75%-25%, 50%-50%, 25%- 75%,0%-100% respectivamente. Se efectuaron análisis a la materia prima y producto terminado en porcentaje del contenido de humedad, cenizas, volátil, carbono fijo, adicionalmente el contenido de celulosa y lignina a las materias primas. Para la obtención de pellets, se empleó un equipo de pelletizado marca KL 1500, los pellets se elaboraron con recirculación para eliminar el exceso de humedad para el mejoramiento de textura y dureza. Las mezclas de las biomasas lignocelulósicas, que presentaron un mayor contenido de carbono fijo fueron la M2 (75%-25%) =16,53 ±3,2 % y M5 (0%-100%) =23,51 ±0,72%, en lo referente a material volátil fueron la M1 (100%-0%) =82,37±2,0% y M2 (75%-25%) =81,57±3,47%. El poder calorífico calculado reveló que con una mezcla del 75% de paja de arroz con un 25% de cáscara de piñón se obtiene un poder calorífico de 29,21±0,1 Mj/Kg y la mezcla de 50% de paja de arroz y 50% de cáscara de piñón, genera un valor de 29,01±0,01 Mj/Kg. Concluyendo que las mezclas mencionada puede ser aprovechada para la generación de calor. Palabras clave: Biocombustible sólido; biomasa; pellets; arroz; piñón. Abstract The use of solid biofuels is one of the alternatives to replace conventional fuels in the production of electrical and heat energy. The objective of this work is the residual biomass utilization of the pine nut husk (Jatropha curcas L.) and rice straw (Oriza sativa L) for the production of pellets as solid biofuels. The mixture was applied using an experimental design (Simplex-lattice) in proportions of 100% -0%, 75% -25%, 50% -50%, 25% - 75%, 0% -100% respectively. Analysis of the raw material and finished product were carried out as a percentage of the moisture, ash, volatile, and fixed carbon content, in addition to the cellulose and lignin content of the raw materials. To obtain pellets, a KL 1500 brand pelletizing equipment was used, the pellets were recirculated to remove excess moisture to improve texture and hardness. The mixtures of lignocellulosic biomasses, which had a higher fixed carbon content were M2 (75% -25%) = 16.53 ± 3.2% and M5 (0% -100%) = 23.51 ± 0, 72%, regarding volatile material, were M1 (100% -0%) = 82.37 ± 2.0% and M2 (75% -25%) = 81.57 ± 3.47%. The calculated calorific value revealed that with a mixture of 75% of rice straw with 25% of pinion husk, a calorific value of 29.21 ± 0.1 Mj / Kg is obtained and the mixture of 50% of rice straw and 50% of pinion shell, generates a value of 29.01 ± 0.01 Mj / Kg. Concluding that the mentioned mixtures can be used for heat generation. Keywords:  Solid biofuel; biomass; pellets; rice; pinion.


Author(s):  
Hung Tri Quang Nguyen ◽  
Thong Kien Le ◽  
Ky Minh Nguyen

The paper presents results of rice straw biomass potential and applying efficiency for household scale biochar production in Tien Giang, a typical case study in Go Cong Tay district. The study results showed that the total rice production of Go Cong Tay district was 185.072 tons/year and the rice straw biomass corresponding 233.190,72 tons/year. This rice straw biomass have the high organic ingredients and calorific value, about 44,1% ratio and 4.030 kcal/kg respectively. With weigh 100 kg of input rice straw, the biochar obtained 48,25 ± 2,25 kg (48,25%) after 6 hours burning. The volume of ash and unripe coal ratio were quite low equal to 0,75 ± 0,13 kg and 3,95 ± 1,33 kg, respectively. Optimizational biochar production have short burning process with highly biochar products weight, low ash and unripe coal contents. In addition, the organic ingredients and calorific value from biochar products meet the quality requirements for purposes such as land reclamation, increasing crop yield and towards sustainable agriculture.


Author(s):  
O. M. Salamov ◽  
F. F. Aliyev

The paper discusses the possibility of obtaining liquid and gaseous fuels from different types of biomass (BM) and combustible solid waste (CSW) of various origins. The available world reserves of traditional types of fuel are analyzed and a number of environmental shortcomings that created during their use are indicated. The tables present the data on the conditional calorific value (CCV) of the main traditional and alternative types of solid, liquid and gaseous fuels which compared with CCV of various types of BM and CSW. Possible methods for utilization of BM and CSW are analyzed, as well as the methods for converting them into alternative types of fuel, especially into combustible gases.Reliable information is given on the available oil and gas reserves in Azerbaijan. As a result of the research, it was revealed that the currently available oil reserves of Azerbaijan can completely dry out after 33.5 years, and gas reserves–after 117 years, without taking into account the growth rates of the exported part of these fuels to European countries. In order to fix this situation, first of all it is necessary to use as much as possible alternative and renewable energy sources, especially wind power plants (WPP) and solar photovoltaic energy sources (SFES) in the energy sector of the republic. Azerbaijan has large reserves of solar and wind energy. In addition, all regions of the country have large reserves of BM, and in the big cities, especially in industrial ones, there are CSW from which through pyrolysis and gasification is possible to obtain a high-quality combustible gas mixture, comprising: H2 + CO + CH4, with the least amount of harmful waste. The remains of the reaction of thermochemical decomposition of BM and CSW to combustible gases can also be used as mineral fertilizers in agriculture. The available and projected resources of Azerbaijan for the BM and the CSW are given, as well as their assumed energy intensity in the energy sector of the republic.Given the high energy intensity of the pyrolysis and gasification of the BM and CSW, at the present time for carrying out these reactions, the high-temperature solar installations with limited power are used as energy sources, and further preference is given to the use of WPP and SFES on industrial scale.


Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3398
Author(s):  
Mariusz Jerzy Stolarski ◽  
Paweł Dudziec ◽  
Michał Krzyżaniak ◽  
Ewelina Olba-Zięty

Conventional energy sources often do not fully satisfy the needs of a modern economy, especially given the climate changes associated with them. These issues should be addressed by diversification of energy generation, including the development of renewable energy sources (RES). Solid biomass will play a major part in the process in Poland. The function of rural areas, along with a well-developed agricultural and forest economy sector, will be a key aspect in this as these areas are suitable for solid biomass acquisition in various ways. This study aimed to determine the solid biomass energy potential in the commune of Goworowo to illustrate the potential in the smallest administrative units of Poland. This research determined the environmental and natural conditions in the commune, which helped to identify the crucial usable solid biomass resources. The total energy potential of solid biomass resources in the commune of Goworowo amounted to 97,672 GJ y−1. The highest potential was accumulated in straw surplus (37,288 GJ y−1) and the lowest was in wood from roadside maintenance (113 GJ y−1). This study showed that rural areas could soon play a significant role in obtaining solid biomass, and individual communes could become spaces for the diversification of energy feedstock.


Author(s):  
Nguyen Hong Nam ◽  
Le Gia Thanh Truc ◽  
Khuong Duy Anh ◽  
Laurent Van De Steene

Agricultural and forest residues are potential sources of renewable energy in various countries. However, the difference in characteristics of biomass resources presents challenges for energy conversion processes which often require feedstocks that are physically and chemically consistent. This study presented a complete and comprehensive database of characteristics of a wide range of agricultural and forest residues. Moisture, bulk density, calorific value, proximate and elemental compositions, as well as cellulose, hemicellulose, and lignin compositions of a wide range of biomass residues were analyzed. The major impacts of the variability in biomass compositions to biochemical and thermochemical processes were also discussed.


2021 ◽  
pp. 207-220
Author(s):  
Aleh I. Rodzkin ◽  
Evgenija V. Chernenok ◽  
Vasilij M. Sivko ◽  
Viatcheslav A. Rakovitch

The goal of investigation was assessment of environmental impact and economic efficiency of composite briquette production on the base of peat and renewable biomass. Biomass for composite briquettes was obtained from straw (cereal crops and rape) and wood residues (sawdust, chips) Experimental composite briquette were produced from the mixture of peat and biomass in relation to – 25 : 75, 50 : 50, 75 : 25. The technological cards of biomass feedstock production for 6 variants were developed. Technological cards were used for calculation of emission into the atmosphere during life cycle of biomass production and prime cost of biomass. The lowest volume of gas (SO2, NOx, CO2) and particulate matter (PM) emission was installed for biomass production from the sawdust. The highest volume of emission was installed for production of biomass from the straw with pressing it in standard bale. The volume of CO2 emission for the sawdust production was 6 kg per ton of biomass and for the standard bale of straw was 19 kg per ton of biomass. Prime cost of sawdust production (lowest) was 11 belarusian rubles per ton of biomass, for the wood chips was 19 rubles per ton and for the straw varied from 26 to 33 rubles per ton in depend of technology. It was installed that growth of biomass rate in composite briquette had a good influence on number of basic fuel characteristics (contents of ash, sulfur and moisture). The variation of calorific value of briquette was not significant in depend of biomass contents. In accordance with assessment of all characteristics the better briquettes was obtained from the peat and sawdust.


2016 ◽  
Vol 20 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Magdalena Kachel-Jakubowska ◽  
Artur Kraszkiewicz ◽  
Marta Krajewska

AbstractCurrently, many countries are establishing goals for substituting fossil fuels with biomass. This global trade in solid biofuels, which is to some extent already taking place, will have a major impact not only on other commodity markets like vegetable oils or animal fodder but also on the global land use change and on environmental impacts. It demonstrates the strong but complex link between biofuels production and the global food market, it unveils policy measures as the main drivers for production and use of biofuels and it analyzes various sustainability indicators and certification schemes for biofuels with respect to minimizing the adverse effects of biofuels. Biomass is seen as a very promising option for fulfilling the environmental goals defined by the European Commission as well as various national governments. We have measured selected physicochemical properties of several the most common oilseeds and the residue materials in the form of cakes, moisture, fat, heat of combustion, the calorific value and ash content. The results showed that the considered plants and waste derived therefrom can be a good energy source. Examples include sunflower oilcake, sesame, pumpkin and rapeseed cake, for which the calorific value amounted to respectively: 28.17; 27.77; 26.42 and 21.69 MJ·kg−1.


BioResources ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 7935-7952
Author(s):  
Dimitrios Tsalagkas ◽  
Zoltán Börcsök ◽  
Zoltán Pásztory ◽  
Vladimir Gryc ◽  
Levente Csóka ◽  
...  

The suitabilities of major agricultural residues were assessed as papermaking feedstocks. All the examined agricultural residues were assumed as potential candidates for substituting hardwood fibers in mixed pulp blends from a fiber morphological perspective. Wheat, barley, rice, rapeseed, maize, sunflower, sugarcane bagasse, coconut husk, and two genotypes of miscanthus grass underwent identical maceration. The fiber length, fiber width, cell wall thickness, and lumen diameter were measured to calculate the slenderness ratio, flexibility coefficient, and Runkel ratio. The average fiber length ranged from 0.50 mm ± 0.32 mm (MG-S-02-V) to 1.15 mm mm ± 0.58 mm (sugarcane bagasse). The fiber width ranged from 10.77 μm ± 3.28 μm (rice straw) to 22.99 mm ± 5.20 mm (sunflower stalk). The lumen diameter ranged from 4.52 μm ± 2.52 μm (rice straw) to 13.23 μm ± 4.87 μm (sunflower stalk). The cell wall thickness ranged from 3.02 μm ± 0.95 μm (rice straw) to 4.80 μm ± 1.48 μm (sunflower stalk). The slenderness ratio, flexibility coefficient, and Runkel ratio values ranged between 28.08 to 58.11, 37.97 to 60.8, and 0.62 to 1.68, respectively. Wheat, maize, rapeseed, sugarcane bagasse, and coconut husk were found to be appropriate residue sources for papermaking feedstocks.


BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 816-824
Author(s):  
Jonathan Sergio Chávez-Rosales ◽  
Luis Fernando Pintor-Ibarra ◽  
Nicolás González-Ortega ◽  
Rocio Orihuela-Equihua ◽  
Faustino Ruiz-Aquino ◽  
...  

The basic chemical composition and calorific value of 19 samples of pine sawdust from different forest industries located in five states of the Mexican Republic (Chihuahua, Michoacán, Durango, Oaxaca, and Nuevo León) were determined. The results obtained ranged as follows: total extractives (6.1% to 23.4%), holocellulose (60.1% to 70.4%), lignin (20.5% to 25.8%), ash (0.27% to 0.95%), pH (4.1 to 5.3), and calorific value (20.1 MJ/kg to 21.0 MJ/kg). Except for the ash content, significant statistical differences were found according to the origin of the pine sawdust samples. Based on the results obtained, the sawdust biomass has the potential to obtain densified solid biofuels.


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