SIFAT FISIK DAN KIMIA WOOD PELLET DARI LIMBAH INDUSTRI PERKAYUAN SEBAGAI SUMBER ENERGI ALTERNATIF

2014 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Effendi Arsad

Carakteristic physical and chemistry of Wood pellet from Industrial Disposal of Wood as Sources  Energy Alternatif The research to gaved for physical and chemistry of Wood pellet from Industrial. Processing approximately 12%, sawdust dried to moisture content of  sieved that is size of 15 mesh, 25 mesh and 35 mesh. Heating temperature were 60 0C and 110 0C. Moisture content of flawer wood pellet 4,46% - 9,95%, acacia wood pellet were 4.38% - 7.52% and tarap wood pellet were  4.60% - 9.98%. Density of flawer  wood pellet  were 0.51 - 0.78, acacia wood pellet were 0.61 - 0.78 and tarap wood pellet were   0.56 - 0.71, ash content of wood  flawer  from 0.87 - 2.04%, acacia 0.54 - 0.94% and ash content of  tarap wood 1.71 - 2.05%. Calorific value of wood pellets flawers wood 3921,12 - 4150,19 cal/g, acacia wood 4022,29 - 4254,91 cal/g and tarap wood  3920,13 - 4125,28 cal/g. The higher temperature of the heating effect on reality the reduction of water and the weight of ash wood pellets  while it was increasing calorific value.Keywords: waste wood, flawers wood, acacia wood, tarap wood, wood pellet

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9766
Author(s):  
Víctor Daniel Núñez-Retana ◽  
Rigoberto Rosales-Serna ◽  
José Ángel Prieto-Ruíz ◽  
Christian Wehenkel ◽  
Artemio Carrillo-Parra

Background Biomass usage for energy purposes has emerged in response to global energy demands and environmental problems. The large amounts of by-products generated during logging are rarely utilized. In addition, some species (e.g., Quercus spp.) are considered less valuable and are left in the cutting areas. Production of pellets from this alternative source of biomass may be possible for power generation. Although the pellets may be of lower quality than other types of wood pellets, because of their physical and technological properties, the addition of different raw materials may improve the characteristics of the oak pellets. Methods Sawdust from the oak species Quercus sideroxyla, Q. rugosa, Q. laeta and Q. conzattii was mixed with sawdust from the pine Pinus durangensis in different ratios of oak to pine (100:0, 80:20, 60:40, 40:60 and 20:80). Physical and mechanical properties of the pellets were determined, and calorific value tests were carried out. For each variable, Kolmogorov–Smirnov normality and Kruskal–Wallis tests were performed and Pearson’s correlation coefficients were determined (considering a significance level of p < 0.05). Results The moisture content and fixed carbon content differed significantly (p < 0.05) between the groups of pellets (i.e., pellets made with different sawdust mixtures). The moisture content of all pellets was less than 10%. However, volatile matter and ash content did not differ significantly between groups (p ≥ 0.05). The ash content was less than 0.7% in all mixtures. The addition of P. durangensis sawdust to the mixtures improved the bulk density of the pellets by 18%. Significant differences (p < 0.05) in particle density were observed between species, mixtures and for the species × mixture interaction. The particle density was highest in the 80:20 and 60:40 mixtures, with values ranging from 1,245 to 1,349 kg m−3. Bulk density and particle density of the pellets were positively correlated with the amount of P. durangensis sawdust included. The mechanical hardness and impact resistance index (IRI) differed significantly (p < 0.05) between groups. The addition of pine sawdust decreased the mechanical hardness of the pellets, up to 24%. The IRI was highest (138) in the Q. sideroxyla pellets (100:0). The mechanical hardness and IRI of the pellets were negatively correlated with the amount of P. durangensis sawdust added. The bulk density of the pellets was negatively correlated with mechanical hardness and IRI. The calorific value of mixtures and the species × mixture interaction differed significantly between groups. Finally, the mean calorific value was highest (19.8 MJ kg−1) in the 20:80 mixture. The calorific value was positively related to the addition of P. durangensis sawdust.


Author(s):  
Yusraida Khairani Dalimunthe ◽  
Sugiatmo Kasmungin ◽  
Listiana Satiawati ◽  
Thariq Madani ◽  
Teuku Ananda Rizky

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%.


Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5126
Author(s):  
Piyarath Saosee ◽  
Boonrod Sajjakulnukit ◽  
Shabbir H. Gheewala

Thailand is one of the upcoming wood pellet exporters in the Southeast Asia region. Wood pellet production has been gradually increasing in Thailand; however, the recent trend is more rapid. Therefore, the objective of this study is to analyze the feedstock security for wood pellet production in Thailand. The important issue of feedstock security analysis relates to availability and diversity of feedstock (Shannon index) to meet the increased demand for the wood pellets in the future. The results present that the feedstock supply (from waste wood and fast-growing tree wood) in Thailand is 5.32 million tonnes of wood pellets per year. However, increasing 25% of wood pellet export and 50% of wood pellet domestic use causes a deficit in fast-growing tree wood because para-rubber waste wood is not distributed uniformly in all regions of the country. The present diversity of feedstock supply is quite low (Shannon index 0.17). Increasing the fast-growing tree plantation area in the wastelands could help increase diversity. Recommendations on policy from this study focus on encouragement for the increase in domestic use of wood pellets, cultivation of fast-growing trees in wasteland and optimized logistics management.


2019 ◽  
Vol 35 (4) ◽  
pp. 475-479 ◽  
Author(s):  
Jun Sian Lee ◽  
Shahab Sokhansanj ◽  
C. Jim Lim ◽  
Anthony Lau ◽  
Tony Bi

Abstract.The published data on equilibrium moisture content vs. equilibrium relative humidity (EMC-ERH) for wood pellet do not cover the range of temperature and relative humidity to which a pellet is exposed to during its storage and handling. A few published EMC-ERH relations covering a wider range of temperatures and relative humidity are available for solid wood (lumber) and wood chips. The question is whether the data for solid wood is applicable to wood pellets. For this research, we examined the sorption isotherms of wood pellets and solid wood. The analysis shows that EMC for solid wood is higher than the EMC for wood pellet for a relative humidity larger than 30%. The slope of EMC-ERH isotherm for solid wood in the range of 30%-70% is slightly steeper than the slope of isotherm for wood pellet, indicating the pellet’s EMC is less sensitive to ERH when compared to EMC-ERH for solid wood. Keywords: EMC, ERH, Densified biomass, Equilibrium moisture content, Equilibrium relative humidity, Solid wood, Wood pellets.


2017 ◽  
Vol 2 (1) ◽  
pp. 43 ◽  
Author(s):  
Lilih Sulistyaningkarti ◽  
Budi Utami

This study aimed to (1) make charcoal briquettes from corncobs organic waste; (2) determine the right type of adhesive to make a corncobs charcoal briquette to produce good quality briquettes; (3) determine the appropriate percentage of adhesive to produce corncobs briquettes to produce good quality briquettes; and (4) know the best characteristics of corncobs charcoal briquettes which include moisture content, volatile content, ash content, carbon content and caloric value. The sample used was corncob obtained from a corn farmer in Pasekan Village, Wonogiri regency. This research used experimental method in laboratory with several stages, namely: (1) preparation of materials; (2) carbonization; (3) crushing and sifting of charcoal (4) mixing charcoal with adhesive and water; (5) briquetting; (6) briquette drying; And (7) analysis of briquette quality. This adhesive types used in this research were tapioca flour and wheat flour and the percentage of adhesive material were 5%, 10% and 15% from total weight of charcoal powder. The result of the research were: (1) charcoal briquettes as alternative energy source can be made from biomass waste (corncobs organic waste); (2) charcoal briquettes from organic corncobs wastes using tapioca flour adhesives have better quality than using wheat flour adhesives; (3) the both charcoal briquettes using 5% of tapioca flour adhesive and 5% wheat flour adhesives have better quality than 10% and 15% in terms of moisture content, volatile content, ash content, carbon content and calorific value; and (4) the best characteristics obtained are for the charcoal briquettes using 5% of tapioca flour adhesive, which have water content of 3,665%; volatile matter amounting of 11.005%; ash content of 4.825%; fixed carbon content of 80.515%; and high heat value of 5661,071%.


2020 ◽  
Vol 66 (1) ◽  
pp. 3-11 ◽  
Author(s):  
Vahur Kurvits ◽  
Katri Ots ◽  
Ahto Kangur ◽  
Henn Korjus ◽  
Peeter Muiste

AbstractThe properties of biomass-based fuel and combustion tests showed that logging residues are promising renewable energy sources. The data used in this study were collected from four clear-felling areas in Järvselja Training and Experimental Forest Centre, Southeast Estonia in 2013–2014. Logging was carried out by harvesters in Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies [L.] Karst.), silver birch (Betula pendula Roth.) and black alder (Alnus glutinosa L. Gaertn.) dominated stands with a small admixture of other tree species according to the cut-to-length method and logging residues were placed in heaps. The aim of this research is to assess different characteristics of logging residues (quantity, moisture content, energetic potential, ash content and amount) in clear-felling areas. The highest load of slash was measured on the birch dominated study site, where the dry weight of the logging residues was 29 t ha−1. Only the branch fraction moisture content on the black alder dominated site (35.4%) was clearly different from respective values on other sites (21.6–25.4%). The highest calorific value of the residues was assessed with the residues from the birch dominated site, where in moist sample it was 365 GJ ha−1 and in dry matter 585 GJ ha−1. The heating value of the fresh residues is highest in coniferous trees. The highest ash content in branch segments was registered for the black alder dominated site. Järvselja data indicate higher quality in conifer dominated sites, yet a higher load of logging residues in broadleaf dominated stands.


2015 ◽  
Vol 4 (2) ◽  
pp. 46-52
Author(s):  
Erwin Junary ◽  
Julham Prasetya Pane ◽  
Netti Herlina

The availability of the petroleum fuels that deprived from fossil is depleted with the increase of human population. The challenge for this fuel shortage crisis can certainly be anticipated with the manufacture of fuels deprived from renewable biomass. The study of this research is to create a biocharcoal deprived from sugar palm (Arenga pinnata) with the optimum carbonization time and temperature in order to obtain a biocharcoal with the highest calorific value. Biocharcoal is a charcoal created from biomass. The study of the determination of the optimum conditions for the manufacture of biocharcoal from sugar palm (Arenga pinnata) has a temperature variable of 300, 350, 400, 450 and 500 0C and time variable of 60, 90 and 120 minutes. Sugar palm was first cut into a small pieces and dried up under the sun and then put into a furnace to carbonate it according to the predetermined variables. The product from furnace was then put inside a desicator to cool it off for 30 minutes and then analyze it with moisture content test, ash content test, volatile matter content test, carbon content test and calorific value test. The best result was obtained at the temperature of 350 0C and 120 minutes of carbonization with the calorific value of 8611,2581 cal/gr, moisture content of %, ash content of %, volatile matter content of % and carbon content of %. Based of the calorific value obtained, the result shows that sugar palm (Arenga pinnata) biocharcoal could be utilize as an renewable alternative source fuels


2021 ◽  
Vol 6 (3) ◽  
Author(s):  
I Made Indradjaja M. Brunner ◽  
Arief Norhidayat ◽  
Satria M. Brunner

Solid Waste Processing Technology at the Source (TOSS) is an alternative method in processing organic and biomass waste on a communal scale. The processing of organic and biomass waste material is carried out in three stages of the process: biodrying which utilizes the aerobic activity of microorganisms; chopping which is intended to refine the material, and pelletization to compact the material into biomass pellets. The biodrying process in bamboo boxes is able to reduce the water content in organic and biomass waste within 4-5 days. Sorting of non-organic materials can be done at an early stage before or after the biodrying process. Sorting is required before chopping and pelletizing process to avoid unnecessary machine break down. The biomass pellet which is the final product has a diameter of about 10 mm with a length between 10-40 mm, a calorific value between 3000-4000 kcal/kg, and a moisture content of up to 15%. Compared to coal, biomass pellets tend to have higher volatile and ash content, while lower ash and sulfur content.


2017 ◽  
Vol 18 (2) ◽  
Author(s):  
Widodo Hari Prabowo ◽  
Muhammad Viki Lutfiana ◽  
Rosid Rosid ◽  
Muhammad Burhanuddin Ubaidillah

ABSTRAK Energi yang berasal dari biomassa misalnya limbah baglog, yang selama ini dibuang atau tidak dimanfaatkan, merupakan limbah yang dapat dikonfersi menjadi sumber energi alternatif pengganti bahan bakar fosil. Limbah baglog  jamur dimanfaatkan sebagai bahan bakar dengan cara, mengubah limbah tersebut menjadi biobriket. Tujuan penelitian dilakukan untuk pengkajian laju pembakaran, nilai kalor, kadar abu, kadar air, kadar zat yang menguap, kadar karbon dan drop test pada biobriket. Metode yang digunakan dalam pembuatan menggunakan perbandingan A (1:1:1) dengan komposisi tepung kanji 250 gram limbah baglog 250 gram dan air 250 ml, perbandingan B (1:2:2) dengan komposisi tepung kanji 250 gram limbah baglog 500 gram dan air 500 ml, perbandingan C (1:3:3) dengan komposisi tepung kanji 250 gram  limbah baglog 1000 gram dan air 1000 ml. Pembutan yang pertama dengan penghancuran limbah baglog dan pengeringan, pencampuran tepung, limbah baglog dan air, pengepresan biobriket kemudian dikeringkan. Hasil penelitian memperoleh nilai kalor, kadar air, kadar karbon dan kadar zat yang menguap terdapat pada biobriket sampel A (1:1:1) sebesar 4065,69 kal/g, 5%, 15,4%, dan 71,4 %  untuk kadar abu terbaik terdapat pada sampel B (1:2:2) sebesar 4,8%. Kata kunci: Limbah baglog, biobriket, bahan bakar fosil, jamur tiram  ABSTRACT Energy derived from biomass such as baglog waste that has been disposed or not utilized, is a waste that can be converted into alternative energy sources of fossil fuel. Wastes baglog mushrooms are used as fuel by the way, turning the waste into bio briquette. The aim of this research is to test the combustion rate, calorific value, ash content, moisture content, volatile substance content, carbon content and drop test on bio briquett. The method used in the preparation uses A (1: 1: 1) comparison with starchy flour composition 250 grams of baglog 250 grams and 250 ml water, B ratio (1: 2: 2) with  starchy flour composition 250 grams baglog 500 grams and water 500 ml, C ratio (1: 3: 3) with starch flour composition 250 grams of baglog waste 1000 grams and water 1000 ml. Making the first with the destruction of baglog waste and drying, mixing flour, baglog waste and water, briquette pressing then dried. The results of the research were obtained values of caloric, water content, carbon content and the content of volatile substances in A (1: 1: 1) biobriket of 4065.69 cal / g, 5%, 15.4%, and 71.4% The best ash content was found in sample B (1: 2: 2) of 4.8%. The results obtained of calorific value, moisture content, carbon content and volatile substances were found in A (1: 1: 1) sample biobriket of 4065, 69 cal / g, 5%, 15.4%, and 71.4% for the best ash content were found in sample B (1: 2: 2) of 4.8%. Keywords : Baglog waste, bio briquette, fossil fuel, oyster mushroom


2019 ◽  
Vol 13 (1) ◽  
pp. 57
Author(s):  
Syarifhidayahtullah Syarif ◽  
Rochim Bakti Cahyono ◽  
Muslikhin Hidayat

A B S T R A C TThe conversion of cocoa shell waste into char briquettes has been carried out through various methods. However, the product characteristics do not meet the SNI briquettes requirements. Therefore, it is necessary to improve process engineering by mixing cocoa peel waste with red fruit pulp to get char briquettes in order to improve quality of briquette products. This research was carried out through pyrolysis process with temperthwatures up to 500 oC and held for 4 hours. The research objective was to produce char briquettes from cacao pod shell waste with the addition of red fruit pulp and its characteristic test. The study was designed with 2 variables, namely independent variables in the form of char raw material powder that passed 50 mesh sieve, weight ratio of cocoa shell char powder and red fruit pulp char powder (100:0, 70:30, 50:50, 30:70, and 0%:100%), pressure (100 kg/cm2), 10% starch adhesive from raw materials, and briquette diameter of 40 mm. Whereas the dependent variables are the moisture content (%), volatile content (%), ash content (%), fixed carbon content (%), and calorific value (cal/g). The results showed that the process of pyrolysis of char briquettes waste cocoa shell with red fruit pulp can increase its calorific value. The best characteristics of briquette were obtained from mixed briquettes (composition of 30%:70%) with moisture content of 5.63%, volatile content of 18.65%, ash content of 9.45%, fixed carbon content of 66.27%, and calorific value of 6422 cal/g.A B S T R A KPemanfaatan limbah kulit buah kakao menjadi briket arang telah banyak dilakukan melalui berbagai metode tetapi belum memenuhi persyaratan SNI briket arang. Oleh karena itu, perlu diupayakan untuk mendapatkan briket arang yang memenuhi persyaratan SNI. Salah satunya dengan cara mencampurkan limbah kulit kakao dengan ampas buah merah karena ampas buah merah memiliki nilai kalor yang cukup tinggi. Penelitian ini dilakukan melalui proses pirolisis dengan suhu sampai dengan 500 oC  dan ditahan selama 4 jam. Tujuan penelitian untuk memproduksi briket arang dari limbah kulit buah kakao dengan penambahan ampas buah merah serta uji karakteristiknya. Penelitian dirancang dengan 2 variabel, yaitu variabel bebas (independent variable) berupa ukuran serbuk bahan baku arang yang lolos saringan  50 mesh, rasio massa campuran serbuk arang kulit kakao dengan serbuk arang ampas buah merah (100:0, 70:30, 50:50, 30:70, dan 0%:100%), tekanan pengempaan (100 kg/cm2), perekat kanji 10% dari bahan baku, dan diameter briket 40 mm. Variabel terikat (dependent variable) yang diukur yaitu kadar air (%), kadar zat mudah menguap (%), kadar abu (%), kadar karbon terikat (%), dan nilai kalor (kal/g). Hasil penelitian menunjukkan bahwa, dengan melalui proses pirolisis briket arang limbah kulit kakao dengan ampas buah merah dapat meningkatkan nilai kalor-nya. Karakteristik briket terbaik diperoleh dari briket komposisi campuran (30%:70%) dengan kadar air 5,63 %, kadar zat mudah menguap 18,65 %, kadar abu 9,45 %, kadar karbon terikat 66,27 %, dan nilai kalor 6422 kal/g.


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