ANALISIS KUALITAS PEMBAKARAN BRIKET BATUBARA DENGAN METODE KARBONISASI BERDASARKAN PARAMETER KUALITAS BRIKET, UKURAN PARTIKEL DAN KOMPOSISI

2018 ◽  
Vol 4 (01) ◽  
Author(s):  
Didi Kasi Setiawan ◽  
Agus Triantoro ◽  
Annisa Annisa

Briket batubara merupakan bahan bakar padat yang mempunyai kelayakan teknis dan ketersedian batubara cukup banyak di Indonesia. Permasalahan yang sering di jumpai dalam penggunaan briket batubara sebagai bahan bakar energi adalah lamanya penyalaan, aroma yang tidak sedap pada saat dibakar, dan daya rekat briket yang tidak bagus sehingga briket mudah pecah. Untuk mengatasi masalah tersebut perlu mengetahui pengaruh komposisi dan ukuran partikel briket batubara terhadap kualitas pembakaran serta kualitas briket batubara. Dalam hal ini, diperlukan analisis laboratorium yang hasilnya dapat digunakan untuk mengklasifikasikan tingkatan kualitas briket batubara.Metode analisis yang digunakan untuk kualitas briket yaitu American Society for Testing and Materials (ASTM) meliputi pengujian moisture, ash content, volatile matter, calorific value, fixed carbon dan karbonisasi untuk peningkatan kualitas, meliputi moisture, volatile matter serta calorific value. Berdasarkan hasil pengujian yang telah dilakukan dapat disimpulkan bahwa proses karbonisasi batubara dapat menurunkan kandungan kualitas batubara inherent moisture adb (17,1 % - 6,38%) dan meningkatkan nilai calorific value cal/g adb (5462 - 6261), waktu nyala api (0:23:14 – 0:47:06), waktu nyala bara (0:44:56 – 1:23:10) serta durasi pembakaran (1:08:10 – 2:10:16). Kata-kata kunci: Briket, Batubara, Karbonisasi, Kualitas Batubara.

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 2249-2263
Author(s):  
María Alejandra Ramírez-Ramírez ◽  
Artemio Carrillo-Parra ◽  
Faustino Ruíz-Aquino ◽  
Luis Fernando Pintor-Ibarra ◽  
Nicolás González-Ortega ◽  
...  

This research characterized briquettes made with Pinus spp. sawdust without the use of additives. For this purpose, 19 samples of sawdust from different wood industries located in five states of the Mexican Republic were used. The densification process was carried out in a vertical hydraulic piston laboratory briquette machine. The briquettes were made with 40 g of sawdust, at 50 °C, 20 kPa and pressing for 5 min. The results obtained varied as follows: moisture content (4.1% to 7.2%), density (813.9 to 1,014.4 kg/m3), volumetric expansion (7.4% to 37.3%), compressive strength (4.9 to 40.8 N/mm), impact resistance index (46.7% to 200%), ash (0.1% to 1.1%), volatile matter (82.9% to 90.7%), fixed carbon (8.9% to 16.4%), and calorific value (20.5 to 22.8 MJ/kg). The density of the briquettes was within the “acceptable” classification (800 to 1,200 kg/m3). It was observed that, the higher the density, the lower the volumetric expansion, the higher the compressive strength, and the higher the impact resistance index. According to the ash content, the briquettes could achieve international quality. Due to high volatile matter values, rapid combustion of the briquettes with little generation of toxic smoke would be expected. Fixed carbon and calorific value results were acceptable.


Konversi ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 16
Author(s):  
Yuli Ristianingsih ◽  
Ayuning Ulfa ◽  
Rachmi Syafitri K.S

Abstrak-Tandan Kosong Kelapa Sawit merupakan limbah padat hasil produksi Crude Palm Oil (CPO). Setiap 1(satu) ton tandan buah segar dihasilkan 23% limbah padat. Limbah padat ini dapat di konversi menjadi bahan bakar pengganti minyak yaitu briket. Briket bioarang adalah bahan bakar padat yang dapat digunakan sebagai bahan bakar alternatif pengganti bahan bakar yang berasal dari fosil seperti minyak dan gas. Penelitian ini bertujuan untuk mengetahui pengaruh suhu pirolisis terhadap yield bioarang yang dihasilkan dan mengetahui pengaruh konsentrasi perekat kanji (5% w/w, 10% w/w, 15% w/w) terhadap karakteristik briket hasil penelitian (kadar air, volatile matter, kadar abu, fixed carbon, nilai kalor dan laju pembakaran). Penelitian dilakukan dengan metode pirolisis yaitu proses pembakaran bahan baku dalam reaktor pirolisis dengan menggunakan suhu yang tinggi dan tanpa atau dengan sedikit oksigen. Pirolisis dilakukan selama 2,5 jam dengan variasi suhu yaitu 350°C, 400°C, 450°C dan 500°C. Arang yang dihasilkan dicampur dengan perekat sesuai variasi dan dicetak menjadi briket. Briket kemudian dianalisa kadar air, kadar abu, kadar karbon, kadar zat terbang, nilai kalor dan laju pembakaran. Briket dengan yield tertinggi terdapat pada suhu 350°C sebesar 51,53% dan yield terendah pada suhu 500°C sebesar 26,03%. Briket hasil penelitian ini telah memenuhi standar mutu briket sebagai bahan bakar dilihat dari nilai kalor. Komposisi optimal antara perekat kanji dan arang TKKS hasil pirolisis yaitu pada 5%:95% yang menghasilkan nilai kalor terbesar yaitu 6748,15kal/g.  Kata kunci : Briket Bioarang, Pirolisis, Tandan Kosong Kelapa Sawit                Abstract-Palm Oil Empty Fruit Bunches are solid waste from Crude Palm Oil (CPO industry). For 1 ton of fresh fruit bunches produced 23% of solid waste. This solid waste can be converted into alternative energy that called briquettes. Briquettes are solid fuel that can be used as an alternative fuel replacement for fossil fuels such as oil and gas. This study aims to determine the effect of temperature on the yield generated briquettes and the effect of stach adhesive concentration (5, 10 and 15% wt) to briquettes characteristics (moisture content, volatile matter, ash content, fixed carbon, calorific value and the rate of combustion). In this reseacrh, two kilograms of palm oil empty fruit bunches was burned using pyrolisis reactor at different temperatur (350, 400, 450 and 5000C) for 2.5 hour. Charcoal produced was mixed with an adhesive in accordance variations and molded into briquettes. Briquettes then analyzed the water content, ash content, carbon content, volatile matter content, heating value and rate of combustion. The maximum yield of briquettes which was obtained in this research is 51.53% at temperature 3500C and the lowest yield at temperature of 500 ° C by 26.03%. Briquettes results of this study have met the quality standards of fuel briquettes as seen from the heating value. Optimal adhesive composition between starch and charcoal TKKS is 5%: 95% that generates highest calorific value about 6748.15kal/ g. Keywords: Briquette Bioarang, Pyrolysis, oil palm empty bunches


FLORESTA ◽  
2020 ◽  
Vol 50 (4) ◽  
pp. 1707
Author(s):  
Helio Tonini ◽  
Marina Moura Morales ◽  
Flavio Jesus Wruck ◽  
Ronaldo Maran Deliberali

The aim of the present study was to assess the growth and energetic properties of genetic material of eucalyptus grown in several integrated crop-livestock system spatial arrangements in Barra-do-Garças City (MT). The genetic material of 76-month old Eucalyptus spp from eight spatial arrangements were assessed according to the following properties: diameter, height and volume growth, mortality rate, dry matter yield, sapwood to heartwood ratio, form factor, bark volume, basic density, superior calorific value, ash content, volatile matter, fixed carbon and trunk energy. Data analysis was performed by adjusting growth function, test for model identity and parameters equality and ANOVA tests to Scott-Knott’s mean clustering test. Eucalyptus grandis x E. urophylla clones from recorded the highest energy efficiency due to their high yield volume, which was decisive to determine estimated energy available per tree and cropland area. Growth, stem shape and basic density varied among, and within, the same genetic materials, depending on their respective spatial arrangement. However, solid biomass properties (high calorific value, ash content, fixed carbon and volatile matter) remained stable.


2017 ◽  
Vol 1 (1) ◽  
pp. 113
Author(s):  
Lisa Mariati ◽  
Yusbarina Yusbarina

AbstractHuman needs on fossil fuels is increasing, but the source is limited.  Thus, a renewable alternative source is needed.  One of them is Biomass.  Biomass fuel can be in the form of bio-briquette. Bio-briquette utilization as fuel is based on the carbon content contained in Biomass such as peat and bagasse.  This research aimed at knowing bio-briquette quality as fuel and learning source at senior high school.  Bio-briquette prepared with variation of peat and bagasse mass composition were 40: 0, 30: 10, 20: 20, 10: 30, 0: 40 (g: g).  Bio-briquette was made by using 20 g adhesive kanji.  Bio-briquette quality tested was done by testing the water content, ash content, volatile matter, fixed carbon, calorific value, and duration of flame.  Bio-briquette the best quality is the mass variation of G 10g: 30g AT with water content of 3.93%, ash content of 6.33%, volatile matter of 46.60%, fixed carbon of 43.14%, calorific  value of 5986 cal / g , duration of flame 210 minutes and the mass variation 0g G: 40g AT with water content of 2.33%, ash content of 3.83%, volatile matter of 49.47%, calorific value of 6198 cal / g, duration of flame 250 minutes. Preparing bio-briquette of peat and bagasse as learning source on chemistry material and its implementation was on the category of good (93.33%). Keywords: Bio-briquette, Peat, Bagasse, Quality test


2020 ◽  
Vol 10 (2) ◽  
pp. 17-22
Author(s):  
Alpian ◽  
Raynold Panjaitan ◽  
Adi Jaya ◽  
Yanciluk ◽  
Wahyu Supriyati ◽  
...  

Charcoal briquettes can be an alternative energy and can be produced from Gerunggang and Tumih types of wood. These two types of wood are commonly found in Kalampangan Village as pioneer plants on burned peatlands. The research objective was to determine the chemical properties of charcoal briquettes produced from biomass waste from land processing without burning with several compositions of Gerunggang wood and Tumih wood. The chemical properties of charcoal briquettes refer to the Indonesian National Standard (SNI 01-6235-2000) and Standard Permen ESDM No. 047 of 2006. The results showed that all composition treatments in the ash content test, fixed carbon content and calorific value met the standards, while the test for volatile content in all treatment compositions did not meet the Indonesian National Standard (SNI 01-6235-2000). The composition of the most potential chemical properties and following the two standards used is the composition of 100% Tumih with ash content of 7.67%, volatile matter content of 27.23%, fixed carbon of 55.00%, and heating value of 5902.18 cal/g.


2015 ◽  
Vol 10 (1) ◽  
pp. 343-349 ◽  
Author(s):  
Dobariya Umesh ◽  
P Sarsavadiya ◽  
Krishna Vaja ◽  
Khardiwar Mahadeo

The study was undertaken to investigate the properties of cotton stalk fuel from the agricultural residues. The whole cotton stalk plant is converted into shredded material with the help of cotton stalk shredder. The capacity of cotton stalk shredder machine is 218 kg/h. The proximate analysis of the shredded cotton stalk in terms of bulk density 34.92 kg / m3 moisture content 13.63 %, volatile matter 74.52 %, ash content (4.95 %, fixed carbon 20.53 % and calorific value of cotton stalk biomass (3827 cal/g) respectively. were showed that agricultural residues are the most potential and their quantitative availability, Since the aim by using shredded cotton stalk as feed stock for energy conversion process of the developed gasifier.


Author(s):  
Rapheal Ige ◽  
Elinge Ogala ◽  
Cosmos Moki ◽  
Abdulrahman Habeeb

The selection or choice of agro-waste briquettes for domestic and industrial cottage applications depends on the fuel properties. In this study, the briquette was produced by carbonizing the rice stalk followed by crushing and sieving, the binder was prepared by dissolving the starch in hot water, then mixed with the sieved carbonized rice stalk and then the briquette was produced using the briquetting machine. Proximate analyses, viability, characteristics and combustion were determined to know the average composition of their constituents. From the results obtained it was observed that ash content, moisture content, after glow and ignition propagation decrease as the binder ratio increase while fixed carbon content, volatile matter, calorific value, density and compressive strength increase. The results of this work indicate that briquettes produced using high concentration of the binder would make good biomass fuels. However, it has a high moisture content of 25.00%, high ash content of 23.00%, moderate volatile matter of 44.80%, low fixed carbon content of 32.20%, moderate calorific value of 13.86 MJ/Kg and high density of 0.643g/cm3. The results obtained for all the parameters showed that rice stalks briquettes produced with high concentration of the binder (starch) had a better performance based on their combustion profile.


INFO-TEKNIK ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 75
Author(s):  
Muhammad Nizar Ramadhan ◽  
Andy Nugraha

The solution to reduce the use of fossil fuels is by utilizing renewable energy such as solar power, wind power, and hydropower, as well as the utilization of other alternative energy derived from biomass. One of alternative energy from biomass that is very potential is briquettes. Tapuk Village, Limpasu Subdistrict, Hulu Sungai Tengah Regency is one of the producers of Alaban wood charcoal, with grade D charcoal in the form of charcoal flakes and is often regarded as waste. This study aims to determine the physical properties of alaban wood charcoal waste briquettes which include water content, ash content, volatile matter content, fixed carbon content, and calorific value, as well as the potential utilization of alaban wood charcoal waste briquettes. so that residents can use Tapuk Village, Limpasu District, Hulu Sungai Tengah Regency as an alternative fuel to substitute kerosene and LPG. The results showed the physical properties of alaban wood charcoal waste briquettes for 3.66 % water content, 3.15 % ash content, 14.31 % volatile matter content, 78.88% fixed carbon content, 6.259.33 cal / gr calorific value. The use of alaban wood charcoal waste briquettes is able to produce consumption costs efficiency of 60% better than the use of LPG and 70% better than the use of kerosene.


2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Rahmat Hafizi ◽  
Uyu Saismana ◽  
Annisa Annisa

Dalam pemanfaatannya, batubara harus diketahui terlebih dahulu kualitasnya dengan cara melakukan pengamilan sample dan analisis laboratorium.dari kegiatan terseut di peroleh parameter kualitas batuara seperti parameter moisture berupa total moisture (TM) dan inherent moisture (IM),  total sulphur (TS), ash content, volatile matter (VM), dan  fixed carbon (FC) serta calorific value (CV)  dan. Permasalahan yang timbul dari penelitian yang dilakuakn berupa adanya perbedaan kualitas batubara pada stockpile dengan kualitas batubara yang di barge, karena itu perlu dilakukan analisa perubahan parameter yang terjadi akibat aktivitas tersebut sehingga dimungkinkan untuk memprediksi perubahan yanga terjadi.Metode yang digunakan dalam penelitian ini adalah dengan melakukan analisa parameter kualitas batubara pada stockpile dan membandingkan dengan hasil analisa parameter kualitas batubara di stockpiledengan kualitas batubara di barge berdasarkan hasil analisa kualitas di laboraturium, serta menganalisa pengaruh perubahan antara parameter kualitas batubara yang satu dengan yang lainnya pada kedua lokasi tersebut. Dilakukan secara lansung dilapangan untuk melihat metode pengambilan sampel dan preparasi sampel sebelum dianalisa parameternya selama bulan Mei Tahun 2017.Adapun perbedaan parameter kualitas batubara di stockpile dan barge memiliki rata-rata perbedaan TM 0.88%, IM 17.64%, ASH 0.10%, TS 0.01%, CV adb 1183.3 cal/gr dan CV ar 42.13 cal/gr. Dengan standart rejection nilai TM (ar) 39%, ASH (adb) 4%, TS (adb) 0,11% dan CV (ar) 3900 Kcal/Kg. Dimana perubahan parameter akibat aktivitas barging pada TM mengalami kenaikan 2.40%, IM sendiri terjadi penurunan 19.79%, ASH kecendrungan turunnya 0.39%, sedangkan TS mengalami kenaikan 0.02% dan CV cendrung alami penurunan 176 Kcal/Kg. Pengaruh perubahan parameter kualitas batubara yang satu dengan yang lainnya dapat disimpulkan parameter TM, ASH dan TS tidak merupakan fator yang pengaruhi nilai CV sedangkan parameter IM lebih berpengaruh dimana turunnya nilai IM sebanding dengan kenaikan nilai CV. Untuk prediksi nilai kualitas batubara setelah kegiatan barging dapat diketahui dengan persamaan linear TM (y=-0.0011x+36.75), IM (y=0.0502x+11.493), ASH (y=-0.046x+3.9983), TS (y=-0.0003x+0.1087) dan CV (y=-1.81ln(x)+3954). Kata-kata Kunci : Tanah Grogot, Inherent Moisture, Proximate, Stockpile, Barge


2018 ◽  
Vol 10 (1) ◽  
pp. 1-10
Author(s):  
Ratri Yuli Lestari, M.Env. ◽  
Dwi Harsono ◽  
Nazarni Rahmi

Altitude is one of the factors that affect the growth of bamboo. Bamboo species used in this study was Bambusa vulgaris and Arundinaria gigantea. The objectives of this study are to investigate the effect of altitude to the characteristics of bamboo charcoal harvested from three different altitudes (Lumpangi, Banjarbaru/Martapura, Marabahan). Parameters tested in this study were moisture content, ash content, volatile matter, fixed carbon and calorific value. The result showed that altitute significantly affected the characteristics of bamboo charcoal. Bamboo charcoal from Banjarbaru/Martapura had the best characteristics than the charcoal produced from other locations. The moisture content, ash content, volatile matter, fixed carbon and calorific value of B. vulgaris were 0.77 %; 3.49 %; 8.63 %; 87.11 % and 7,331.05 kal/g. The moisture content, ash content, volatile matter, fixed carbon and calorific value of A. gigantea were 0.19 %; 12.46 %; 4.48 %; 87.11 % and 6,640.69 kal/g, respectively.


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