| dc.contributor |
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| dc.contributor |
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| dc.creator |
agustiana, lely |
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| dc.date |
2016-03-15 |
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| dc.date.accessioned |
2019-09-12T01:25:08Z |
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| dc.date.available |
2019-09-12T01:25:08Z |
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| dc.identifier |
http://karyailmiah.unisba.ac.id/index.php/pertambangan/article/view/3292 |
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| dc.identifier.uri |
http://hdl.handle.net/123456789/22349 |
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| dc.description |
Coal Jambi (PT. CTSP) belongs to the low rank coal (lignite), which has total moisture of 47.05% with a calorific value of 3829 kcal / kg. Drying technology can lower water levels in the low rank coal that will improve the quality of coal. Coal drying can be done at low temperature low pressure (oven) and at high temperature high pressure (autoclave).
In the drying process with low temperature and low pressure, it is obtained an inherent moisture content in equilibrium after being placed in the open air for approximately 700 hours which are 15.88%, 12.00%, 12.70% and 6.53% for coal dried at 200⁰C, 150⁰C, 110⁰C and 75⁰C. While the inherent moisture content of raw coal is at 15.14%. A high temperature drying and high pressure (autoclave) can reduce the total water content of 47.05% to 3%. The inherent moisture content of less than 5% moisture is stable after its contact with the open air for 2000 hours. Based on the laboratorium experiments, it shows that the method of drying with low temperature and low pressure to the heating temperature 150⁰C has a inherent moisture content approaching inherent moisture content of coal measured in water conditions dried basis (adb) is 12:00%, whereas with the method of the high temperature and high pressure, the coal produces moist moisture under humid water levels on water conditions dried basis (adb) which is about 3%. Based on the research data, the method using high temperature high pressure is better because it produces a stable dry coal with a moisture content of relatively small water about 3%, while the low-temperature low-pressure method to produce coal which has a moisture content above 10% moisture. |
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| dc.description |
Batubara Jambi (PT. CTSP) termasuk ke dalam batubara peringkat rendah (lignit), yang memiliki total moisture sebesar 47,05% dengan nilai kalor 3829 kkal/kg. Dengan teknologi pengeringan dapat menurunkan kadar air dalam batubara peringkat rendah sehingga akan meningkatkan kualitas batubara. Pengeringan batubara dapat dilakukan pada suhu rendah tekanan rendah (oven) dan pada suhu tinggi tekanan tinggi (autoclave). Pada proses pengeringan dengan suhu rendah dan tekanan rendah diperoleh kadar air lembab dalam kesetimbangan setelah ditempatkan di udara terbuka selama kurang lebih 700 jam adalah 15.88%, 12.00%, 12.70% dan 6.53% untuk batubara yang dikeringkan pada 200⁰C, 150⁰C, 110⁰C dan 75⁰C. Sedangkan kadar air lembab batubara raw sebesar 15.14%. Pada pengeringan suhu tinggi dan tekanan tinggi (autoclave) dapat menurunkan kadar air total dari 47,05% menjadi 3%. Kadar air lembab stabil dibawah 5% setelah kontak dengan udara terbuka selama 2000 jam. Dari hasil percobaan bahwa pada metoda pengeringan dengan suhu rendah dan tekanan rendah dengan suhu pemanasan 150⁰C memiliki kadar air lembab yang mendekati kadar air lembab batubara yang diukur dalam kondisi air dried basis (adb) yaitu 12.00%, sedangkan dengan metoda pada suhu tinggi dan tekanan tinggi menghasilkan kadar air lembab di bawah kadar air lembab pada kondisi air dried basis (adb) yaitu sekitar 3%. Berdasarkan data hasil penelitian maka metoda dengan menggunakan suhu tinggi tekanan tinggi lebih baik karena menghasilkan batubara kering yang stabil dengan kadar air lembab yang relatif kecil sekitar 3%, sedangkan metoda suhu rendah tekanan rendah menghasilkan batubara yang memiliki kadar air lembab di atas 10 %. |
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| dc.format |
application/pdf |
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| dc.language |
ind |
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| dc.publisher |
Universitas Islam Bandung |
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| dc.relation |
http://karyailmiah.unisba.ac.id/index.php/pertambangan/article/view/3292/pdf |
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| dc.relation |
http://karyailmiah.unisba.ac.id/index.php/pertambangan/article/downloadSuppFile/3292/466 |
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| dc.relation |
http://karyailmiah.unisba.ac.id/index.php/pertambangan/article/downloadSuppFile/3292/467 |
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| dc.source |
Prosiding Teknik Pertambangan; Vol 2, No 1, Prosiding Teknik Pertambangan (Februari, 2016); 339-348 |
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| dc.source |
Prosiding Teknik Pertambangan; Vol 2, No 1, Prosiding Teknik Pertambangan (Februari, 2016); 339-348 |
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| dc.source |
2460-6499 |
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| dc.subject |
Proceedings of Mining Engineering |
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| dc.subject |
performance, quality comparison, coal drying of low temperature low pressure, coal drying of high temperature with high pressure, Jambi |
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| dc.subject |
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| dc.subject |
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| dc.title |
Quality Comparison Between Coal Drying Of Low Temperature Low Pressure With High Pressure High Temperature Coal Jambi |
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| dc.title |
Perbandingan Kualitas Batubara Hasil Pengeringan antara Suhu Rendah Tekanan Rendah dengan Suhu Tinggi Tekanan Tinggi Batubara Jambi |
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| dc.type |
info:eu-repo/semantics/article |
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| dc.type |
info:eu-repo/semantics/publishedVersion |
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| dc.type |
Peer-reviewed Article |
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| dc.type |
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