DESULFURISASI BATUBARA DENGAN METODE FLOTASI MENGGUNAKAN GEL LIDAH BUAYA
DOI:
https://doi.org/10.34151/technoscientia.v12i2.2380Keywords:
Aloe vera, Coal, Desulphurization, FlotationAbstract
Coal is a solid hydrocarbon rock formed from organic deposits, plant remnants in an oxygen-free environment, effects of pressure and heat that lasts very long. Indonesian coal contains very high sulfur pyrite. Very high levels of sulfur in coal cause environmental pollution and damage to combustion tools. The aim of this research is to reduce the sulfur content in coal using the flotation method, using aloe vera gel. Flotation, the process of separating solids that occur due to differences in surface properties and takes place in a system consisting of three phases, namely the gas, liquid and solid phases, with the help of surfactants there will be a separation between the hydrophobic component and the hydrophilic component, where coal which was originally hydrophilic is converted into hydrophobic with the help of surfactants, thus that the sulfur inside can be separated. In this study, aloe vera gel was used as a surfactant which has high saponin levels. The addition of surfactants causes coal components that are less hydrophobic to become more hydrophobic. Based on the research, the more the addition of aloe vera gel in the flotation process, the more sulfur is taken and the optimum amount of aloe vera gel is 300 ml can reduce sulfur by 45.4024%. As for the flow rate, the smaller the flow rate, the longer contact time and the optimum air flow rate is 0.376 L/minute able to absorb 38.7776% sulfur.
References
Aladin dan Mandasini, 2002, Desulfurisasi Batubara Secara Flotasi, Prosiding Seminar Nasional Teknologi Proses Kimia V, UI Jakarta.
American Society for Testing and Materials (ASTM), 1994, Standard test method for microscopical determination of the reflectance of vitrinite in a polished specimen of coal: Annual book of ASTM standards: gaseous fuels; coal and coke, sec. 5, V.5.05, D 2798-91, p. 280-283.
Bayrak, N., O’Donnell, J., A., and Toroglu, I., 2000, Removal of Fine Coals by Column Flotation, paper #918.
Daniela, C. Dan Rusmalin, H., 2018, Potensi Sari Lidah Buaya dan Sari Lemon dalam Mereduksi Formalin pada Tahu, Jurnal SainHealth, Vol. 2 No. 1, hal. 13-20.
Departemen Energi & Sumber Daya Mineral, 1999, Buku Tahunan Pertambangan dan Energi 1999; Paradigma Baru Menyongsong Milenium III, hal. 19-20, 65-72, 105-110, 255-260.
Ehsani, M. R., 2006, “Desulfurization of Tabas Coal Using Chemicalreagents”. Journal of Chemical Engineering Department, Isfahan University of Technology, Isfahan, I.R. Iran.
Fatimah, Herudiyanto, 2017, Kandungan Sulfur dalam Batubara Indonesia, Kelompok Program Penelitian Energi Fosil, Pusat Sumber Daya Geologi.
Gusviputri, A., Meliana PS, N., Aylianawati, Indraswati, N., 2012, Pembuatan Sabun dengan Lidah Buaya (Aloe Vera) sebagai Antiseptik Alami, Teknik Kimia Universitas Katolik Widya Mandala Surabaya.
Kawatra, S. K. dan Eisele, T. C., 1997, Pyrit Removal Mechanisms in Coal Flotation, Journal of Mineral Processing, Vol. 50, hal. 187-201.
Kirk, R. E. dan Othmer, D. F., 1980, Encyclopedia of Chemical Technology 3rd ed, Vol. 10, John Wiley & Sons, Inc. New York, hal. 523-545.
Pratama, A. N., Sriyanti, Guntoro, D., 2013, Pengaruh Kualitas Batubara Sebagai Bahan Bakar Utama, Prosiding Teknik Pertambangan, Universitas Islam Bandung.
Reningtyas, R. dan Mahreni, 2015, Biosurfaktan, Eksergi, Vol. XII, No. 2, Universitas Pembangunan Nasional “Veteran” Yogyakarta.
Sukandarrumidi, 1995, Batubara dan Gambut. Fakultas teknik Universitas Gadjah Mada, Gajah Mada University Press: Yogyakarta.
http://www.ptba.co.id/id/berita/detail/563/getting-to-know-coal, 10 Desember 2019.
