| dc.identifier.citation | Gale, Thomas K., Bartholomew, Calvin H., Fletcher,Thomas H., 1995, Decreases in The Swellings and Porosity of Bituminus Coals during Devolatilization at high Heating Rate, Combustion and Flame 100 : 94-100 Ndaji, Francis E., Butterfield, Ian M., Thomas K Mark., 1997, Changes in The Macromolecular Structure of Coals With Pyrolisis Temperature, Fuel 1987, vol . 76 number 2, pp. 169-177 Qiu,Jianrong., Li, Fan., Zeng,Hancai., Yao, Bin., Ma, Yuyi., 2000, Determination of Optimum Blending Ratio During Coal Blends Combustion, Combust. Scie. And Tech., vol 157, pp. 167-184 Rahardjo, B. S., 1999. Kajian Pembuatan Kokas Briket Batubara Ombilin dengan Proses Karbonasi Tak Langsung pada Suhu Rendah untuk Peleburan Besi Skala Industri Kecil, Jurnal Sains dan Teknologi Indonesia. Deputi Bidang Teknologi Pengembangan Sumber Daya Alam, BPPT, Jakarta. | en_US |
| dc.description.abstract | The objective of this research is to examine the possibility of liquid smoke that are produce by
carbonation process of coal, rice husk, coconut tree powder and mahogany tree powder as
adhesives of local coke briquettes. The process of the research is begins with the preparing of
raw materials such as coal, rice husk, coconut tree powder and mahogany tree powder. Every
material are placed in a carbonation furnace with capacity of 10 kg, after that will be
carbonation to a temperature of 300°C and held for 30 minutes with a heating rate of 10°C/min.
The smoke that occur in a carbonation process is captured in a cool place in order to make a
condensation process. The smoke that produced by condensation process is become a liquid
smoke or tar. The next process, tar is as adhesive that is used in the process of making coke
briquettes. Briquettes is tested by compressive strength, the length due changes of the pressure,
impact resistance and water absorption. The results of this research show that the tar form
mahogany tree powder have pressure resistance and long of pressure greater than others,
however has a low impact pressure. | en_US |
