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Iwan Rijwan
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Journal : Indonesian Mining Journal

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ANALYSIS OF UBC UTILIZATION IN THE EXISTING COAL POWER STATION CASE STUDY : SURALAYA POWER STATION Gandhi Kurnia Hudaya; BUKIN DAULAY; Iwan Rijwan
Indonesian Mining Journal Vol 11 No 3 (2008): INDONESIAN MINING JOURNAL Vol. 11 No. 3 October 2008
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol11.No3.2008.581

Abstract

Coal resources in Indonesia mostly (65 %) are categorized as LRC (Low Rank Coal). Currently, the Indonesian Government is encouraging to use LRC as the main source of energy in the national energy mixed policy, including the acceleration program of constructing 10,000 MW Power Plant. With the advanced technologies, such as Upgraded Brown Coal (UBC) process, LRC can be used optimally, particularly for the power plant. Suralaya Generation Business Unit (SGBU), which is the largest coal power plant in Indonesia, recently has to use lignite coal or low rank coal because the price of medium and high rank coal is too expensive. This paper conducted to identify the problems faced by SGBU in using lignite coal and to evaluate the benefit of UBC process if used in SGBU to be blended with lignite. From the evaluation, it can be concluded that UBC process will give benefit to SGBU by reducing ash pollution and give economic benefit of Rp 507 billion per year maximum.
THE AVAILABILITY OF INDONESIAN OIL PRODUCT THAT IS USED IN THE UPGRADED BROWN COAL PROCESS Iwan Rijwan; BUKIN DAULAY; Gandhi Kurnia Hudaya
Indonesian Mining Journal Vol 11 No 2 (2008): INDONESIAN MINING JOURNAL Vol. 11 No. 2 June 2008
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol11.No2.2008.593

Abstract

Indonesian coal has a potential to be a major future primary energy source due to its large resource, easy and low cost of exploitation, good quality and supported by appropriate infrastructure. However, more than 65% of the coal resources are categorized as LRC and this type of coal needs to be upgraded before it is used and transported for a long distance. One of the upgrading processes is UBC. Kerosene, LSWR and spray oils are used for UBC process as heating media, material for closing coal pores and oil for briquette machine, respectively. The specification and price of kerosene in Indonesia which is used for both household and industries are controlled by PT PERTAMINA. However in the case of LSWR, PT PERTAMINA does not control the quality and the price. Therefore in the market there are different of qualities and prices of LSWR. All oil refineries belong to PT PERTAMINA produces LSWR and kerosene. They guarantee the con- tinuity of oil supply to customer. They recommend to utilize a heavy aromatic for kerosene substitu- tion and asphalt and decant oil to substitute LSWR. The oil will be transported to the UBC plant from the nearest oil refinery using lorries or tankers transportation agency that is recommended by PT PERTAMINA.
Co-Authors BUKIN DAULAY Gandhi Kurnia Hudaya