Characteristic of low rank coal from Warukin Formation, South Kalimantan and their implication for coal liquefaction

Nursanto, Edy; Ilcham, Adi

doi:10.1088/1755-1315/212/1/012027

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Additionally, the Atomic Absorption Spectroscopy (AAS) test further scrutinizes the metal content in the sludge oil, underlining any potential contaminants or elements of concern. Proximate analysis of solid fuels is used to determine the characteristics and quality concerning the use of the coal, namely to determine the relative amount of moisture content, volatile matter (VM), ash, and tethered carbon (FC) contained [18][19][20]. This proximate analysis is the most basic test in determining the quality of solid fuels [20][21][22].…”

Section: Substancesmentioning

confidence: 99%

Evaluation and Management of B3 Waste Sludge via the Sludge Oil Recovery (SOR) Program at PT. X Plaju

Nurdiasna,

Septiariva,

Suryawan

et al. 2023

J. Tek. Kim. Ling

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With the ever-increasing need for waste management solutions, PT. X Plaju is one of the entities that contribute to B3 waste production, a waste type characterized by its explosive, flammable, reactive, corrosive, and toxic properties. This research centers on the evaluation and management of B3 waste sludge, particularly at PT. X Plaju. The institution implements two licensed B3 waste control programs: the Sludge Oil Recovery (SOR) and used lubricant utilization programs. The SOR program, which focuses on recovering components from oil deposits or sludge, operates under the recovery principle. This study showcases the importance of the oil component in the oil sludge, emphasizing that it must constitute more than 20% of the total volume to be deemed suitable for refinery production. Our findings highlighted a water content of 28.32% within the waste oil sludge. Additionally, the ultimate analysis showcased carbon, hydrogen, and nitrogen compositions of 85.99%, 13.42%, and 0.21%, respectively, while the density was measured at 0.85 gr/cc. This research offers insights into the waste management practices of PT. X Plaju, emphasizing the potential of the SOR program in managing B3 waste effectively.

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Section: Substancesmentioning

confidence: 99%

Evaluation and Management of B3 Waste Sludge via the Sludge Oil Recovery (SOR) Program at PT. X Plaju

Nurdiasna,

Septiariva,

Suryawan

et al. 2023

J. Tek. Kim. Ling

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“…The chemical properties of coal have effects on the energy content and environmental benchmarking, which are often used as the basis of sale contacts. Those are low heating value (LHV) as of energy losses used to vaporize water, volatile matter (VM), inherent moisture (IM), sulfur (S), chlorine (Cl), and an ash content of coal and fuel ratio (FR) (Nursanto and Ilcham, 2018).…”

Section: Introductionmentioning

confidence: 99%

Analysis of potential energy and environmental impact from coal gasification through simulation of plasma gasification process of Indonesian low-rank coal

Sesotyo

Nur

Muraza

2021

IMJ

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Indonesia's coal reserve is abundant with its lower price and widely distributed than oil and natural gas. However, the coal emits high carbon dioxide gas (CO2) and sulfur compounds (H2S, SOx) to the environment during utilization. Plasma gasification can overcome those lacks using the external electric energy through a plasma torch. The chemical properties of coal have impacts on the energy content and environmental benchmarking. Using steam as a gasifying agent should be adequate to produce H2 and CO syngas. A research has been carried out to analyze and understand the benefit of using different gasifying agent for maximizing the H2 production and minimizing the environmental impact. Pure Steam (PS) gasifying agent to coal ratio of 0.4 has shown 43.76% H2 composition in syngas and cold gasification efficiency (CGE) with 37.71%. The PS to coal ratio of 0.2 has a significant carbon conversion efficiency of 4.75% and the PS to coal ratio of 0.6 has a gross energy potential of 86.5 kW. Using such the PS is significantly better than the mixture of steam oxygen (SO) as the gasifying agent since it needs to have a greater SO flow rate to have the SO to coal ratio of 1.00.

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Low-rank coal upgrading to optimize its utilization as fuel

Fatia Umar,

Zulfahmi,

Madiutomo

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Indonesia’s coal resources and reserves are mostly categorized as low-rank coal, lignite and sub-bituminous coals. Most of them have a high content of moisture, a low calorific value, and a high tendency to low-temperature oxidation and self-combustion, making them difficult to transport over long distances. To increase the utilization of the low-rank coals, a drying treatment was carried out by heating the coal at a temperature and pressure of 160°C and 3.5 Bar respectively for about 15 minutes. Two low-rank coal samples, from South Sumatra (A coal) and South Kalimantan (B coal) were used in this research. The result indicates that the degree of dewatering of A coal is 89.00% while B coal is 95.5%. B Coal has a higher inherent moisture content which generally has more capillary water which is relatively easier to remove. The higher the degree of dewatering the higher the calorific value degree of improvement. The calorific value of the A coal increased by 27.16% and the B coal increased by 40.65%. The combustion characteristic obtained from the thermogravimetry-differential thermal analysis shows that the A and B upgraded coals have a lower tendency to spontaneous combustion than that of the raw coals.

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Characteristic of low rank coal from Warukin Formation, South Kalimantan and their implication for coal liquefaction

Cited by 3 publications

References 11 publications

Evaluation and Management of B3 Waste Sludge via the Sludge Oil Recovery (SOR) Program at PT. X Plaju

Evaluation and Management of B3 Waste Sludge via the Sludge Oil Recovery (SOR) Program at PT. X Plaju

Analysis of potential energy and environmental impact from coal gasification through simulation of plasma gasification process of Indonesian low-rank coal

Low-rank coal upgrading to optimize its utilization as fuel

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