Demonstration of Upgraded Brown Coal (UBC Process
The process, called the upgraded brown coal (UBC) process, is based on the principle of "tempura (Japanese battered deep-fried food)" and efficiently removes Kobe Steel has developed a process for producing Upgraded Brown Coal (UBC®) by applying a unique slurry dewatering technology. A study has been conducted Mine-mouth Power Generation System Based on
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Increasing the quality of low-rank coal through the upgrading brown
The Upgrading Brown Coal (UBC) process is carried out regarding the obligation to increase the added value of low-quality mining products as a substitute or The objectives of this study were the evaluation of the effect of MgO addition to coal on the reduction of ash deposition during upgraded brown coal (UBC) Effect of MgO addition to upgraded brown coal on ash
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CHARACTERIZATION OF UPGRADED BROWN COAL (UBC)
One of these processes is the Upgraded Brown Coal (UBC) process developed by Kobe Steel Ltd. In this study, an Indonesian LRC was processed using the Mathematical models for sorption isotherms were investigated as for UBC (Upgraded Brown Coal) and its feedstock coals, dried and not dried. Studies on classic Mathematical model of water sorption isotherms of UBC
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Briquetting of UBC by double roll press part I: The
UBC (Upgraded Brown Coal) process is a lignite upgrading process [1] developed by Kobe Steel, Ltd. It consists of the following sub-processes: making slurry Indonesian coal was upgraded by upgraded brown coal (UBC), hot water drying (HWD), and steam drying (SD) processes to study the combustion characteristics The Effect of Upgrading Processes on Combustion Characteristics of
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Ash deposition behavior of upgraded brown coal in pulverized coal
The UBC stands for Upgraded Brown Coal. Akiyama et al. [4] also evaluated the combustion characteristics of UBC. However, the ash melting points of The water sorption kinetics of UBC (Upgraded Brown Coal) and its feedstock coals, including raw and dried coals, were investigated. A pseudo 1st order model was suitable for the desorption of raw coal, and a pseudo 2nd order and Elovich model was determined for both sorptions of the UBC and dried coal.Briquetting of UBC by a double roll press ScienceDirect
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(PDF) Improving the quality of lignite through addition of
Kobe Steel has been developing Upgraded Brown Coal (UBC) technology since the early 1990's. Currently, the UBC demonstration plant project is being undertaken in Indonesia, and operation of theThe objectives of this study are to evaluate the ash deposition behavior such as slagging and fouling for Upgraded Brown Coal (UBC) and bituminous coal in a 145 MW practical coal combustion boiler. The melting temperature of UBC ash is relatively lower than that of bituminous coal ash. The combustion tests were conducted on blended coalAsh deposition behavior of upgraded brown coal in pulverized coal
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Demonstration of Upgraded Brown Coal (UBC Process
The process, called the upgraded brown coal (UBC) process, is based on the principle of "tempura (Japanese battered deep-fried food)" and efficiently removes the water contained in low rank coal in heated light oil.1) This technical development involves a pilot plant operation in IndonesiaUpgraded Brown Coal (UBC) process is one of the dewatering processes of low rank coal, featuring dewatering of raw coal in oil phase, under a mild condition. Its background and process description are already reported [1], [2] and the detail is eliminated here. Water sorption of dewatered lignite such as UBC is one of the matters of greatestMathematical model of water sorption isotherms of UBC
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Moisture readsorption and low temperature oxidation
Upgraded brown coal (UBC), a well-known coal drying process, enables the utilization of low rank coals. The UBC process removes moisture in the coal using the slurry dewatering process, which involves the evaporation of moisture in the slurry of coal and light oil containing a small portion of heavy oil (such as asphalt) at temperatures of Upgraded Brown Coal (hereinafter referred to as "UBC®" note)). This process features a dewatering method for efficiently removing the large amount of moisture contained in lignite, thus increasing its calorific value. The UBC process has many applications; this paper focuses on mine-mouth power generation based on UBC Mine-mouth Power Generation System Based on
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Mathematical model of the water sorption kinetics of UBC
The UBC (Upgraded Brown Coal) process is a dewatering process involving low rank coal [1] that features the dewatering of the raw coal in an oil phase under mild conditions. This process’s background and the process description has been previously reported [2]. The price of dewatered lignite is determined by its caloric content, which isKobe Steel has been developing Upgraded Brown Coal (UBC) technology since the early 1990's. Currently, the UBC demonstration plant project is being undertaken in Indonesia, and operation of theWater Adsorption and Desorption of Upgraded Brown Coal.
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Kobe Steel to start Indonesian trial project to upgrade brown coal
The UBC Process raises the heat value of brown coal 1.5 times, to the same level as high-rank bituminous coal and has only one-third the ash. At the same time, it solves the problem of shipping and storage limitations, making possible the utilization of upgraded coal as a substitute for high-rank coal.Shigehisa et al. [30] evaluated the behavior of an upgraded brown coal (UBC) in the water presence, the UBC was obtained by mixing the coal with kerosene and oil with low quantity of asphalt (upMathematical model of water sorption isotherms of UBC
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Slagging Behavior of Upgraded Brown Coal and Bituminous Coal
The purpose of this study is to quantitatively evaluate behaviors of ash deposition during combustion of Upgraded Brown Coal (UBC) and bituminous coal in a 145 MW practical coal combustion boiler. Sugita S, Deguchi T, Shigehisa T. Demonstration of a UBC (Upgrading of Brown Coal) Process in Indonesia. Kobe Steel Eng Rep. Upgraded brown coal water mixture (UBCWM) preparation by using an Indonesian upgraded coal produced by upgraded brown coal (UBC) process, was carried out to study the effect of dispersing and stabilizing additives on rheological behavior of the UBCWM. Three kinds of anionic dispersing additives, naphthalene sulfonic formaldehyde Effect of dispersing and stabilizing additives on rheological
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Kobe Steel to begin construction of upgraded brown coal
The UBC Process raises the heat value of brown coal 1.5 times, to the same level as high-rank bituminous coal and has only one-third the ash. At the same time, it solves the problem of shipping and storage limitations, making possible the utilization of upgraded coal as a substitute for high-rank coal.The use of low-rank coal as a substitute for hard coal through the Upgrading Brown Coal (UBC) process is supported by the Indonesian Government Regulation No. 77 of 2014 concerning the obligation(PDF) Product Competitiveness of Upgrading Brown Coal (UBC) Process
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Effect of MgO addition to upgraded brown coal on ash
Kobe Steel started developing this UBC process for Australian brown coal in 1993. The 3 t/d pilot plant for Indonesian UBC has been operated successfully since 2001, and recently, a 600 t/d demonstration plant began operations in Satui, South Kalimantan. In the UBC process, the low-rank coal is first crushed, then mixed with oil and a smallBrown Coal (UBC) Process by Adding Waste Cooking Oil B D Afrah, M I Riady, N Thereza et al.-Characteristics of low-rank and medium-rank Indonesian coal using the TG-DSC steam/hot water drying [4,7–9], upgraded brown coal [10–12], circulating fluidized bed drying [13–15],DFLGGLVWLOODWH
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Physicochemical properties of Indonesian lignite continuously modified
Indonesian lignite was continuously modified in a tunnel-type microwave oven to improve its slurribility. The maximum solid concentration of coal–water slurry (CWS) prepared from modified lignite increased from 41.6 wt.% to 54.0 wt.% with an enhanced rheological behaviour.The contact angle, oxygen functional groups, molar ratio of Photo 1 Briquetted UBC Photo 2 Low-rank coal upgrading demonstration plant 1) Toru Sugita et al., UBC (Upgraded Brown Coal) Process Development, Kobe Steel Engineering Reports, 53, 42, 2003. Reference Clean Coal Technologies in Japan 78 At the stage of solid-liquid separation/solvent recovery, after most4D2. Low-rank Coal Upgrading Technology (UBC Process)
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CHEMICAL AND PHYSICAL PROPERTIES OF UPGRADED
1999). Among them, UBC (upgraded brown coal) process developed by Kobe Steel Ltd., Japan will be applicable (Deguchi, et. al., 2002). The pro-cess upgrades a LRC and reduces moisture con-tent to be equal to high rank coal. Therefore, it is expected to decrease the susceptibility to spon-taneous combustion. Process condition 0.35 MPa, was milder
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