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  • Demonstration of Upgraded Brown Coal (UBC Process by 600

    Kobe Steel has been working on the technological development of upgrading low rank coal since the early 1990s. 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.

  • CHARACTERIZATION OF UPGRADED BROWN COAL

    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 UBC bench scale unit of 100 kg/day at a temperature of 150°C and a pressure of 350 KPa using kerosene as the process media.

  • 4D2. Low-rank Coal Upgrading Technology (UBC Process)

    Since the upgraded coal produced in the UBC process is still in a powder form, for transportation to non-local customers it is formed into briquettes. Using a double roll briquetter, the upgraded coal can easily be briquetted without the use of a binder. Photo 1 shows a picture of upgraded-coal briquettes. ˜ 2.

  • UBC (Upgraded Brown Coal) process development

    Such coal is difficult to utilize efficiently due to its low heat value. On the other hand it is ecologically desirable because of its low sulfur and ash content. Kobe Steel has developed a coal...

  • CHEMICAL AND PHYSICAL PROPERTIES OF UPGRADED

    From ultimate analyses, carbon content of the upgraded coals increases, whereas the hydrogen and oxygen contents decrease. The UBC process hardly effects to the sulfur and nitrogen contents. The equilibrium moisture of the upgraded coals was determined by using ASTM Standard method, most of them were less than 9%.

  • CHEMICAL AND PHYSICAL PROPERTIES OF UPGRADED BROWN

    The ash content of the upgraded coals did not change obviously due to the UBC process which was conducted at low temperature. However, the volatile matter content increase slightly due to the residue plugs over coal pores to prevent re-absorb of moisture.

  • Mine-mouth Power Generation System Based on Upgraded

    Kobe Steel has developed a process for producing Upgraded Brown Coal (UBC®) by applying a unique slurry dewatering technology. A study has been conducted using the UBC made from Indian lignite to verify its applicability in improving the efficiency of mine-mouth power generation.

  • Upgraded Brown Coal Demonstration Plant starts

    The UBC Process uses dewatering technology developed during those years to reduce the amount of the water in the brown coal. Using the same principle that makes tempura crispy, this innovative process uses light oil to efficiently remove the water in the brown coal. Kobe Steel began development of the UBC Process in 1993.

  • Ash deposition behavior of upgraded brown coal in

    01/07/2011· Ash deposition of Upgraded Brown Coal(UBC) with low ash melting point is evaluated. Blending UBC with bituminous coal played a role in reducing molten slag fraction. Solid phase of alumino-silicates were produced due to bituminous coal blending. Proper blending enables to be used without any ash deposition problems in boiler.

  • Effect of MgO addition to upgraded brown coal on ash

    01/11/2011· 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 small amount of asphalt to produce the slurry. This coal

  • CHEMICAL AND PHYSICAL PROPERTIES OF UPGRADED

    From ultimate analyses, carbon content of the upgraded coals increases, whereas the hydrogen and oxygen contents decrease. The UBC process hardly effects to the sulfur and nitrogen contents. The equilibrium moisture of the upgraded coals was determined by using ASTM Standard method, most of them were less than 9%.

  • Kobe Steel to begin construction of upgraded brown coal

    Upgraded Brown Coal Process Kobe Steel began development of the UBC Process in 1993, applying slurry dewatering technology used in coal liquefaction to upgrade low-rank coal. Using a 100-kg-per-day bench-scale unit built at Kakogawa Works, Kobe Steel began working on the practical application of the process in the mid-1990s.

  • UBC (Upgraded Brown Coal) process development

    Such coal is difficult to utilize efficiently due to its low heat value. On the other hand it is ecologically desirable because of its low sulfur and ash content. Kobe Steel has developed a coal...

  • Ash deposition behavior of upgraded brown coal in

    01/07/2011· Kobe Steel, Ltd. has developed an UBC process based on a slurry dewatering technology,,. The UBC stands for Upgraded Brown Coal. Akiyama et al. also evaluated the combustion characteristics of UBC. However, the ash melting points of Indonesian low-rank coals are

  • Ash Deposition Behavior of Upgraded Brown Coal and

    Upgraded brown coal (UBC) and two types of bituminous coal with different melting temperatures and ash compositions were used as samples. The deposition tests were conducted using a refractory furnace. A water-cooled tube was inserted into the furnace to make the ash adhere to it. The molten slag fraction in ash was estimated by means of chemical equilibrium calculations. The results showed

  • The Effect of Upgrading Processes on Combustion

    Indonesian coal was upgraded by upgraded brown coal (UBC), hot water drying (HWD), and steam drying (SD) processes to study the combustion characteristics of this coal.

  • Effect of MgO addition to upgraded brown coal on ash

    01/11/2011· 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) combustion, and the elucidation of the mechanisms of the reduction of ash deposition. The melting temperature of UBC ash is 1494 K, which is lower than that of bituminous coal ash.

  • Effect of dispersing and stabilizing additives on

    01/04/2009· One of the upgrading methods, which was developed and applied, is upgraded brown coal (UBC) process. The condition of process at temperature of about 140 °C and pressure of 0.35 MPa, is much milder compared to other upgrading methods.

  • IMPROVEMENT OF LOW RANK COAL PROPERTIES BY VARIOUS

    Various coal upgrading processes were conducted i.e. upgraded brown coal (UBC), hot water drying (HWD) and steam drying (SD). The UBC process was carried out in pilot scale with a capacity of 5 tons/day at temperature of 160°C and pressure of 0.35 MPa, while the HWD and SD pro-

  • process of changing lignite coal to bituminous coal

    demonstration of upgraded brown coal (ubc process . demonstration of upgraded brown coal (ubc ) process by 600 half of the minable coal is low rank coal such as lignite or brown coal. bituminous coal with a . Get Price. coal to graphene (c2g) process ohio university. coal to graphene (c2g) process ou id: #14008 this invention is enabled by a patent pending technology, the "coal to graphene