CFD Simulation of BCL Process: Effect of Temperature on the Yield Distribution of Product.

Novia, Novia and Cundari, Lia and Murti, SD Sumbogo and Faizal, Muhammad (2009) CFD Simulation of BCL Process: Effect of Temperature on the Yield Distribution of Product. In: International Symposium on Sustainable Energy and Environmental Proetction (ISSEEP) 2009, 23-26 November 2009, Yogyakarta-Indonesia .

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    Indonesian has 61.274 billion tons of coal which 70% of these are brown coal (lignite). The huge number of coal can be used to cover oil consumptions that increase every year. One of the processes to utilize of these coals is the Brown Coal Liquefaction (BCL) Technology. Brown Coal Liquefaction (BCL) Technology is the process to convert brown coal (lignite) with high-molecular-weight hydrocarbons to valuable liquid products such as light-oil, middle-oil, and heavy-oil. It is carried out experimentally in one liter stirrer autoclave under high operating conditions (Temperature: 430 – 450oC; Initial hydrogen pressure: 8 – 12 MPa). Initially, coal slurry, solvent, limonite catalyst, and gas hydrogen were injected to the reactor. After appropriate operating conditions, the complex cracking and hydrogenation reactions were took place during 60 minutes of residence time. For the description of multiphase and reaction occurring throughout the BLC process, a commercial computational fluid dynamics (CFD) code Fluent 6.3 modeling technique was used. The Eulerian-Eulerian modeling approach was applied to predict fluid-solid flow behavior. The results of this simulation showed a good prediction of the yield distillate profile under different temperature. Therefore, the optimized operating condition was obtained.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: T Technology > TP Chemical technology
    Divisions: Faculty of Engineering > Department of Chemical Engineering
    Depositing User: Dr. Novia
    Date Deposited: 14 Mar 2013 12:45
    Last Modified: 14 Mar 2013 12:45

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