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C N G (Compressed Natural Gas) Dr. Slamet

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Pengolahan Gas Bhn Bakar Separasi GasSweetening Gas Drying Hg-removal Fraksinasi Pendinginan & Pencairan Kompresi Gas Bumi LNG CNG Gas Piping C1 C2+ LPG LPG Refrigerant Refrigerant Kondensat Kondensat SynGas GTL Fischer Trops

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Volume Reduction LNG volume reduction: 600 times (all liquids at atmospheric pressure and –256 F) CNG volumes reduction: function of pressure and temperatures Higher pressure and lower temperature lead to higher volume reduction CNG volume reduction examples: P = 2850 psig 206 times at 100 F & 280 times at 32 F P = 1400 psig 103 times at 100 F & 133 times at 32 F

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CNG Volume Reduction

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Pengaruh impurities pada CNG

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Terrestrial CNG Technology: TransCanada

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Marine CNG Technology: VOTRANS (EnerSea) Using bundles of steel pipes containing the gas under optimized Pressure & Temperature

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Incorporating spools of coiled tubing Marine CNG Technology: Coselle (Williams)

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CNG gas quality standard California C188.0 % min C26.0 % max C3 and higher HC3.0 % max C6 and higher HC0.2 % max Hydrogen0.1 % max CO0.1 % max Oxygen1.0 % max CO 2 +N 2 1.5 – 4.5 % Sulphur16 ppmv (max)

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BFD utk CNG Terrestrial

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BFD utk CNG Marine

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STUDI KASUS

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