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Presentasi LNG Spill

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Penanganan LNG Spill
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  Pendahuluan A. SIFAT-SIFAT DASAR DAN KARAKTERISTIK LNG : ã Tergantung jumlah kandungan methane,ethane, propane,buthane ã Uap LNG > dari udara C O M P O S I T I O N   METHANE   83.0 % - 99.0 % ETHANE   1.0 % - 13.0 % PROPANE 0.1 % - 3.0 % BUTANE   0.2 % - 1.0 %  P H Y S I C A L P R O P E R T I E S   Normal boiling point   -255 0 F(-159 0 C) to - 263 0 F(- 164 0 C)   Density liquid at nbp   3.5 lb./gal. to 4 lb./gal.   Specific gravity of vapor @ 69 0 F   0.55   Liquid to vapor expansion   620 : 1 (approx.)   Solubility in water    None   Heat of vaporization   220 BTU/lb. - 248 BTU/lb.   770 BTU/gal. - 990 BTU/gal.    C O M B U S T I O N P R O P E R T I E S   Flammable range of vapor    5 % - 14 % (atmospheric)   6 % - 13 % (cryogenic)   Minimum ignition temperatur    0.2 - 0.3 milli joules    Auto Ignition Temperature   999 0 F (537 0 C)   Heat of Combustion   22.000 BTU/lb.   Burn Rate, steady state   0.2 - 0.6 inch./min.     B. Tumpahan LNG Pada Tanah Tumpahan LNG pada tanah yang tidak mempunyai pembatas. “Unconfined Spill on Land.”   LNG SPILL INITIAL BOILING RATE 10 Cufm/ft2 21 0C Warm ground
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