OLEFINS PRODUCTION - TVK

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Considerations for feedstocksParaffins are the best raw materialsLower carbon number gives higher ethyleneyieldCracking severity influences product yieldSteam crackers are mostly integrated intorefineries therefore– both gaseous and liquid feeds are used,– profitability is very complex issue and evaluatedtogether with refinery operation27Steam cracking processesSteam cracking at <strong>TVK</strong>28
Process design considerationsEthylene process is one of most complex systems inpetrochemical industry. The following challenges haveto be faced:– Safety first– High energy efficiency and minimum environmentalemissions– Low production costs and low investment costs– High plant reliability– Simple operation– Good maintainability– Minimum losses29Material and energy streams at <strong>TVK</strong>Olefin-2Natural gasSteamElectric powerNaphthaGasoilLPG (propane, butane)Olefin-2Methane (to fuel gas)Hydrogen TIFOEthylene PE productionPropylene PP productionBT fraction MOLC8 fraction MOLC9+fraction MOLQuench oil CTKEthane (repyrolysis)Propane (repyrolysis)C4/C5 (repyrolysis)30
Page 1 and 2: OLEFINS PRODUCTIONOlefins by steam
Page 3 and 4: Building block for petrochemicals -
Page 5 and 6: Hungary: ethylene produced by TVK o
Page 7 and 8: Ethylene at TVK1975: First steam cr
Page 9: Principle of the cracking process17
Page 12 and 13: Wide range of feedstocksGaseous fee
Page 16 and 17: Olefin process overview31Cracking f
Page 18 and 19: Hot section in O-2OFurther cracked
Page 20 and 21: Cold section block diagram39Cold se
Page 22 and 23: About safetySafety first concept ha
Page 24 and 25: Example for risk reduction: selecti
Page 26 and 27: Control systems in O-2O51Key equipm
Page 28 and 29: Crack gas compressor O-2 O 2 plant2
Page 30 and 31: Turbine driven BFW pump59Multistage
Page 32: Ethylene production costBasis: WE 2

OLEFINS PRODUCTION - TVK

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