Refinery Operations Planning-Presentation

Refinery Operations Planning-Presentation - Refinery...

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Refinery Operations Planning Sarah Kuper Sarah Shobe Andy Hill
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Refinery Operations Planning • What is a refinery? – Takes crude oil and converts it into gasoline – Distills crude into light, medium, and heavy fractions • Lightest fractions – gasoline, liquid petroleum gas • Medium fractions – kerosene and diesel oil • Heavy fractions – gas oils and residuum
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Process that is fed by heavier fractions to produce lighter fractions Hydrocracker Reformer Process used to increase the octane number of light crude fractions
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Distillation Column Process that separates crude oil into fractions according to their boiling point Gasoline Blending Process that blends various streams of gasoline Delayed Coking Process used to produce high value liquid products
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Hydrotreating Process that uses H 2 to break up sulfur, nitrogen compounds, and aromatics Isomerization Process that converts normal, straight chain paraffins to iso- paraffins
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Refinery Operations Planning “Refining is a complex operation that depends upon the human skills of operators, engineers, and planners in combination with cutting edge technology to produce the products that meet the demands of an intensely competitive market.” Sources: http://www.exxon.mobil.com/UK-English/Operations/UK_OP_Ref_RefOp.asp and http://static.flickr.com/18/24007819_4d67ab2c0b.jpg
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Refinery Operations Planning • Planning groups in a refinery attempt to optimize the refinery’s profits by purchasing specific amounts of different crudes • Based on: – Projected market demands and prices – Unit capabilities – Planned turnarounds
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HDS FOVS FO2 GASOLINE POOL DIESEL POOL CDU2 CDU3 MB FG LPG Naphtha FO Kero DO NPU LN HN ISOU CRU HN FG REF LPG KTU ISO LN Kero IHSD MTBET DCCT ISOG SUPG HSD JP1 FO1 Products Intermediates PHET SLEB LB TP OM Crudes Kero FO Kero Refinery Operations Planning
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Refinery Operations Planning • Planning Example – Winter • high fuel oil demand more fuel (heating) oil produced – Summer • lower fuel oil demand more gasoline produced
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Refinery Operations Planning • LP models use average operating conditions • Graph shows that average operating conditions may not optimize particular unit (CRU)
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Current Models • Current models operate linearly (LP) – Black Box Theory • PIMS (by Aspentech) • RPMS (by Honeywell Hi-Spec Solutions) • GRMPTS (by Haverly)
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HDS FOVS FO2 GASOLINE POOL DIESEL POOL CDU2 CDU3 MB FG LPG Naphtha FO Kero DO NPU LN HN ISOU CRU HN FG REF LPG KTU ISO LN Kero IHSD MTBET DCCT ISOG SUPG HSD JP1 FO1 Products Intermediates PHET SLEB LB TP OM Crudes Kero FO Kero Black Box Theory
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LP Planning out i F , in F conversion % out ON 98 = out ON in out j F F = 25 . 0 , out j F , in out i F F = 75 . 0 ,
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HDS FOVS FO2 GASOLINE POOL DIESEL POOL CDU2 CDU3 MB FG LPG Naphtha FO Kero DO NPU LN HN ISOU CRU HN FG REF LPG KTU ISO LN Kero IHSD MTBET DCCT ISOG SUPG HSD JP1 FO1 Products Intermediates PHET SLEB LB TP OM Crudes Kero FO Kero Modeling Unit Operations HDS Operating Variables: Temperature Pressure Flow Rate Input Sulfur Weight Percent
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This note was uploaded on 08/31/2011 for the course CHE 4273 taught by Professor Staff during the Spring '10 term at Oklahoma State.

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Refinery Operations Planning-Presentation - Refinery...

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