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PETROFED Work Shop on Energy Management & Efficiency Improvement in Oil & Gas Sector

PETROFED Work Shop on Energy Management & Efficiency Improvement in Oil & Gas Sector. Oxy Enrich Process for Capacity Enhancement of Claus Based Sulfur Recovery Unit. NOVEMBER 13, 2009. NEW DELHI. MAIN DRIVERS FOR OPTING SULFUR REVAMP IN CPCL.

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PETROFED Work Shop on Energy Management & Efficiency Improvement in Oil & Gas Sector

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  1. PETROFED Work Shop on Energy Management & Efficiency Improvement in Oil & Gas Sector Oxy Enrich Process for Capacity Enhancement of Claus Based Sulfur Recovery Unit NOVEMBER 13, 2009 NEW DELHI

  2. MAIN DRIVERS FOR OPTING SULFUR REVAMP IN CPCL • ADDITIONAL ACID GAS GENERATION OF ABOUT 16% DUE TO NEW PROCESS UNITS BEING INSTALLED UNDER THE EURO- IV PROJECT • AVAILABILITY OF VERY MARGINAL CAPACITY IN THE EXISTING UNITS ABOUT 10% • REQUIRED CAPACITY LEVELS OBSERVED TO BE (ABOUT 30 TPD) NOT COST EFFECTIVE COMPARATIVELY , IF NEW UNIT OPTION IS ADOPTED • SCOUTED FOR VIABLE OPTIONS FOR MARGINAL AUGMENTATION • REQUIREMENT OF QUICK AND LOWER COST OPTIONS IN HAND

  3. DEMONSTRATION RUN OF OXYGEN ENRICHMENT IN SULFUR RECOVERY UNIT OF CPCL • SALIENTFEATURES: • Technology is First of its kind being implemented in Indian Refineries. •    Project jointly undertaken by CPCL & EIL (R&D). •    Technology will be jointly licensed by CPCL & EIL. •    Demonstration Run being done by CPCL from 11/5/2009 •    No Major hardware modifications in the existing unit. •    Capacity increase by 15% to 22% (From 90 TPD to 104 / 110 TPD of Sulphur in each Train) •    Oxygen content in Air Enriched from 19.6 to 28 vol% •    Low cost option for enhancing SRU capacity. •   Cost towards demonstration run is about Rs.2 Cr. Slide 4 of 8

  4. MAJOR MILESTONES OF DEMONSTRATION RUN Slide 5 of 12

  5. Acid Gas Preheater Acid Gas from ARU/SWS Catalytic Stages Burner Furnace WHB Oxygen from Oxygen Supply System Mixer Combustion air from Blower

  6. RATIO CONTROLLER FIC FIC FIC O2- STORAGE VESSEL UV FV O2- VAPORIZER O2 ANALYZER AIR BLOWER MIXER PROCESS GAS FOR SULPHUR RECOVERY MAIN COMBUSTION CHAMBER ACID GAS MB

  7. Plant Capacity : 65 TPD • Typical Feed Composition

  8. Feeds • Acid Gas • Source : Amine Regenerator O/H • H2S concentration : 74-90%v • Vaporised Oxygen • Source : Liquid Oxygen Storage Vessel • Combustion Air • O2 concentration : 19.6-28%v Controlling Parameters • Temperature of Reaction Furnace Effluent • Maximum allowable temperature : 1500oC • Backpressure of the unit • Maximum allowable pressure : 0.74 Kg/cm2 • Sulfur recovery of the unit • Minimum sulfur recovery : 99%

  9. Objectives : • Demonstration of OxyEnrich Process in a commercial plant • Commercial use of OxyEnrich Process for processing additional acid gas to be generated in Euro IV Project Existing SRU • Process : MCRC • Design Capacity : 90 TPD Sulfur • Design Sulfur Recovery : 99.0% ( min)

  10. Oxygen Air Blower Liquid Oxygen Vaporization Unit Air LP Steam Acid Gas, Air , Fuel Gas Acid Gas RF Claus Reactor-I WHB Condenser-I Line Burner Claus Bypass LP Reheater Fuel Gas S T A C K MCRC-I MCRC-II MCRC-III Condenser-II LP Steam Condenser-III Condenser-IV Condenser-V Sulphur Incinerator Air , Fuel Gas

  11. THANK YOU

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