Technology used at IOCL refineries

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IMPORTED TECHNOLOGY:

  1. Hydrocracker Technology:
    1. The first Hydrocracker unit of the country was commissioned at Gujarat Refinery in 1994, adopting technology from Chevron, USA for conversion of Vacuum Gas Oil to Jet fuel, Kerosene and Diesel.
    2. Thereafter, a new Hydrocracking Unit with technologies from UOP, USA has been commissioned at Panipat Refinery
  2. Once Through Hydrocracking Technology:
    1. Once Through Hydrocracker Units (OHCU) were commissioned at Panipat Refinery and Mathura Refinery with technologies from UOP, USA and Chevron, USA respectively and at Haldia Refinery with technology from Axens, France for improvement of distillate yield and diesel quality.
  3. Diesel Hydro-Desulphurisation Technology:
    1. Diesel Hydro Desulphurisation Units have been commissioned in Mathura Refinery and Panipat Refinery with technology from IFP, France and at Gujarat Refinery and Haldia Refinery with technology from UOP, USA to meet the Diesel quality requirement.
  4. Diesel Hydrotreatment Technology:
    1. Diesel Hydrotreatment Units have been commissioned at Guwahati, Barauni Refinery and Digboi Refinery with technology from UOP, USA and at Mathura Refinery and Panipat Refinery with technology from Axens, France to meet the diesel quality requirement. Technology from Axens was also used at Gujarat Refinery for the Resid Upgradation Project.

v) Fluidised Catalytic Cracking Technology: Fluid catalytic cracking (FCC) technology from UOP, USA has been implemented in Gujarat and Mathura Refineries for conversion of Vacuum Gas Oil to LPG, MS and Diesel. vi) Resid Fluidised Catalytic Cracking Technology: The Resid Fluidised catalytic cracking (RFCC) technology from S&W, USA has been successfully implemented at Panipat, Haldia and Barauni Refineries. vii) Catalytic Iso-Dewaxing Unit at Haldia Refinery: For improving the lube oil quality in line with international standards and augmenting production capability, Iso-dewaxing technology from MOBIL, USA has been implemented at Haldia Refinery. viii) Solvent Dewaxing/Deoiling Technology at Digboi: In order to upgrade the process for the production of Paraffin Wax at Digboi Refinery, Solvent dewaxing/deoiling technology from U.O.P, USA has been implemented. ix) Hydrofinishing Technology: Process technology from IFP, France for hydro finishing of paraffin wax has been implemented at Digboi Refinery and for production of Microcrystalline wax has been implemented at Haldia Refinery. x) Biturox Technology: To produce various grades of Bitumen as well as to meet the quality requirements, Biturox technology from Porner, Austria has been implemented at Gujarat Refinery and is under implementation at Mathura Refinery. xi) Hydrogen Generation Technology: Hydrogen generation technology from Linde, Germany was adopted in 1993 for Hydrogen production and supply to Hydrocracker unit at Gujarat Refinery and has been selected for implementation at Barauni Refinery under MS Quality Improvement Project. Also Hydrogen generation technology obtained from Haldor Topsoe, Denmark is in operation at Gujarat, Mathura, Haldia, Panipat and Barauni Refineries and has been selected for implementation at Gujarat Refinery under Resid Upgradation Project as well as Paradip Refinery Project. Similar technology from KTI, The Netherlands has been adopted for Hydrogen generation at Guwahati, Digboi and Mathura Refineries and selected for implementation at Haldia Refinery under Once Through Hydrocracker Project. xii) Sulphur Recovery Technologies for reduction of SO2 emission: Refineries at Gujarat, Haldia, Mathura and Barauni are provided with Sulphur Recovery Technology from Stork Comprimo (now Jacob), the Netherlands. Sulphur Recovery Technology from Delta, Hudson, Canada has been implemented at Panipat Refinery. Further, Sulphur recovery technologies from B & V Pritchard, USA has been implemented at Panipat Refinery and is under implementation at Gujarat Refinery and Paradip Refinery Project. Technology from Technip, KTI, Spain is under implementation at Haldia Refinery. Technology from Jacobs, Netherlands is under implementation at Mathura Refinery. xiii) ISOSIV Technology at Guwahati Refinery: For production of unleaded MS at Guwahati Refinery, ISOSIV technology from UOP, USA has been implemented. xiv) Delayed Coker Technology: For bottom of the barrel upgradation, Coker technology from ABB Lummus, USA has been implemented at Panipat Refinery. Coker technology from Foster Wheeler, USA is under implementation at Gujarat Refinery and Paradip Refinery Project. xv) VGO Hydrotreatment Technology: Technology form M/s UOP has been selected for implementation at Gujarat Refinery and from Axens, France for implementation at Paradip Refinery Project. xvi) Continuous Catalytic Reforming Technology: For improvement in Octane number of Motor Spirit, Continuous Catalytic reforming technology from IFP, France has been implemented at Mathura and Panipat Refineries. Technology from UOP, USA has been implemented at Gujarat Refinery under MS Quality Upgradation Project. xvii) Technology for ParaXylene: For production of ParaXylene at Panipat, technology from UOP, USA has been implemented and the same have been selected for implementation at Paradip Refinery Project. xviii) Technology for Purified Terephthalic Acid (PTA): For production of PTA at Panipat Refinery, technology from Du Pont, USA has been implemented. xix) Technology for Linear Alkyl Benzene (LAB) Technology from UOP, USA has been implemented for production of Linear Alkyl Benzene at Gujarat Refinery. xx) MS Quality Upgradation Technology For MS Quality Upgradation, Isomerisation Technology of UOP, USA and Axens, France has been implemented at Mathura and Haldia Refineries respectively. Technology from UOP is under implementation at Gujarat and Panipat Refineries. Technology from Axens is under implementation at Guwahati, Digboi and Barauni refineries. FCC Gasoline desulphurisation technology (Prime-G) from Axens, France has been implemented at Haldia Refinery and has been selected for implementation at Mathura, Barauni and Panipat Refineries. xxi) Naphtha Cracker Technology Naphtha Cracker Technology from ABB Lummus, USA has been selected for adoption at Panipat refinery. Technologies from Basell, Italy, Basell, Germany, Nova Chemicals, Canada & Scientific Design, USA are under implementation for various downstream polymer plants viz. PolyPropylene Unit, HDPE unit, Swing unit (HDPE/LLDPE) and MEG unit respectively. Technology from Basell, Italy has been selected at Paradip Refinery Project for production of Poly-Propylene. xxii) Alkylation Technology: For production of MS, Alkylation technology from Exxon Mobil has been selected for implementation at Paradip Refinery Project. xxiii) Ethyl Benzene/Styrene Technology: For production of Ethyl Benzene/Styrene, technology from ABB Lummus, USA has been selected for implementation at Paradip Refinery Project. xxiv) Regenerative type Flue Gas De-Sulphurisation Technology: In order to recover Sulphur Di-Oxide from Boiler flue gases a Regenerative type Flue gas De-sulphurisation technology from Cansolv Technology Incorporate (CTI), Canada, has been selected for implementation at Paradip Refinery Project. xxv) Spent Acid Regeneration Technology: In order to regenerate fresh sulphuric acid from spent sulphuric acid recovered from Alkylation Unit a Spent Acid Regeneration technology from MECS, USA has been selected for implementation at Paradip Refinery Project. xxvi) ATF Treatment Technology: ATF Treatment Technology from M/s UOP is under implementation at Gujarat Refinery. Technology from Merichem, USA has been selected for Paradip Refinery Project. INDIGENOUS TECHNOLOGY: i) INDMAX Technology: INDMAX technology developed in-house by IOC(R&D) for converting heavy distillate and residue into LPG/light distillate products has been implemented successfully at Guwahati Refinery. For production of petro-chemical feedstocks viz. Ethylene, Propylene from VGO, INDMAX technology has beenselected for implementation at Paradip Refinery Project. ii) Hexane Hydrogenation Technology: Hexane Hydrogenation process for production of Food grade Hexane (WHO Grade quality), developed by IOC (R&D) with indigenous catalyst has been successfully implemented at Gujarat Refinery