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VESTA SNG Methanation TechnologySolid fuels to SNG applicationsAmec Foster Wheeler Italiana (a Wood Company)
Solid Fuel to SNGThe Methanation Reactions are Highly ExothermicCO 3 H2 CH4 H2ODH - 205 kJ/moleCO2 4 H2 CH4 2 H2ODH - 165 kJ/mole wood. 2018
Competing technologies review The recycle of CH4 product to syngas is the standard process tohandle the exothermic reactions for competing technologiesCO2 H2S SNGGASIFICATIONSOUR SHIFTACID GASREMOVALRECYCLECOMPRESSORMETHANATION REACTORSProcess characteristics: Recycle compressor to handle the exothermic reactions (a lot of product gases gothrough circulation, as a heat transfer medium) Complex adjustment of the feed gas to achieve on-spec SNG wood. 2018
Solid Fuel to SNG - Competing Different TechnologiesDifferences in H2/CODifferences in CH4 wood. 2018Adjustmentof H2/CORatio 3:1CO ConversionSour Gas ShiftCO2 RemovalH2S RemovalSNG ProcessSNGPurificationSNG ProcessPhysical SolventComplex scheme toseparate H2S from CO2Exothermic ReactionExpensive ReactorsMaterialHigh temperatureSuperheaterRecycle at hightemperatureRecycle Compressor
Solid Fuel to SNG - Competing technologiesSOLIDFUELGasificationBlockAdjustmentof H2/CORatio 3:1CO2 RemovalH2S RemovalSNG ProcessSNG ProcessCriticalitiesExothermic ReactionExpensive ReactorsMaterialHigh temperatureSuperheaterRecycle at hightemperatureRecycle CompressorH2/CO RatioCoke formationRecycle mandatoryTemperature runawayBrick lined reactorsUnsafe OperationMetal dusting riskLimitation in train size wood. 2018SNG
Effect of H2/C ratio in competing technology onSNG product quality wood. 2018
Solid Fuel to SNG – VESTA Technology VESTA - Can we do more for you? Can we avoid high temperatures? Can we avoid recycle compressors? Can we avoid brick lined vessels? Can we avoid high alloyed steel? wood. 2018
VESTA technology review The VESTA technology is a once-through Process characteristics: No recycle compressor CO2 and H2O control heat of reaction Easy to control wood. 2018METHANATION REACTORSCO2REMOVAL
Solid Fuel to SNG – Technologies comparisonAvailable TechnologiesSOLIDFUELGasificationBlockAdjustmentof H2/CORatio 3:1CO2 RemovalH2S RemovalSNG ProcessSNGH2S RemovalSNG ProcessCO2 RemovalSNGVESTA TechnologySOLIDFUELGasificationBlock wood. 2018
Solid Fuel to SNG - VESTA technologySOLIDFUELGasificationBlockH2S RemovalSNG Process / CO2 removalSNGGasificationPurificationSNG Process / CO2 removalAll gasificationtechnologies arecompatible with theNovel VESTA ProcessHigh efficiency / WHB /dry type are morebeneficialH2S removalCarbonyl removalFine PurificationNo H2/CO ratioadjustmentNo limitations of H2/CO ratioNeither coke formation nor metal dusting riskLow alloyed steel reactorsLow severity WHBNo Recycle CompressorFinal CO2 removal (high quality) wood. 2018
Effect of H2/C ratio in VESTA technology on SNGproduct qualityThe feed composition under different H2/Cconditions wood. 2018Effect of feed gas with different H2/C ratio oncrude SNG composition
VESTA technology - catalyst Catalyst (high temperature methanation) Methanation reactors filled withproprietary Clariant catalyst High stability, robust under differentconditions Suitable for the operating range230-700 C(higherthanconventionalmethanationcatalysts) High CO and CO2 conversion No carbon deposition Long operational historyindustrial referencesand Available as pre-reduced catalystfor simple start-up wood. 2018
VESTA technology - catalyst Catalyst (high temperature methanation)The temperatureprofile of VESTAmethanators,running for 4000 hours wood. 2018
VESTA technology - catalyst Catalyst (high temperature methanation)Clariant experience in methanationSNG 5000 at DakotaGasification; catalyst start-upin 2015; 1.6 bn Nm3/aCO2 to SNG (Audi): ClariantCatalyst 2 year on-stream;1.4 m Nm3/a green CH420152014SNG5000 at Wisonpilot plant,100 Nm3/h SNG20131980-2000: SNG pilot plant inLouisville/US; Basic Developmentof SNG 5000 catalyst, 10 Nm3/h20101990198019751970: Lurgi/Sasol SNG process inSouth Africa: isothermal adiabatic, wood. 20182000-2010: development of SNG5000 improved SNG catalyst,R&D center Louisville/US1977-1990: first commercial COG to SNGplant in JP operated with Clariant catalystsCOG inlet: 25.000 Nm3/h
VESTA technology - lower CAPEX/OPEX VESTA technology reduces the investment and energyconsumption of purification devices43.532.521.510.501Partial pressure change of CO2Gas volume changes before and after methanationConventionalVESTAmmWash Column6.54.6/5.2CO2Production Column44.4H2S Enrichment ColumnHot Regeneration Column6.56.65.25Tail Gas Wash Column5.85Tower diameterComparison of main towers wood. 20182
VESTA technology - steam flexibility VESTA provides full flexibility of steam quality Temperature: 450 to 500 C Pressure: For all industrial applications wood. 2018
VESTA technology evaluation VESTA is suitable for all types of gasifiersFixed BedDry Feed WHBDry Feed Quench The following comparison is based on Dry Feed WHB gasifier wood. 2018
VESTA technology evaluation Worthto include all the sections downstream the gasification scrubber up tothe CO2 removalTechnology comparison basisCO2Raw syngasfrom hysicalSNGHP SteamElectric PowerCooling waterDemin waterWaste water We can offer an integrated SNG / Acid Gas Removal solution with suitableprocess guarantees wood. 2018
VESTA technology evaluationVESTA has lower CAPEXEquipment cost comparisonCompeting TechnologyVESTABASE-20 %SAVING ON EQUIPMENT COST % The comparison accounts for the acid gas removal (H2S and CO2), the CO Shift andMethanation. Syngas from Dry feed WHB gasification wood. 2018
VESTA technology evaluationVESTA has lower Energy Consumption (OPEX)Production / Consumption figure (GB30179-2013)TOTAL %Competing TechnologyVESTABASE15 % better Comparison according to the Norm GB30179-2013 Comparison based on integrated SNG Acid Gas Removal scheme wood. 2018
VESTA Pilot Plant Wood has signed a cooperation agreement with Clariant InternationalAG (“Clariant”) and Wison Engineering Ltd (“Wison Engineering”) tobuild a pilot plant to demonstrate the Wood VESTA SNG technology. Allthe parties have a large experience in the coal industry.Pilot plant: Designed for a production capacity of 100 Nm3/h of SNG and includesall reactors and control system in order to completely demonstrate areal plant in addition to the verification of the chemical reactions Erected in Nanjing, China Two test campaigns have been carried out in 2014 and 2015/2016 tosuccessfully demonstrate a continuous operation at 100% SNGproduction meeting the Chinese natural gas grid specification, and totest different operating parameters. wood. 2018
VESTA Pilot PlantDesign drawing and real pilot plant with methanation reactors wood. 2018
Full range of pilot test for VESTA SNG technologyEffect of low S/G ratio on carbondeposition of catalystDifferentS/G ratioEffect of different S.V. onreaction equilibriumEffect of different feedcomposition on reactionDifferentH2/C ratioDifferentS.V.Contents ofpilot testTo verify the low temperature activityof the catalyst and high temperaturestability wood. fy the anti-toxic abilityof the catalyst
Examples of VESTA Technology application Coal to SNG Petcoke to SNG wood. 2018
Coal to SNG – VESTA Technology applicationIn some areas of the world, natural gas demand cannot be satisfiedby import with the consequent requirement to exploit coal reservesto produce fuel by means of SNG.TECHNICAL DATAFeedstock: Bituminous coal: LHV equal to 25,870 kJ/kgand sulphur content of 1.1% wt (dry, ash free)Flowrate:100 t/hSNG production:34,800 Nm3/hElectrical power production:0 MWe net (*)(*) Gross electrical power production 53 MWe wood. 2018
Coal to SNG – VESTA Technology application wood. 2018
Petcoke to SNG – VESTA Technology applicationConsidering a 200,000 BPSD refinery processing an averagecrude, 100 t/h of petcoke are produced.TECHNICAL DATAFeedstock: petcoke from a DCU, LHV equal to 32450 kJ/kgand sulphur content of 6.7% wt (dry, ash free)Flowrate:100 t/h (*)SNG production:37,800 Nm3/h (362 MWth)Electrical Power production:60 MWe net suitable tosatisfy refinery needs(*) Petcoke : 75 t/h to SNG production and 25 t/h to power station. wood. 2018
Petcoke to SNG – VESTA Technology application wood. 2018
Polygeneration plant application with VESTA Wood perfomed a study to assess the performance and costs of two Polygenerationplants, based on the coal gasification process and aimed at the production ofSubstitute Natural Gas (SNG) Case #1: Medium-pressure (40 barg) Coal Gasification Process, with dryfeedsystem and Synthesis Gas Cooler. Case #2: High-pressure (85 barg) Gasification Process, quench type and slurryfeed system.DESIGN BASIS Plant capacity: 2,000 MWth SNG min Electric power produced by means of dedicated steam turbines Coal-fired Circulating Fluidized Bed (CFB) boilers to meet the additional steamproduction of the plant for power generation Methanation unit based on the VESTA technology, producing SNG wood. 2018
Polygeneration plant application with VESTA(Case #1) wood. 2018
Polygeneration plant application with VESTA(Case #1) wood. 2018
Polygeneration plant application with VESTA(Case #2) wood. 2018
Polygeneration plant application with VESTA(Case #2) wood. 2018
Experience transfer Wood has a great deal of experience in hydrogen plants where syngas isproduced, shifted and cleaned-up Wood has a great deal of experience in power generation following agasification unit (designed, engineered, constructed and started-up one of thelargest IGCC in the world) Wood have a great deal of experience in AGR systems from all availableLicensors Wood has the capabilities to engineer complex control systems for thesimultaneous operation of multi-unit complexes Wood completed two BDP relevant to methanation and purification, sold thefirst license, and is ready to globally commercialize the VESTA technology. wood. 2018
Thank youFor VESTA enquiries,please [email protected] wood. 2018Questions and Answers?!
VESTA technology - lower CAPEX/OPEX VESTA technology reduces the investment and energy consumption of purification devices 0 5 1 5 2 5 3 5 4 1 2 Gas volume changes before and after methanation Partial pressure change of CO2 Tower diameter Conventional VESTA m m Wash Column 6.5 4.6/5.2 CO 2 Production Column 4 4.4 H 2 S Enrichment Column 6.5 5.2
