Global Coverage



Nasato Consulting Ltd.'s expertise in sulfur has extensive global coverage:



Algeria Belgium Bulgaria Brazil Canada
Finland Germany Greece India Italy
Kazakhstan Kuwait Malaysia Mexico Norway
Poland Portugal Qatar Saudi Arabia St. Croix
Sweden Spain Thailand United Arab Emirates United Kingdom
United States of America Venezuela Vietnam - -

Project List


Nasato Consulting Ltd. has completed a variety of projects for clients around the world.


Client Location Unit Year Scope of Work
Flint Hills Refining Pine Bend Refinery WHB 2023 Replacement Study
CITGO Petroleum Corporation Corpus Christi Refinery, Texas SCOT 2023 Startup Procedure
McKinsey & Company Refinery, India SRU/TGCU 2023 Improvement Project Technical Assistance
CITGO Petroleum Corporation Lemont Refinery, Illinois Flame Scanner 2023 Study
CITGO Petroleum Corporation Lemont Refinery, Illinois Chamber/Reaction Furnace 2023 Replacement Study
Valero Energy Three Rivers Refinery SRU Burner 2023 Reliability RCA
Flint Hills Refining Pine Bend Refinery WHB 2023 Redesign
Cenovus Energy Lima Refinery, Ohio SRU Burner 2023 RCA Assisstance
Vision Invest Refinery, Saudi Arabia TGCU 2023 P&ID Review
Cenovus Energy Lima Refinery, Ohio Degassing System 2023 Optimization Study
CITGO Petroleum Corporation Corpus Christi Refinery, Texas SCOT Ejector 2023 Detailed Engineering Technical Review
Delek US Big Spring Refinery, TX SRU/SCOT 2023 Capacity Study
Suncor Energy Montreal Refinery, QC SRU 2023 Equipment Upgrade Study
Qatar Energy Doha, Qatar SRU 2023 Turndown Study
CSV Midstream Calgary, Alberta Training 2023 Engineer Training
Chemtrade Solutions Anacortes Refinery Training 2023 Operator & Engineer Training
Valero Energy Texas City, TX Reaction Furnace 2023 Optimization Study
Air Products and Chemicals, Inc. Bengalon, Indonesia Degassing Unit 2022 Process Design Package
Cenovus Energy Lima Refinery, Ohio Sulfur Handling 2022 CFD Modeling Evaluation Optimization
Olayan Descon Engineering Co. Saudi Arabia Training 2022 SRU and TGU Onsite Technical Training
CITGO Petroleum Corporation Corpus Christi Refinery, Texas SCOT Unit 2022 West Plant SRU Troubleshooting
Olayan Descon Engineering Co. Saudi Arabia SRU Heat Exchangers 2022 Thermal Design
Cenovus Energy Lima Refinery, Ohio Sulfur Handling 2022 Troubleshooting/SRU Shutdown Procedure
Phillips 66 Ltd. Humber Refinery, UK WHB Thermal Evaluation 2022 Thermal Evaluation
CITGO Petroleum Corporation Corpus Christi Refinery, Texas Training 2022 East Plant Operator Training
CITGO Petroleum Corporation Corpus Christi Refinery, Texas Eductor 2022 Startup Eductor Design
CITGO Petroleum Corporation Lake Charles Refinery Reaction Furnace 2022 Redesign
Phillips 66 Ltd. Borger Refinery, Texas WHB 2022 Design Optimization
Coffeyville Resources Coffeyville Refinery, Kansas Training 2022 Operator Training
Saudi Aramco Fadhili Gas Plant HP Steam Reheaters 2022 Process Evaluation
Flint Hills Refining Pine Bend Refinery WHB 2022 Distributor Design
Siirtec Nigi PCK Raffinere GmbH Degassing Unit 2022 Process Design Package
CITGO Petroleum Corporation Lemont Refinery, Illinois WHB Refractory Review 2022 Design Overview
Air Products and Chemicals, Inc. Bengalon, Indonesia Grassroot SRU 2022 Design Overview
European Antwerp, Belgium SRU Furnace 2022 Startup with Oxygen Enrichment
CITGO Petroleum Corporation Lemont Refinery, Illinois SRU WHB 2022 Refractory Evaluation
Flint Hills Refining Pine Bend Refinery WHB/Steam Drum 2022 Optimization and Replacement
Aramco Shedgum Gas Plant Thermal Stage 2022 Thermal Stage reliability
Petronor Brazil Thermal Stage 2022 Design review
Cenovus Energy Lima Refinery, Ohio Sulfur Pumps 2022 Troubleshooting
CITGO Petroleum Corporation Lemont Refinery, Illinois SRU Condenser 2021 Optimization Study
Energrean PLC Kavala, Greece SRU 2021 Co-firinng Study
Prime Oil and Gas Group Sweden WHB/Furnace/Incinerator 2021 Engineering & Design Support
Conoco Phillips Lost Cabin Gas Plant, Lysite, Wyoming SRU 2021 Startup and Shutdown Procedure Review
Dolphin Energy Ltd. Doha, Qatar Sulfur Pit 2021 Sulfur Pit Failure RCA/Redesign
Flint Hills Refining St. Paul, Minnesota SRU 2021 Unit Monitoring Project
BP America Inc. Toledo Refinery, Ohio Thermal Stage 2021 Bypass CFD Modeling
Saudi Aramco Yanbu Refinery Thermal Stage 2021 Refractory Study
Flint Hills Refining Corpus Christi Refinery, Texas SRU WHB 2021 WHB: Design and Project Support
Marathon Petroleum Galveston Bay Refinery SCOT and Condenser 2021 Exchanger CFD/Distributor Design
Petro Canada Lubricants Mississauga, Ontario, Canada SRU Lubricants Facility 2021 SO2 Reduction Study
Tri Innovations Ltd. Keyera Cheecham Wood Buffalo Alberta Sulfur Handling Facility 2020 SO2 calculations
Phillips 66 Ltd. Wood River Refinery, Roxana, Illinois SRU Burner/Chamber 2020 CFD Modeling Evaluation Optimization
Phillips 66 Ltd. Humber Refinery, South Killingholme, N. Lincolnshire WHB Inlet Distributor 2020 CFD Modeling Evaluation Optimization
Keyera Corporation Keyera Cheecham Wood Buffalo Alberta Sulfur Handling Facility 2020 Equipment sizing
Schlumberger Jurassic Production Facilities, Kuwait Burners/Condenser 2020 Evaluation & condenser corrosion issues
Phillips 66 Ltd. Wood River Refinery, Roxana, Illinois SRU Control Strategy 2020 O2 Enrichment
Keyera Corporation Keyera Cheecham Wood Buffalo Alberta Sulphur Pit 2020 Degassing Evaluation
Valero Port Arthur Refinery, Louisiana WHB 2020 Design
Valero Benicia Refinery, California Sulfur Pit 2020 Sweep Eductor Study
Dolphin Energy Ras Laffan, Qatar SRU 2019/20 Condenser tube failure RCA.
Marathon Petroleum Corporation Anacortes Refinery Degassing 2020 PDP: degassing unit.
Aramco Fadhili Gas Plant SRU 2019 SRU Burner Startup Assistance.
Chemtrade Anacortes Refinery Degassing 2019 Sulfur Degassing Package.
CNRL Horizon Gas Plant Amine/SRU/Degassing 2019 Training: on-site.
CRU Sulphur Conference Houston Training 2019 Training: Roundtable session chairman.
Dolphin Energy Ras Laffan, Qatar Degassing 2019 Study: Design & Operating Improvement.
Escambia Operating Co. LLC Big Escambia Creek Gas Plant SRU 2019 Turnaround Assistance.
Equinox Engineering Ltd. Pine River Gas Plant SRU 2019 Study: Technical review of reaction furnace.
Equinox Engineering Ltd. Pine River Gas Plant SRU 2019 Turnaround Assistance.
Flint Hills Refining Pine Bend Refinery SRU 2019 Study: WHB Thermal Evaluation.
Husky Energy Lima Refinery SRU 2019 Training: on-site.
Marathon Petroleum Corporation Anacortes Refinery SRU 2019 Study: Reliability Improvement.
Motiva Enterprises LLC Port Arthur Refinery SRU 2019 Study: Reliability Improvement.
NCOC (North Caspian Operating Co.) Kashagan, Kazakhstan SRU 2019 Sulfur Pit Inspection: on-site.
Phillips 66 Limited Wood Rivery Refinery SRU 2019 Study: Capacity Increase.
Phillips 66 Limited Humber Refinery, UK SRU 2019 WHB Thermal Evaluation.
YASREF Yanbu Refinery, Saudi Arabia SRU 2019 O2 Enrichment Training and Startup.
BP Cherry Point Refinery SRU 2018 Study: Capacity Increase.
BP Cherry Point Refinery SRU 2018 Study: Reliability Improvement.
Chevron El Segundo Refinery SRU 2018 Study: Reliability Improvement
CRU Sulphur Conference Gothenburg, Sweden Training 2018 Training: Roundtable session chairman.
Husky Energy Lima Refinery SRU 2018 Training: on-site.
Marathon Petroleum Corporation Garyville Refinery SRU 2018 Training: on-site.
Marathon Petroleum Corporation Martinez Refinery SRU 2018 Process Engineering Technical Support; WHB Startup.
NSRP (Nghi Son Refinery & Petrochemical) Nghi Son Complex, Vietnam SRU 2018 Startup Assistance.
BP Whiting Refinery Amine/SRU/Degassing 2017 Process Engineering Technical Support.
CNRL Horizon Gas Plant Degassing 2017 Study: Reliability.
CRU Sulphur Conference Abu Dhabi, UAE Training 2017 Training: Roundtable session chairman.
Matrix PDM Petronas, Malaysia SWS 2017 PDP review.
Vanguard Natural Resources Elk Basin Gas Plant SRU 2017 Study: Simulations for Future Capacity Increase.
Al Hosn Abu Dhabi SRU 2016 Study: Waste Heat Boiler review.
Citgo Corpus Christi SRU 2016 Study: WHB evaluation for oxygen-enriched operation.
CRU Sulphur Conference London, UK Training 2016 Training: Roundtable session chairman.
Delta Controls Shreveport Office Training 2016 Training: on-site.
Flint Hills Refining Pine Bend Refinery SRU 2016 Study: WHB and Thermal Condenser Reliability.
HPCL Mittal Energy Ltd (HMEL) Bathinda Refinery SRU 2016 PDP: Mid level oxygen enrichment retrofit.
Valero Energy Mareaux Refinery SRU 2016 Study: WHB evaluation for oxygen-enriched operation.
Valero Energy St. Charles Refinery SRU 2016 Study: WHB evaluation for oxygen-enriched operation.
Aramco Fadhili Gas Plant Amine/SRU/Degassing 2015 SRU complex design review.
Northern Tier Refining St. Paul Refinery SWS 2015 PDP SWS unit.
Rhourde Nouss Gas Plant Algeria Amine 2015 Study: Amine Unit performance evaluation.
Shell Canada Cansolv Montreal Office Training 2015 Training: on-site.
CNRL West Stoddart Gas Plant SRU 2014 Best Available Current Technology Study.
Coffeyville Resources Kansas SRU 2014 Study: Reliabilty Improvement (two trains).
Controls SouthEast Charlotte office Training 2014 Training: on-site.
Eagle Rock Escambia Creek Gas Plant SRU 2014 Study: Reliability Improvement.
HollyFrontier Navajo Refinery SRU 2014 Study: Processing SWS acid gas.
Regency Energy Keystone Gas Plant SRU 2014 Recycle blower mechanical review.
Samref Saudi Arabia SRU 2014 Design: Sulfur tank ejector system.
Valero Energy Mareaux Refinery SRU 2014 Study: Reliability Improvement.
Ecopetrol Barrancabermeja SRU 2013 Study: Capacity increase.
Kuwait Refining Kuwait Degassing 2013 Operating Manual.
Northern Tier Refining Minnesota Refinery Amine 2013 Study: amine unit optimization.
Preem Lysekil Refinery SRU 2013 Oxygen enrichment design review.
Ultramar Ltd Quebec City Refinery SRU 2013 Design: sulfur seal replacement/drawing review.
Vanguard Natural Resources Elk Basin Gas Plant SRU 2013 Study: Reliability Study Design: SRU modifications.
Aramco Yanbu Refinery Training 2012 Training: on-site.
Bangchak Petroleum Thailand SRU 2012 Study: Processing SWS acid gas.
Brimstone Vienna/Abu Dhabi/Vail 2012 Sulfur Symposium moderator. (2012 to present).
Flint Hills Refining Pine Bend Refinery Degassing 2012 Field Check out.
Montana Sulphur Billings Refinery Amine 2012 Study: Reliability Improvement.
New Zealand Refining Marsden Refinery Amine 2012 Design review.
OMV Vienna Refinery Amine 2012 Design review.
PTT Global MAP-TA-PHUT Amine 2012 Design review.
Toyo Engineering NW Refining SRUTGU 2012 Design review/HAZOP/LOPA.
Ultramar Ltd Quebec City Refinery SRU 2012 Study: Turndown operation.
ADGAS Abu Dhabi SRU 2011 Study: Reliability Improvement.
Aramco Berri Gas Plant Degassing 2011 PDP degassing unit.
Aramco Jazan Refinery 2011 Study: Oxygen-enrichment.
Barrick Energy Grande Prarie, AB SRU 2011 Study: Turndown operation.
BP Cherry Point Refinery SRU 2011 Study: Reliability Improvement.
CNRL Teepee Creek Gas Plant SRU 2011 Study: Capacity increase.
DCP Fullerton Gas Plant SRU 2011 Study: Sulfur Plant operation review.
ENAP Concon Refinery SRU 2011 Study: Waste Heat Boiler review.
Encana Ltd. Olds Gas Plant SRU 2011 Study: Reliability Improvement.
ENI Sanazzaro Refinery Degassing 2011 Study: Sulfur degassing troubleshooting.
Eurecat Houston Compled Facility 2011 Safety audit.
GALP Energia Porto Refinery SWS 2011 SWS Tank design.
Hovensa St. Croix Refinery SRU 2011 Study: SRU process optimization.
Keyera Energy Rimbey Gas Plant SRU 2011 Study: Turndown operation.
Keyera Energy Rimbey Gas Plant SRU 2011 Design: Equipment replacement design and vendor review.
Neste Oil Naantali Refinery SRU 2011 Study: Reliability Improvement.
SG Solutions Terre Haute SRU 2011 Sulphur handling system vent gas study.
Talisman Energy Edson Gas Plant SRU 2011 Study: Turndown operation.
Tebodin Energy Rabab Sulfur Recovery SRU 2011 Design: SRU and TGU.
Aramco Riyadh Refinery SRU 2010 Study: Oxygen-enrichment.
CNRL Fort McMurray Degassing 2010 PDP degassing unit, field checkout and operator training.
ConocoPhilips Trainer Refinery SRU 2010 Study: Sulfur Pit modification.
Devon Energy Wimborne Gas Plant SRU 2010 Design review. Equipment and valve specifications.
Husky Energy Prince George Refinery SRU 2010 Study: Capacity increase
KinderMorgan Montreal Refinery SRU 2010 Technical support: Due dilligence.
Marsulex Montreal Refinery SRU 2010 Study: Turndown operation.
Neste Oil Naantali Refinery SRU 2010 Turnaround assistance: startup.
Syncrude Energy Fort McMurray Degassing 2010 PDP degassing unit, HAZOP, operator training and field checkout.
TOTAL Natref Refinery SRU 2010 Study: Waste Heat Boiler review.
BP Pembina Gas Plant SRU 2009 Study: Capacity Increase.
BP Whiting Refinery Degassing 2009 PDP degassing unit.
BP Houston Office 2009 Sales: High level oxygen enrichment/Superclaus.
Chevron Carter Creek SRU 2009 Study: Reliabilty Improvement.
Citgo Lemont Refinery SRU 2009 Study: Oxygen-enrichment.
Elcogas Puertollano, Spain SRU 2009 Study: Reliability Improvement.
Hovensa St. Croix Refinery SRU 2009 Design: RGG burner.
Imperial Oil Nanticoke Refinery Degassing 2009 PDP degassing unit, field checkout.
PEMEX Salina Cruz Refinery SRU 2009 Field Check out/equipment design.
Petroplus Refining Coryton Refinery SWS 2009 Study: Reliability Improvement.
Seadrift Refining Victoria, TX SRU 2009 PDP: Amine, SRU, TGU HAZOP.
Shell Canada Scotford Refinery Degassing 2009 PDP degassing unit, HAZOP, operator training and field checkout.
STAR Petroleum SRU 2009 Study: Capacity increase
Sulex Anacortes Refinery Degassing 2009 PDP degassing unit.
Suncor Energy Fort McMurray SRU 2009 Procedure: new procedures and modification of existing.
Suncor Energy Denver Refinery Degassing 2009 PDP degassing unit.
Tamoil Energy Raffinerie du Sud-Ouest SWS 2009 Equipment design.
WBGC Biofuel Växjö Värnamo Biofuel Amine 2009 Design review. Cost estimate.
GASCO Habshan Gas Plant Degassing 2008 PDP degassing unit, HAZOP and field checkout.
Hovensa St. Croix Refinery SRU 2008 Turnaround asssistance: SRU 1/4
Nynas Refining Nynäshamn Refinery SRU/TGU 2008 Design review.
Petro-Hunt North Dakota SRU 2008 Study: Capacity Increase.
Petronas Melaka Refinery SRU 2008 PDP degassing unit, HAZOP, operator training and field checkout.
Suncor Energy Fort McMurray SRU 2008 Design: BMS, HAZOP and design review.
Ultramar Ltd Quebec City Refinery SRU 2008 Study: Turndown operation.
Chevron USA Carter Creek Gas Plant SRU 2007 Study: Turndown operation.
Chinook Energy SRU 2007 Study: Reliability Improvement.
Giant Refining Yorkton Refinery SWS 2007 SWS operating procedures.
PEMEX Cadereyta Refinery SRU 2007 Field Check out/reliability report.
PEMEX Minatitlan Refinery SRU 2007 Field Check out/reliability report.
Petronas Melaka Refinery SRU 2007 PDP Oxygen-enrichment, field checkout, operator training, start-up.
Suncor Energy Fort McMurray SRU 2007 Turnaround asssistance: SRU 4
Suncor Energy Fort McMurray SRU 2007 Design: Ammonia destruction system.
Ultramar Ltd Quebec City Refinery SRU 2007 Study: Capacity increase.
AK Steel Kentucky Steel Plant SRU 2006 Study: Reliability Improvement.
Aramco Uthmaniyah Gas Plant SRU 2006 Study: Sulfur recovery upgrade.
Delek Refining Tyler Refinery SRU 2006 Study: Capacity increase.
Hovensa St. Croix Refinery SRU 2006 Study: Reliability Improvement SRU 1/2
PEMEX Tula Refinery SRU 2006 Field Check out/equipment design.
Sulconam Montreal Refinery SRU 2006 Performance Test evaluation.
Suncor Energy Fort McMurray SRU 2006 Study: Reliability Improvement.
Aramco Shedgum Gas Plant SRU 2005 Study: Sulfur recovery upgrade.
Delek Refining Tyler Refinery SRU 2005 Study: Sulfur Plant operation review.
Giant Refining Yorkton Refinery Amine 2005 Amine operating procedures.
Hovensa St. Croix Refinery SRU 2005 Study: Reliability Improvement SRU 3/4. Turnaround assistance.
Hunt Refining Tuscalosa Refinery SRU 2005 PDP review.
Hunt Refining Tuscalosa Refinery TGU 2005 PDP review.
NPRA Sulfur Session Training 2005 Session Chairman.
Petrozuata San Jose Refinery SRU 2005 PDP Oxygen-enrichment, field checkout, operator training, start-up.
Suncor Energy Fort McMurray SRU 2005 Procedure: new procedures and modification of existing.
Suncor Energy Fort McMurray SWS 2005 Study: Optimization.
Central Alberta Midstream K3 Gas Plant SRU 2004 Study: Reliabilty Improvement.
Duke Energy Artesia Gas Plant SRU 2004 SRU: Equipment design.
Giant Refining Yorkton Refinery SRU 2004 PDP: SRU and TGU design.
Hunt Refining Tuscalosa Refinery SWS 2004 PDP review.
Imperial Oil Redwater Gas Plant SRU 2004 Study: Turndown operation.
NIGC Khanigiran Gas Plant SRU 2004 Design: Thermal stage PDP.
NIS Pancevo Refinery Degassing 2004 PDP degassing unit.
Petrobras Sao Paulo Refinery SRU/TGU 2004 Design review.
Petronor SRU 2004 Oxygen enrichment design review.
Suncor Energy Denver Refinery SRU 2004 Operating procedure review/sulfur tank vent study.
TOTAL Lindsey Oil Refining SRU 2004 Turnaround asssistance/SRU inspection.
Ultramar Ltd Quebec City Refinery SRU 2004 Study: Capacity increase.
PetroCanada Oakville Refinery Degassing 2003 PDP degassing unit.
PetroCanada Oakville Refinery SRU 2003 Study: Capacity Increase.
Sulconam Montreal Refinery SRU 2003 Study: Capacity increase
Suncor Energy Simonette Gas Plant SRU 2003 Study: Turndown operation.
KPBR Qatar SRU 2002 Study: Capacity increase.
Marathon Oil Robinson Refinery Amine 2002 Study: Reliability Study
Marsulex Montreal Refinery SRU 2002 Study: Sulfur recovery upgrade.
PennWest Buck Lake Gas Plant SRU 2002 Study: Reliability Improvement.
QAPCO Mesaieed, Qatar SRU 2002 Study: Reliability Improvement.
Sulconam Montreal Refinery SRU 2002 Study: Capacity increase
Tengizchevroil Kazakstan Degassing 2002 PDP degassing unit.
Ultramar Ltd Quebec City Refinery Degassing 2002 PDP degassing unit.
Shell Venezuela Mararcaibo Gas Plant SRU 2001 Study: Reliability Improvement.
Statoil Norway Amine 2001 Study: Amine Unit performance evaluation.
Sulconam Montreal Refinery Amine 2001 Study: Capacity increase
Suncor Energy Fort McMurray Degassing 2001 PDP degassing unit, HAZOP, operator training and field checkout.
Tessenderlo Ponca City Refinery Degassing 2001 PDP degassing unit.
Ultramar Ltd Quebec City Refinery SRU 2001 Study: Processing SWS acid gas.
Rockland Pipeline Buffalo, TX SRU 2000 PDP: Amine, SRU, HAZOP, field checkout, operator training, commissioning.
PetroCanada Mississauga Refinery SRU 1999 PDP: SWS acid gas feed retrofit.
Montana Sulphur Billings Refinery SRU 1998 PDP Superclaus Unit, field checkout, operator training, start-up.
Sulconam Montreal Refinery Degassing 1996 PDP degassing unit, HAZOP, operator training and field checkout.