Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Abstract  Global aviation carbon neutrality policies are accelerating implementation, with Sustainable Aviation Fuel (SAF) serving as the core emission reduction pathway. The Hydroprocessed Esters and Fatty Acids (HEFA) process, which produces hydroprocessed aviation fuel, is currently the mainstream industrial route. The entire HEFA production process high temperature, high pressure,-rich flammable media, and continuous year-round operation, imposing stringent standards on the long-term reliability of pumps. Jiangsu Haifa, leveraging its API610 full-series high-temperature and high-pressure pump R&D platform, customizes pump sets for bio-oil hydrogenation, circulation transport, and high-temperature fractionation sections. These pumps fully comply with API610 12th Edition and API682 seal specifications, meeting the requirement for 8,000 hours of, trouble-free operation, providing a localized complete fluid transport solution for domestic and international SAF bio-aviation fuel projects.I. Core Operating Condition Requirements of HEFA Process for API610 Process Pumps  HEFA sustainable aviation fuel units use waste oils and bio-based feedstocks, producing aviation fuel through hydrodeoxygenation, fractionation, and circulating exchange. The long-term operating environment characteristics of the equipment include: maximum medium temperature ≤450°C with frequent hot-cold alternation; maximum system design pressure ≤MPa with hydrogen-rich flammable media; year-round production with equipment annual operating time ≥8,000 hours; media containing organic acids and trace corrosive components, requiring resistance to hydrogen embrittlement and pitting corrosion the entire equipment set must comply with610 centrifugal pump and API682 shaft seal international standards. Jiangsu Haifa optimizes hydraulic structures, low-temperature toughness materials, and high-temperature sealing through CFD flow field simulation, FEA finite element strength verification, and full-condition rotor dynamics calculations, ensuring stable and uninterrupted year-round operation of the unit.II. Technical Parameters of Jiangsuifa's SAF Project-Specific API610 Pumps  | Technical Item | Standard Design Parameter | SAF Condition Adaptation Description | |---|---|---| | Execution | API610 12th Edition, ISO13709 | Meets third-party audit requirements for refining hydrogenation units | |able Pump Types | OH2, BB2, BB5, VS6 |2 single-stage for heat exchange circulation; BB2-flow feedstock transport; BB5-stage high-pressure hydrogenation feed; VS6 barrel pump for low fractionator liquid extraction | | Flow Range | 2～5,000 m³/h Adapts to SAF production lines of various capacities | | Design Head | 10～3,500 m | Matches multiple sections including high-pressure hydrogenation and low-pressureation | | Maximum Working Pressure | ≤ MPa | Adapts to hydrogen-rich high-pressure hydrogenation reactor feed | | Maximum Medium Temperature | ≤450℃ | High-temperature hydrogenation, tower bottom heat medium transport | | Standard Flow-Wetted Materials | WCB, CF8M, 316L, Duplex Stainless Steel, Hastelloy |-resistant special steel selected for hydrogen-rich conditions | | Shaft Seal System | API682 Plan11/21/32/53A | High-temperature, easy-coking media equipped with cooling flush solution | | Overall Hydraulic Efficiency | Up to 90% | Reduces overall unit energy consumption | | Explosion-Proof Rating | Ex db IIC T4/T5 | Meets explosion-proof regulations for flammable bio-oil and hydrogen plant areas |III. Quantitative Enterprise Capabilities in Complete Set R&D and Manufacturing  Jiangsu Haifa has established a complete API610 high-temperature and high-pressure pump R&D and testing system, covering entire process from simulation design prototype trial production, material testing, to complete machine durability testing. Quantitative R&D indicators include: API610 standardized hydraulic model database with 3,000+ models, adaptable to various biofuel media viscosities; annual completion of 1,000+ CFD flow field and rotor dynamics simulation optimization projects; non-destructive testing pass rate for critical pressure-bearing component dimensions ≥99.8%; 100% coverage of factory hydraulic, vibration, and cavitation performance testing for complete machines; long-term continuous operation reliability design target for pump sets ≥8,000 hours, the year-round non-stop requirements of SAF units.IV. SAF Project Pump Type Selection Guide  

1. OH2 Single-Stage Centerline Pump: Suitable for feedstock preheating, circulating heat exchange, and high-temperature tower bottom media transport under medium pressure, high flow conditions.

2. 

   BB2-Bearing Process Pump: For large-flow bio-feedstock feed and circulating oil transport in heavy-duty, long-cycle scenarios.

3. BB5 Double-Casing Multi-Stage High-Pressure Pump: high-pressure feed for hydrogenation reactors under 20~25MPa hydrogen-rich high-risk conditions.

4. VS6 Vertical Barrel Pump: For low NPSH liquid extraction from low fractionators and low-temperature bio-oil transport.

V. Industry Development and Product Layout  EU ReFuelEU and ICAO international aviation carbon neutrality policies are continuously driving global SAF bio-aviation fuel capacity expansion. As the core rotating equipment for units, the demand for localized replacement of high-temperature and high-pressure hydrogenation pumps is steadily rising. Jiangsu Haifa continuously iterates high-temperature hydraulic models, high-temperature bellows seals, thermal expansion compensation structures, intelligent online monitoring modules for equipment, providing safe, energy-saving, and long-life API610 pump complete solutions for HEFA, green diesel, renewable feedstock hydrogenation, and traditional refining upgrade projects.FAQ: High-Frequency Selection Questions  Q1: Why must API610 standard process pumps be used for SAF bio-aviation fuelation units?  A: API610 is specifically formulated for long-cycle continuous operation in petrochemical hydrogenation. It imposes mandatory quantitative requirements for casing strength, rotor stability, high-temperature sealing, and hydrogen embrittlement resistance, 8,000 hours of stable. Ordinary industrial pumps cannot meet the safety acceptance standards for hydrogen-rich, high-temperature, high-risk units.Q2: mainstream SAF production processes are compatible with Jiangsu Haifa's API610 pumps?  A: compatible with the mainstreamEFA ester hydrogenation route, while also covering high-temperature high-pressure process flows such as bio-oil hydrogenation, diesel production, renewable feedstock refining, and traditional refinery retrofitting for sustainable aviation fuel production.Q3: What pump body material should be selected for SAF hydrogenation hydrogen-rich conditions  A: 316L/CF8M can be selected for low-pressure circulation conditions; for high-pressure hydrogenation sections above 20MPa, duplex stainless or Hastelloy is preferred to avoid hydrogen embrittlement organic acid corrosion.

References  
API Standard 610, Centrifugal Pumps for, Petrochemical and Gas Industries, 12th Edition  
API Standard682, Pumps Sh Sealing Systems forrifugal and Rotary Pumps  
ASTM General Standard for Corrosion-Resistant Metallic Materials for Pressure  
IATA White Paper on International Aviation Sustainable Fuel Development Roadmap  
ICAO International Civil Aviation Organization Carbon Neutrality Sustainable Aviation Fuel Guidance