Product Description
Engineered directly at our 13,800+ square meter heavy manufacturing base in Jingjiang, our Fractionator Bottom Reboiler Furnace is a custom-engineered, heavy-duty tubular process heater designed to supply precise, uniform thermal reboil energy to atmospheric and vacuum fractionating towers, hydrocracking strippers, and chemical distillation columns. Drawing upon our 26 years of specialized fabrication experience serving global refining leaders such as Sinopec, CNPC, and CNOOC, we build each Fractionator Bottom Reboiler Furnace to eliminate bottom-stream coking and local tube overheating when handling heavy, heat-sensitive hydrocarbons. By balancing radiant-convection heat transfer ratios and integrating advanced waste-heat recovery systems, this fired heater achieves exceptional thermal efficiencies exceeding 91%, providing refinery operators and international EPC contractors with a robust, uninterrupted heating core engineered for severe continuous-duty service.
Applications
Refinery Hydroprocessing & Hydrocracking Fractionation: Serving as the bottom reboiler for product fractionator columns to re-vaporize diesel, kerosene, and heavy naphtha streams.
Atmospheric & Vacuum Distillation Units (CDU/VDU): Supplying stripping reboil heat for column bottoms, side-strippers, and vacuum tower circulation loops.
Aromatics & Petrochemical Separation: Delivering precise, regulated heat input to reformate splitters, benzene-toluene-xylene (BTX) distillation columns, and solvent recovery towers.
Residue Hydrotreating & Delayed Coking Plants: Handling heavy cycle oil and bottoms circulation where uniform heat flux is critical to prevent tube skin fouling and coke formation.
Technical Specifications
|
Design & Fabrication Codes |
ASME Section VIII Div. 1, ASME B31.3, API 560 / ISO 13705, Class A Boiler / Pressure Vessel Standard |
|
Design Thermal Duty |
5 MW to 85 MW (Custom-sized per process simulation) |
|
Thermal Efficiency |
90% – 93% (Equipped with air preheater or convection steam generation coil) |
|
Radiant Coil Material |
ASTM A106-B, A335 P5 / P9 / P11, TP304H / TP316L / TP321 (Centrifugally cast or seamless alloy tubes) |
|
Convection Section |
Bare tubes plus high-frequency resistance-welded solid/serrated finned tubes |
|
Design Pressure Range |
Up to 10.0 MPa (Gauged to specific fractionator operating profiles) |
|
Design Temperature Range |
Process fluid outlet up to 420°C; Radiant tube skin design up to 650°C |
|
Combustion Configuration |
Low-NOx floor-mounted or wall-mounted staged-combustion burners (Fuel gas / Refinery off-gas fired) |
|
Structural Casing |
5mm–6mm reinforced structural carbon steel with seal-welded gastight construction |
Quality Control
Certified International Accreditations: Manufactured under ASME "U" and "S" stamps, ISO 3834-2 International Welding Quality System, ISO 9001:2015, and Class A2/A1 pressure vessel manufacturing licenses.
Component-Level QR Code Traceability: Every furnace tube, forged return bend, intermediate tube sheet, and pressure fitting is tracked through raw material mill certificates, heat numbers, and inspection records via an individual QR tracking code.
100% Comprehensive Factory Inspection: Full radiographical testing (RT), ultrasonic testing (UT), magnetic particle testing (MT), positive material identification (PMI), and hydrostatic pressure testing before casing closure and paint application.
Third-Party Acceptance: Regular, seamless coordination with Bureau Veritas, DNV, SGS, TÜV, and client-appointed third-party inspectors for hold-point and pre-shipment inspections.
Standard Heavy-Duty Export Packaging: Handled by certified international packing partners using sea-worthy steel transit cradles, moisture-barrier wrapping, and robust internal bracing to prevent dimensional warping during long-distance ocean freight.
FAQ
Q: What is the typical production lead time for a custom-built process reboiler heater?
A: For customized equipment of this scale, our production cycle is typically 4 to 6 months following technical drawing sign-off and material freezing. Repeat orders or standard sub-assemblies can be completed within approximately 3 months.
Q: How do you support our project milestones and monitor fabrication progress?
A: Every project is assigned a dedicated Project Manager and Technical Manager. We issue detailed fabrication schedules, hold weekly coordination meetings, and provide real-time photographic and video inspection updates covering raw material preparation, coil welding, NDT, and shop trial assembly.
Q: What warranty and after-sales coverage do you provide to overseas buyers?
A: We provide a comprehensive warranty covering 18 months from site delivery or 12 months from commercial startup (whichever occurs first). Our engineering team offers responsive technical support and dispatch-ready troubleshooting for smooth installation and commissioning.
Q: What commercial terms and payment structures do you support for international contracts?
A: We operate under standard Incoterms including EXW and FOB (shipping via major Yangtze River and Shanghai port terminals). For custom manufacturing projects, our standard commercial terms are 30% advance deposit, 40% in-process milestone payment upon fabrication inspection, and 30% final balance prior to shipment. We accept settlement in USD, EUR, and RMB.
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