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Wuxi Yiteng Pressure Vessel Co, Ltd.
Add：No 58, Zhenyang Road, Qingyang Town, Jiangyin, Jiangsu
Contacts：Mr. Zhang
Tel：13506192042
Fax：0510-86557866
Website：www.yitengrq.com
E-mail：wxzhangyaodong@163.com / yeekai@yitengrq.com

Kettle Reboiler

Technical Specifications of Kettle Reboiler

The Kettle Reboiler is a specialized vaporization device for distillation column systems, utilizing immersion heating for liquid-phase boiling. It is widely used in petrochemical, fine chemical, and pharmaceutical industries for large-scale vaporization processes. Below are its core technical parameters:

1. Key Technical Parameters

Parameter	Typical Value/Range	Remarks
Design Standard	ASME VIII Div.1 / TEMA K / GB 151	High-pressure vessel standards
Heat Transfer Area	50~2000 m²	Custom sizes available
Design Pressure (Shell Side)	0.5~6.0 Mpa (5~60 bar)	High-pressure models up to 10 Mpa
Design Temperature	-50°C to +400°C	High-temperature models up to 450°C
Shell Material	Carbon Steel (Q345R) / SS304 / SS316L / Clad Plate	Corrosion-resistant options
Tube Bundle Material	SS304 / SS316L / 2205 Duplex / Titanium	Anti-erosion design
Tube Diameter/Length	Φ19~Φ50 mm / 3~12 m	U-tube/straight tube options
Heat Source	Steam / Thermal Oil / Molten Salt / Electric Heating	Multi-energy compatibility
Vaporization Rate	30%~100%	Adjustable per column demand
Level Control	Auto-level gauge + control valve	Dry-run protection
Vapor Space Height	≥0.5×Shell Diameter	Ensures vapor-liquid separation
Connection Standard	ANSI / DIN / GB Flanges	DN150~DN800

2. Structural Features

o Large Shell Volume – Provides a stable boiling zone to prevent flash evaporation.
o Immersion Heating – Tube bundle fully submerged for high vaporization efficiency.
o Vapor-Liquid Separation – Top-mounted demister minimizes liquid entrainment.
o Removable Tube Bundle – U-tube or straight-tube design for easy maintenance.

3. Typical Applications

o Petroleum Distillation: Crude oil atmospheric/vacuum distillation, catalytic cracking
o Chemical Separation: Methanol/ethanol distillation, ethylene cracking
o Pharmaceutical Concentration: Solvent recovery, extract evaporation
o Desalination: Multi-effect distillation (MED) systems

4. Data Required for Selection

o 1.Process Requirements: Vaporization rate (kg/h), inlet/outlet temperatures, operating pressure.
o 2.Fluid Properties: Composition, viscosity, boiling point, corrosiveness (e.g., Cl⁻, H₂S).
o 3.Heat Source: Steam pressure/temperature or thermal oil flow rate.
o 4.Separation Requirements: Vapor purity (e.g., ≤0.1% liquid entrainment).

5. Advantages

o High Vaporization Efficiency – Large liquid-phase contact area avoids local overheating.
o Stable Operation – Wide liquid level control range (30%~100% load).
o Long Service Life – Anti-fouling design, maintenance interval >12 months.
o Safety Redundancy – Overpressure relief (rupture disc) + low-level interlock.

6. Comparison with Other Reboilers

Feature	Kettle Reboiler	Thermosiphon Reboiler	Forced Circulation Reboiler
Driving Force	Natural convection (immersion)	Thermosiphon effect	Pump-driven circulation
Vaporization Rate	30%~100%	10%~30%	Adjustable (pump-dependent)
Footprint	Large	Medium	Compact
Typical Use	Large distillation columns (e.g., crude oil)	Small/medium columns	High-viscosity fluids

Note: Kettle reboilers require customization based on column process data. Provide process package parameters (e.g., NTS datasheet) for precise design!