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PTNN Tubular Furnaces for Oil Heating

Technical Specifications

PTNN Tubular Furnaces are high-performance process heaters designed for the controlled heating of crude oil, oil emulsions, hydrocarbons, and petroleum products in upstream, midstream, and downstream oil & gas facilities.

The furnace heats the process fluid through a tubular heating coil using combustion gases generated by gas or liquid fuel burners. Depending on process requirements, PTNN furnaces can be supplied in direct-fired or indirect-heating configurations.

Standard Technical Parameters Parameter Specification Model PTNN Series Application Crude Oil, Oil Emulsion, Petroleum Products & Hydrocarbon Fluids Heating Method Direct Fired / Indirect Heating with Intermediate Heat Transfer Fluid Nominal Thermal Capacity 800 – 5,000 kW* Process Flow Rate Up to 225 m³/h* Design / Operating Pressure 1.6 – 16 MPa* Inlet Temperature Typically 5°C* Outlet Temperature Typically up to 80°C* Fuel Type Natural Gas / Fuel Oil / Diesel or Other Liquid Fuels Burner Type Industrial Gas or Liquid-Fuel Burner Heating Coil Carbon Steel / Alloy Steel, as per process design Coil Configuration Single or Multiple Passes Number of Passes 1 – 5 or as required Control System PLC-Based Automatic Control System HMI Touchscreen Operator Interface Temperature Control Automatic Process Temperature Control Safety System Flame Monitoring, Emergency Shutdown & Interlocks Draft System Natural / Forced / Induced Draft, according to design Thermal Efficiency Up to 90%* Design Life Typically 15 years* Installation Skid-Mounted / Field-Assembled Customization Available according to Client Process Requirements

Main Components PTNN Tubular Furnaces can be supplied as a complete engineered package including: Radiant and convection heating sections Process heating coil Industrial burners Burner management system Fuel gas / fuel oil train Combustion air system Refractory lining and thermal insulation Flue gas duct and stack Temperature and pressure instrumentation PLC-based control system HMI touchscreen panel Flame detection and monitoring system Emergency shutdown system Process inlet and outlet manifolds Access platforms, ladders and maintenance structures Skid or structural support system

Design & Performance The furnace is engineered to provide uniform and controlled heat transfer while maintaining the required process temperature and preventing excessive tube-wall temperatures. The heating coil is designed according to the required process flow rate, pressure, fluid properties, inlet and outlet temperatures, allowable pressure drop, heat duty, and fuel characteristics. Multiple-pass coil configurations can be provided to achieve the required residence time and heat-transfer performance.

Fuel & Burner Options Depending on project requirements, PTNN furnaces can be equipped with: Natural gas burners Associated petroleum gas (APG) burners Fuel oil burners Diesel-fuel burners Dual-fuel burners Dual-fuel configurations can be provided where operational flexibility and fuel availability are important.

Automation & Control The PTNN furnace can be equipped with a PLC-based control and monitoring system for continuous supervision of critical operating parameters. The automation system may monitor and control: Process inlet temperature Process outlet temperature Process pressure Fuel pressure Fuel flow Combustion air flow Furnace temperature Stack temperature Flame status Burner operation Emergency shutdown conditions The system can automatically regulate the firing rate to maintain the required process outlet temperature.

Safety Features The furnace package incorporates safety and protection systems designed for reliable operation in demanding Oil & Gas environments. Typical safety functions include: Flame failure protection Burner ignition monitoring High-temperature shutdown High/low fuel pressure protection Low combustion-air protection Emergency shutdown (ESD) Fuel shut-off valves Furnace pressure monitoring Process over-temperature protection Burner management system (BMS) Alarm and fault indication

Typical Applications PTNN Tubular Furnaces are suitable for: Crude oil heating Oil gathering and processing facilities Central Processing Facilities (CPF) Oil dehydration units Oil stabilization units Oil pumping stations Tank farm heating systems Petroleum product heating Hydrocarbon processing facilities Oil & Gas production facilities Refinery and petrochemical applications

Engineering & Customization Each PTNN furnace can be engineered according to the specific requirements of the project. The final design may be customized based on: Required heat duty Process flow rate Fluid composition Inlet and outlet temperature Operating and design pressure Fuel type and availability Ambient temperature Installation elevation Emission requirements Applicable international and local standards Hazardous-area classification Client specifications

Typical Design Range Thermal Capacity: 800 – 5,000 kW Process Capacity: Up to 225 m³/h Process Pressure: 1.6 – 16 MPa Fuel: Natural Gas / Liquid Fuel Heating: Direct Fired / Indirect Control: PLC + HMI