Thermal Oil Heater for CPO Storage Tank

Efficient Heating Solution for Crude Palm Oil

A Thermal Oil Heater (TOH) is one of the most effective heating systems for Crude Palm Oil (CPO) storage tanks. The system circulates high-temperature thermal oil through heating coils installed inside the storage tank, maintaining the CPO at the required temperature without direct contact between the heating medium and the product.

Unlike steam systems, a Thermal Oil Heater can provide temperatures up to 350°C while operating at relatively low pressure, resulting in safer operation, higher efficiency, lower maintenance, and stable temperature control.

Why Heating is Required for CPO Storage Tanks

Crude Palm Oil naturally becomes more viscous as its temperature decreases. If the temperature falls below approximately 45–50°C, the oil begins to solidify, making pumping and unloading difficult.

A Thermal Oil Heater maintains the CPO at an optimal storage temperature of:

Maintaining these temperatures helps:

• Prevent CPO solidification
• Reduce viscosity
• Improve pumping efficiency
• Minimize energy consumption
• Maintain product quality
• Prevent production downtime

How the System Works

Thermal Oil Heater
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Circulation Pump
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Supply Header
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Heating Coil Inside CPO Tank
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Heat Transfer to CPO
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Return Header
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Thermal Oil Heater

Advantages over Steam Boiler

Typical Applications

A Thermal Oil Heater is widely used for:

• CPO Storage Tanks
• Palm Oil Refinery
• Palm Kernel Oil (PKO)
• Olein Storage Tanks
• Stearin Storage Tanks
• Fat and Oil Processing
• Biodiesel Plants
• Edible Oil Manufacturing

Recommended Capacity

The heater capacity depends on:

• Tank volume (10–5,000 m³)
• Initial CPO temperature
• Desired storage temperature
• Ambient conditions
• Insulation quality
• Heating time requirement

Typical capacities include:

Final sizing should be based on a detailed heat-load calculation considering tank dimensions, insulation, operating conditions, and required heating time.

Key Benefits

• High thermal efficiency
• Uniform heat distribution
• Low operating pressure
• Precise automatic temperature control
• Reduced operating costs
• Safe and reliable operation
• Long equipment service life
• Suitable for continuous industrial operation
• Ideal for palm oil storage and processing facilities

PT Indira Mitra Boiler – BEJO Thermal Oil Heater

BEJO Thermal Oil Heater systems are engineered for reliable heating of CPO storage tanks and palm oil processing facilities. Available with diesel, natural gas, LPG, biomass, or electric heating options, each system is designed to deliver efficient heat transfer, stable temperature control, and dependable long-term operation for the palm oil industry.

Applications:

• CPO Storage Tank Heating
• Palm Oil Mill
• Palm Oil Refinery
• Biodiesel Plant
• Edible Oil Industry
• Tank Farm Heating System
• Heat Tracing System
• Bulk Oil Storage Facilities

Case Study: Thermal Oil Heater for a 100-Ton CPO Storage Tank

Project Overview

A palm oil processing plant requires a heating system to maintain the temperature of 100 tons of Crude Palm Oil (CPO) stored in a storage tank. The objective is to keep the CPO at the ideal temperature for pumping and processing while minimizing energy consumption and maintenance costs.

Design Data

Heat Load Calculation

Formula:

Q=m×Cp×ΔTQ = m \times C_p \times \Delta TQ=m×Cp​×ΔT

Where:

• m = 100,000 kg
• Cp = 0.5 kcal/kg°C
• ΔT = 20°C

Calculation:

$$Q=100,000\times 0.5\times 20$$ $$Q=1,000,000\text{kcal}$$

Total energy required:

1,000,000 kcal

Required Heater Capacity

Heating time:

4 Hours

1,000,0004=250,000 kcal/hr\frac{1,000,000}{4}=250,000\ \text{kcal/hr}41,000,000​=250,000 kcal/hr

Considering heat losses of approximately 20%:

$$250,000\times 1.2=300,000\text{kcal/hr}$$

Recommended Thermal Oil Heater

Capacity: 300,000 kcal/hr

Equivalent power:

$$300,000÷860=349\text{kW}$$

Recommended Heater Output: approximately 350 kW

Recommended System Configuration

Operating Principle

1. The Thermal Oil Heater heats the thermal oil to approximately 180–220°C.
2. The circulation pump continuously delivers the hot oil to the heating coil installed inside the CPO storage tank.
3. Heat is transferred through the coil walls to the CPO.
4. As the CPO reaches 50–55°C, its viscosity decreases, allowing efficient pumping and transfer.
5. The cooled thermal oil returns to the heater, where it is reheated, forming a continuous closed-loop circulation system.

Results

After installing a 300,000 kcal/hr Thermal Oil Heater, the palm oil facility achieved:

• Stable CPO storage temperature between 50–55°C
• Faster unloading and transfer operations
• Lower pumping energy due to reduced oil viscosity
• No steam losses or condensate recovery requirements
• Lower maintenance compared with a conventional steam boiler
• Improved overall thermal efficiency
• Reduced fuel consumption through precise temperature control

Why Thermal Oil Heater Instead of Steam Boiler?

Conclusion

For a 100-ton CPO storage tank, a 300,000 kcal/hr (≈350 kW) Thermal Oil Heater is a practical solution to maintain CPO at 50–55°C under the stated design conditions. The system provides uniform heating, low-pressure operation, excellent energy efficiency, and reliable long-term performance, making it well suited for palm oil mills, refineries, biodiesel plants, and bulk CPO storage facilities.

Note: This example is intended as a preliminary engineering study. The final heater capacity should be verified based on the actual tank dimensions, insulation quality, ambient conditions, heating coil design, operating schedule, and desired heating time.