Cooling System

In the industrial palm oil fractionation process, the cooling system can provide stable, controllable, and energy-efficient temperature regulation for the crystallization process. Next, Henan Glory will present to you the cooling system used in our palm oil fractionation equipment.

Working Principle

Our cooling system, specifically designed for palm oil fractionation, operates based on the principle of indirect heat exchange. The system consists of two chiller tanks, a chiller unit, and water cooling coils situated within the crystallization tanks.

Through these water cooled coils, heat is transferred from the refined palm oil to a circulating cooling medium—specifically cooling water or chilled water—thereby enabling precise control over the crystallization temperature of the refined oil, in accordance with the client's specific requirements for the palm oil fractionation process.

Chiller tank

Two-Stage Cooling Process

Given that the operating costs for chilled water typically exceed those of cooling water, we generally recommend that clients prioritize the use of cooling water for preliminary cooling, followed by the utilization of chilled water for secondary cooling. This approach is more energy-efficient and effectively reduces the client's operating costs.

Pre-Cooling Stage: Circulating Cooling Water Cooling

This stage uses circulating cooling water supplied by the chiller tank as the primary cooling medium. A pump conveys high-temperature refined palm oil—preheated to a temperature exceeding 60°C and fully liquefied—into a crystallization tank; utilizing the built-in water cooling coil, cooling water indirectly reduces the oil temperature to between 30°C and 40°C.

Water cooling coil

Deep Cooling Stage: Chilled Water Cooling

Upon completion of the pre-cooling phase, the heated cooling water flows back to the chiller tank for preliminary cooling. It then passes through a chiller unit to become chilled water (5°C–7°C), which serves as the cooling medium for the secondary cooling stage, further reducing the oil temperature to the setpoint (typically around 20°C, though the specific value can be flexibly adjusted according to production requirements).

When the oil temperature reaches the set target value, the cooling operation ceases. Subsequently, the crystallization tank enters the crystal growth phase.

Chiller unit

Key Features

(1) High Efficiency & Low Energy Consumption

The two-stage cooling design maximizes the use of low-cost circulating cooling water in the pre-cooling stage, which can reduce the operating load of the chiller unit. The spiral water cooling coil structure improves the overall heat exchange efficiency, further reducing the energy consumption of the system and the long-term operating costs for customers.

(2) High Precision Temperature Control

The system employs a PLC control system, which can achieve precise and controllable cooling of refined palm oil according to preset process parameters and automatically adjust the flow rate of the cooling medium in real time. This provides the most suitable ambient temperature for stable crystal growth within the crystallization tanks.

(3) Customizable Capability

We can provide customized cooling system solutions according to the customer's production scale, process requirements, and final product indicators. For example, the capacity of chiller tanks, the configuration of water cooling coils (such as coil diameter, pitch, and material), as well as the temperature setpoints for the cooling stage, can all be flexibly designed.

At Henan Glory, we are committed to providing global customers with efficient, environmentally friendly, and cost-effective palm oil processing solutions. Whether you are building a new palm oil fractionation plant or upgrading your current cooling system, a customized solution awaits you. Simply share your requirements with us at any time by filling out the message form below.