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Thailand Renewable Energy Enterprise | Rotary Tube Furnace for Biomass Pyrolysis

Time：2026-05-19

1. Core Demand

A Thailand-based renewable energy environmental technology enterprise focuses on the resource utilization of agricultural and forestry waste. The company’s core objective was to develop an efficient, continuous biomass pyrolysis process. Traditional pyrolysis technologies presented three major pain points:

1.1 Uneven material heating: Fixed-bed processes frequently suffered from local overheating and incomplete pyrolysis, leading to low product conversion rates and tar blockages in pipelines.
1.2 Low production efficiency: Batch operations could not meet the demands of large-scale processing, while manual loading and unloading created dust pollution and safety hazards.
1.3 Insufficient process flexibility: It was difficult to precisely control pyrolysis temperature, atmosphere, and residence time, making it challenging to optimize parameters for diverse feedstocks such as straw, wood chips, and nut shells.

The enterprise urgently required a continuously operating rotary tube furnace with uniform temperature distribution and controlled atmosphere to enable efficient biomass pyrolysis for high-quality biochar, bio-oil, and syngas production, while reducing energy consumption and maintenance costs.

2. Customized Solution

Tailored to the customer’s process challenges and large-scale production requirements, we provided a custom continuous rotary tube furnace dedicated to biomass pyrolysis, specifically addressing the core difficulties in the pyrolysis process:

2.1 Uniform Heating and High-Efficiency Pyrolysis Design
Equipped with an inclined rotary quartz/alumina tube, featuring adjustable rotation speed (0.5-10 rpm). Continuous tumbling ensures dynamic, uniform heating of biomass materials, eliminating local overheating issues and boosting the pyrolysis conversion rate to over 95%.
Multi-zone independent temperature control system (max. working temperature up to 1100℃), simulating the full process of drying, pyrolysis, and carbonization of biomass. With a temperature control accuracy of ±1℃, it meets the temperature gradient requirements of different stages.
Modular heating zone design supports expanding the number of zones according to process needs, adapting to longer material residence times and improving the stability of pyrolysis product quality.

2.2 Continuous Production and Sealed Atmosphere System
Integrated with automatic feeding and continuous discharging mechanisms, enabling enclosed conveying of biomass feedstocks. This prevents ambient air from entering and affecting the pyrolysis atmosphere, while eliminating dust leakage.
Adopts a multi-stage dynamic sealing structure paired with an inert gas protection system, enabling low-oxygen/oxygen-free pyrolysis under nitrogen or argon atmosphere. This suppresses side reactions and enhances the purity of bio-oil and biochar.
The fully enclosed pipeline design can directly connect to subsequent condensation and recovery systems, allowing simultaneous collection of pyrolysis products and reducing material loss and safety risks.

2.3 Intelligent Control and Safety Assurance
Features a PLC + touch screen control system, enabling real-time monitoring of furnace temperature, rotation speed, atmosphere pressure, and material flow. Multiple sets of pyrolysis process parameters can be preset and recalled with one click, supporting process optimization for different feedstocks.
Equipped with multiple safety devices including over-temperature alarms, gas cutoff protection, and abnormal pressure alarms. Additionally, tar cleaning and anti-clogging structures are incorporated to reduce maintenance difficulty and ensure stable continuous operation.

3. Customer Feedback
After delivery and commissioning, the customer confirmed that the rotary tube furnace fully meets their biomass pyrolysis process requirements, delivering significant core benefits:

Improved process performance: Dynamic rotary heating enables more complete biomass pyrolysis. The fixed carbon content of biochar has exceeded 85%, while the impurity content of bio-oil has decreased by 30%, greatly enhancing product quality stability.

Enhanced production efficiency: The continuous operation mode replaced traditional batch processes, increasing single-batch processing efficiency by over 4 times, reducing labor costs by 60%, and stably achieving daily processing of 1-ton biomass feedstock.

Optimized maintenance experience: The modular design facilitates furnace tube replacement and internal cleaning. The intelligent control system lowers operation barriers, with equipment failure rates well below the industry average, providing reliable support for subsequent large-scale production.

The equipment has now been operating stably for over 12 months. Based on the process data collected, the customer is further expanding their business scenarios in biomass solid waste treatment to realize the high-value utilization of agricultural and forestry waste.

For inquiries and customized solutions,
contact us via WhatsApp: +86 18037178440
Email: web@kejiafurnace.com.

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