An activated carbon activation furnace is a rotary thermal processing machine that converts carbonized material into finished activated carbon through high-temperature steam activation.

Working at 850–1,100 °C, it injects superheated steam into a rotating furnace tube, where the gas-solid reaction opens blocked pores and builds a rich internal pore structure — giving the product a specific surface area of 700–2,000 m²/g and the strong adsorption capacity required for water treatment, gold recovery, and air purification.

The furnace processes virtually all carbonized biomass and mineral chars, including coconut shell, palm shell, apricot shell, peach shell, walnut shell, wood chips, bamboo, sawdust charcoal, and coal-based char, with a flexible output of 150–250 kg per hour (approximately 3.6–6 tons per day) per unit. For larger projects, multiple furnace bodies can be combined into a turnkey production line with a daily output of 4 tons, 10 tons, or more.

Industrial Activated Carbon Activation Furnace for Sale

Activated carbon is one of the most widely used adsorbents in the world. It is produced from carbon-rich materials such as coconut shell, wood, fruit stones, bamboo, and coal. After carbonization, the raw char still has a limited pore structure — it must be “activated” to become a functional adsorbent.

The activation furnace is the equipment that performs this critical step. Inside the rotating furnace tube, the carbonized material reacts with superheated steam at high temperature. This gas-solid reaction burns away tar and amorphous carbon, opens blocked micropores, and creates new pore channels, producing activated carbon with an iodine adsorption value of 900–1,500 mg/g according to customer requirements.

How Does the Activation Process Work?

Physical activation — also called the steam activation method — uses pure carbonized material without any chemical additives. The process inside the activated carbon activation furnace follows three pore-development stages:

• Stage 1 – Pore Opening. The activating agent (steam) oxidizes and burns off the tar and amorphous carbon deposited between the microcrystalline structures of the char. Blocked and closed pores from the carbonization stage are opened. Carbon burn-off in this stage is usually below 10%.
• Stage 2 – Micropore Development. Once the deposits are removed, the steam reacts selectively with the carbon microcrystals, creating large numbers of new pores — predominantly micropores, which are responsible for high iodine adsorption values.
• Stage 3 – Pore Widening. As activation continues, carbon atoms on the pore walls are progressively gasified. Pores expand, and walls between adjacent pores disappear, forming mesopores. Burn-off in this stage can exceed 50%, and the mesopore structure (methylene blue adsorption capacity) becomes well developed.

Key Operating Parameters in Practice

Target Product	Activation Temperature	Furnace Speed	Residence Time	产量
Iodine value ≤ 1,100 mg/g (best yield)	≤ 950 °C	≥ 1 rpm / 3 min	≤ 120 min	0.15–0.2 t/h
Iodine value 900–950 mg/g (higher output)	~900 °C	Increased feed	Shortened	0.23–0.25 t/h
Iodine value 1,400–1,500 mg/g (premium grade)	~1,050 °C	1 rpm / 4–5 min	Extended	Lower yield, higher value
High methylene blue value	900–950 °C	Extended time	Extended	Max steam, reduced air

For premium grades, the specific surface area of the finished activated carbon can reach 1,800–2,000 m²/g.

External Heating vs. Internal Heating Activation Furnace: Which Is Better?

Our activated carbon activation furnace adopts the external heating (indirect heating) design, which offers decisive advantages over the traditional internal-heating rotary kiln:

Comparison Item	External Heating Furnace (Ours)	Traditional Internal Heating Kiln
Product loss	Lower burn loss, +0.2% higher yield	Higher burn loss
Product hardness	Higher granule strength	Lower
机器尺寸	Compact, easy to transport and install	Bulky
Operation difficulty	Simple, no experience threshold; start/stop anytime	One startup needs ~3 days to stabilize; requires seasoned engineers on site
Heating method	Flameless electric heating available, precise temperature control	Open-flame heating, less precise
Environmental performance	Suitable for strict environmental and high-quality requirements	Higher emissions

This is why the external heating activated carbon activation furnace is the preferred choice for producers targeting premium coconut shell activated carbon markets and regions with strict environmental regulations.

Applicable Raw Materials

The furnace activates virtually all carbonized biomass and mineral chars, including:

• Coconut shell charcoal – the premium feedstock for water purification and gold recovery carbon
• Palm shell charcoal
• Fruit pit charcoal – apricot shell, peach shell, walnut shell, date pits
• Wood charcoal and wood chips
• Bamboo charcoal
• Sawdust and rice husk charcoal
• Coal-based char

Requirement: feedstock moisture should be below 15%, and material should be in granular form for uniform activation.

Technical Specifications – Model JY-1600

型号	JY-1600 external heating rotary activation furnace
Furnace tube dimensions	Length 12 m × Diameter 1.6 m
Furnace tube material	310S heat-resistant stainless steel, 30 mm wall thickness
Internal lifting plates	310S stainless steel, 8 mm
Heating chamber (insulation box)	6 m × 2.1 m × 2.2 m, Q235 shell + silicon-aluminum refractory modules
Sealing	3-layer stainless steel fish-scale seals at both ends
Drive system	φ1750 girth gear, riding rings, rollers, gearbox, 18.5 kW variable-speed motor
Main fan	Y5-47, 304 stainless steel, water-cooled bearing box, 15 kW, frequency controlled
容量	150–250 kg/h (3.6–6 t/day), adjustable by iodine value target
Activation temperature	850–1,100 °C, precisely controllable
Activation medium	Superheated steam (from integrated 0.5 T waste heat boiler)
Steam consumption	0.4–0.5 t/h
Total power (single line)	64.8 kW
冷却系统	Water-jacketed cooling screw + φ1 m × 10 m rotary char cooler + 100 T cooling tower
送料系统	Z-type conveyor + buffer silo (Φ2 m × 5 m) + Φ325 screw conveyor (variable frequency) + sealed feeder
Control	Centralized control cabinet, temperature/speed/feed interlocked

How to Control Activated Carbon Quality?

One furnace, multiple product grades. By adjusting three variables — activation temperature, furnace rotation speed (residence time), and steam-to-air ratio — you can precisely target:

• Iodine value: 900 → 1,500 mg/g (higher temperature and longer time = higher iodine value).
• Methylene blue value: raise by lowering temperature to 900–950 °C, extending activation time, maximizing steam and minimizing air intake.
• Yield vs. quality balance: ≤ 950 °C delivers the highest yield and best cost-performance ratio.

The external heating design with electric heating option gives ±precise temperature control impossible with open-flame kilns, so product quality stays stable batch after batch.

Complete Activated Carbon Production Line

Beyond the activation furnace itself, we supply the full turnkey line:

All exhaust gas is treated through dust removal and spray towers to meet environmental emission standards, and waste heat is recovered for steam generation — cutting your energy cost per ton of finished carbon.

Why Choose Our Activated Carbon Activation Furnace?

• Higher profit per ton: lower burn loss (+0.2% yield) and higher product hardness mean more sellable premium carbon from the same feedstock.
• Zero learning curve: start and stop anytime — no 3-day warm-up, no dependence on hard-to-find veteran kiln operators.
• Environmental compliance built in: flameless electric heating option, closed-system exhaust treatment, waste heat recovery.
• One furnace for all grades: from 900 to 1,500 mg/g iodine value, coconut shell to coal-based carbon.
• Proven engineering: heavy-duty 310S furnace tube (30 mm), fish-scale sealing, frequency-controlled drives throughout.

Get Your Customized Activation Solution Today

With years of experience in carbonization and activation equipment manufacturing, our machines are operating in activated carbon plants across Southeast Asia, Africa, South America, the Middle East, and beyond. They process coconut shells, palm shells, wood, and coal-based materials into activated carbon for water treatment, gold recovery, air purification, and other applications.

Whether you need a single activation furnace or a complete 4-ton-per-day turnkey activated carbon plant, our engineers can provide customized layouts, equipment solutions, and installation and commissioning support.

In addition to activated carbon activation furnaces, we also offer various types of carbonization furnaces to suit different raw materials, processing methods, and production requirements.

Contact us today for the latest activated carbon activation furnace price, a detailed technical proposal, and a plant layout drawing. Let us help you turn biomass waste into valuable carbon products with the right equipment for your business.