Small Biomass Wood Agricultural Residues Pellet Plant in Chile

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Project Overview

This 1–1.5 t/h small biomass wood agricultural residues pellet plant in Chile is designed for flexible raw material handling and stable daily production.

The system integrates crushing, drying, pelletizing, and packing into a compact layout, keeping investment under control while ensuring consistent pellet quality.

At its core, this biomass pelletizing plant focuses on balancing moisture and particle size, since the client uses mixed feedstock: wood waste + agricultural residues.

Basic Project Information

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How the Inquiry Started

The first email came in March 2024. It wasn’t detailed.

Just a few lines:

“We have wood waste and crop residues. Moisture high. Want small pellet machine line. Budget limited.”

We’ve seen this many times. When the conversation continued, the real situation became clearer:

• The client runs a small wood processing yard
• Nearby farms produce corn stalks, peanut shells, and straw
• Raw materials are seasonal and inconsistent
• Storage space is limited
• Electricity supply is stable, but fuel cost is high

By May 2024, after several layout revisions and material testing discussions, the contract was signed.

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Raw Materials

In Chile, raw materials are not as uniform as in large forestry countries. That’s why this biomass wood pellet plant construction project was designed to accept mixed inputs.

Before finalizing the design, we asked the client to send moisture and size estimates. The numbers weren’t perfect, but good enough.

Raw Material Composition

Typical agricultural materials:

• Corn stalks
• Peanut shells
• Rice straw (limited)
• Tobacco stems (seasonal)

One issue we noticed early:
Wood material was fine, but agricultural residues were too fibrous and uneven.

So we adjusted the crushing stage accordingly.

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Energy & Utility Consumption

Water is mainly used for domestic use, not production. No wet processing here.

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Equipment Configuration

We didn’t overload this project with too many machines. The idea was simple: keep it reliable.

Crushing Section

Drying Section

Pelletizing Section

Cooling & Packing

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Process Flow

This small biomass pelletizing line in Chile follows a fairly standard process—but the details matter.

1. Pre-crushing

• Raw materials reduced to 10–30 mm
• Necessary for agricultural residues
• Helps avoid blockage in hammer mill

Small note:
The client initially skipped this step to save cost.
It didn’t work. We added it back later.

2. Fine Crushing

• Output size: <5 mm
• Ensures good pellet formation
• Dust controlled via cyclone + bag filter

3. Drying

• Moisture reduced from ~30% → 15%
• Temperature: 50–60°C
• Residence time: ~20 minutes

The first week after commissioning:

“Material sometimes too wet, sometimes too dry.”

We adjusted airflow and feeding speed. After that, stable.

4. Pelletizing

This is where things get sensitive.

• Temperature inside die: 70–110°C
• Lignin softens → natural binder
• No additives used

If moisture is wrong:

• Too wet → soft pellets
• Too dry → high wear, low output

5. Cooling & Packing

• Pellets cooled naturally
• Packed into 20–40 kg bags

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Environmental Handling

Instead of complex systems, we used practical solutions:

Air Emissions

• Cyclone + bag filter system
• Central exhaust stack (~15 m)
• Fan airflow: 8000–10000 m³/h

Wastewater

• Only domestic wastewater
• Treated via septic system
• Reused for nearby land

Solid Waste

Noise Control

• Fully enclosed workshop
• Equipment base damping
• Layout separation

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Layout Considerations

The site wasn’t large, so layout mattered.

• Raw material yard near entrance (north side)
• Production workshop south side
• Office west side

We kept material flow mostly linear, avoiding backtracking.

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Shipping & Delivery

• Departure Port: Qingdao Port, China
• Arrival Port: Port of San Antonio, Chile

Delivery time: ~35 days

Installation team arrived about 10 days after equipment delivery.

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Timeline

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A Few Observations After Running

After about 2 months of operation:

• Output stabilized around 1.2 t/h
• Dust recovery worked better than expected
• Agricultural residues needed stricter size control

One thing the operator said:

“The machine is stable, but raw material is never stable.”

That’s actually the key challenge in small biomass plants.

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Market Outlook in Chile

Chile’s energy market is shifting quietly.

• Increasing pressure to reduce fossil fuel use
• Industrial users looking for alternative fuels
• Agricultural waste still underutilized

Small-scale biomass pellet plants in Chile are not yet saturated. Especially in regions with mixed farming and forestry.

This kind of 1–1.5 t/h biomass wood pellet production line fits well for:

• Small factories
• Agricultural cooperatives
• Local fuel suppliers

This biomass pellet project is not large. Not complex either.

But it’s realistic.

That’s usually what works best.

We didn’t just supply a biomass fuel pellet machine—we helped the client figure out:

• how to use mixed raw materials
• how to stabilize moisture
• how to keep investment under control

If you’re planning something similar, the first thing worth checking isn’t the machine.

It’s your raw material.

Everything else follows from that.