Pyrolysis Batch Reactor for Smaller-Scale Projects

Built for flexibility and reliability, the batch system is ideal for operations looking for straightforward control without the complexity of continuous systems. It’s engineered for easy loading, safe operation, and simplified maintenance—perfect for both large and small-scale producers.

affordable and reliable

Our Pyrolysis Batch Reactor is a robust, high-efficiency system designed to transform a wide variety of organic feedstocks into biochar. Whether you’re working with agricultural residues, wood chips, nutshells, green waste, or even industrial biomass byproducts, this reactor delivers consistent results with minimal emissions and excellent carbon retention.

Volume

The batch reactor can handle 1.4 m3 of biomass per cycle. This equals 448 m3 per year if run at full capacity.

The batch reactor is made to be portable, so it can be moved on a simple trailer if needed.

Height: 320 cm

Width: 250 cm

Weight: 1500 kg

An image of a pyrolysis batch reactor. The reactor is green with a multicoloured PUHI logo on the side.
A hand holding small granulate biochar.

What can the biochar be used for?

Biochar is a versatile material with numerous high-value applications:

  • Soil Amendment: Enhances soil fertility, water retention, and microbial activity—ideal for regenerative agriculture and permaculture.

  • Carbon Sequestration: Locks carbon in a stable form, helping offset greenhouse gas emissions.

  • Livestock & Compost Additive: Improves nutrient absorption and reduces odors in composting systems and animal bedding.

  • Water Filtration: Acts as a natural filter medium for purifying water in environmental or industrial applications.

Whether your goals are environmental, agricultural, or commercial, our the batch reactor provides a scalable solution for turning waste into opportunity. We’ve also written an article about it, if you want to read more. 

What can the biochar be used for?

The biochar produced is a versatile, carbon-rich material with numerous high-value applications:

  • Soil Amendment: Enhances soil fertility, water retention, and microbial activity—ideal for regenerative agriculture and permaculture.

  • Carbon Sequestration: Locks carbon in a stable form, helping offset greenhouse gas emissions.

  • Livestock & Compost Additive: Improves nutrient absorption and reduces odors in composting systems and animal bedding.

  • Water Filtration: Acts as a natural filter medium for purifying water in environmental or industrial applications.

Whether your goals are environmental, agricultural, or commercial, our the batch reactor provides a scalable solution for turning waste into opportunity.

A hand holding small granulate biochar.

The process

Loading

15 minutes

The reactor is toploaded with biomass

Starting

90 minutes

Once the reactor is filled, the pyrolysis process is started from the bottom

Pyrolysis

4-5 hours

The biomass reaches temperatures of 600-700 degrees and is turned into biochar

Cooling

5-6 hours

After the pyrolysis process is done, the reactor needs to cool before emptying

Emptying

10 minutes

The reactor is emptied by tipping it using the built-in system

A pile of small granulate biochar.

Which biomass can be used?

Most biomass can be used as long as it has a low enough moisture content and it has a particle size of 10mm-60mm. The resulting biochar produced, and what it can be used for, will depends on the feedstock. Below we have listed some of the most obvious and common feedstocks for the reactor.

Wood

Any type of excess wooden biomass can be used to make biochar, and quite often this is the feedstock that provides the highest quality biochar.

Many agricultural processes have a degree of waste. This waste, when dried, is perfect for making biochar.

Mixed biomass from personal gardens also works for making biochar. The quality of the biochar is harder to predict though, but for uses that don’t require too high quality, it is an ideal feedstock.

If you have further questions, you can find answers to these questions and more in our FAQ section.

Suitable Biomass

Most biomass can be used as long as it has a low enough moisture content and it has a particle size of 10mm-60mm. The resulting biochar produced, and what it can be used for, will depends on the feedstock. Below we have listed some of the most obvious and common feedstocks for the reactor.

Wood

Any type of excess wooden biomass can be used to make biochar, and quite often this is the feedstock that provides the highest quality biochar.

Many agricultural processes have a degree of waste. This waste, when dried, is perfect for making biochar.

Mixed biomass from personal gardens also works for making biochar. The quality of the biochar is harder to predict though, but for uses that don’t require too high quality, it is an ideal feedstock.

If you have further questions, you can find answers to these questions and more in our FAQ section.

A pile of small granulate biochar.

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