Our Gasifiers

Biomass Gasifier

The Biomass Gasifier is P-GEM’s flagship product. Years of experience, research, design and development have gone into our Gasifier solutions.

P-GEM Gasifiers are designed and built around the specific need of the project. These tailor made solutions takes into account the specific application or combination of applications.

Our gasifiers get delivered with the following in mind unless the client specify differently.

• Units are built into a compact unit within a container
• All electronic, electric work is done and built into a separate room within the container
• Units are run and fully tested before they are being dispatched
• Minor assembly is required at the site
• Units are designed and built in a modular way to easily repair, replace and upgrade
• All units comes with a complete operating manual as well as training on use
• Functionality, operation, cycles and other features can be set locally at the control interface for the unit, or can be done via remote terminal on a tablet, phone or PC

The  Batch Gasifier typically consists of a hopper that sits on a feeder tube that fits inside the gasifier. Air is fed into the gasifier through the reactor in a downdraft. The unit burns the feed-stock until the feeder tube and hopper is empty which is calculated to be a typical cycle.

• It is designed for batching applications where a product goes through a single cycle.
• Unit fully automated and refills the hopper and restart a new cycle.

Typical applications

Running specific heat or power generation cycles e.g. daytime hours or shifts.

• Curing or drying of products on cycles.
• Burning excess bio material and exchanging for heat or electricity during a work day cycle.
• Melting,Distilling or additional power generation during peak hours.

Features

Being a less complex unit the downdraft gasifier has the following specific features.

• Less maintenance.
• Less moving parts
• Unit typically cheaper.
• Can basically burn almost any chipped or pelletized material.

The constant feed gasifier typically consists of a hopper which feeds Biomass into the Reactor unit at a rate controlled carefully through a PLC (Programmable Logic Controller). The unit runs continuously as long as there is biomass available or unless it is shut down.

• It is designed for applications where the application cycle differs or is continuous.
• The unit is fully automated. Once it is started it will maintain it’s processes.

Typical Applications

Running long uninterrupted heat or power generation cycles

• Long drying or heating cycles where a batch unit becomes to big.
• Water Heating and Steam Applications where heat needs to be maintained.
• Cooling applications where low temperatures needs to be maintained.

Features

Being a more complex unit the constant feed gasifier is more effective at converting biomass to energy and has the following features.

• Unit Mainly controlled by PLC
• Very high core temperatures as well as very little carbon emission.
• Can burn wood chips, pellets and other chipped materials, however the material needs to be able to move through the auger.

What size Gasifier?

Gasifier size and design falls basically into two categories:

• Output Capacity (kW)
• Volumetric/Physical Size

Both these sizes get determined by the application requirements. e.g.

• The reactor unit of a 750kW application needs to be designed larger than that of a 500kW unit. Though there is a variance in the output that can be achieved (eg. a 500kW unit can output up to 750kW) the airflow within the gasifier needs to be matched to the requirement in order for the unit to run efficiently. Therefor for example a 750kW unit will be very ineffective at producing only 250kW.
• The Physical size of the unit is determined by the size of the reactor unit, but more by the application and the type of material that will be energized. Where for example air is heated inside the combustion chamber via Heat exchange, a much larger combustion chamber is required than would be the case where heat is transferred to water.

The completed unit size therefor is a mix of power requirement and energy transfer medium.

Our Thermonator Product Range

Medium of Energy Transfer

A complete, assembled gasifier unit comes pretested and running inside a container. Most units is built into a 6m x 2.6m x 2.5m container. When the container arrives at the site , it needs a solid level foundation, preferably a concrete slab to be placed on.

From here it is very simple to get the unit up and running.

• Fit the hopper in the case of a batch gasifier, or extended hopper in the case of a constant feed gasifier.
• Mount the feeding conveyor to the hopper at the supplied connection points.
• Connect electrical link between conveyor and the gasifier.
• Connect the outlets for the energy, to either the flanges for Air,Steam or water, or to more than one output depending on the application spec.
• Feed the hopper with the bio-material.
• Start the unit.

For STH it is very important to build a quickly deploy-able and plug-and-play unit which is completely checked and scrutinized before leaving our site.

Remote assistance is available via the build in communication module in the PLC. (Wifi or some internet connection is required). This allows the owner, manager or our support team to monitor the unit and make sure it is performing within the required specifications.