RES-chains training material:

The aim was to identify sustainable renewable energy source chains (RES-Chains) to encourage sustainable development within the South Baltic Region. The training material aimed to describe the connections between renewable energy sources and customers.

copy hosted by bioenergyprof.eu

 

Start over

Your choices so far:
1 Process heat (> 1000 °C);   2 Fuel: gaseous

What is your resource? What do you want to deliver? What is the service the customer wants?
Biomass (digestible sludge) District cooling Comfortable indoor climate
Biomass (fermentable sludge) District heating Electricity
Biomass (solid) Electricity Process cooling (< 0 °C)
Geothermal 2 Fuel: Gaseous Process heat/steam (50 - 150 °C)
Sunshine Fuel: Liquid Process heat (150 - 1000 °C)
Water Fuel: Solid 1 Process heat (> 1000 °C)
Wind Local cooling (ind. house) Transport
Residual oils/fats etc Local heating (ind. house)

 

A large number of industrial processes – large-scale as well as small-scale – today use fossil ("natural") gas as one main fuel. Main reasons are the relative simplicity of supply and control, the versatility and the relative cleanliness of the fuel with the end user.

Switching from fossil gas to a renewable energy carrier will then only be an option if the added value – either in the form of goodwill, in the form of reduced CO2-taxation/fees or by a lower fuel bill – is judged enough to pay for any extra costs for the change.

For a small-scale enterprise there will basically be only one alternative and that will be to contract the delivery of sng-quality (substitute natural gas) biogas via the European gas grid.

For the large-scale plant there will be two alternatives:

  1. The first and easiest will be to contract the delivery of sng-quality biogas via the European gas grid. The only question may be if there is enough volume available.
  2. The second alternative will be to install one or more solid biomass gasifier(-s) adjacent to the main process(-es) and then to modify the processes to operate on gasifier gas.

The second solution will involve investments as well as operational and maintenance costs and can only be defended economically if the feedstock to the gasifier is sufficiently cheap as compared to the gas from the grid. Thus, basically only wood chips from forest residues will be the alternative.