This deliverable is the first one in a series of deliverables describing the physico-chemical properties of fast pyrolysis bio-oil (FPBO) blends of different feedstock. It is known that blending of bio-oils may not necessarily yield similar products than producing bio-oils from mixed feedstocks. Therefore, both approaches will be tested in the Residue2Heat project:
- Blending of the produced FPBO of different feedstock
- Blending of different feedstock to produce FPBO
In this deliverable various FPBOs from different feedstock have been blended in different ratios (1:3, 1:1, 3:1) with the objective of producing a homogenous bio-oil. If FPBOs can be blended by various ratios the fuel oil properties of these bio-oils can be adjusted to meet required emission limits in combustion. Also the blending of degraded FPBOs has been studied.
Blending of pine and straw FPBOs as well as pine and forest residue FPBOs were successfully carried out and homogenous FPBO blends were obtained. It is concluded that FPBOs can be blended to reach target fuel properties, like maximum sulphur and nitrogen contents. More blending tests including different FPBOs and thermal stability tests are ongoing and will be reported in the next deliverable.
The series of deliverables (D3.6 – D3.8) related to FPBO blending are primarily used for Residue2Heat internal documentation although they are marked as public. The follow up deliverables will include more details and analysis concerning benchmarking of processes, comparison of data between different feedstock and the performance of measures for optimal blending.
|D3.6 Physico chemical properties of Blends|