Title:
Smart and Flexible Heat & Power from Fast Pyrolysis Oil
Author(s):
van de Beld, B., Florijn, J., Holle, E., de Laat, T., Scheer, R., Preijde, D.
Document(s):
Paper
Abstract:
Small scale biomass-based Combined Heat and Power (CHP) has the potential to contribute significantly in solving the challenges Europe faces while pursuing the goal to make its energy system smart, clean, flexible, secure, cost competitive and efficient. The overall objective of the SmartCHPproject is the realization of a cost-effective and flexible energy system by using Fast Pyrolysis Bio-Oil (FPBO) in an efficient CHP based on a compression-ignition engine. Fast pyrolysis is a process to convert a variety of biomass resources into a uniform liquid fuel called FPBO, nowadays, produced on a commercial scale in Europe. (e.g. Finland, Sweden & the Netherlands). The FPBO originates from different types of lignocellulosic biomasses and/or residues. Two compression-ignition engines are available at BTG, a one-cylinder research engine (1C) and a 48 kWe, four-cylinder prototype (4C). Both engines have been modified to enable operation on FPBO. The 1C engine has been tested on FPBOs of different origin like e.g., FPBO from sawdust, olive residue, miscanthus as well as with reference fuels like diesel, ethanol, butanol and HVO. Generally, CO emissionswere higher with FPBO and NOxemissions were lower.The overall electrical efficiency was rather similar for all fuels. A catalytic flue gas treatment unit has been installed, and emissions are below current EU regulations. Long duration testing has been part of the work, and over 1,000operating hours have beenaccumulated without changing fuel injector and/or fuel pump. The modifications on the 4C prototype are very similar to the 1C engine, and the fuel injection system is even identical. Initial testing of the prototype on FPBO was successful, and results are comparable to the 1C engine. Furthermore, electrical efficiency is hardly dependent on the fuel used.Recently, the flue gas treatment unit has been added to the prototype and commissioning and testing will start soon.
Keywords:
bioenergy, CHP, internal combustion engines, pyrolysis oil, renewable energies
Topic:
Plenaries
Subtopic:
Biomass conversion to intermediate bioenergy carriers and sustainable biofuels
Event:
31st European Biomass Conference and Exhibition
Session:
DP.1.1
Pages:
19 - 24
ISBN:
978-88-89407-23-3
Paper DOI:
10.5071/31stEUBCE2023-DP.1.1
Price:
FREE
