Title:
Applying Modern Automotive Technology on Small Scale Gasification Systems for CHP Production: a Compact Hot Gas Filtration System
Author(s):
Mertzis, D., Kavvadas, I., Koufodimos, G., Samaras, Z.
Document(s):
Paper
Slide presentation
Abstract:
Cost-effective and durable producer gas cleaning is a necessary step towards the promotion of sustainable gasification systems for electricity production. The automotive industry has a vast technological experience on hot gas filtration in both experimental and simulation levels. Even though the nature of pollutant load in the producer gas is diversified compared to the engine exhaust, the tools developed in automotive research can be also applied on small-scale bioenergy applications. By integrating a small-scale gasification system with an efficient, cost-effective, durable and compact filtration system, the applicability of small scale bio-based energy production units for decentralized electricity production is enhanced. Hot producer gas cleaning was attempted via the use of ceramic Diesel Particulate Filters (DPF) nominally designed to operate in automotive applications. Different types of DPFs were used as downstream hot gas filters in an atmospheric air blown bubbling fluidized bed gasification reactor. The experiments were short time and durability tests conducted with agricultural residues under various gasification temperatures and air ratios. Being the first attempt of using "narrow structured" ceramic DPF in a heavily loaded gas, basic scope was to investigate operation performance in terms of overall collection efficiency, loading and pressure drop profile as well as regeneration performance and structural endurance. The experimental results showed high DPF efficiency concerning total particle matter collection, and highlighted fields for further research. Poor operation performance experienced due to surface plugging and in some cases limited thermal resistance under uncontrolled regeneration conditions. Insight into the overall behavior of the DPF’s was gained via conducting axial tomography and imaging analysis. Further research is needed adapting different geometrical structures and obtaining better control of loading and regeneration processes.
Keywords:
combined heat and power generation (CHP), gasification, hot gas cleaning, modelling, fluidized bed
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for power, CHP and polygeneration
Event:
24th European Biomass Conference and Exhibition
Session:
2BO.2.5
Pages:
484 - 493
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2BO.2.5
Price:
FREE
