Title:
Fuel Quality Analysis for Biogas Utilization in Heavy Duty Dual Fuel Engines
Author(s):
Alamia, A., Thunman, H., Magnusson, I.
Document(s):
Paper
Abstract:
Natural gas (NG) and subsequently synthetic natural gas (SNG) are expected to increase their share of the market in the heavy transportation sector. In response to this trend engine suppliers need to develop engines for various fuels of both fossil and renewable origin. One possibility is Dual Fuel engines (DF), which uses a Diesel pilot to ignite a gas mixture. To obtain significant share of biofuels, gasification of raw solid biomass to gas isa key process. The initial gas from the gasification, before it is upgraded to SNG, contains of a blend of various gas components, which are not commonly present in NG. The upgrading takes place in many process steps increasing costs and energy losses. The question raised is if there are more efficient routs to introduce biomass derived gas than refine it all the way to SNG, from a well to wheel perspective? This work investigates how different gas mixtures could meet emission limits, together with the required performance of efficiency and load, in DF engine. Three parameters which are fundamental for a proper combustion in a DF engine have been used to define the quality of the fuel: Lower Heating Value (LHV), Methane Number (MN) and Lower Flammability Limit (LFL). The components available from biomass gasification were evaluated together with those from different NG compositions on the European market.
Keywords:
biomass gasification, synthetic natural gas (SNG), dual fuel engine, methane number, fuel quality
Topic:
Industrial Demonstration and Business Concepts
Subtopic:
Biofuels for transport
Event:
20th European Biomass Conference and Exhibition
Session:
4AO.8.1
Pages:
1826 - 1830
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-4AO.8.1
Price:
FREE
