Title:
Investigation on Syngas Assisted Combustion for Low Emission Operation in Gas Burner
Author(s):
Paulauskas, R., Striūgas, N., Skvorčinskienė, R., Zakarauskas, K.
Document(s):
Paper
Abstract:
The European Union is tightening the requirements of environmental protection due to climate change and requires to increase the energy efficiency and to reduce environmental impacts. One of the possibility to reduce emissions is to use lean combustion for gas burners in industrial boilers. However, the combustion of lean air-fuel mixture causes the flame instability or extinction, which can lead to formation of thermo-acoustic waves causing vibrations or sudden pressure variations in the combustion system. These disadvantages motivate intensive search for innovative solutions to stabilize flame. One of these is co-combustion with syngas obtained by biomass gasification. The hydrogen rich syngas advances the gas mixture ignition and extends the flammability limits, thus ensuring the flame stability and the decrease in NOx generation. The purpose of this work is to perform an experimental investigation on the limits of flame stability by lean burning mixtures of synthetic/natural gas and synthetic/biogas, and determine the optimal ratio of gas composition to ensure the increased lean combustion stability and efficient reduction of NOx. The obtained results reveal the optimal syngas and natural gas mixture containing H2 and CO for stable combustion in lean combustion regime with an efficient NOx reduction.
Keywords:
syngas, natural gas, lean combustion, flat flame burner, ICCD camera
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass and bioliquids combustion for small and medium scale applications
Event:
26th European Biomass Conference and Exhibition
Session:
2AO.2.4
Pages:
403 - 407
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2AO.2.4
Price:
FREE
