Title:
Performance Characteristics and Dielectric Conditions of a Wet Electrostatic Precipitator Application for Tar Removal
Author(s):
Schröder, P., Arumugam, S., Neubauer, Y., Schoenemann, T.
Document(s):
Paper
Poster
Abstract:
The present study investigates performance characteristics and dielectric conditions of a single stage, single wired wet electrostatic precipitator (ESP) unit. The test object chosen for the present study is a laboratory scale ESP that operates in sequence with a fluidized bed gasifier. The main purpose of the ESP is to clean the product gas of the biomass gasifier. Previous investigations indicated that despite higher cleaning efficiency and operating performance, a small amount of tar contents defy the electric field and remain suspended in the relatively clean product gas. These tar contaminants along with aerosols form droplets and sometimes condense and deposit on the exposed insulator surface. While unnoticed, the deposition glazes on the surface of the insulator and practically renders uncleanable and the contamination layer compromises the dielectric condition of the support insulator. Due to the affected dielectric condition the removal efficiency of the ESP unit is lowered. In conclusion, it is believed that the present study might provide at least a preliminary insight into the electrical behavior of the tar species which has not been researched in depth until today.
Keywords:
gas cleaning, gasification, electrostatic precipitator, tar removal efficiency, high voltage insulator
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for power, CHP and polygeneration
Event:
21st European Biomass Conference and Exhibition
Session:
2CV.3.14
Pages:
789 - 794
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2CV.3.14
Price:
FREE
