Title:
Air Gasification of Low Grade Biomass in a Pilot-Scale Gasifier with a Bubbling Fluidized Bed Reactor: Effect of Activated Carbon Tower on Tar Removal
Author(s):
Rhee, H.S., Lee, U.D., Jeong, S.H.
Document(s):
Paper
Poster
Abstract:
Low grade biomass, which is known as third grade wood pellet in South Korea, was gasified in a pilot-scale fluidized bed reactor (1 ton /day) equipped with char separation system and activated carbon tower. In gasification experiment, the tar generated is crucial problem due to the blocking of pipelines and equipment. In this study, the gasification of low grade biomass within 800~900°C reaction temperature was carried out under the various equivalence ratios (ERs). In addition, the effect of activated carbon tower was investigated to reduce the tar content in producer gases. Variance of producer gas composition with activated carbon temperature also investigated. The compositions of producer gases generated were analyzed using NDIR (Non-dispersive infrared absorption) and GCs (FID and TCD). Although raw gas contains relatively low composition of combustible gases (H2, CO and CH4) with low grade biomass, quality improvement of produce gas and drastic tar removal with applying activated carbon tower was achieved.
Keywords:
activated carbon, biomass, gasification, tar removal
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Gasification for Synthesis Gas Production
Event:
29th European Biomass Conference and Exhibition
Session:
2AV.4.8
Pages:
537 - 540
ISBN:
978-88-89407-21-9
Paper DOI:
10.5071/29thEUBCE2021-2AV.4.8
Price:
FREE
