SEM Observation of Slagging Fouling on Ash Deposit from Co-Firing Lignite Ash Coal and 10% Biomass Using Drop Tube Furnace

DOI

10.2991/aer.k.211129.027How to use a DOI?

Keywords

SEM observation; drop tube furnace; EDS analysis

Abstract

Co-firing technology is an essential part of reaching 23% EBT in 2025, where Coal-fired power plant still dominates Indonesian power plant situation. On the other hand, the use of biomass co-firing increases the risk of slagging fouling. An effort to reduce the risk is a test with DTF on a temperature probe according to the Coal-fired power plant conditions. The results of these tests were observed using SEM technology, especially in terms of morphology. SEM test results of ash deposit observation from lignite ash coal blend for probe temperature 550°C (fouling) and probe temperature 600°C and 700°C (slagging) is considered safe. It showed on SEM image and EDS analysis which alkali and iron content still at safe limits while for SEM observation of ash deposit from blending of lignite ash coal blend and 10% sawdust showed that SEM image and EDS analysis for probe temperature 550°C and 600°C is considered safe. However, at probe temperature 700°C even from EDS analysis is safe, but from SEM image it showed sintering began to form.

Copyright

© 2021 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - Hariana
AU  - Hanafi Prida Putra
AU  - Fairuz Milkiy Kuswa
AU  - Minako Kawai
AU  - Clause Nielsen
PY  - 2021
DA  - 2021/11/30
TI  - SEM Observation of Slagging Fouling on Ash Deposit from Co-Firing Lignite Ash Coal and 10% Biomass Using Drop Tube Furnace
BT  - Proceedings of the International Conference on Innovation in Science and Technology (ICIST 2020)
PB  - Atlantis Press
SP  - 118
EP  - 121
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211129.027
DO  - 10.2991/aer.k.211129.027
ID  - 2021
ER  -