Effects of biodegradable- and non-biodegradable-rich waste separation on ash deposition behaviour during coal and refuse-derived fuel co-combustion

Adi Prismantoko; Feri Karuana; Ardi Nugroho; Puji Agus Santoso; Hanafi Prida Putra; Arif Darmawan; Muhammad Akhsin Muflikhun; Indro Pranoto; Muhammad Aziz; Hariana Hariana

doi:10.1016/j.wasman.2024.01.044

Effects of biodegradable- and non-biodegradable-rich waste separation on ash deposition behaviour during coal and refuse-derived fuel co-combustion

Waste Manag. 2024 Apr 1:177:158-168. doi: 10.1016/j.wasman.2024.01.044. Epub 2024 Feb 6.

Authors

Affiliations

¹ Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta 55281, Indonesia; Research Center for Energy Conversion and Conservation, National Research and Innovation Agency, South Tangerang 15314, Indonesia.
² Technology Development Unit, PLN Nusantara Power, Surabaya 60231, Indonesia.
³ Mechanical Engineering Department, Faculty of Industrial Technology and Systems Engineering, Sepuluh Nopember Institute of Technology, Surabaya 60115, Indonesia.
⁴ Research Center for Energy Conversion and Conservation, National Research and Innovation Agency, South Tangerang 15314, Indonesia.
⁵ Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta 55281, Indonesia.
⁶ Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan.
⁷ Research Center for Energy Conversion and Conservation, National Research and Innovation Agency, South Tangerang 15314, Indonesia. Electronic address: hariana@brin.go.id.

PMID: 38325016
DOI: 10.1016/j.wasman.2024.01.044

Abstract

The potential impact of ash deposition during the combustion of separated biodegradable- and non-biodegradable-rich waste of refuse-derived fuel (RDF) was evaluated in this study. Theoretical prediction, drop tube furnace experimental combustion, and ash observation were performed to comprehensively investigate their ash deposit behaviour. The results show that high CaO and Cl in RDFs result in severe sintering and rust in the metal surface. The high ash deposit weight and aggregated sticky particles are observed during single-firing RDFs. Furthermore, adding 5 wt% of biodegradable-rich RDF or mixed RDF to coal has a less significant effect on ash deposition. However, several aggregate particles and metal degradation are observed during the combustion of mixed coal with the addition of 5 wt% non-biodegradable-rich RDF. The high Cl in non-biodegradable-rich RDF affects the ash deposition behaviour significantly. This research provides valuable insights into optimising coal-RDF co-combustion, especially with separating biodegradable- and non-biodegradable-rich RDFs.

Keywords: Co-combustion; Corrosion; Fouling; Refuse-derived fuel; Separation; Slagging.

MeSH terms

Coal*
Garbage*

Substances

Coal