Evaluation of gaseous emissions from thermal conversion of a mixture of solid municipal waste and wood chips in a pilot-scale heat generator

Valdemar Francisco da Silva Filho, Luciane Batistella, José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Christine Albrecht Althoff, Regina de Fátima Peralta Muniz Moreira and Humberto Jorge José

Renewable Energy, 2019, vol. 141, issue C, 402-410

Abstract: The objective of this study was to develop a novel pilot-scale system that combines pyrolysis and combustion processes, fed by a mixture of municipal solid waste (MSW) and wood chips (WC). The pyrolysis of MSW+WC (1:1) produces char and volatiles as fuels, which just the pyrolysis gas was used in a post-combustion chamber for heat generation. The gases evaluated were carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO2), BTEX (benzene, toluene, ethylbenzene and xylene) and polycyclic aromatic hydrocarbon (PAHs). Initially, the pyrolysis was performed by laboratory experiments and the physicochemical characterization of MSW+WC. The MSW+WC showed a heating value of 23.93 MJ kg−1, which is higher than several bioenergy crops reported. The pyrolysis and post-combustion process were found to minimize the generation of hydrochloric acid (HCl), dioxins and furans as well as the volatile compounds. The gases concentrations emitted were (mg Nm−3): 35.83 of CO, 24.37 of SO2, 106.84 of NOx, and 4.88 × 10−3 of BTEX, with a low PAH content. These values are below the legal emission standards established by United States Environmental Protection Agency (US EPA), Danish Environmental Protection Agency (Danish EPA), German Federal Emission Control Regulations (17.BlmSchV) and National Council for the Environment of Brazil (CONAMA 316/02).

Keywords: Pyrolysis; Post-combustion; Municipal solid waste; Wood chips; Gaseous emissions (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119305154
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:141:y:2019:i:c:p:402-410

DOI: 10.1016/j.renene.2019.04.032

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().