Title:
Energy Valorization of Swine Manure by Oxygen Carrier Aided Combustion (OCAC) with Oxygen Carriers Based on Natural Ores
Author(s):
Domingos, Y., Abad, A., De las Obras Loscertales, M., Izquierdo, M.T., Gayán, P.
Document(s):
Paper
Poster
Abstract:
The primary environmental impacts of swine manure, in both solid and liquid fractions, fundamentally arise from two sources: greenhouse gas emissions (GHGs) and the excessive accumulation of nutrients in the field. Therefore, the search for a suitable solution to this problem is of great importance. The energy valorization of the solid fraction of swine manure is an option with the potential to mitigate the environmental concerns associated with this residue. Among the new technologies for turning these wastes into energy, oxygen carrier aided combustion may be a promising alternative. In this work, experimental tests using swine manure as fuel in a 3kWth unit with different types of oxygen carrier have been performed. The employed oxygen carriers included a hematite mineral, a manganese ore and Ilmenite. The effects of temperature (800-900 ºC) and oxygen excess in the reactor (1-3vol% of O2) on the combustion efficiency and the nitrogenous compound emissions (N2, NH3, NOx) were analyzed. In general, high combustion efficiencies (87-98%) were reached an most nitrogen was converted into NO and N2.
Keywords:
animal residues, oxygen carrier aided combustion, natural ores
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Advanced biomass combustion
Event:
32nd European Biomass Conference and Exhibition
Session:
4CV.3.7
Pages:
578 - 581
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-4CV.3.7
Price:
FREE
