Study of water-oil emulsion combustion in large pilot power plants for fine particle matter emission reduction

Date

2007-04-01

Author

Allouis, Christophe Gerard
L'Insalata, A.
Fortunato, L.
Saponaro, A.
Beretta, F.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

135
views

0
downloads

The combustion of heavy fuel oil for power generation is a great source of carbonaceous and inorganic particle emissions, even though the combustion technologies and their efficiency are improving. The information about the size distribution function of the particles originated by trace metals present into the fuels is not adequate. In this paper, we focused our attention the influence of emulsion oil-water on the larger distribution mode of both the carbonaceous and metallic particles. Isokinetic sampling was performed at the exhausts of flames of a low-sulphur content heavy oil and its emulsion with water produced in two large pilot plants. The samples were size-segregated by mean of an 8-stages Andersen impactor. Further investigation performed on the samples using electronic microscopy (SEM) coupled with X-ray analysis (EDX) evidenced the presence of solid spherical particles, plerosphere, with typical dimensions ranging between 200 nm and 2-3 mu m, whose atomic composition contains a large amount of the trace metals present in the parent oils (Fe, V, Ni, etc.). EDX analyses revealed that the metal concentration increases as the plerosphere dimension decreases. We also observed that the use of emulsion slightly reduce the emission of fine particles (D-50 < 8 mu m) in the large scale plant. (c) 2006 Elsevier Inc. All rights reserved.

URI

https://hdl.handle.net/11511/89884

Journal

EXPERIMENTAL THERMAL AND FLUID SCIENCE

DOI

https://doi.org/10.1016/j.expthermflusci.2006.04.011

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Structure of inorganic and carbonaceous particles emitted from heavy oil combustion Allouis, Christophe Gerard; Beretta, F; D'Alessio, A (2003-06-01) The combustion of heavy fuel oil for power generation is a great source of carbonaceous and inorganic particle emissions, even though the combustion technologies and their efficiency are improving. The information about the size distribution function of the particles originated by trace metals present into the fuels is not adequate.
Investigation of SO2 removal characteristics with limestone under oxycombustion conditions Avşaroğlu, Sevil; Sanin, F. Dilek.; Department of Environmental Engineering (2019) One of the technologies to increase combustion efficiency and decrease CO2 and other emissions is Oxy-Fuel Combustion. Combustion efficiency is higher and emissions are lower when the oxygen concentration of air is higher. In this thesis different characteristics of two indigenous Turkish lignites are investigated by Thermal Gravimetric Analysis (TGA). Pyrolysis is carried out under both N2 and CO2 atmospheres and combustion characteristics is also examined. CO2 acts as an inert gas at lower temperatures. T...
Development of anodes for direct oxidation of methane fuel in solid oxide fuel cells Akdeniz, Yelda; Timurkutluk, Bora; Timurkutluk, Cigdem (2016-06-22) In addition to pure hydrogen, solid oxide fuel cells (SOFCs) can utilize hydrocarbons as a fuel. However, conventional Ni-based anodes exhibit an excellent catalytic activity towards the hydrocarbon cracking reaction and thus the carbon deposition occurs in the anode. The deposited carbons quickly deactivate the anode irreversibly by covering the active surface of the anode catalyst. As a result, a significant degradation in the cell performance can be seen. In this study, the anode structure is modified by...
Experimental investigation of an oil loss mechanism in internal combustion engines Sezer, Ahmet; Dursunkaya, Zafer; Department of Mechanical Engineering (2010) Oil loss mechanisms in internal combustion engines have been subject to many researches. By the help of technological developments effects of several problems due to oil losses were examined and tried to be reduced. Environmental pollution and performance loss are important issues that oil consumption in internal combustion engines contribute. In this study the effects of individual parameters on the oil accumulation in 2nd land crevice of internal combustion engines, volume between top compression rings, w...
Modeling and design of a non-thermal plasma reactor for CO2 dissociation Ahmed, Humayun; Taylan, Onur; Sustainable Environment and Energy Systems (2017-1) The requirement of energy constantly increases with time, and one of the major sources of energy is fossil fuels which release carbon dioxide upon combustion. Environmentally, CO2 is a greenhouse gas which has had a tremendous impact on the Earth’s climate over the last few decades and the urges serious mitigation methods for the long-term sustainability of the Earth’s climate and ecosystem. One mitigation method is the dissociation of CO2 to produce synthesis gas which can be used to produce alternative hy...

Citation Formats

C. G. Allouis, A. L’Insalata, L. Fortunato, A. Saponaro, and F. Beretta, “Study of water-oil emulsion combustion in large pilot power plants for fine particle matter emission reduction,” EXPERIMENTAL THERMAL AND FLUID SCIENCE, pp. 421–426, 2007, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89884.