Effect of biomass-sulfur interaction on ash composition and agglomeration for the co-combustion of high-sulfur lignite coals and olive cake in a circulating fluidized bed combustor

Date

2015-12-01

Author

Varol, Murat
Atımtay, Aysel

Metadata

Show full item record

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

Item Usage Stats

138
views

0
downloads

This study aimed to investigate the effect of biomass-sulfur interaction on ash composition and agglomeration for the co-combustion of high-sulfur lignite coals and olive cake in a circulating fluidized bed combustor. The tests included co-combustion of 50-50% by wt. mixtures of Bursa-Orhaneli lignite + olive cake and Denizli-Kale lignite + olive cake, with and without limestone addition. Ash samples were subjected to XRF, XRD and SEM/EDS analyses. While MgO was high in the bottom ash for Bursa-Orhaneli lignite and olive cake mixture, Al2O3 was high for Denizli-Kale lignite and olive cake mixture. Due to high Al2O3 content, Muscovite was the dominant phase in the bottom ash of Denizli Kale. CaO in the bottom ash has increased for both fuel mixtures due to limestone addition. K was in Arcanite phase in the co-combustion test of Bursa/Orhaneli lignite and olive cake, however, it mostly appeared in Potassium Calcium Sulfate phase with limestone addition.

Subject Keywords

Co-combustion, Olive cake, High-sulfur lignite coal, Circulating fluidized bed, Agglomeration

URI

https://hdl.handle.net/11511/32320

Journal

BIORESOURCE TECHNOLOGY

DOI

https://doi.org/10.1016/j.biortech.2015.09.016

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Effect of freeboard extension on co-combustion of coal and olive cake in a fluidized bed combustor Akpulat, Onur; Varol, Murat; Atımtay, Aysel (2010-08-01) In this study, flue gas emissions and combustion efficiencies during combustion and co-combustion of olive cake and coal were investigated in a bubbling fluidized bed. Temperature distributions along the combustion column and flue gas concentrations of O-2, CO, SO2 and NOx were measured during combustion experiments. Two sets of experiments were performed to examine the effect of fuel composition, excess air ratio and freeboard extension on flue gas emissions and combustion efficiency.
Investigation of co-combustion of coal and olive cake in a bubbling fluidized bed with secondary air injection Atımtay, Aysel (2009-06-01) In this study, a bubbling fluidized bed of 102 mm inside diameter and 900 mm height was used to burn olive cake and coal mixtures. Tuncbilek lignite coal was used together with olive cake for the co-combustion tests. Combustion performances and emission characteristics of olive cake and coal mixtures were investigated. Various co-combustion tests of coal with olive cake were conducted with mixing ratios of 25%, 50%, and 75% of olive cake by weight in the mixture. Operational parameters (excess air ratio, se...
Influence of fat content and emulsifier type on the rheological properties of cake batter Sakiyan, O; Şümnü, Servet Gülüm; Şahin, Serpil; Bayram, Göknur (2004-11-01) The effects of fat content and emulsifier type on the rheological properties of cake batter have been investigated by using a parallel-plate rheometer. The apparent viscosity of cake batter with five different fat concentrations (0, 12.5, 25, 37.5, and 50%) and two types of emulsifier, namely Purawave and Lecigran, was studied as a function of the shear rate. In addition, the time dependency of different cake formulations was investigated. It was found that cake batter with different fat concentrations and ...
Effect of cleaning process on combustion characteristics of lignite Ozbas, Kazim Esber; Hicyilmaz, Cahit; Kök, Mustafa Verşan; Bilgen, Sedat (2000-01-01) In this research, the results of a study on the combustion characteristics of Soma lignite before and after cleaning are presented. Non-isothermal thermogravimetry (TG/DTG) experiments were carried out for four different size fractions. Experiments were performed from ambient to 900 degrees C in air atmosphere at 10 degrees C/min heating rate. TG/DTG curves revealed three reaction regions. The first region is due to the evaporation of moisture in the coal. The second region can be called the primary reactio...
Effects of different flour, gum and protein types on quality of gluten-free cakes Berk, Eda; Şümnü, Servet Gülüm; Şahin, Serpil; Department of Food Engineering (2016) The main objective of this study was to investigate the influence of flour type, concentration, gum/protein type on rheological, physical and morphological behavior of gluten free cake batter, and to study impact of them on cake quality. In the first part of the study, the effects of partial replacement of rice flour with buckwheat flour, or carob bean flour at different concentrations (10%, 20%, 30%), and addition of different types of gums (xanthan gum, guar gum), or proteins (soy protein and whey protein...

Citation Formats

M. Varol and A. Atımtay, “Effect of biomass-sulfur interaction on ash composition and agglomeration for the co-combustion of high-sulfur lignite coals and olive cake in a circulating fluidized bed combustor,” BIORESOURCE TECHNOLOGY, pp. 325–331, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32320.