Co-combustion of olive cake with lignite coal in a circulating fluidized bed

Atimtay, Aysel T.; Topal, Hüseyin

doi:10.1016/j.fuel.2003.09.015

Cited by 48 publications

(21 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Table 1, a very good agreement was observed for mixed powder OC in comparison with Refs. [6], [11] and [16]. …”

Section: Validity Of This Studymentioning

confidence: 99%

See 1 more Smart Citation

Olive Cake as a Fuel: A Comparison with Lignite

Yakar¹

2018

IJRASET

View full text Add to dashboard Cite

Olive cake as a solid waste is a fuel which is high in organic content and energy value, low in ash, sulphur dioxide emission and environmentally friend. In the analyses, both olive cakes processed from the seeds of black and yellow olives from south west region of Turkey, Aydın and lignite of Soma Eli and lignite of 0.18 Tuncbilek types of coal. Measurements show that yellow seed olive cake has the least ash content as low as 0.43 %. Although lower heating value of lignite is greater than that of olive cakes, it seems to be high enough in sulphur and ash contents. In addition, the ash content of another olive cake, mixed powder olive cake, has been determined as high as 2.13%. Keywords: Biomass, olive cake, coal, fuel characterization, energy I. INTRODUCTIONEnergy demand is greatly affected by change in the world population and use of technological goods. Increasing trends of these factors require more and more energy despite fact that limited amount of fossil fuels will extinct in a near future. For this reason, human being need to consider other types of energy sources, especially the renewable one. One of the renewable energy sources is the biomass energy, which is most commonly used in the developed and developing countries. Biomass is considered as an important source of energy which is believed to be inexhaustible source and ready for use especially in rural areas. It should be noted that availability of biomass energy supports socio-economic developments in rural areas. Furthermore biomass emissions are low enough compared to coal. Thus use of biomass energy leads lower amount of greenhouse gases and less consumption of fossil fuels. Olive cake (OC) is one of the remarkable biomass energy source. OC is an industrial waste from olive oil production. It is an important type of biomass available in Mediterranean countries. The efficient and proper use of olive cake in energy production enables the production of clean energy and the reusability of this matter, which is the waste of olive oil facilities [1]. The use of OC as a fuel offers big advantages in terms of energy, environment and economy. These advantages are as follows: OC has a low amount of ash. The waste can be used completely to protect the ecologic balance. Furthermore, the emissions are lower than the fossil fuels. Moreover, OC with a high potential for production can be used as high-calorie energy source with low cost when burnt on its own or with coal. There are a lot of studies in literature about the use of olive cakes with such advantages as a fuel; De Las Obras Loscertales et al [2] experimentally investigated the effect of combustion temperature and flue gas recycle composition on pollutant emissions and on the sulphating process, in order to optimize the SO2 retention in circulating fluidized beds (CFBC). They found that SO2 recycle produced an increase in the sulphur retention as a consequence of the higher SO2 concentration existing in the bed. Varol et al. [3] studied co-combustion of Bursa-Orhaneli lignite and woodchips...

show abstract

“…As shown in Table 1, a very good agreement was observed for mixed powder OC in comparison with Refs. [6], [11] and [16]. …”

Section: Validity Of This Studymentioning

confidence: 99%

“…They investigated the effects of static-bed (0.1 and 0.15 mm) height, sand-particle size, air-flow velocity, and OC feeding ratio. Atimtay and Topal [16] investigated the combustion characteristics of olive cake (OC)+coal mixture. They carried out the combustion experiments with various excess air ratios.…”

Section: Introductionmentioning

confidence: 99%

Olive Cake as a Fuel: A Comparison with Lignite

Yakar¹

2018

IJRASET

View full text Add to dashboard Cite

show abstract

“…The exhausted olive cake, a form of biomass, can be used to produce energy by burning the substance [25,26]. Currently in Jordan this is the approach being carried out mostly by mill owners.…”

Section: Co-combustionmentioning

confidence: 99%

Selection of management option for solid waste from olive oil industry using the analytical hierarchy process

Qdais

Alshraideh

2014

J Mater Cycles Waste Manag

View full text Add to dashboard Cite

This paper considers the process of selecting a appropriate olive mill solid waste management option in Jordan. Six alternatives were found to be possible options for olive mill solid waste management. Those alternatives are: animal feed, energy recovery, extraction of useful materials, co-combustion, fertilizers, and disposal without treatment. Prioritization of these six alternatives was performed through the analytical hierarchy process. Management options were prioritized based on three criteria: environmental effects, economical benefits, and the technology involved. Priorities given to each of criteria were evaluated through soliciting experts and olive mills owners opinions. Analytical hierarchy process model results revealed that co-combustion option is most favorable followed by the animal feed alternative and lease favorable is disposal without treatment. Sensitivity of the proposed analytical hierarchy process model was addressed as the priorities may change. Model sensitivity analysis showed that our model decision is robust to moderate changes in priorities. Unless the environmental criteria given a very high priority, co-combustion remains as the most favorable management option.

show abstract

“…Compressed air is injected into the particles feeder (1) with an aim to improve the particles drive. Another flow rate of compressed air is injected into the tube (3) in order to entrain the particles towards the burner (6).If the preheating is necessary, a hot air coming from the preheater (4) should be mixed with the cold mixture of air /olive cake. In the both case, the mixture of air /olive cake goes in the burner (5).…”

Section: A Presentation Of Experimental Devicementioning

confidence: 99%

“…David and al [5] have obtained a fuel gas which has a low calorific value around 4350 kJ/kg. Moreover, gasification of the char can improve its porous structure to produce activated carbon, which is widely used as adsorbent [6]. • The third process is the direct combustion of the olive cake which can be carried out in a fluidized bed like in studies of [7,8] or in form of a pulverized jet.…”

Section: Introductionmentioning

confidence: 99%

New burner of pulverized olive cake: Feasibility and improvements

Bounaouaral

Sautet

Ticha

et al. 2014

2014 5th International Renewable Energy Congress (IREC)

View full text Add to dashboard Cite

This study describes a new experiment to apply the pulverization technology for energy production from solid olive residue (olive cake). This is a contribution to the valorization of olive residue as a source of renewable energy available in the majority of mediterranean countries. A new burner made up of a coaxial cylindrical tube is especially designed and fabricated to produce an axisymetric turbulent reactive pulverized jet. A sample of olive cake comes from Tunisian origin is prepared for the experiment; this sample is crushed, dried and garbled in order to obtain small particles with a size below 200 m. In order to start the combustion of the pulverized olive cake jet and maintain the main flame, two types of pilot flame were used: a central premixed flame of methane/oxygen and an annular diffusion flame of methane. This paper shows the experimental parameters to obtain a feasible jet flame of olive cake in free air. The improvements to the burner in order to enhance the combustion have been presented. The effects of particle size and pilot flame position have been discussed. Results show that the olive cake jet flame is obtained only with particles at a size below 200 m. The combustion with an annular pilot flame ensures better burning conditions than a central pilot flame. The preheating system can improve the olive cake combustion.

show abstract

Co-combustion of olive cake with lignite coal in a circulating fluidized bed

Cited by 48 publications

References 8 publications

Olive Cake as a Fuel: A Comparison with Lignite

Olive Cake as a Fuel: A Comparison with Lignite

Selection of management option for solid waste from olive oil industry using the analytical hierarchy process

New burner of pulverized olive cake: Feasibility and improvements

Contact Info

Product

Resources

About