Combustion and emissions of pulverized olive cake in tube furnace

Al‐Widyan, Mohamad I.; Tashtoush, Ghassan; Hamasha, Abdelslam M.

doi:10.1016/j.enconman.2005.08.007

Cited by 29 publications

(16 citation statements)

References 10 publications

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“…The found fixed carbon values were between 16.52% and 16.84%, while volatile matter was around 69%. Similar results were obtained in the investigations conducted on olive cake by Al-Widyan et al (2006), Mirande et al (2007) and Chouchene et al (2012), where fixed carbon was between 9.94 and 23.4%, while volatile matter was between 67.7 and 80.19%. High volatile matter content indicates that during combustion most of the biomass material will volatilize and burn as gas within the system.…”

Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

“…The samples were compared against CEN/TS 14961:2005 as the referent standard for solid biofuels quality. Table 1 shows that moisture content was approximately (7.00-7.31%) in both samples, which is similar to that of olive cake, as described in the available literature (Al-Widyan et al, 2006;Mirande et al, 2007;Chouchene et al, 2012). Moreover, ash content was somewhat above 7.0% which is a value higher than expected, but it remains within the upper limit of the CEN/TS 14961:2005 standard; high content of ash could be an effect of soil fertilization during rapeseed cultivation.…”

Section: Rapeseed Cake As Substrate In Anaerobic Digestionmentioning

confidence: 69%

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Reuse of rapeseed by-products from biodiesel production

Krička

Matin

Voća

et al. 2015

Span. j. agric. res.

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The objective of this paper is to investigate usability of rapeseed cake from biodiesel fuel production as an energy source. For this research, rapeseed was grown at the research site of the Faculty of Agriculture in Zagreb, Croatia. The investigated rapeseed cake, residue from cold pressing, was divided in two groups of samples. The first group was a mix of three varieties (Bristol, Express and Navajo), while the other group consisted of three hybrids (Artus, Baldur, Titan). The utilization of rapeseed cake for energy via two routes was evaluated; namely, utilization of rapeseed cake as (1) solid biofuel (pellets) with addition of 3% of glycerol, and (2) as substrate in anaerobic digestion (AD). In investigation of cake as solid fuel, proximate (moisture content, ash content, fixed carbon and volatile matter), ultimate (content of carbon, sulphur, hydrogen, oxygen and nitrogen) and physical and calometry analyses (abrasion, diameter, length, density, higher and lower heating value were carried out. As for its use in AD, production of biogas during 40 days was monitored with a view of assessing the use of digested residue as fertilizer in agricultural production. Both groups of digested residues were analysed (pH, electroconductivity, moisture content, ash content, content of nitrogen and carbon, C/N ratio, content of P 2 O 5 , K 2 O, Ca, Mg, Na). The analysis indicated that the investigated raw material is usable as solid and gas biofuel, and digested residue as fertilizer in ecological agriculture. The two groups of samples analysed here did not show significant differences. Additional keywords: rapeseed cake; Brassica napus; pressing; pelletizing; biogas production; proximate and ultimate analysis Abbreviations used: AD (anaerobic digestion); D (diameter); EC (electroconductivity); EU (European Union); HHV (higher heating value); L (lenght); LHV (lower heating value) Citation: Krička, T.; Jurišić, V.; Bilandžija, N. (2015). Reuse of rapeseed by-products from biodiesel production. Spanish Journal of Agricultural Research, Volume 13, Issue 1, e02-007, 9 pages. http://dx

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Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

Section: Rapeseed Cake As Substrate In Anaerobic Digestionmentioning

confidence: 69%

Reuse of rapeseed by-products from biodiesel production

Krička

Matin

Voća

et al. 2015

Span. j. agric. res.

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“…Thus, the observed temperature peak was mainly due to the intense combustion of volatiles near the burner. Tarelho et al (2011) andAl-Widyan et al (2006) have reported similar results.…”

Section: Effect Of Coal Blend Ratio On Combustion Temperature and Comsupporting

confidence: 74%

Co-Firing Ramie Residue with Supplementary Coal in a Cyclone Furnace

et al. 2012

BioResources

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a Co-firing ramie residue with coal was carried out in a thermogravimetric analyzer and a cyclone furnace to evaluate the effects of coal fraction (0 to 30 wt. %) on combustion performance. Thermogravimetric analysis (TGA) results showed that devolatilisation was the predominant process when the coal percentage in the blend was below 30 wt. %. For pure biomass firing in the cyclone furnace, an optimum equivalence ratio (ER =1.16) was found. Coal additions (0 to 30 wt. %) led to less slagging/fouling problems, higher combustion temperature and higher combustion efficiency along with low pollutant emissions, while the improvement in combustion temperature was weakened as the coal blend ratio exceeded 20 wt.%. The maximum temperature in the cyclone furnace increased from 1215 to 1319°C as the coal fraction increased from 0 to 30 wt.%.

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“…Small quantity of oxygen was enough to yield low emission factors of volatile products and PAH with values of each organic compound below 1000 mg/kg of olive solid waste [8]. However, data on the behaviour and emission characteristics of OSW are not abundant in literature data and extremely depend on their nature and origin [7,17]. Knowledge of the solid thermal decomposition mechanism of the Tunisian OSW was required to evaluate the possibility and the conditions for using OSW in an environmentally friendly process.…”

Section: Introductionmentioning

confidence: 98%