Pyrolysis Characteristics of Phoenix Dactylifera Date Palm Seeds Using Thermo-Gravimetric Analysis (TGA)

Babiker, Mohammed Elamen; Aziz, Abdul; Heikal, Morgan; Yusup, Suzana

doi:10.7763/ijesd.2013.v4.406

Cited by 39 publications

(15 citation statements)

References 23 publications

(20 reference statements)

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“…Hemicellulose decomposes between 160 and 360°C, and cellulose decomposes between 240 and 390°C. The decomposition temperature range of lignin is wider and higher, i.e., between 250 and 700°C [39]. Thus, the first peak in Figure 11, which shows the derivation of the weight change of pure date pits (i.e., differential TGA curve), could be due to the decomposition of hemicellulose, cellulose, and lignin.…”

Section: Thermal Conductivitymentioning

confidence: 97%

Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

Abu-Jdayil

Hittini

Mourad

2019

International Journal of Polymer Science

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This study is aimed at developing a thermoplastic composite based on date pit powder waste for use as a thermal insulator in building industries. Date pits are the by-product of date stoning, either for the production of pitted dates or for the manufacture of date paste. The date pit powder (DPP) used in this study was obtained from the UAE University farm in Al Foah, UAE. DPP waste contents ranging from 0 wt.% to 50 wt.% were used to prepare the DPP-polystyrene composite. Date pit powder was mixed with polystyrene using a melt extruder, and then the mixture was transferred to the hot press to produce the final sample. The thermal and physical characteristics of the produced composites were measured experimentally and analyzed theoretically in terms of date pit and polystyrene properties. The characterized properties of the DPP-polystyrene composites, namely, density, thermal conductivity, water retention, thermal stability, and microstructure, showed that a stable composite material with insulation and construction capacity can be formed by the addition of date pit powder to the polystyrene matrix. The theoretical modeling of the measured thermal conductivity and the scanning electron microscope (SEM) monographs supported the hypothesis of date pit agglomeration in the composite matrix. The prepared composites showed low thermal conductivity (0.0515-0.0562 W/m K at 25°C) and very low density (457-630 kg/m 3 ), thus demonstrating their potential for use as a thermal insulator for building materials. In addition, replacing one-third of the classical construction wall content with DPP-polystyrene composite showed promise for constructive applications as a thermal insulator with 85% reduction in the overall thermal conductivity. Indeed, these properties are similar to those of other conventional insulating materials. This will lead to produce an inexpensive insulation material that exploits a common waste product in date fruit-producing countries.

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Section: Thermal Conductivitymentioning

confidence: 97%

Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

Abu-Jdayil

Hittini

Mourad

2019

International Journal of Polymer Science

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“…Similarly, Eissa and Alghannam (2013) investigated the quality of briquettes produced from date palm residues without identifying the date palm cultivar. The pyrolysis characteristics of the seeds from five date palm cultivars were reported by Babiker et al (2013).…”

Section: Introductionmentioning

confidence: 99%

An Evaluation of the Use of Midribs from Common Date Palm Cultivars Grown in Saudi Arabia for Energy Production

Nasser

2014

BioResources

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This study was conducted to evaluate the suitability of date palm midribs as an alternative source for energy production. The physical properties, chemical constituents, and fuel characteristics of the midribs of five common date palm cultivars (Barhi, Khalas, Khodry, Sukkari, and Sullaj) were determined. In addition to the frond base, the midribs were divided into three distinct parts (base, middle, and top) along the frond. The results showed that both the fibre saturation point and volumetric shrinkage of the date palm midribs were much higher than those of solid wood. There were significant differences in all of the chemical constituents of the midribs between the five date palm cultivars. The date palm midribs were characterised by higher levels of extractives (19.3% for Barhi to 21.7% for Sullaj) and ash contents (3.3% for Khodry to 5.8% for Khalas). The other chemical constituents were within the ranges found for other lignocellulosic materials, including softwood and hardwood. The heating values for the midribs ranged between 17.30 MJ/kg for the Barhi cultivar and 17.89 MJ/kg for the Khodry cultivar. The higher ash content and lower density of date palm midribs makes them less desirable for energy production. It can therefore be concluded that the frond base is not suitable for energy production.

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“…Six varieties of DPS from different regions, obtained from an importer in Penang, Malaysia, were characterized and tested in the gasifier. The DPSs were characterized for their ultimate and proximate analysis and the results were reported elsewhere [16].…”

Section: Methodology Experimental Setup and Proceduresmentioning

confidence: 99%

Experimental and simulation study on steam gasification of phoenix-dactylifera date palm seeds

Babiker

Aziz

Heikal

et al. 2016

Int. J. Automot. Mech. Eng.

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To predict the performance of a fluidized bed gasifier (FBG) using date palm seeds (DPSs) as feedstock, a two-phase model was developed. The model simulates the hydrodynamic, kinetic reaction and steady state operations using the Aspen plus software. Experimental works were performed to study the effect of bed temperature, steam to biomass ratio, gas yield and carbon conversion efficiency. Six varieties of date palm seeds were studied: Deglet Nour (DN), Piarom (PI), Safawi (SA), Mabroom (MA), Suffry (SU), and Aliya (AL). The experimental data was used to validate the prediction model. Materials, process energy balances along with the minimization of free energy method were considered to measure the gas mole fraction. Different reactors of Aspen simulator, namely RYield, RGibbs and RCSTR plus MATLAB models were used to investigate the behaviour of DPSs in the FBG. The results confirmed that there were significant differences between all DPS varieties and treatments. The simulated results showed a good agreement with the experimental data. The gas yield (13.4% increase), lower heating value (11.9% increase), carbon conversion efficiency (9.7% increase and steam decomposition (17% increase) improved considerably with the rise of temperature from 730°C to 800°C. Higher temperatures under steam gasification boosted the overall efficiency of the gasification process. H2 and CO production increased by as much as 35% and 29% (by volume) respectively at 800°C. CH4 contributed to the total yield of gas by a maximum of 13% and 15% for experimental and simulation works, respectively. CO2, on the other hand, showed a tendency to react positively (more than 50% of the total gas yield) at higher temperatures in both experimental and simulation studies.

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Pyrolysis Characteristics of Phoenix Dactylifera Date Palm Seeds Using Thermo-Gravimetric Analysis (TGA)

Cited by 39 publications

References 23 publications

Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

An Evaluation of the Use of Midribs from Common Date Palm Cultivars Grown in Saudi Arabia for Energy Production

Experimental and simulation study on steam gasification of phoenix-dactylifera date palm seeds

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