Relationships Between Specific Gravities and Higher Heating Values of Petroleum Components

Demırbas, Ayhan; Al‐Ghamdi, Khalid A.

doi:10.1080/10916466.2015.1007384

Cited by 27 publications

(13 citation statements)

References 44 publications

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“…Both oil samples have approximately equal specific gravity, but the variation in density values at ambient temperature can be attributed to the unsaturation degree. Demirbas and Al-Ghamdi [34] studied the relationship between the specific gravities and higher heating values (HHVs) of petroleum components, and they observed that an increase in specific gravity decreases the HHVs and that the decrease is highly regular. This study recorded an HHV value of 52.83, corresponding to a produced biodiesel specific gravity of 0.8039.…”

Section: Discussionmentioning

confidence: 99%

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

2020

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This study investigates the performance of biodiesel produced from distilled waste tire pyrolytic oil through transesterification as a lubricant additive for aqueous drilling fluid systems. Aqueous-based drilling fluids have a high coefficient of friction as compared to oil-based drilling fluids. The inclusion of a biodiesel additive was for smooth application/operation. The friction-reducing physicochemical properties of the additive were analyzed and compared with the guidelinesof the United States specification (ASTM Standard) and the European specification (EN Standard). The chemical structure of the produced biodiesel was analyzed using gas chromatography–mass spectrometry (GC-MS). The results show that the distilled waste tire pyrolytic oil contains aliphatic, naphthenic, and aromatic hydrocarbons. The free fatty acid value reduced from 5.6% (for pyrolytic oil) to 0.64% after the transesterification process. A saponification value of 203.36 mg/g was recorded for the pyrolytic oil, and this value was also reduced to 197.35 mg/g after the transesterification process. The kinematic viscosity was reduced from 11.2 to 5.3 mm2/s for the obtained biodiesel, and this value is within the ASTM D6751 and EN 14214 standard values (1.9 to 6 and 3.5 to 5 mm2/s, respectively). The cetane number (47.75) was obtained for the biodiesel, and this is within the minimum range stipulated in ASTM D6751 guidelines. The produced biodiesel’s chemical structure analysis using GC-MS shows that it comprises of decanoic acid methyl ester and methyl ester. Furthermore, comparative analysis of the quantified friction-reducing physicochemical properties of the additive shows that the biodiesel produced from the distilled pyrolytic oil is a suitable additive for the improved lubrication of the friction-prone metallic parts of drill bits when water-based drilling fluids are employed for drilling oil and gas wells.

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Section: Discussionmentioning

confidence: 99%

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

2020

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“…The liquid fuel characteristics to be measured include specific gravity 60/60 (ASTM D-1289), viscosity (ASTM D-445), distillation properties or IBP/FBP (ASTM D-189), and flash point (ASTM D-93). The heating value was obtained by empirical correlation based on liquid fuel specific gravity (Demirbas & Al-Ghamdi, 2015).…”

Section: Methodsmentioning

confidence: 99%

Design of a Simple Pyrolysis Reactor for Plastic Waste Conversion into Liquid Fuel using Biomass as Heating Source

Kurniawan

Sugiarto

Perdana

2020

Eksergi

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A design that emphasizes simplicity and cost-effectiveness is applied to the plastic pyrolysis reaction system to produce liquid fuel. The reactor is fabricated from the waste refrigerant tank. The energy source for pyrolysis is generated by the combustion of biomass pellets. Forced convection by an electric blower is utilized to enhance the combustion efficiency and thus increase the heating rate with the overall average temperature at 412 °C. The coiled pipe is employed as a condenser system with water as its cooling media. The quantity of liquid product is measured for a different mass of PET-type plastic waste feed, with a maximum value of 17.7% w/w of feed mass is obtained. The physical characteristic of the liquid product is then analyzed using standard methods. It is found that its characteristics have approached the specification of commercial liquid fuel in the domestic market, with a liquid specific gravity of 0.776 and a heating value of 46 MJ/kg.

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“…It measures how heavy or light oil is compared to water: if it is greater than 10, oil floats on water and the oil is called light; if it is less than 10, it sinks and the oil is called heavy. This property indicates the proportion of small and large molecules, which relate to the expected Higher Heating Value (HHV) of the petroleum product (Demirbas and Al-Ghamdi, 2015;EIA, 2019), and the ability of the oil to be refined (in fact the quantity of processes needed to refine it to given specifications). it would not make sense to exclude the processing stage that gives oil liquids and as such, it is included.…”

Section: Erois Estimatesmentioning

confidence: 99%

Peak oil and the low-carbon energy transition: A net-energy perspective

et al. 2021

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Global gross and net-energy of oil liquids production is determined from 1950 to 2050.• Energy required for production is estimated to be 15.5% of the actual gross energy.• Oil liquids become a limit to a rapid and global low-carbon energy transition.• The peak supply vs. peak demand dispute needs to be re-examined.• Focus should be put instead on net-energy transition and wise energy consumption.

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Relationships Between Specific Gravities and Higher Heating Values of Petroleum Components

Cited by 27 publications

References 44 publications

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

Design of a Simple Pyrolysis Reactor for Plastic Waste Conversion into Liquid Fuel using Biomass as Heating Source

Peak oil and the low-carbon energy transition: A net-energy perspective

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