scholarly journals Study the effect of Heavy Oil Fuel Ash on the geotechnical properties of clay soil

2021 ◽  
Author(s):  
Rami Ousta ◽  
Ali Tawalo
Keyword(s):  
Fly Ash ◽  
Heavy Oil ◽  
Clay Soil ◽  
Friction Angle ◽  
Geotechnical Properties ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Power Stations ◽  
Fuel Ash ◽  
Oil Fuel

Power stations are widely spread in Arabic Syrian Republic, unlike most of power stations in the world that work by using coal as the operating fuel, most of Syrian power stations depend on the heavy fuel oil to generate electricity. Although there are a lot of studies about use of the fly ash produced from burning coal, the fly ash resulted by using heavy fuel oil as an operating material for the power stations had less attention. This paper aims to study the effect of this type of fly ash on the geotechnical properties of the clay soil and comparison it with the effect of fly ash resulted by power stations that use the coal. Two percentages of heavy oil fuel ash were mixed with the soil 5% and 10% of the dry soil weight with two curing periods 7 and 28 days. The results indicated that adding heavy oil fuel ash to the soil will decrease the cohesion in addition to increase the internal friction angle. There is not clear effect of the curing periods and the increase in the percentage of fly ash on the Atterberg limits.

Characterization and utilization of fly ash of heavy fuel oil generated in power stations

2014 ◽  
Vol 123 ◽  
pp. 41-46 ◽  
Author(s):  
Yahya S. Al-Degs ◽  
Ayoub Ghrir ◽  
Hani Khoury ◽  
Gavin M. Walker ◽  
Mahmoud Sunjuk ◽  
...  
Keyword(s):  
Fly Ash ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Power Stations

scholarly journals Studies on the Production of Gasoline from Heavy oil (furnace oil) by Thermal Cracking

1970 ◽  
Vol 44 (4) ◽  
pp. 473-478 ◽  
Author(s):  
MS Jamal ◽  
Mohammad Ismail ◽  
M Yunnus Miah ◽  
M Naimul Haque ◽  
Sujit Kumar Banik
Keyword(s):  
Heavy Oil ◽  
Thermo Gravimetric Analysis ◽  
Thermal Cracking ◽  
Light Petroleum ◽  
Petroleum Fraction ◽  
Fuel Oil ◽  
Molar Ratio ◽  
Gravimetric Analysis ◽  
Heavy Fuel Oil ◽  
Thermo Gravimetric

Heavy fuel oil (furnace oil) was thermally cracked by thermal cracker under different parametric conditions such as cracking temperature, molar ratio of heavy oil to diesel and cracking time to optimize the yield of the final product. In this thermal cracking process, the yield was gradually increased with the increase in temperature and time. After a certain temperature and time no significant increase in yield was observed. Thermo gravimetric analysis (TGA) was done to observe the percentage of weight loss with increasing temperature. The obtained cracked oil was fractionated by atmospheric vacuum distillation unit. Products obtained from different experiments under different conditions showed almost similar physico-chemical properties. Optimization was done on the basis of yield (%wt). The optimum yield (56.2%) of light petroleum fraction (gasoline) was obtained under the following experimental conditions: cracking temperature: 445°C; molar ratio of furnace oil to diesel 95:05; and cracking time: 30 min. The properties such as density, water content, ash content, pour point, flash point, viscosity, range of boiling point, sulphur content, carbon residue, octane number etc. of the obtained light petroleum fraction were found almost similar to that of the commercial grade gasoline. Key words: Furnace oil; Thermal cracking; Gasoline; Thermo gravimetric analysis. DOI: 10.3329/bjsir.v44i4.4601 Bangladesh J. Sci. Ind. Res. 44(4), 473-478, 2009

The Strength of Fly Ash-Bottom Ash (FA-BA) Mixtures as Backfill Material in Ground Improvement Works

2013 ◽  
Vol 465-466 ◽  
pp. 937-943
Author(s):  
Abd Rahim bin Hj. Awang ◽  
Wan Hilmi bin Wan Mansor ◽  
Ahmad Yusri Bin Mohamad
Keyword(s):  
Shear Strength ◽  
Fly Ash ◽  
Specific Gravity ◽  
Ground Improvement ◽  
Bottom Ash ◽  
Friction Angle ◽  
Soil Improvement ◽  
Geotechnical Properties ◽  
Raw Material ◽  
Fa Composition

In Malaysia, coal has been used as a raw material to generate electricity since 1988. In the past, most of the wastage of coal burning especially the bottom ash was not managed properly as it was dumped in the waste pond and accumulated drastically. This research has been conducted to explore the physical characteristic and geotechnical properties of fly ash-bottom ash (FA-BA) mixtures that consist of 30% FA, 50% FA, 70% FA and 90% FA by weight. The physical characteristics, that include the specific gravity, particle size distribution and compaction, were tested for each mixture without any curing. However, the geotechnical properties of the mixtures that include the permeability and shear strength had been studied at various curing periods (0, 14 and 28 days) to review the effect of time on the geotechnical properties of the mixtures. The results show that mixtures with higher FA composition have lower value of specific gravity, well-graded, and need less moisture to be compacted efficiently compared to those mixtures with lower FA composition. The results also show that mixtures with higher FA composition have less drainage characteristics but can be improved by prolonging the curing period. The maximum shear strength was obtained at mixture with 50%FA and the value increased with curing periods. The friction angle obtained ranged from 270to 370. It is also found that the mixtures with lower FA composition are more compressible compared to the mixtures with higher FA composition. The results obtained could be used by others to determine the suitability of different FA-BA mixtures for various usage in Geotechnical Engineering work such as for soil improvement work in weak soils or as backfill materials in embankment construction.

Study of heavy fuel oil fly ash for use in concrete blocks and asphalt concrete mixes

2016 ◽  
Vol 4 (2) ◽  
pp. 123-143 ◽  
Author(s):  
Mohammed A. Al-Osta ◽  
Mirza G. Baig ◽  
Muhammad H. Al-Malack ◽  
Omar S. Baghabra Al-Amoudi
Keyword(s):  
Fly Ash ◽  
Asphalt Concrete ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Concrete Blocks ◽  
Oil Fly Ash

A Study of the Short Range Pollution Around a Power Plant Using Heavy Fuel Oil by Analysing Vanadium in Lichens

1983 ◽  
Vol 15 (1) ◽  
pp. 89-93 ◽  
Author(s):  
S. Nygård ◽  
L. Harju
Keyword(s):  
Power Plant ◽  
Chemical Analysis ◽  
Heavy Oil ◽  
Short Range ◽  
Vanadium Content ◽  
Fuel Oil ◽  
Plasma Emission ◽  
Hypogymnia Physodes ◽  
Heavy Fuel Oil ◽  
Dc Plasma

AbstractThe vanadium content of the lichen Hypogymnia physodes was determined in the vicinity of a power plant using heavy oil as fuel. For the chemical analysis a DC plasma emission spectrometer was used. Air dried samplesof the lichen contained between 1–4 and 57 parts per million (ppm) of vanadium. The highest concentrations were found in specimens collected less than 1 km from the power plant. Lichens collected 50 km from the plant contained less than 2 ppm of vanadium.

Spectral examination of fly ash from heavy fuel oil containing added magnesium

1977 ◽  
Vol 27 (6) ◽  
pp. 1614-1615
Author(s):  
M. E. Lapinskaya ◽  
E. S. Shitt
Keyword(s):  
Fly Ash ◽  
Fuel Oil ◽  
Heavy Fuel Oil

scholarly journals The Effect of Variation of Molarity of Alkali Activator and Fine Aggregate Content on the Compressive Strength of the Fly Ash: Palm Oil Fuel Ash Based Geopolymer Mortar

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Iftekhair Ibnul Bashar ◽  
U. Johnson Alengaram ◽  
Mohd Zamin Jumaat ◽  
Azizul Islam
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Alkaline Solution ◽  
Strength Development ◽  
Fine Aggregate ◽  
Palm Oil Fuel Ash ◽  
Alkali Activator ◽  
Fuel Ash ◽  
Oil Fuel

The effect of molarity of alkali activator, manufactured sand (M-sand), and quarry dust (QD) on the compressive strength of palm oil fuel ash (POFA) and fly ash (FA) based geopolymer mortar was investigated and reported. The variable investigated includes the quantities of replacement levels of M-sand, QD, and conventional mining sand (N-sand) in two concentrated alkaline solutions; the contents of alkaline solution, water, POFA/FA ratio, and curing condition remained constant. The results show that an average of 76% of the 28-day compressive strength was found at the age of 3 days. The rate of strength development from 3 to 7 days was found between 12 and 16% and it was found much less beyond this period. The addition of 100% M-sand and QD shows insignificant strength reduction compared to mixtures with 100% N-sand. The particle angularity and texture of fine aggregates played a significant role in the strength development due to the filling and packing ability. The rough texture and surface of QD enables stronger bond between the paste and the fine aggregate. The concentration of alkaline solution increased the reaction rate and thus enhanced the development of early age strength. The use of M-sand and QD in the development of geopolymer concrete is recommended as the strength variation between these waste materials and conventional sand is not high.

scholarly journals ANALISIS PENGARUH WAKTU DAN JARAK PERJALANAN KAPAL TERHADAP BIAYA LOW SULPHUR SURCHARGE

2021 ◽  
Vol 5 (2) ◽  
pp. 107-120
Author(s):  
Gita Kurnia (Univ. Pertamina) ◽  
Maulida Nawadir (Univ. Pertamina)
Keyword(s):  
Negative Relationship ◽  
Fuel Oil ◽  
Linear Regression Method ◽  
Fuel Type ◽  
Heavy Fuel Oil ◽  
Academic Field ◽  
The Public ◽  
Multiple Linear Regression Method ◽  
Oil Fuel ◽  
Ship Emission

AbstractThe danger of ship emission caused by HFO (Heavy Fuel Oil) fuel type has become a serious matter due to its high containment of sulphur as much as 3.50% m/m. The IMO (International Maritime Organization) took action on this problem by releasing new regulation to limit sulphur in the ship fuel as low as 0.50% m/m. This regulation leads to an additional tariff called the LSS (Low Sulphur Surcharge). As an impact, shipping companies charge this fee to customers and ocean freight forwarders, hence there is an increase of the total shipping charges. Meanwhile, the dominant variable which determines the LSS charge amount is not yet known, so it is still uninformative for the public and the academic field. The purpose of this study is to analyse which variable gives the most influence on the amount of the LSS tariff. By using multiple linear regression method, the study finds that the shipping distance variable is the dominant variable with a contribution value of 86.48% and has positive relationship with the LSS tariff. On the other hand, though the voyage time also has influence on the tariff, the effect is weak and it shows negative relationship with the LSS tariff.

scholarly journals The Combustion of Emulsified Glycerol-Heavy Oil Fuel Droplet

2018 ◽  
Vol 5 ◽  
Author(s):  
S. Soulayman ◽  
K. Youssef
Keyword(s):  
Combustion Chamber ◽  
Crude Glycerol ◽  
Applied Pressure ◽  
Empirical Method ◽  
Fuel Oil ◽  
Biodiesel Production ◽  
Heavy Fuel Oil ◽  
Fuel Droplets ◽  
Temperature Combustion ◽  
Oil Fuel

In this work the evaporation of the emulsified glycerol- heavy fuel oil (CG-HFO) droplets with different activator is modeled. The influence of activator gas bubbles volume developments on the evaporation of fuel droplets in the high temperature combustion chamber is studied. The crude glycerol as the secondary product of biodiesel production is used as the first component of the emulsion while the second component is heavy fuel oil. The crude glycerol contains methanol, aromatics, minerals, a little bit biodiesel and water. These materials were pressurized and injected in the chamber with three inputs: the first one is for the CG-HFO, the second one is for activator while the third one is for air for forming the emulsion and then passing to the combustion chamber. The applied pressure is determined according to contents which lead to flame stability of the primary formed emulation. A comparison of calculated results, basing on semi-empirical method, with experimental ones demonstrates the modeling acceptable accuracy.

Sign in / Sign up

Export Citation Format

Share Document