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Register a new userReducing Sulfur and Aromatics percentage in Diesel Oil by the Adsorption on Activated Carbon
خفض نسبة الكبريت و العطريات من المازوت باستخدام تقنية الامتزاز على الفحم الفعال
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فيروز موسى البيطار( باحث )
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تم في هذا العمل دراسة عملية تخفيض نسبة الكبريت و العطريات بطريقة الامتزاز باستخدام الفحم الفعال. أظهرت الدراسة تأثير تغير نسبة وزن الفحم إلى وزن المازوت المعالج, على نسبة إزالة الكبريت و المركبات العطرية بدلالة تغيير زمن التحريك (الخلط).
In this work, the study of the process had done in reducing the percentage of sulfur and aromatics in by effective adsorption using active carbon. Where the study showed the effect of weight change in the proportion of coal to fuel oil processor weight, the percentage of sulfur and aromatics removal in terms of changing the stirring time (mix).
References used
S. Yosuke, S. Kazuom, C. Ki-Hyouk, K. Yozo, and M. Isao,2005-“Two-stepsadsorption process for deep desulphurization of diesel oil,” Fuel. . vol. 84, issues 7-8, pp. 903-910
Marko,Muzica,Katica,Sertic-Biondaa,TamaraAdzamica, ZoranGomzia- Optimization of diesel fuel desulfurization by adsorptionon activated carbon. Stefica Podolskiba Faculty of Chemical Engineering and Technology, Oil industry, Lovinciceva bb, 10000 Zagreb, Croatia
Isam A. H. Al Zubaidy, Fatma Bin Tarsh, NooraNaifDarwish, Balsam Sweidan Sana Abdul Majeed,, January 2013- Adsorption Process of Sulfur Removal from Diesel Oil Using Sorbent Materials. Journal of Clean Energy Technologies, Vol. 1, No. 1
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desulfurization study of gas oil is very important, in
order to reduce the resulted pollution from acidic gas SO2, which
results by burning the fuel, and to prevent poisoning of sensitive
catalysts with sulfur, in subsequent processes, and to prev
ent
corrosion of engines and equipment in refineries. So, refineries
have been restricted by very low sulfur content, in their products.
Because the hydrodesulphurization did not demonstrate good
efficiency in reducing the sulfur and aromatics content to the
required limits, it has been to search for alternative or completed
methods for it .One of these processes is the oxidation –extraction
method, which has been studied in our work. We used hydrogen
peroxide as oxidant, and acetonitrile as extraction solvent. We
studied Operation conditions in terms the proportion of oxidant and
extraction solvent to fuel, and we chose the operation temperatures
to suit the specifications of the oxidant and extraction solvent. We
studied diesel specifications, which we applied at it the process of
oxidation and extraction.
The objective of the present work is to determine the operating conditions of an activated carbon filter, based on the characteristics of breakthrough curves. In order to properly design and operate fixed-bed adsorption processes, we apply the concep
t of the mass transfer zone (MTZ) that helps to obtain the evolutions of the operating parameters of the fixed-bed. Phenol solutions were prepared in three initial concentrations of phenol (20, 40, 60 ppm). The experimental data were analyzed by calculating fractional capacity (F), the height of (MTZ) (HZ), the number of unit transfer equivalent (NZ), the amount of phenol eliminated by the bed of activated carbon at the breakthrough (ABP).
3,4-dihydroxybenzoic acid is one of phenolic compounds that exists in olive mill waste water (OMWW) and different industrial wastewater.Commercially activated charcoal was studied as absorbent of polyphenols. The value of specific surface area was 73
6.7189 m2/g. Equilibriums of 3,4-dihyroxybenzoic acid from aqueous solutions on four different particle sizes of the adsorbent with diameters ranged A(1000-2000), B(500-1000), C(250-500), D(125-250)m was examined at different initial concentrations ofabsorbate. The experimental data were analyzed using the Langmuir and Freundlich isotherm models. Both the isotherm models fit the adsorption data. Monolayer absorption capacities Q0 calculated from Langmuir equation were (0.36, 0.23, 0.34, 0.35mmol/g) for the different granular activated carbon sizes (A,B,C,D) respectively. The values of constant Kf calculated from Freundlich equation were (0.75, 0.61, 0.76, 0.79mmol/g) for the four sizes of granular activated carbon (A,B,C,D) respectively.
The results show that the charcoal activated carbon can be used as absorbent for polyphenol compounds.
Thirteen phenotypes of cultivated wild olive were selected during 2007- 2008
from four orchards in Mesiaf region, to study oil percentage and fatty acids
contents in these types for choosing types for oil production, in order to
propagate and cons
erve them in a germplasm, and then to be cultivated
because they have adapted to local climate in this region. The results were
analyzed statistically by using Gen-State program to calculate least significant
differences between values. The results confirmed the high biodiversity in these
studied types, and they were classified into five groups according to their oil
percentage and contents of oleic acid. The oil percentage ranged from 3.9 to
27.3 %, and the fatty acids had significant differences between them, the oleic
acid was in olive oil between 56.7 and 75.5%. The types P1-1 and p1-3 showed
the best results for producing oil.
In this research, has been studied the spread of chromium atoms mechanism, and mechanical and chemical and properties of the diffusion chrome coating layer in low carbon steel, which is considered one of the surface treatment techniques. Where many p
ractical experiences were carried out in the powdery saturation milieu to form a diffusion coating layer containing atomic chromium who will spread inside the painted
surface, and has studied some mechanical and chemical properties after doing diffusion chrome coating.
The tests results showed that the tensile strength and micro hardness and chemical corrosion resistance improved after the diffusion chrome coating, also increased the depth of coating layer By increasing the retention time in the oven and temperature, where this relationship is reflected with curve of the second degree. Conversely ductility decreased.
Search results confirm the possibility of using diffusion chrome coating as a promising treatment in raising the efficiency of machinery elements that prone to oxidation or chemical corrosion in different temperatures.
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