Improvement of quality parameters of reformat obtained on reforming installation at Oil Refinery named after Heydar Aliyev

2020 ◽  
pp. 45-50
Author(s):  
R.G. Ibrahimov ◽  
◽  
Kh. I. Abad-zade ◽  
R.O. Mejidov ◽  
◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Boiling Point ◽  
Octane Number ◽  
Quality Parameters ◽  
Oil Refinery ◽  
Catalytic Reforming ◽  
Initial Boiling Point

Currently, in the atmospheric installation in the cutting of benzene fraction ibp -180 оС to the ibp -85 and 85–180 оС, due to the indefinite rectification of benzole and in the catalytic reforming of benzole-forming hydrocarbons (hexamethylene, hexane, metylcyclopentane) transfer to the fractions 85–180 оС. Therefore, the temperature of initial boiling point of reforming raw is increased up to 95 оС, which significantly decreases the amount of reforming crude. To that end, the paper offers to conduct precise benzene rectification of ibp -180 оС to the ibp -85 and 85–180 оС, and then increase octane number of the fraction ibp -85 adding less toxic additive, to carry out the reforming process in mild regime and perform compounding of the fraction ibp -85 after octane-increasing additive and reformate. In addition, the composition of aromatic hydrocarbons and benzole is dramatically decreased compared to reformat obtained on reforming installation at Oil Refinery named after Heydar Aliyev.

Multicriteria Optimization of the Catalytic Reforming Reactor Unit Using the Genetic Algorithm

2019 ◽  
Vol 19 (6) ◽  
pp. 465-473
Author(s):  
R. Z. Zainullin ◽  
A. N. Zagoruiko ◽  
K. F. Koledina ◽  
I. M. Gubaidullin ◽  
R. I. Faskhutdinova
Keyword(s):  
Genetic Algorithm ◽  
Aromatic Hydrocarbons ◽  
Multicriteria Optimization ◽  
Octane Number ◽  
Research Method ◽  
Chemical Transformations ◽  
Control Parameters ◽  
Catalytic Reforming ◽  
Reactor Unit ◽  
Benzene Content

The study is devoted to multicriteria optimization of the operation of the reactor unit intended for reforming of oil fractions. The optimization is based on the earlier developed mathematical model, which can take into account changes in the temperature and molar consumption of the reaction mixture during chemical transformations, the composition of the feedstock being processed, and the circulation quality and ratio of the hydrogen-containing gas. The following criteria are used in such optimization: octane number, yield of the target product (reformate), content of the sum of aromatic hydrocarbons, and content of benzene. The optimization was implemented using Pareto approximation with the genetic algorithm. Temperatures at the reactor inlets served as the control parameters. As a result of optimization, the sum content of aromatic hydrocarbons decreases from 56 to 45 wt.%, and the octane number measured by the research method (RON) decreases from 92.7 to 90.7 points. The three-criteria optimization is also considered; it provides a decrease in the benzene content from 4 to 3.08 wt.% with a decrease in RON from 92.7 to 91.8 points. In both cases, the decrease in the octane number is admissible, taking into account the fulfilled requirements to the limiting content of benzene and aromatic hydrocarbons in the reformate.

Static and Dynamic Studies of Gasoline in View of its Octane Number and its Toxic Effect

2013 ◽  
Vol 12 (7) ◽  
pp. 451-459
Author(s):  
Ashraf Yehia El-Naggar ◽  
Mohamed A. Ebiad
Keyword(s):  
Toxic Effect ◽  
Aromatic Hydrocarbons ◽  
Octane Number ◽  
Liquid Fuel ◽  
Positive Impact ◽  
Hydrocarbon Composition ◽  
Different Temperatures ◽  
Different Seasons ◽  
The One ◽  
The Impact

Gasoline come primarily from petroleum cuts, it is the preferred liquid fuel in our lives. Two gasoline samples of octane numbers 91 and 95 from Saudi Arabia petrol stations were studied. This study was achieved at three different temperatures 20oC, 30oC and 50oC representing the change in temperatures of the different seasons of the year. Both the evaporated gases of light aromatic hydrocarbons (BTEX) of gasoline samples inside the tank were subjected to analyze qualitatively and quantitatively via capillary gas chromatography. The detailed hydrocarbon composition and the octane number of the studied gasoline samples were determined using detailed hydrocarbon analyzer. The idea of research is indicating the impact of light aromatic compounds in gasoline on the toxic effect of human and environment on the one hand, and on octane number of gasoline on the other hand. Although the value of octane number will be reduced but this will have a positive impact on the environment as a way to produce clean fuel.

scholarly journals Reduction of Polycyclic Aromatic Hydrocarbons (PAHs) in Sesame Oil Using Cellulosic Aerogel

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 644
Author(s):  
Do-Yeong Kim ◽  
Boram Kim ◽  
Han-Seung Shin
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Oil Quality ◽  
Acid Value ◽  
Quality Parameters ◽  
Sesame Oil ◽  
Miscanthus Sinensis ◽  
Polycyclic Aromatic ◽  
And Control

The effect of cellulosic aerogel treatments used for adsorption of four polycyclic aromatic hydrocarbons (PAHs)—benzo[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene [BaP])—generated during the manufacture of sesame oil was evaluated. In this study, eulalia (Miscanthus sinensis var. purpurascens)-based cellulosic aerogel (adsorbent) was prepared and used high performance liquid chromatography with fluorescence detection for determination of PAHs in sesame oil. In addition, changes in the sesame oil quality parameters (acid value, peroxide value, color, and fatty acid composition) following cellulosic aerogel treatment were also evaluated. The four PAHs and their total levels decreased in sesame oil samples roasted under different conditions (p < 0.05) following treatment with cellulosic aerogel. In particular, highly carcinogenic BaP was not detected after treatment with cellulosic aerogel. Moreover, there were no noticeable quality changes in the quality parameters between treated and control samples. It was concluded that eulalia-based cellulosic aerogel proved suitable for the reduction of PAHs from sesame oil and can be used as an eco-friendly adsorbent.

THERMAL NEUTRALIZATION OF CARBON-CONTAINING SLUDGE

2021 ◽  
Vol 3 (1) ◽  
pp. 118-123
Author(s):  
D. YU. UMANSKY ◽  
◽  
M. V. VASINA ◽  
Keyword(s):  
Sulfuric Acid ◽  
Aromatic Hydrocarbons ◽  
Petroleum Products ◽  
Oil Refinery ◽  
Gas Oil ◽  
Hazard Class ◽  
Resinous Substance ◽  
Oil Fractions ◽  
Petroleum Distillates

Acid tar is a resinous substance, which in most cases has a viscous structure. They are obtained as a result of sulfuric acid purification of petroleum distillates, oil residues, in the production of sulfonate additives, in the sulfonation and purification of oils, paraffins, kerosene and gas oil fractions and other petroleum products from aromatic hydrocarbons. Until recently, this type of waste was temporarily accumulated in specially designated areas - acid tar storage ponds, which were located near the oil refinery, which had a significant impact on the environment. The paper considers the process of formation of acid tar on the example of the production of sulfonate additives. The composition of the mixture of acid tar and sulfonate sludge was evaluated, and the hazard class of this type of waste was determined. Methods of utilization of acid tar are studied and a method of utilization of acid tar for the considered production is proposed.

Monitoring of polycyclic aromatic hydrocarbons on agricultural lands surrounding Tehran oil refinery

2015 ◽  
Vol 187 (7) ◽  
Author(s):  
J. Bayat ◽  
S. H. Hashemi ◽  
K. Khoshbakht ◽  
R. Deihimfard ◽  
A. Shahbazi ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Oil Refinery ◽  
Agricultural Lands ◽  
Polycyclic Aromatic

scholarly journals Treatment of industrial mineral oil wastewater – effects of coagulant type and dosage

2017 ◽  
Vol 12 (1) ◽  
pp. 139-145 ◽  
Author(s):  
E. Kweinor Tetteh ◽  
S. Rathilal ◽  
K. Robinson
Keyword(s):  
Oxygen Demand ◽  
Mineral Oil ◽  
Quality Parameters ◽  
Oil Refinery ◽  
Oil And Grease ◽  
Water And Wastewater Treatment ◽  
Dissolved Air Flotation ◽  
Jar Test ◽  
Industrial Mineral ◽  
Oil Wastewater

The use of coagulants is essential in the diverse disciplines of conventional water and wastewater treatment. This work aimed to select an economic and effective coagulant, to minimize the cost of treatment and the oil droplet content of the water, thus enhancing the efficiency of a local South African oil refinery effluent plant recovering water and oil for reuse by treating the industrial mineral oil wastewater. A standard dissolved air flotation jar test preceded evaluation of four coagulants, viz. aluminum sulfate (Alum), aluminum chloride, ferric sulfate and ferric chloride. Chemical oxygen demand, soap oil and grease, total suspended solids and turbidity were determined as water quality parameters to check coagulant efficiency. Removal of over 70% was achieved for each parameter. The results obtained at pH 5 and coagulant dose of 50 mg/L showed that alum was the best pretreatment coagulant for destabilizing and minimizing oil droplets in water, due to its trivalent cationic nature. It was also economically viable.

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