Involvement of products of thermal processing of polymer waste into the raw material pool of oil refinery plants

2021 ◽  
Vol 05 ◽  
pp. 42-49
Author(s):  
M.P. Usmanov ◽  
◽  
P.P. Gimaletdinov ◽  
S.F. Valeev ◽  
F.P. Zainullov ◽  
...  

The directions of involving the products of thermal processing of polymer waste into the raw material pool of oil refineries are considered. A detailed analysis of fractions 85-180 oC, 180-360 oC and 360-KK oC, isolated from thermolysis products, has been carried out. Fractions 85-180 °C, 180-360 °C of thermolysis oil are characterized by a high content of organosulfur compounds, which necessitates their hydrotreating before use. After desulfurization, gasoline and diesel fractions can be used in the composition of gasoline and diesel fuels, respectively. The diesel fraction of 180-360 °C of thermolysis oil has a high cetane number and can be considered as a cetane-increasing component. Fraction 360-КК оС thermolysis oil is a potential component of catalytic cracking feedstock. The highest degree of conversion and the yield of valuable components (gasoline, propylene, butane-butene fraction) are achieved during cracking of feedstock containing 30 wt. % of the heavy part of thermolysis oil.

Author(s):  
Kyryl Volodymyrovych Shevchenko ◽  
Andriy Borysovych Grigorov

The article discusses the possibility of using hydrocarbon fractions – products of thermal destruction of polymer raw materials (polyethylene and polypropylene) at atmospheric pressure as components of commercial diesel fuels. This approach allows, on the one hand, to improve the properties of commercial diesel fuel, on the other, to increase the competitiveness of domestically produced products. In addition, the problem associated with the accumulation of polymer waste and their negative impact on the environment is also partially solved. The nature of the dependences between such indicators of the quality of fractions 160–350 °C, 200–350 °C, 240–350 °C as the autoignition temperature, the initial boiling point of the fraction and the cetane number as an indicator characterizing the flammability, has been established. The dependence of the autoignition temperature on the boiling point of the fractions has a polynomial character and indicates a decrease in the autoignition temperature with an increase in the boiling point of the fractions. The dependence of the cetane number on the initial boiling point of the fractions is linear and indicates an increase in the cetane number with an increase in the initial boiling point of the fractions. The dependence of the cetane number on the autoignition temperature of the fractions has a polynomial character and indicates a decrease in the cetane number with an increase in the autoignition temperature of the fractions. It was found that the autoignition temperature of the investigated fractions, regardless of the type of polymer raw material, fluctuates in a rather narrow range, from 229 to 348 ° C, and the cetane number – from 41 to 55 units. Based on the literature data, we note that exactly this range is close to the range that commercial diesel fuels have, and the fractions studied by us can be used in the production of diesel fuel.


2020 ◽  
pp. 55-58
Author(s):  
N.G. Alekperova ◽  
◽  
S.A. Aliyeva ◽  
A.F. Shahverdiyeva ◽  
Yu.A. Abdullayeva ◽  
...  

The article presents the study results of commercial oil from Gerbi Absheron oil field. Conducted research shows that this oil is low sulfur, low paraffin, tarry and heavy. The gasoline fractions obtained can be used as a component of motor gasoline, a feedstock for the catalytic reforming process and to obtain various solvents as well. Light kerosene and diesel fractions are a valuable raw material for the production of jet and diesel fuels of various grades. From residues above 500 °C, commercial oil from Gerbi Absheron oil field without any additives can produce road bitumen grade BNB 50/70 and construction bitumen grade BNB 70/30, which meet basic requirements. According to the study results, the joint processing with the fuel-oil scheme of this oil with Absheron Kyupesi, Pirallahy, Darwin Kupesi and others oils similar to it in terms of their physical-chemical properties can be recommended.


Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1050
Author(s):  
Sarrthesvaarni Rajasuriyan ◽  
Hayyiratul Fatimah Mohd Zaid ◽  
Mohd Faridzuan Majid ◽  
Raihan Mahirah Ramli ◽  
Khairulazhar Jumbri ◽  
...  

The biggest challenge faced in oil refineries is the removal of sulfur compounds in fuel oil. The sulfur compounds which are found in fuel oil such as gasoline and diesel, react with oxygen in the atmosphere to produce sulfur oxide (SOx) gases when combusted. These sulfur compounds produced from the reaction with oxygen in the atmosphere may result in various health problems and environmental effects. Hydrodesulfurization (HDS) is the conventional process used to remove sulfur compounds from fuel oil. However, the high operating conditions required for this process and its inefficiency in removing the organosulfur compounds turn to be the major drawbacks of this system. Researchers have also studied several alternatives to remove sulfur from fuel oil. The use of ionic liquids (ILs) has also drawn the interest of researchers to incorporate them in the desulfurization process. The environmental effects resulting from the use of these ILs can be eliminated using eutectic-based ionic liquids (EILs), which are known as greener solvents. In this research, a combination of extractive desulfurization (EDS) and oxidative desulfurization (ODS) using a photocatalyst and EIL was studied. The photocatalyst used is a pre-reported catalyst, Cu-Fe/TiO2 and the EIL were synthesized by mixing choline chloride (ChCl) with organic acids. The acids used for the EILs were propionic acid (PA) and p-toluenesulfonic acid (TSA). The EILs synthesized were characterized using thermogravimetry analyser (TGA) differential scanning calorimetry (DSC) analysis to determine the physical properties of the EILs. Based on the TGA analysis, ChCl (1): PA (3) obtained the highest thermal stability whereas, as for the DSC analysis, all synthesized EILs have a lower melting point than its pure component. Further evaluation on the best EIL for the desulfurization process was carried out in a photo-reactor under UV light in the presence of Cu-Fe/TiO2 photocatalyst and hydrogen peroxide (H2O2). Once the oxidation and extraction process were completed, the oil phase of the mixture was analyzed using high performance liquid chromatography (HPLC) to measure the sulfur removal efficiency. In terms of the desulfurization efficiency, the EIL of ChCl (1): TSA (2) showed a removal efficiency of about 99.07%.


Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 590
Author(s):  
Aiban Abdulhakim Saeed Ghaleb ◽  
Shamsul Rahman Mohamed Kutty ◽  
Gasim Hayder Ahmed Salih ◽  
Ahmad Hussaini Jagaba ◽  
Azmatullah Noor ◽  
...  

Man-made organic waste leads to the rapid proliferation of pollution around the globe. Effective bio-waste management can help to reduce the adverse effects of organic waste while contributing to the circular economy at the same time. The toxic oily-biological sludge generated from oil refineries’ wastewater treatment plants is a potential source for biogas energy recovery via anaerobic digestion. However, the oily-biological sludge’s carbon/nitrogen (C/N) ratio is lower than the ideal 20–30 ratio required by anaerobic digestion technology for biogas production. Sugarcane bagasse can be digested as a high C/N co-substrate while the oily-biological sludge acts as a substrate and inoculum to improve biogas production. In this study, the best C/N with co-substrate volatile solids (VS)/inoculum VS ratios for the co-digestion process of mixtures were determined empirically through batch experiments at temperatures of 35–37 °C, pH (6–8) and 60 rpm mixing. The raw materials were pre-treated mechanically and thermo-chemically to further enhance the digestibility. The best condition for the sugarcane bagasse delignification process was 1% (w/v) sodium hydroxide, 1:10 solid-liquid ratio, at 100 °C, and 150 rpm for 1 h. The results from a 33-day batch anaerobic digestion experiment indicate that the production of biogas and methane yield were concurrent with the increasing C/N and co-substrate VS/inoculum VS ratios. The total biogas yields from C/N 20.0 with co-substrate VS/inoculum VS 0.06 and C/N 30.0 with co-substrate VS/inoculum VS 0.18 ratios were 2777.0 and 9268.0 mL, respectively, including a methane yield of 980.0 and 3009.3 mL, respectively. The biogas and methane yield from C/N 30.0 were higher than the biogas and methane yields from C/N 20.0 by 70.04 and 67.44%, respectively. The highest biogas and methane yields corresponded with the highest C/N with co-substrate VS/inoculum VS ratios (30.0 and 0.18), being 200.6 mL/g VSremoved and 65.1 mL CH4/g VSremoved, respectively.


2012 ◽  
Vol 1 (1) ◽  
pp. 169 ◽  
Author(s):  
Aneta Cegielka ◽  
Krzysztof Tambor

<span style="font-family: Times New Roman; font-size: small;"> </span><p>Four formulations of chicken burger were prepared: control product without inulin, and products with 1.0, 2.0 or 3.0 % of inulin (in relation to the weight of meat, fatty raw material, and water), respectively. Physical, chemical and sensory analyses were made to evaluate the effect of inulin on the quality of cooked burgers. The results showed that the application of inulin did not cause significant decrease of the thermal processing yield nor the shear force of the products. However, the addition of inulin resulted in slight, but significant differences (P &lt; 0.05) in chemical composition and energy value of burgers. Burgers of all formulations were acceptable in sensory characteristics. The addition level of inulin not higher than 1.0 %, did not result in deterioration of physical, chemical and sensory quality characteristics of chicken burgers. To improve the nutritional value of chicken burgers, the modification of fatty acid composition is recommended.</p><span style="font-family: Times New Roman; font-size: small;"> </span>


2021 ◽  
Vol 66 (05) ◽  
pp. 106-108
Author(s):  
Aytac Turab qızı Hüseynova ◽  

The Oil Refinery of Heydar Aliyev was created in July 1953 as a new oil refining plant Baki. The combined atmospheric vacuum plant is the main plant at the oil refining factory and its starting capacity produces 6 million tons of crude oil. In 2010, 43,000 tons A-98, 1.18 tons of A-92 and 19,700 tons of gasoline A-80. At the same time, 600 400t kerosene, 214,000 diesel fuels, 214,000 tons. Liquid gas, 267 500t coke and 220 600t. With this investigation, the history of the oil refinery and the details of modernization were considered. 21 out of 24 types of Azerbaijani oil are processed at the Baku Oil Refinery named after Heydar Aliyev, of which 15 types of oil products, including gasoline, aviation kerosene, diesel fuel, fuel oil, petroleum coke, etc. are produced. The plant fully meets the needs of the republic in oil products. In addition, 45% of oil products are exported to foreign countries. Key words: Azerbaijani, oil, recycling, factory, modernization


2018 ◽  
Vol 931 ◽  
pp. 628-633 ◽  
Author(s):  
Sergey V. Fedosov ◽  
Maxim O. Bakanov ◽  
Sergey N. Nikishov

The work considers mathematical models describing thermal processes in the framework of thermal processing of raw material mixture for cellular glass sponging. It is shown that the existing models do not completely reflect the physical processes occurring in the technology of cellular glass production. It is noted that kinetics of cell formation in cellular glass is a promising trend for improving the cellular glass technology.


Author(s):  
K. Malins ◽  
V. Kampars ◽  
R. Kampare ◽  
T. Rusakova

The transesterification of vegetable oil using various kinds of alcohols is a simple and efficient renewable fuel synthesis technique. Products obtained by modifying natural triglycerides in transesterification reaction substitute fossil fuels and mineral oils. Currently the most significant is the biodiesel, a mixture of fatty acid methyl esters, which is obtained in a reaction with methanol, which in turn is obtained from fossil raw materials. In biodiesel production it would be more appropriate to use alcohols which can be obtained from renewable local raw materials. Ethanol rouses interest as a possible reagent, however, its production locally is based on the use of grain and therefore competes with food production so it would implicitly cause increase in food prices. Another raw material option is alcohols that can be obtained from furfurole. Furfurole is obtained in dehydration process from pentose sugars which can be extracted from crop straw, husk and other residues of agricultural production. From furfurole the tetrahydrofurfuryl alcohol (THFA), a raw material for biodiesel, can be produced. By transesterifying rapeseed oil with THFA it would be possible to obtain completely renewable biodiesel with properties very close to diesel [2-4]. With the purpose of developing the synthesis of such fuel, in this work a three-stage synthesis of rapeseed oil tetrahydrofurfurylesters (ROTHFE) in sulphuric acid presence has been performed, achieving product with purity over 98%. The most important qualitative factors of ROTHFE have been determined - cold filter plugging point, cetane number, water content, Iodine value, phosphorus content, density, viscosity and oxidative stability.


2020 ◽  
Vol 5 (4) ◽  
pp. 356-363
Author(s):  
Elena Yu. Panasenkova ◽  
◽  
Olga E. Gruzdeva ◽  
Maria G. Kuznetsova ◽  
◽  
...  

The increased use of disposable plastic consumer packaging, especially in the sanitary and epidemiological conditions of COVID-19, makes it necessary to dispose of the resulting waste. The problem is aggravated by the weak processing of waste, which is stored and not destroyed in nature. In this regard, the purpose of the article is to analyze the problems caused by the consumption and disposal of plastic disposable plastic packaging by retail chains and public catering companies. A brief comparative analysis of the composition and quantities of the plastic waste was carried out. The legal documents governing the waste management in Russia and abroad were studied. The Russian waste recycling market was compared with the foreign ones. Data on polymeric waste(composition, quantity, share in the total mass of waste, cost, and possibility of using as a secondary raw material) were studied. The lack of an effective system for collecting polymer waste and its utilization in Russia was emphasized and compared with Asian, European and American countries. In these countries, there are regulatory documents governing the collection and recycling of plastic products; the production itself is economically attractive. Recommendations aimed to encourage manufacturers to recycle waste were given; options for solving the problem of recycling plastic waste on a legislative, economic and managerial basis were offered.


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