Prediction indicators of the petroleum products quality using statistical methods

2021 ◽  
Author(s):  
Keyword(s):  
Petroleum Product ◽  
Principal Components ◽  
Autoregressive Model ◽  
Linear Models ◽  
Petroleum Products ◽  
Oil Refinery ◽  
Distributed Lag ◽  
Method Of Principal Components ◽  
Product Method

The possibility of the virtual analyzers models constructing of the petroleum products quality indicators for the atmospheric column of an oil refinery is considered. Comparison of linear models is carried out. It was found that more accurate and less costly are autoregressive models with a distributed lag. The use of such models at the facility improves the efficiency of obtaining information about the quality of petroleum products. Keywords virtual analyzers; autoregressive model; lag; factors; petroleum product; method of principal components; quality

Equipment dentifying Vapor Leakages and Recovery of Petroleum Product Vapor When Stored

2020 ◽  
Vol 05 ◽  
pp. 60-64
Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Environmental Protection ◽  
Petroleum Product ◽  
Petroleum Products ◽  
Oil Products ◽  
Carnot Cycle ◽  
Oil Supply ◽  
Gas Stations ◽  
Environmental Situation ◽  
Vapor Absorption

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.

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.

APLIKASI PENENTUAN KUALITAS KELAPA DENGAN METODE WEIGHETED PRODUCT (WP)

JURTEKSI ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 175-182
Author(s):  
Sulasih Wijayanti ◽  
Fitri Yunita ◽  
Dewi Maharani
Keyword(s):  
Price Determination ◽  
Product Method ◽  
The Government ◽  
System Knowledge ◽  
Selection Of ◽  
Attribute Value

Abstract: Plantation is one of the backbone of the government of Riau Indragiri Hilir (Inhil) Regency. One of them is coconut, with this huge coconut potential, Indragiri Hilir makes plantations in superior products. With the potential of coconuts that really need knowledge and information on the quality of coconuts to be sold, the purpose of this study is to develop coconut quality selection applications using the Weighted Method Product (WP), which can solve problems for users is prospective coconut sellers to get information. Therefore to find out the price and quality of coconuts using the weighted product method is a method that is supported by using multiplication for attribute value attributes, where the value must be raised first using the required attributes. Using the Weighted Product (WP) method according to the replacement request , then implemented into a system that determines rather than at each price determination and weight The source of system knowledge is obtained by collecting data and information. With this application, it helps the community to determine the quality of coconuts for coconut buyers and farmers. Keywords: selection of coconut quality, Weighted Products (WP) Abstrak: Perkebunan merupakan salah satu tulang punggung perekonomian Kabupaten Indragiri Hilir (Inhil) Riau. Salah satu nya adalah kelapa, dengan potensi kelapa yang begitu besar ini, Indragiri Hilir menjadikan perkebunan kelapa dalam sebagai produk unggulan, Dengan potensi kelapa yang begitu besar terkadang kurangnya pengetahuan dan informasi akan kualitas kelapa yang akan dijual, tujuan penelitian ini untuk membangun sebuah aplikasi pemilihan kualitas kelapa menggunakan Metode Weighted Product (WP), yang dapat menyelesaikan permasalahan bagi pengguna yaitu calon penjual kelapa untuk mendapatkan informasi. Maka dari itu untuk mengetahui harga dan kualitas kelapa dengan menggunakan metode weighted product merupakan  metode penyelesaian dengan menggunakan perkalian untuk menghubungkan nilai atribut, dimana nilai harus dipangkatkan terlebih dahulu dengan bobot atribut yang bersangkutan.Dengan menggunakan metode Weighted Product (WP) pada pendukung keputusan, kemudian diimplementasikan kedalam sebuah sistem yang menentukan tingkat kepentingan pada setiap kriteria yaitu harga dan bobot Sumber pengetahuan sistem di peroleh dengan mengumpulkan data-data dan informasi.Dengan adanya aplikasi ini mampu membantu masyarakat untuk menentukan kualitas kelapa kepada para pembeli kelapa dan petani. Kata kunci : pemilihan kualitas kelapa,Weighted Product (WP)

scholarly journals A global scientific literature of research on water quality indices: trends, biases and future directions

2014 ◽  
Vol 26 (3) ◽  
pp. 245-253 ◽  
Author(s):  
Maria Tereza Ribeiro Alves ◽  
Fabrício Barreto Teresa ◽  
João Carlos Nabout
Keyword(s):  
Water Quality ◽  
Linear Models ◽  
Scientific Literature ◽  
Information Criterion ◽  
The United States ◽  
Water Index ◽  
Resource Managers ◽  
Quality Of Water ◽  
Number Of Publications

AIM: Water quality has been the subject of many recent studies, moreover, the physical, chemical and biological parameters of water are used to investigate water quality and can be combined into a single index, the Water Quality Index (WQI), for use by water resource managers and the general public. The aim of this study was to use scientometrics to evaluate how water quality has been addressed in the international scientific literature. METHOD: For the quantitative analysis of the publications on WQI, we used the search database SCOPUS (http://www.scopus.com). The search was performed using the words "QUALIT* WATER* INDEX*" in papers published in all databases (through 2011). RESULTS: We found 554 articles that dealt with the use of WQI the number of publications has increased significantly over the last 20 years. India had the most studies, with 177 articles, followed by China, Brazil and the United States. These four countries together published 57% of studies on WQI. We generated 15 linear models to explain the number of publication by study sit (country). According to the Akaike Information Criterion (AIC), the best model to explain the number of publications by country was the model that combined Sanitation and Public Supply. CONCLUSION: Finally, this paper presents the state of scientific literature on WQI and demonstrates the growing interest of the scientific community in this issue, which is certainly due to the importance of the quantity and quality of water for human supply, economics, health and the conservation of water resources.

scholarly journals Association between temperature and back pain among lumbar disc herniation patients

2020 ◽  
Author(s):  
Cai Chen ◽  
Dandan Wang ◽  
Fanjie Liu ◽  
Hao Qin ◽  
Xiyuan Li ◽  
...  
Keyword(s):  
Back Pain ◽  
Ambient Temperature ◽  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Linear Models ◽  
Lumbar Disc ◽  
Average Temperature ◽  
Distributed Lag ◽  
And Gender ◽  
The Relationship

AbstractPurposeThis paper was designed to critically provide empirical evidence for the relationship between temperature and intensity of back pain among people with lumbar disc herniation (LDH).MethodsDistributed lag linear and non-linear models (DLNM) was used to evaluate the relationship between lag-response and exposure to ambient temperature. Stratification was based on age and gender.ResultsWhen daily average temperature was on the rage of 15-23□, the risk of hospitalization was at the lowest level for men group. About below 10□, risk for male hospitalization could keep increase when lag day were during lag0-lag5 and lag20-lag28. 40<age≤50 group was little affected when they exposed to ambient temperature.

scholarly journals Analysis of the migration of a pollutant in the soil structure

2019 ◽  
pp. 130-134
Author(s):  
Maria Popa ◽  
Loredana Irena Negoita
Keyword(s):  
Grain Size ◽  
Physical Properties ◽  
Petroleum Product ◽  
Soil Structure ◽  
Petroleum Products ◽  
Depth Of Penetration ◽  
Liquid Petroleum Product ◽  
Accidental Pollution ◽  
Experimental Laboratory ◽  
First Time

This paper presents a study on the migration into a soil structure of a pollutant, a liquid petroleum product. Accidental pollution with a liquid petroleum product can also be considered to crack a transport pipeline. This leads to the displacement of the pollutant in the soil structure, both horizontally and vertically. The study presents an analysis of the migration velocity in the soil structure, with certain physical properties, of both the soil and the pollutant petroleum product. The penetration of petroleum products to a certain depth in soil is influenced by its humidity, grain size and density, pollution intensity, viscosity and pollutant density. It was possible to calculate for the first time at the experimental laboratory level the depth of penetration of the pollutant.

scholarly journals HYGIENIC EVALUATION OF THE QUALITY OF DRINKING WATER AND RISKS FOR THE HEALTH OF THE POPULATION OF THE PRIMORYE TERRITORY

2019 ◽  
Vol 98 (1) ◽  
pp. 94-101 ◽  
Author(s):  
Pavel F. Kiku ◽  
L. V. Kislitsyna ◽  
V. D. Bogdanova ◽  
K. M. Sabirova
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Potable Water ◽  
Distribution Network ◽  
Petroleum Products ◽  
Carcinogenic Risk ◽  
Risk Profile ◽  
Calcium And Magnesium ◽  
The Individual

Ntroduction. The assessment of water quality and safety of centralized water supply systems in the Primorsky Krai was carried out in order to assess hygiene levels of public health risks associated with drinking water from the distribution network. Material and methods. The data of laboratory studies on sanitary and chemical parameters in drinking water of the distribution network of the Primorsky region were used. Hygienic assessment of drinking water was carried out according to regulatory requirements, the effect of summation of biological effect was calculated. The work used methodological recommendations for calculating the index of chemical water pollution and the utility coefficient, as well as a guide for assessing the health risks of the population when exposed to chemicals of a non-carcinogenic and carcinogenic nature. Non-carcinogenic and carcinogenic risks were calculated for all potable water of centralized water supply based on the average daily intake dose and the reference dose of chemicals supplied with drinking water. The risk profile for carcinogenic and non-carcinogenic effects was achieved by comparing exposure levels with reference concentrations (safe) for human health. The risk profile for the combined effects of chemical compounds is based on the calculation of the hazard index (HI). A study on carcinogenic risk was carried out for substances that are identified as carcinogens according to the classification of an international agency for the study of cancer. For the analysis and statistical processing of information, the program "MS Excel" was used. Results. An assessment of the sanitary and epidemiological safety of centralized systems of domestic and drinking water supply in the region showed that the highest contribution to poor health is made by the content of arsenic, nitrates, iron, silicon, and petroleum products in drinking water. According to the values of hazard indices, the skin and mucous membranes, the central nervous system, the immune system, the endocrine system, the circulatory and digestive organs are exposed to adverse effects from chemicals in drinking water. The individual carcinogenic risk ranges from negligibly small to the upper limit of acceptable carcinogenic risk. Assessment of the potable water value indicator revealed a deficit situation in calcium, sodium, fluorine and general mineralization of water. The risk assessment for arsenic, tetrachlorethylene, and chloroform, which have carcinogenic properties and are the most important pollutants of drinking water, has shown that the individual risk levels for these substances are within the first and second ranges, which corresponds to the allowable and maximum allowable risk. Discussion. Arsenic concentration in adults was found to be not detected with risks greater than one, while for children, the non-carcinogenic risk from arsenic exceeded the level of safe exposure (HQ> 1), because children are more susceptible to toxic substances due to their relatively large volume of respiration and the rate of gastrointestinal absorption (due to greater permeability of the intestinal epithelium), and also due to the immature system of detoxification enzymes and a relatively lower rate of excretion of toxic chemicals. According to the level of non-carcinogenic risk for children, nitrates follow arsenic. Nitrates have a hypoxic effect, increasing the concentration of the irreversible form of hemoglobin - methemoglobin. The toxicity of nitrates is related to their transformation into the human body into nitrosamines. As a result, the child's organism responds more sharply than in adults to the presence of chemicals in the water. The general mineralization of drinking water is one of the integral index of the quality of drinking water. Calcium and magnesium deficiency can be an independent risk factor for the development of various diseases and manifest pathologies of the cardiovascular system: coronary heart disease, hypertensive disease, myocardial infarction, etc. The tap water is known to be is not overloaded with carbonates, since they can lead to spoilage of water pipes. Therefore, to enrich the water with calcium and magnesium, the technology of creating bottled water uses mineral additives, which means that such water can become an additional source of minerals. Conclusion. Sanitary and hygienic assessment of centralized systems of domestic and drinking water supply in the Primorsky Territory has shown that the quality of drinking water depends on the concentration of arsenic, nitrates, iron, silicon and petroleum products. It should be noted that with the daily use of water from the distribution network throughout life, the likelihood of developing harmful effects on the health of adults and children is insignificant.

Sign in / Sign up

Export Citation Format

Share Document