Modeling of the crude oil (or petroleum products) vapor displacement during rail tanks loading

Pshenin, Vladimir; Zaripova, N. A.; Zaynetdinov, Konstantin

doi:10.1080/10916466.2019.1655442

Cited by 8 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The problem of petroleum products loss is gaining relevance in the modern world. This issue confirmed in the publications of many scientists [1][2][3][4][5][6]. Oil industry specialist try to reduce losses.…”

Section: Introductionmentioning

confidence: 76%

Influence of seasonal changes in climatic conditions on losses at oil tanks filling (on example of the Republic of Bashkortostan)

et al. 2020

View full text Add to dashboard Cite

Research objective: determining the effect of Influence of seasonal changes on losses at oil tanks filling (on example of the Republic of Bashkortostan). There are many types of oil losses, but most of all is filling loss. They are polluting the environment on the territory of agricultural and oil facilities. They can lead to fire, explosion at oil storage facilities, agricultural enterprises. Method of research: filling loss directly depend on the daily temperature and atmospheric pressure. The work has worked out the values of temperature and atmospheric pressure for the year. Based on the obtained values of air temperature and atmospheric pressure, the volume of big breathing was calculated. Results of the study: the greatest environmental pollution is observed in the summer. In General, there is a uniform dynamics of changes in big breathing throughout the year on the entire territory of the Republic ofBashkortostan.

show abstract

Section: Introductionmentioning

confidence: 76%

Influence of seasonal changes in climatic conditions on losses at oil tanks filling (on example of the Republic of Bashkortostan)

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In this work, to increase the completeness and selectivity of the extraction of microdispersions of minerals, large particles, or a solid wall, are used, and the rate of adhesion (as well as induction time [20,21]) is two orders of magnitude higher than the rate at which fine particles aggregate among themselves [14]. When studying an aggregation of hydrophobic polydisperse particles, basic mechanisms of the DLVO theory (van der Waals (dispersion) forces and electrostatic interaction) are complemented by "non-DLVO" forces [22][23][24][25][26][27], i.e., surface forces of a structural origin associated with a difference between a water structure of boundary layers and a liquid volume [28][29][30][31][32]. A sweep effect contributes to an increase in the rate of liquid removal from an interphase gap (and, as a result, an increase in an adhesion probability) between hydrophobic particles [32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Studying Flotation of Gold Microdispersions with Carrier Minerals and Pulp Aeration with a Steam–Air Mixture

Evdokimov,

Golikov,

Pryalukhin

et al. 2024

Minerals

View full text Add to dashboard Cite

This work is aimed at obtaining new knowledge in the field of interactions of polydisperse hydrophobic surfaces in order to increase the extraction of mineral microdispersions via flotation. The effect of high velocity and the probability of aggregating fine particles with large ones are used to increase the extraction of finely dispersed gold in this work. Large particles act as carrier minerals, which are intentionally introduced into a pulp. The novelty of this work lies in the fact that a rougher concentrate is used as the carrier mineral. For this purpose, it is isolated from three parallel pulp streams by mixing the rougher concentrate, isolated from the first stream of raw materials, with an initial feed of the second stream; accordingly, the rougher concentrate of the second stream is mixed with the initial feed of the third stream, and the finished rougher concentrate is obtained. In this mode of extracting the rougher concentrate, the content of the extracted metal increases from stream to stream, which contributes to the growth in its content in the end product. Moreover, in order to supplement forces involved in the separation of minerals with surface forces of structural origin in the third flotation stream, the pulp is aerated for a short time (about 15%–25% of the total) with air bubbles filled with a heat carrier, i.e., hot water vapor. Within this accepted flotation method, the influence that the surface currents occurring in the wetting film have on its thinning and breakthrough kinetics is proposed to be in the form of a correction to a length of a liquid slip in the hydrophobic gap. The value of the correction is expressed as a fraction of the limiting thickness of the wetting film, determined by the condition of its thickness invariability when the streams are equal in an interphase gap: outflowing (due to an action of the downforce) and inflowing (Marangoni flows and a thermo-osmotic stream). Gold flotation experiments are performed on samples of gold-bearing ore obtained from two deposits with conditions that simulate a continuous process. Technological advantages of this developed scheme and a flotation mode of gold microdispersions are shown in comparison with the basic technology. The purpose of this work is to conduct comparative tests on the basic and developed technologies using samples of gold-bearing ore obtained from the Natalka and Olimpiada deposits. Through the use of the developed technology, an increase in gold extraction of 7.99% and in concentrate quality (from 5.09 to 100.3 g/t) is achieved when the yield of the concentrate decreases from 1.86 to 1.30%, which reduces the costs associated with its expensive metallurgical processing.

show abstract

“…One of the main environmental impacts of refinery process units is represented by atmospheric emissions, which are typically constituent of CO, CO 2 , SO 2 , NO X , CH 4 , particulates, and volatile organic compounds (VOCs) [1][2][3]. VOCs are emitted from a variety of sources [4][5][6][7][8][9][10][11] and, in recent years, the attention toward the emission of VOCs has been increasing due to the consistent amount of VOCs emitted from different industrial processes and their environmental and health impact [12][13][14]. In addition, VOC emissions can produce odor annoyance [15][16][17], which can have a negative impact on life quality [18,19].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Emission Factors for Hazardous Air Pollutants from Petroleum Refineries

et al. 2021

View full text Add to dashboard Cite

The hazardous air pollutants (HAPs) group is composed of 187 chemicals that are known to be potentially carcinogenic and dangerous for human health. Due to their toxicological impact, HAPs are an increasingly studied class of compounds. Of the different HAPs sources, refineries are one of the major sources. In order to obtain a preliminary assessment of the impact of a refinery in terms of emissions, a useful instrument is the determination of the emission factor (EF). For this reason, this work, focusing on the USA refining scenario, aims to provide evidence for a generic trend in refinery emissions to evaluate a correlation between the plant size and the amount of its emissions, in particular the HAPs emissions. Based on the analysis of the data collected from the U.S. Environmental Protection Agency (US EPA), a general trend in the emissions from refinery plants was established, showing a positive correlation between the HAPs emissions and the refinery size, represented by a value of the Pearson correlation coefficient r close to 1. Once this correlation was highlighted, a purpose of this work became the estimation of an organic HAPs emission factor (EF): from a whole refining plant, the EF of the total organic HAPs is equal to 10 g emitted for each ton of crude oil processed. Moreover, it was also possible to undertake the same evaluation for two specific HAP molecules: benzene and formaldehyde. The benzene and formaldehyde EFs are equal to, respectively, 0.8 g and 0.2 g for each ton of processed crude oil. This work provides a simple rule of thumb for the estimation of hazardous substances emitted from petroleum refineries in their mean operating conditions.

show abstract

Modeling of the crude oil (or petroleum products) vapor displacement during rail tanks loading

Cited by 8 publications

References 1 publication

Influence of seasonal changes in climatic conditions on losses at oil tanks filling (on example of the Republic of Bashkortostan)

Influence of seasonal changes in climatic conditions on losses at oil tanks filling (on example of the Republic of Bashkortostan)

Studying Flotation of Gold Microdispersions with Carrier Minerals and Pulp Aeration with a Steam–Air Mixture

Estimation of Emission Factors for Hazardous Air Pollutants from Petroleum Refineries

Contact Info

Product

Resources

About