Membrane Engineering and its Role in Oil Refining and Petrochemical Industry

2016 ◽  
pp. 116-149
Author(s):  
Adele Brunetti ◽  
Miriam Sellaro ◽  
Enrico Drioli ◽  
Giuseppe Barbieri
Keyword(s):  
Petrochemical Industry ◽  
Process Engineering ◽  
Research Trends ◽  
Membrane Technology ◽  
Oil Refining ◽  
Chemical Transformations ◽  
Industrial Growth ◽  
Membrane Engineering ◽  
Molecular Separations ◽  
The Impact

Nowadays, an important contribution to the sustainable industrial growth might come not only from the development of new materials but also from the re-design of process engineering, which leads to the development and the re-designing of more compact and efficient new processes in many areas of applications. As already done in large part of processes in Nature, membrane operations can serve in molecular separations, chemical transformations, water and energy transfer between different phases. Indeed, these technologies well fit the principles of this design philosophy and this is testified by the various applications of membranes in chemical and petrochemical industry and many are the successful examples of processes that have moved from lab-scale to pilot plant up to a demonstration unit in refinery. The main aim of this chapter is to show the main applications of membrane technology in the petrochemical industry and the related current research trends, focusing on the impact that membrane technology can have on the process sustainability.

Assessment of the impact of factors of the working environment on the health of workers in oil refining based on the analysis of morbidity

2020 ◽  
pp. 600-600 ◽  
Author(s):  
I. V. Ginko ◽  
T. M. Sushinskaya ◽  
A. L. Rybina
Keyword(s):  
Comparison Group ◽  
Main Group ◽  
Working Environment ◽  
Oil Refinery ◽  
Oil Refining ◽  
Production Environment ◽  
The Impact

Studies have been conducted to assess the impact of factors of the production environment on employees of the oil refinery ofJSC «Naftan». Significant differences with the comparison group on the indicators of SVT were revealed. Priority nosological forms of employees of the main group are identified.

Biotransformation of Coumarins by Filamentous Fungi: An Alternative Way for Achievement of Bioactive Analogs

2019 ◽  
Vol 16 (6) ◽  
pp. 568-577 ◽  
Author(s):  
Jainara Santos do Nascimento ◽  
João Carlos Silva Conceição ◽  
Eliane de Oliveira Silva
Keyword(s):  
Filamentous Fungi ◽  
Chemical Reactions ◽  
Biological Activities ◽  
Chemical Transformations ◽  
Chemical Structures ◽  
Pattern Structures ◽  
Pharmacological Interest ◽  
Aspergillus Sp ◽  
The Impact ◽  
Related Compounds

Coumarins are natural 1,2-benzopyrones, present in remarkable amounts as secondary metabolites in edible and medicinal plants. The low yield in the coumarins isolation from natural sources, along with the difficulties faced by the total synthesis, make them attractive for biotechnological studies. The current literature contains several reports on the biotransformation of coumarins by fungi, which can generate chemical analogs with high selectivity, using mild and eco-friendly conditions. Prompted by the enormous pharmacological interest in the coumarin-related compounds, their alimentary and chemical applications, this review covers the biotransformation of coumarins by filamentous fungi. The chemical structures of the analogs were presented and compared with those from the pattern structures. The main chemical reactions catalyzed the insertion of functional groups, and the impact on the biological activities caused by the chemical transformations were discussed. Several chemical reactions can be catalyzed by filamentous fungi in the coumarin scores, mainly lactone ring opening, C3-C4 reduction and hydroxylation. Chunninghamella sp. and Aspergillus sp. are the most common fungi used in these transformations. Concerning the substrates, the biotransformation of pyranocoumarins is a rarer process. Sometimes, the bioactivities were improved by the chemical modifications and coincidences with the mammalian metabolism were pointed out.

scholarly journals Membrane Engineering for Green Process Engineering

Engineering ◽  
2017 ◽  
Vol 3 (3) ◽  
pp. 290-298 ◽  
Author(s):  
Francesca Macedonio ◽  
Enrico Drioli
Keyword(s):  
Process Engineering ◽  
Green Process ◽  
Membrane Engineering

The Impact of Regional Differences in Prices and Wages on Economic Growth: The United States in 1890

1979 ◽  
Vol 39 (1) ◽  
pp. 69-85 ◽  
Author(s):  
Philip R. P. Coelho ◽  
James F. Shepherd
Keyword(s):  
United States ◽  
Well Being ◽  
The United States ◽  
City Size ◽  
Cost Of Living ◽  
Real Wages ◽  
Industrial Growth ◽  
Wage Earners ◽  
The Cost ◽  
The Impact

Differences in regional prices and wages are examined for the United States in 1890, together with the relationship between the cost of living and city size, and the determinants of regional industrial growth. Results indicate that regional cost-of-liying differences were sufficiently large so that money wages cannot be used for purposes of comparing the economic well-being of wage earners across regions. Except for the South, money wages and the cost of living were positively correlated. The relative differences in money wages, however, were greater; consequently real wages in high wage-price areas were generally higher.

scholarly journals Chemical interactions between ship-originated air pollutants and ocean-emitted halogens

2021 ◽  
Author(s):  
Qinyi Li ◽  
Alba Badia ◽  
Rafael P. Fernandez ◽  
Anoop S. Mahajan ◽  
Ana Isabel López-Noreña ◽  
...  
Keyword(s):  
Air Pollutants ◽  
Atmospheric Composition ◽  
Chemical Transformations ◽  
Chemical Interactions ◽  
China Sea ◽  
Reactive Halogen Species ◽  
The Impact ◽  
Surface Increase ◽  
Halogen Species

<p>Ocean-going ships supply products from one region to another and contribute to the world’s economy. Ship exhaust contains many air pollutants and results in significant changes in marine atmospheric composition. The role of Reactive Halogen Species (RHS) in the troposphere has received increasing recognition and oceans are the largest contributors to their atmospheric burden. However, the impact of shipping emissions on RHS and that of RHS on ship-originated air pollutants have not been studied in detail. Here, an updated WRF-Chem model is utilized to explore the chemical interactions between ship emissions and oceanic RHS over the East Asia seas in summer. The emissions and resulting chemical transformations from shipping activities increase the level of NO and NO<sub>2</sub> at the surface, increase O<sub>3</sub> in the South China Sea, but decrease O<sub>3</sub> in the East China Sea. Such changes in pollutants result in remarkable changes in the levels of RHS as well as in their partitioning. The abundant RHS, in turn, reshape the loadings of air pollutants and those of the oxidants with marked patterns along the ship tracks. We, therefore, suggest that these important chemical interactions of ship-originated emissions with RHS should be considered in the environmental policy assessments of the role of shipping emissions in air quality and climate.</p>

scholarly journals Damage analysis and assessment of the impact of damage on the operation of supporting structures of oil refining tube furnaces

2020 ◽  
Vol 16 (3) ◽  
pp. 193-202
Author(s):  
Alexander V. Golikov ◽  
Dmitry I. Subbotin
Keyword(s):  
Structural Damage ◽  
Spatial Models ◽  
Physical Nature ◽  
Oil Refining ◽  
Main Research ◽  
Software Products ◽  
Tube Furnaces ◽  
Supporting Frame ◽  
The Impact ◽  
Supporting Structures

Relevance. Due to the widespread use in practice, tubular furnaces were chosen as the object of study of this work. The article provides an analysis of damage to the supporting structures of oil refining tubular furnaces. The causes of damage and the physical nature of the development of damage are established. According to the results of field surveys, it was found that about 10% of the furnaces are operated with damage in the form of significant curvature of the supporting structures that developed as a result of the explosion of the gas-air mixture and the technological product inside the furnace space. The aim of the work is to analyze the damage and assess the impact of damage on the operation of the supporting structures of furnaces. Methods. The main research results were obtained by static numerical analysis of spatial models of furnace frameworks in the LIRA-SAPR software package. This complex belongs to the class of software products that implement the finite element method. Results. According to the results of calculating a series of models of structures, the effect of damage on the operation of the supporting structures of the furnace is determined. Based on the analysis of calculation data for models of tube furnaces with damage and comparison of calculation results for furnace models with structural damage identified during the survey, ways to optimize the design decisions of an industrial furnace are determined. Studies have shown the need to improve the design of tube furnaces in the direction of improving technology and improving the structural form of the supporting frame of the furnace.

scholarly journals Health Risk Assessment of Toxic and Harmful Air Pollutants Discharged by a Petrochemical Company in the Beijing-Tianjin-Hebei Region of China

Atmosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1604
Author(s):  
Tao Zhu ◽  
Furong Li ◽  
Wenfeng Niu ◽  
Zijun Gao ◽  
Yiwei Han ◽  
...  
Keyword(s):  
Air Pollutants ◽  
Solid Phase ◽  
Carcinogenic Risk ◽  
Pollutant Emissions ◽  
Oil Refining ◽  
Pollutant Emission ◽  
Gas Chromatography Mass Spectrometry ◽  
Hazardous Air Pollutants ◽  
Petrochemical Company ◽  
The Impact

Monitoring of toxic and hazardous air pollutants (HAPs) in a petrochemical company in the Beijing-Tianjin-Hebei region of China to assess the impact of HAPs on the health risks of workers in the petrochemical company. The samples were tested by solid-phase adsorption thermal desorption/gas chromatography-mass spectrometry (HJ734-2014), and the pollutant emission list was obtained. According to the pollutant emission inventory, it can be seen that benzene, toluene and xylene are the main components of toxic and harmful air pollutants emitted by the petrochemical enterprise. The method of combining actual monitoring and CALPUFF model prediction was used to evaluate the impact of the toxic and harmful air pollutants emitted by the enterprise on the health of workers. The risk characterization results show that when benzene is the maximum concentration value predicted by the model, it will pose a carcinogenic risk to the factory workers. Therefore, based on the results of this study, it is recommended not to allow residents to live within the predicted concentration range of the model. The results of this study can enable China’s oil refining industry to better understand the characteristics of pollutant emissions from petrochemical companies in the Beijing-Tianjin-Hebei region. Moreover, the results of this study can be used as a policy basis for improving the health of workers in petrochemical enterprises, and are of great significance to the protection of public health.

Research Trends in Information Systems From the Management Discipline Based on Co-Occurrence Analysis

2021 ◽  
pp. 565-581
Author(s):  
Beatriz Forés ◽  
Rafael Lapiedra ◽  
José-María Fernández-Yáñez
Keyword(s):  
Information Systems ◽  
Scientific Community ◽  
Dynamic Capabilities ◽  
Business Practice ◽  
Research Trends ◽  
Systems Research ◽  
Strategic Process ◽  
Information Systems Research ◽  
The Subject ◽  
The Impact

There is a generalised consensus on the notable role that information systems and technologies (IS/IT) play in organisational performance. This evidence has been widely explored and recognised by both business practice and academia; as a result, the literature on information systems has acquired considerable relevance in the field of business administration due to its major role in the strategic process. In order to observe the impact of information systems research on the scientific community, we carried out a bibliometric study based on an analysis of the concurrences of the key words used in publications on the subject. This type of quantitative analysis can reveal the structure that supports a certain topic in a discipline and its evolution, as well as the most relevant related concepts. Specifically, six theoretical clusters were observed and defined: 1) data analytics, 2) electronic intra and inter-organisational exchanges, 3) dynamic capabilities, 4) geographical agglomerations, sustainability and tourism, 5) ERP, and 6) quality.

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