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Tytuł:
Gamma-C₂S Synthesis from Fly Ash of Fluidize-Bed Boiler for CO₂ Capture
Autorzy:
Na, S.
Kang, S.
Lee, S.
Song, M.
Powiązania:
https://bibliotekanauki.pl/articles/1401357.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.-t
Opis:
This paper describes the CO₂ capture performance of cement blended paste incorporating gamma-dicalcium silicate (gamma-C₂S) made with industrial by-products, by taking into consideration of effect of CaCO₃, fly ash replacement ratio under the sintering process. X-ray diffraction method was conducted in order to quantitatively investigate the gamma-C₂S content. CO₂ capture performance of mortar sample incorporating gamma-C₂S was investigated by means of compressive strength test using accelerated carbonation chamber. The experimental results revealed that the kind of CaCO₃ would affect the affect the formation of gamma-C₂S after the sintering with respect to the XRD-Rietveld analysis. Moreover, it is confirmed that compressive strength of mortar sample incorporating gamma-C₂S has the same tendency at curing age of 3, 7 and 28days. Blended mortar sample made with 10 wt.% replacement ratio of gamma-C₂S had high compressive strength value compared to normal mortar sample, therefore, incorporating gamma-C₂S had a positive effect on the compressive strength after accelerated carbonation. Finally, the waste foundry sand powder may be alternative to produce gamma-C₂S.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1282-1285
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the electron capture process in semiclassical plasma
Autorzy:
Seisembayeva, M. M.
Dzhumagulova, K. N.
Ramazanov, T. S.
Powiązania:
https://bibliotekanauki.pl/articles/146223.pdf
Data publikacji:
2016
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
capture time
differential cross-section
partially ionized plasma
perturbation theory
effective interaction potential
electron capture radius
Opis:
In this work, the process of electron capture in partially ionized plasma is considered. Electron- -atom interaction was described by the effective interaction potential, which takes into account the screening effect at large distances and the diffraction effect at the small distances. The results of numerical calculations of the electron capture radius, differential cross-section for different values of the coupling and density parameters are presented. The differential cross-section was obtained on the basis of perturbation theory and also by solving of the equation of motion of the projectile electron.
Źródło:
Nukleonika; 2016, 61, 2; 201-205
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electron capture negative ion mass spectra of some freon derivatives
Autorzy:
Asfandiarov, N.
Pshenichnyuk, S.
Fal’ko, V.
Wnorowska, J.
Wnorowski, K.
Szamrej-Foryś, I.
Powiązania:
https://bibliotekanauki.pl/articles/148517.pdf
Data publikacji:
2003
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
negative ions
electron capture
freon derivatives
Opis:
The temperature dependence of dissociative attachment has been investigated in the temperature range 350-575 K for two freon derivatives 1,1,1-C2H3F2Cl and C2F5Cl using Electron Capture Negative Ion Mass Spectra (ECNI MS). The temperature dependence for 1,1,1-C2H3F2Cl is similar to that observed in the case of CF3Cl reported by Illenberger et al. In contrast, C2F5Cl exhibits quite a different spectrum and its temperature behavior. It has been suggested that sigma*C-Cl delocalization onto two empty orbital leads to Cl- ion formation in two different resonance states.
Źródło:
Nukleonika; 2003, 48, 2; 83-88
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Affirming Length of Body or Part/s and Weight There of as a Determinant of Capture Area of Spider Web
Autorzy:
Sanphui, Priyankar
Dey, Subhabrata
Mukherjee, Dipsmita
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1193621.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Araneidae
Capture area
Tetragnathidae
orb web
Opis:
A spider web is a device created by a spider out of proteinaceous silk extruded from its spinnerets, primarily to trap its prey. Among spiders, members of orb weavers (Families Araneidae, Nephilidae and Tetragnathidae) are unique for their webs of geometric precision. Web size and design may vary with the prey size, food availability and body dimensions. However, not all body dimensions are equally relevant to web design. Present study was conducted in the Happy Valley Tea Estate Darjeeling, West Bengal in order to affirm the query, does length of body or part/s and weight govern the capture area of spider web. Measures of the web structure were noted using a slide calipers. Equally several individuals of the orb weaving species that were taken into consideration were brought to the laboratory not only to measure the body/leg length under microscope but also for taxonomic evaluation. Present discourse is on the data generated during May – August, 2016. Our study was limited to the webs of Neoscona rumpfi (Thorell) (Araneidae) and Leucauge decorata (Blackwall) (Tetragnathidae). A total of 19 and 21 webs of the respective species were analyzed. Capture areas were calculated following Herberstein and Tso (2000). The result suggests that body length relates positively with the capture area of both the spider webs. However leg length, 4th leg plays a significant role in determining the capture area. Thus the present study once again confirms the fact that the capture area of spiders’ web is largely dependent on the body dimensions. However it is also important to remember that capture area of a particular species depend on dimension of specific body part/parts.
Źródło:
World Scientific News; 2017, 71; 105-117
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of CO2 capture efficiency in post combustion CCS technology in terms of varying flow conditions
Autorzy:
Niegodajew, P.
Asendrych, D.
Drobniak, S.
Powiązania:
https://bibliotekanauki.pl/articles/240433.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CO2
CCS
post-combustion capture
chemical absorption
CFD
absorpcja chemiczna
Opis:
The paper deals with the computational fluid dynamics modelling of carbon dioxide capture from flue gases in the post combustion-capture method, one of the available carbon capture and storage technologies. 30% aqueous monoethanolamine solution was used as a solvent in absorption process. The complex flow system including multiphase countercurrent streams with chemical reaction and heat transfer was considered to resolve the CO2 absorption. The simulation results have shown the realistic behaviour and good consistency with experimental data. The model was employed to analyse the influence of liquid to gas ratio on CO2 capture efficiency.
Źródło:
Archives of Thermodynamics; 2013, 34, 4; 123-136
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD modelling of CO2 capture in a packed bed by chemical absorption
Autorzy:
Asendrych, D.
Niegodajew, P.
Drobniak, S.
Powiązania:
https://bibliotekanauki.pl/articles/185228.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
carbon dioxide
carbon capture and storage (CCS)
2-phase flow
chemical absorption
computational fluid dynamics (CFD)
dwutlenek węgla
wychwytywanie i składowania dwutlenku węgla (CCS)
strumień 2-fazowy
absorpcja chemiczna
dynamika płynów (CFD)
Opis:
The paper deals with numerical modelling of carbon dioxide capture by amine solvent from flue gases in post-combustion technology. A complex flow system including a countercurrent two-phase flow in a porous region, chemical reaction and heat transfer is considered to resolve CO2 absorption. In order to approach the hydrodynamics of the process a two-fluid Eulerian model was applied. At the present stage of model development only the first part of the cycle, i.e. CO2 absorption was included. A series of parametric simulations has shown that carbon dioxide capture efficiency is mostly influenced by the ratio of liquid (aqueous amine solution) to gas (flue gases) mass fluxes. Good consistency of numerical results with experimental data acquired at a small-scale laboratory CO2 capture installation (at the Institute for Chemical Processing of Coal, Zabrze, Poland) has proved the reliability of the model.
Źródło:
Chemical and Process Engineering; 2013, 34, 2; 269-282
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Telecommunications, Universal Service and Poverty in Mexico: a Public Policy Assessment (1990-2008)
Autorzy:
Casanueva-Reguart, C.
Pita, S. A.
Powiązania:
https://bibliotekanauki.pl/articles/309124.pdf
Data publikacji:
2010
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
development
digital divide
market power
regulatory capture
social inclusion
universal service
Opis:
This article analyzes the design and implementation of telecommunications service policies targeted at the poorest regions of Mexico (1990-2008). It begins by defining universal access and service policies, their economic and social rationale. Secondly, it discusses the scope of public policies on universal service provision designed by Mexican authorities to achieve the goal of universal access. Thirdly, the paper analyzes the distributive effects of this set of policies among the poorest sectors of the population. The sources on which this research was based were two national surveys: the Household Income and Expenditure Survey (2008), and the Household Survey of the Access and Use of Information Technologies (2007). The additional information on regional economic development was based on the poverty indexes by the national population council and economic information given by Mexico's Census Bureau. Additional use was made of the annual reports prepared by Ministry of Communications, statistics published by the Federal Telecommunications Commission and official documents prepared by the government agencies. Finally, a series of in-depth interviews was conducted with the former representatives of the Office of Rural Telephony. Finally, the article discusses, in the light of available evidence, possible explanations for the apparent failure of the universal service policy that was implemented to bring at least basic voice services to Mexico's neediest.
Źródło:
Journal of Telecommunications and Information Technology; 2010, 2; 15-27
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rule of Law Reforms in the Shadow of Clientelism: The Limits of the EU’s Transformative Power in Romania
Autorzy:
Mendelski, Martin
Powiązania:
https://bibliotekanauki.pl/articles/1929896.pdf
Data publikacji:
2011-07-13
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
Romania
EU conditionality
rule of law
clientelism
state capture
Opis:
This study examines the role of theEuropean Union (EU) and domestic actors in the development of the rule of law (judicial quality) in Romania between 2000 and 2009. This study offers an empirical analysis of rule of law development across two key dimensions (1. judicial capacity, 2. judicial impartiality). The findings of the study show that, while the reform actions of domestic change agents and the EU led to improvement on the judicial capacity dimension of the rule of law (efficiency-related aspects), there was considerable persistence on the judicial impartiality dimension (power-related aspects). The limited transformative power of the EU is explained by the strong resistance of clientelistic veto players, who captured the reform process and undermined the creation of de facto rule of law.
Źródło:
Polish Sociological Review; 2011, 174, 2; 235-254
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The capture of the Marienwerder Castle, or where the Teutonic Order’s expansion to the East was stopped
Autorzy:
Almonaitis, Vytenis
Powiązania:
https://bibliotekanauki.pl/articles/676418.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
Marienwerder
Lithuania
Kaunas
Teutonic Order
Baltic Crusades
Vytautas
Jogaila (Jagiełło)
1384
Opis:
The capture of the Marienwerder Castle, or where the Teutonic Order’s expansion to the East was stoppedThis paper analyzes the construction, features, and significance of the Marienwerder castle, and its capture by Lithuanian forces in 1384. Located in what is now Kaunas, the castle represented the furthest eastern point of the Teutonic Order’s penetration into the Grand Duchy of Lithuania. As the sparse historiography on it suggests, the event seems to have been overlooked by contemporary historians. In fact, this castle of the Teutonic Order was not just an ordinary fortress, but a mighty stronghold. A detailed analysis of primary sources allows classifying the capture of Marienwerder as a major event in the war between the Order and the Grand Duchy of Lithuania as well as one of the major victories scored by the latter. It may be concluded that the Teutonic Order’s expansion to the east, which had been started from Torun, was then stopped at Kaunas. Zajęcie zamku Marienwerder albo gdzie zakończyła się ekspansja zakonu krzyżackiego na wschódW artykule analizowane są budowa, znaczenie i zajęcie w 1384 r. zamku zakonu krzyżackiego Marienwerder, który mieścił się na terytorium miasta Kowna. Był to najbardziej wysunięty na wschód zamek krzyżacki, który najgłębiej wchodził w terytorium Wielkiego Księstwa Litewskiego. Skromna historiografia świadczy o tym, że został on zapomniany przez współczesnych historyków. A jednak mowa jest tu nie o zwykłej rezydencji zakonu, a o potężnej twierdzy. Szczegółowa analiza źródeł pierwotnych pozwala uważać zajęcie zamku Marienwerder za jedno z najważniejszych wydarzeń w wojnie między zakonem krzyżackim a Wielkim Księstwem Litewskim, jak również jednym z największych zwycięstw tego ostatniego. Można również twierdzić, że ekspansja zakonu na wschód, rozpoczęta od Torunia, zakończyła się na Kownie.
Źródło:
Acta Baltico-Slavica; 2017, 41
2392-2389
0065-1044
Pojawia się w:
Acta Baltico-Slavica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Np-237 incineration study in various beams in ADS setup QUINTA
Autorzy:
Kilim, S.
Strugalska-Gola, E.
Szuta, M.
Bielewicz, M.
Tyutyunnikov, S. I.
Furman, W. I.
Adam, J.
Stegailov, V. I.
Powiązania:
https://bibliotekanauki.pl/articles/146295.pdf
Data publikacji:
2018
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Np-237
accelerator-driven system
ADS
gamma-ray spectrometry
fission
neutron capture
Opis:
Neptunium-237 samples were irradiated in a spallation neutron fi eld produced in accelerator-driven system (ADS) setup QUINTA. Five experiments were carried out on the accelerators at the JINR in Dubna – one in carbon (C6+), three in deuteron, and one in a proton beam. The energy in carbon was 24 GeV, in deuteron 2, 4 and 8 GeV, respectively, and 660 MeV in the proton beam. The incineration study method was based on gamma-ray spectrometry. During the analysis of the spectra several fi ssion products and one actinide were identifi ed. Fission product activities yielded the number of fi ssions. The actinide (Np-238), a result of neutron capture by Np-237, yielded the number of captures. The main goal of this work was to fi nd out if and how the incineration rate depended on parameters of the accelerator beam.
Źródło:
Nukleonika; 2018, 63, 1; 17-22
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selecting recipes of cement slurry for sealing casing columns in wellbores used for CCS
Autorzy:
Formela, M.
Stryczek, S.
Wiśniowski, R.
Pikłowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/298986.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
cement sheath
cement slurry
cement corrosion
carbon capture and storage (CCS)
carbon dioxide
fly ashes
Opis:
Cement sheath serves primarily as a zonal isolation for the life of the well while protecting and supporting the casing. Nowadays, more and more solutions in the term of different cement slurries compositions appear on the market. One of them is application of fluid ashes as an alternative substitution of cement itself. The purpose of it is to overcome a challenging environment where a high concentration of corrosive gases or fluids exist. An example of that aggressive substance is carbon dioxide. Moreover, this is how it might reduce the cost of the cementing process. Laboratory research was conducted at the Drilling, Oil and Gas Faculty and Materials Science and Ceramics Faculty at AGH University of Science and Technology in Krakow.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 3; 609-618
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of air-bottoming cycle as a heat source for the carbon dioxide capture installation of a coal-fired power unit
Autorzy:
Chmielniak, T.
Lepszy, S.
Czaja, D.
Powiązania:
https://bibliotekanauki.pl/articles/240691.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
absorpcja chemiczna
cykl powietrza
system gazowo-powietrzny
turbina gazowa
air bottoming cycle
CCS
chemical absorption
gas-air systems
gas turbine
Opis:
The installations of CO2 capture from flue gases using chemical absorption require a supply of large amounts of heat into the system. The most common heating medium is steam extracted from the cycle, which results in a decrease in the power unit efficiency. The use of heat needed for the desorption process from another source could be an option for this configuration. The paper presents an application of gas-air systems for the generation of extra amounts of energy and heat. Gas-air systems, referred to as the air bottoming cycle (ABC), are composed of a gas turbine powered by natural gas, air compressor and air turbine coupled to the system by means of a heat exchanger. Example configurations of gas-air systems are presented. The efficiency and power values, as well as heat fluxes of the systems under consideration are determined. For comparison purposes, the results of modelling a system consisting of a gas turbine and a regenerative exchanger are presented.
Źródło:
Archives of Thermodynamics; 2011, 32, 3; 89-101
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Which of the five classical ballet positions is the most demanding for the dancer’s body? An electromyography-based study to determine muscular activity
Autorzy:
Gorwa, Joanna
Kabaciński, Jarosław
Murawa, Michał
Fryzowicz, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27324094.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
motion capture
electromyography
ballet
muscles
turnout
classical dance
przechwytywanie ruchu
elektromiografia
balet
mięśnie
rozjazd
taniec klasyczny
Opis:
The study aimed to determine which of the five classical ballet positions is the most demanding regarding muscular activity, values of external rotation in the hip joints, angular values of foot progression as well as the inclination (tilt) of the pelvis in the sagittal plane. Methods: In this cross-sectional study, 14 female pre-professional ballet dancers (aged 11–16) participated. Participants were tasked with the sequential adoption of five classical ballet positions (CP1–CP5). The electromyographic activity of the muscles of the trunk and the lower limb was recorded with surface electrodes. Kinematic data including hip and knee external rotation, foot progression angle and pelvic tilt were collected using a motion capture system. Results: Symmetric positions CP1 and CP2 were not as demanding as asymmetric CP3–CP5. Higher values of hip and foot external rotation without greater muscular effort in CP2 than CP1 was noticed. Considering asymmetric positions, CP3 did not trigger a greater activity of hip or foot muscular groups than CP4 and CP5. CP4 was characterised by the greatest pelvic anterior tilt and the lowest activity of GM in the forward lower limb. In CP5, forward lower limb entailed a higher activity of muscles supporting the foot than in the remaining positions. Conclusion: In terms of biomechanics, the most demanding classical ballet position in pre-professional dancers is CP4, followed by CP5, CP3, CP1 and CP2. This finding can be applied in educational methodology of dancers, figure skaters, synchronized swimmers, acrobatic gymnasts, rhythmic gymnasts or cheerleaders.
Źródło:
Acta of Bioengineering and Biomechanics; 2020, 22, 4; 3--14
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Doctrine of Discovery and Rule of Capture: Re-Examining the Ownership and Management of Oil Rights of Nigeria’s Indigenous Peoples
Doktryna „odkrycia” i zasada „zawłaszczenia”. Ponowne badanie prawa własności i zarządzania prawami wydobycia ropy naftowej rdzennych ludów Nigerii
Autorzy:
Ugwu, Ikechukwu P.
Powiązania:
https://bibliotekanauki.pl/articles/31348118.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
doctrine of discovery
rule of capture
indigenous peoples in Nigeria
environmental protection
crude oil
colonialism
doktryna odkrycia
zasada zawłaszczenia
rdzenne ludy Nigerii
ochrona środowiska
ropa naftowa
kolonializm
Opis:
The aim of the article is to examine the theories that underpin the ownership and management of oil rights in Nigeria and the need for a new ownership model. The economy of Nigeria is majorly supported by revenues from natural resources, especially crude oil. With the downturn in the country’s economy, the Nigerian Federal Government recently embarked on a series of crude oil discoveries to increase revenue despite the unresolved violations of human rights of the indigenous peoples and environmental abuses committed during oil exploration in the Niger Delta region of the country. The Nigerian government finds justification for this uncontrolled exploration of natural resources in the doctrine of discovery and the rule of capture. The author argues that basing the right of the Nigerian Federal Government to explore natural resources on the two doctrines has negative implications on the rights of indigenous peoples in Nigeria and environmental protection, and is a continuation of the philosophies behind colonialism. Therefore, the article examines the doctrine of discovery, the rule of capture, the colonial philosophies of property rights, and the legal regime regarding ownership of natural resources in Nigeria. It suggests a hybrid ownership model where ownership is shared between indigenous groups and the government.
Celem artykułu jest zbadanie teorii stanowiących podstawę własności i praw do wydobycia ropy naftowej w Nigerii oraz potrzeby opracowania nowego modelu własności. Gospodarka Nigerii opiera się głównie na przychodach z zasobów naturalnych, zwłaszcza ropy naftowej. Wraz z osłabieniem gospodarki kraju rząd federalny rozpoczął poszukiwania ropy naftowej celem zwiększenia przychodów, pomimo nierozstrzygniętych naruszeń praw człowieka ludności tubylczej i nadużyć wobec środowiska naturalnego popełnionych podczas poszukiwań ropy naftowej w regionie delty Nigru. Rząd Nigerii uzasadnia tę niekontrolowaną eksplorację zasobów naturalnych w doktrynie odkrycia (doctrine of discovery) i zasadzie zawłaszczenia (rule of capture). Autor wskazuje, że oparcie prawa nigeryjskiego rządu federalnego do poszukiwań zasobów naturalnych na tych podstawach negatywnie oddziałuje na prawa rdzennej ludności Nigerii i na ochronę środowiska oraz stanowi kontynuację filozofii kolonializmu. W związku z tym w artykule poddano analizie doktrynę odkrycia, zasadę zawłaszczenia, kolonialną filozofię praw własności oraz reżim prawny dotyczący własności zasobów naturalnych w Nigerii. Sugeruje to hybrydowy model własności, w którym własność jest dzielona pomiędzy grupy tubylcze i rząd.
Źródło:
Studia Iuridica Lublinensia; 2023, 32, 3; 253-277
1731-6375
Pojawia się w:
Studia Iuridica Lublinensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Gas Solubility in Ionic Liquids Using the Cosmo-Sac Model
Autorzy:
Jaschik, M.
Piech, D.
Warmuziński, K.
Jaschik, J.
Powiązania:
https://bibliotekanauki.pl/articles/184942.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
vapour-liquid equilibrium
ionic liquids
Henry’s constant
solubility
carbon dioxide
capture
COSMO-SAC model
równowaga par i cieczy
ciecze jonowe
Stała Henry'ego
rozpuszczalność
dwutlenek węgla
Model COSMO-SAC
Opis:
Thermodynamic principles for the dissolution of gases in ionic liquids (ILs) and the COSMO-SAC model are presented. Extensive experimental data of Henry’s law constants for CO2, N2 and O2 in ionic liquids at temperatures of 280-363 K are compared with numerical predictions to evaluate the accuracy of the COSMO-SAC model. It is found that Henry’s law constants for CO2 are predicted with an average relative deviation of 13%. Both numerical predictions and experimental data reveal that the solubility of carbon dioxide in ILs increases with an increase in the molar mass of ionic liquids, and is visibly more affected by the anion than by the cation. The calculations also show that the highest solubilities are obtained for [Tf2N]ˉ. Thus, the model can be regarded as a useful tool for the screening of ILs that offer the most favourable CO2 solubilities. The predictions of the COSMOSAC model for N2 and O2 in ILs differ from the pertinent experimental data. In its present form the COSMO-SAC model is not suitable for the estimation of N2 and O2 solubilities in ionic liquids.
Źródło:
Chemical and Process Engineering; 2017, 38, 1; 19-30
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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