Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Vahid Vajihinejad"'
Publikováno v:
Energies, Vol 14, Iss 23, p 7975 (2021)
In this work, the synthesis of a phosphorylated polyvinyl alcohol (p-PVA)/polyoxometalate (tungsto-phosphate) membrane for the BioGenerator, a bio-electrochemical energy storage technology, is reported. It was shown that bonding of lacunary tungsto-p
Externí odkaz:
https://doaj.org/article/995bb7a2c1634b4885174a3e57985970
Publikováno v:
Global Challenges, Vol 2, Iss 3, Pp n/a-n/a (2018)
Abstract Hydrophobically modified acrylamide copolymers dewater oil sands tailings more effectively than anionic polyacrylamide, but the root causes for this enhanced performance have not been investigated systematically. Polyacrylamide‐poly(ethyle
Externí odkaz:
https://doaj.org/article/eca2097d64ab4a9ba37d00a9850c58aa
Autor:
Iman Entezari, Benoit Rivard, João B. P. Soares, Nicholas Beier, Ward Wilson, Vahid Vajihinejad, Bereket Fisseha
Publikováno v:
The Canadian Journal of Chemical Engineering. 97:2465-2471
Autor:
Vahid Vajihinejad, João B. P. Soares
Publikováno v:
Chemical Engineering Journal. 346:447-457
Oil sands mature fine tailings are stable suspensions of clay particles and residual bitumen in an alkaline aqueous medium. They are formed when bitumen is extracted from oil sands using the Clark hot water process. Polymer flocculants are widely use
Publikováno v:
The Canadian Journal of Chemical Engineering. 97:99-102
Autor:
Vahid Vajihinejad, Kalin I. Penev, Jaydevsinh M. Gohil, Victor Pupkevich, Vassili Glibin, Dimitre Karamanev
Publikováno v:
Energy. 129:237-245
Energy storage is currently one of the most significant problems associated with mass-scale usage of renewable (i.e. wind and solar) power sources. The use of hydrogen as an energy storage medium is very promising, but is hampered by the lack of comm
Publikováno v:
Industrial & Engineering Chemistry Research. 56:1256-1266
Copolymers of acrylamide and cationic comonomers such as diallyldimethylammonium chloride can effectively dewater solid suspensions containing negatively charged fine particles. A good example of such suspensions is oil sands mature fine tailings (MF
Publikováno v:
Separation and Purification Technology. 260:118183
This work investigates how poly(vinylbenzyl trimethylammonium chloride)–poly(VBTMAC)–flocculates oil sands mature fine tailings (MFT). This water-soluble cationic polymer contains pendant benzene rings that make it partially hydrophobic. The posi
Autor:
João B. P. Soares, Vahid Vajihinejad
Publikováno v:
Macromolecular Materials and Engineering. 301:383-389
This study explains how to make rigid polyurethane/mature fine tailings (PU/MFT) foam composites with good mechanical and thermal properties by in situ polymerization. Compared to PU/Cloisite Na+ and PU/Cloisite 30B composites, the novel PU/MFT compo
Publikováno v:
Macromolecular rapid communications. 40(1)
The generation of tailings as a by product of the bitumen extraction process is one of the largest environmental footprints of oil sands operations. Most of the tailings treatment technologies use polymer flocculants to induce solid-liquid separation