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Recycling of Low-Value Hydrocarbon Cuts by Means of Multiple Injections to FCC Units
(American Chemical Society, 2002-11)
The upgrading of a visbreaker naphtha by recycling it into an FCC unit was studied following the approach of multiple injections (with the naphtha in the first one) using a laboratory riser simulator reactor and an ...
Single-step synthesis of 4-phenyl and 3,4-dihydro-4-phenyl coumarins using a recyclable Preyssler heteropolyacid catalyst under solvent-free reaction conditions
(Springer, 2015-04-17)
4-Phenyl and 3,4-dihydro-4-phenylcoumarins were prepared by direct esterification
of phenols with phenylpropiolic and cinnamic acids, respectively, using a
compound with Preyssler structure (H14P5NaW30O110) (PA) as ...
Produção de catalisador a partir das pilhas zinco-carbono exauridas e avaliação na degradação fotocatalítica do corante vermelho reativo 4B
(Universidade Tecnológica Federal do ParanáFrancisco BeltraoBrasilEngenharia QuímicaUTFPR, 2021-12-10)
In the present work, the recovery of zinc from depleted zinc-carbon cells for application in the degradation of the reactive red dye 4B was studied. The synthesized catalyst (C-Zn) was also submitted to FTIR, MEV and DRX ...
Catalyst Recovery and Recycling Facilitated by Magnetic Separation: Iridium and Other Metal Nanoparticles
(WILEY-V C H VERLAG GMBHWEINHEIM, 2012)
The immobilization of metal nanoparticles in magnetic responsive solids allows the easy, fast, and clean separation of catalysts; however, the efficiency of this separation process depends on a strong metalsupport interaction. ...
Recycling of waste plastics into fuels. LDPE conversion in FCC
(Elsevier Science, 2012-06)
In order to study the tertiary recycling of waste polymers in standard FCC units low density polyethylene (LDPE) was dissolved into a commercial vacuum gas oil at 2 and 6 wt.% and converted over two equilibrium FCC catalysts ...
Catalytic glycolysis of poly(ethylene terephthalate) using zinc and cobalt oxides recycled from spent batteries
(Springer Verlag Berlín, 2019-09-10)
The chemical recycling of polyethylene terephthalate (PET) to bis(2-hydroxyethyl) terephthalate (BHET) was studied using recycled metal oxides. Recovered zinc (RZnO) and cobalt (RCoO) oxides were obtained after a ...
Direct Access to Oxidation-Resistant Nickel Catalysts through an Organometallic Precursor
(American Chemical Society Washington, 2012)
Optimization of reaction parameters in the conversion of PET to produce BHET
(John Wiley & Sons Inc, 2017-10)
The conversion of poly(ethylene terephthalate) (PET) was analyzed in order to define the optimal conditions for the Bis(2-Hydroxyethyl) terephthalate (BHET) yield as regards catalyst use (zinc acetate), glycol (ethylene ...
Catalyst Recovery and Recycling Facilitated by Magnetic Separation: Iridium and Other Metal Nanoparticles
(Wiley-BlackwellWeinheim, 2012)