Diego Luna - Academia.edu (original) (raw)

Diego Luna

Uploads

Papers by Diego Luna

Reaction Kinetics and Catalysis Letters, Sep 1, 1985

The liquid-phase hydrogenation of Ph-CH =CH-I% substrates (E isomer) has been studied using rhodi... more The liquid-phase hydrogenation of Ph-CH =CH-I% substrates (E isomer) has been studied using rhodium supported at 1 wt% on two A1PO~ at~d an AlI)Ot-SiO2 catalyst. The reaction is zero order with respect to the substrate and first order with respect to hydrogen. The reaction rate has been found to be dependent on the support used, although the selectivity of the CC double bond hydrogenation is 100%, except for E-3-phenyl-2-propen-l-ol and Eeinnamaldehyde which produce parallel isomeriza~ion-hydregenolysis and undergo strong adsorption on the catalyst surface (autopoisoning), respectively. There is not a clear relationship between the electric or sterie effects and the reaction rate. M/HZtKo~a3ua~ rH;IporeHH3am4~ Cy@TpaToB Ph-CH=CH-R (E Ha0Mep) 6Nna nccJie~ioBaua Ha p0;IueBbIX ~aTa3H3aTopax (1 eec. %), naHeceHHNx Ha ALP04 n Ha AIPO~-SiQ. Pe~Kn~ n~eeT HyJ]eso~ nop~noK no 0TH0meHglO K cy6cTpaTy !J nep~b~fi nop~o~ no 0THOLUeHUm U B0~0po~y. CK0pOCTB pea~m~H 3aBIdCI4T 0T ucnonb3yeMoro H0C~4TeJIg, X0Tfl ce.rleKTUBH0CTb rHJlporeHH3a~gH ~BOHHOH CBYIaH CC paBHa 100 %, 3a ucN.amueHueM E-3@eHun-2-nponeu-l-ona u E-~0pHqH0r0 anbAerH~a, l<OTOpble 2[amT napaJ~J~e~bub~e H30Mepuaa~um-rHJlp0-FeHOJII/I3 H noxBepramTcg CHJIbHOH aAc0pSI1HH Ha n08epxH0CTg ~(aTa~g3aTopa (aBTOOTpaB~eHHe), C00TBeTCTBeHH0. He 5bVIo ga~jIeH00/IHO3HaqH0~ 3aB!4CH-MOCTH NemRy 3-~eKTp0HHbIMH H cTepHqecr:HMH 3qb~eKTaMH H cKop0CTbIO pea~m4H.

Energies, Jul 18, 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Biotechnological production of biofuels

Elsevier eBooks, 2023

Catalysts, Dec 1, 2022

ChemInform Abstract: AlPO4-Catalyzed Asymmetric Diels-Alder Reactions of Cyclopentadiene with Chiral Acrylates

ChemInform, Aug 19, 2010

This study describes the results obtained in the synthesis of a biofuel that avoids the glycerol ... more This study describes the results obtained in the synthesis of a biofuel that avoids the glycerol production by applying supported KF as alkaline heterogeneous catalyst, to generate two moles of fatty acid methyl esters and one mole of monoglyceride, from one mol of triglyceride. In this respect, the selective transesterification process of sunflower oil with methanol was carried out with KF10 wt % supported on three different solids, Al 2 O 3 , ZnO and MgO. The standard experimental conditions employed in the heterogeneous selective methanolysis reaction were: 12 mL of sunflower oil, 2.7 mL of methanol, 0.8 g of catalyst, at 65 °C temperature and one hour of reaction time. In all cases were obtained 100% conversion, with high selectivity values, greater than 90%, and quite suitable viscosity values, 4.5-8.5 cSt. In this way, the best catalytic behavior in the first use was obtained by using Al 2 O 3 as support. However, although in the five consecutive reuses all exhibited a continuous decrease in the catalytic activities; the lower one was for KF catalyst using MgO as support. In summary, these three KF supported catalysts have OPEN ACCESS Energies 2013, 6 2 resulted to be very suitable to obtain a new biofuel, similar to conventional biodiesel, applicable to diesel engines.

ChemInform Abstract: KNOEVENAGEL CONDENSATION IN THE HETEROGENEOUS PHASE USING ALUMINUM PHOSPHATE-ALUMINUM OXIDE AS A NEW CATALYST

Chemischer Informationsdienst, Jul 9, 1985

Covalent inmobilized lipase applied for the biodiesel production from sunflower oil

Immobilized Lipasi for Biodiesel Fuel Production from Olive Oil

Lipase entrapment on a demineralizated Sepiolite as support applied to the Biodiesel production

ChemInform Abstract: Anion Treatment (F- or SO42-) of AlPO4-Al2O3 (25 wt.-% Al2O3) Catalysts. Part 4. Catalytic Performance in the Alkylation of Phenol with Methanol

ChemInform, Aug 20, 2010

ABSTRACT

ChemInform Abstract: Kinetics and Mechanism of Catalytic Oxydehydrogenation of Alkylbenzenes

ChemInform, Aug 1, 1989

ChemInform, Sep 19, 1989

ChemInform Abstract (hydrogenation of styrene derivatives such as (I) at Ni-catalysts supported o... more ChemInform Abstract (hydrogenation of styrene derivatives such as (I) at Ni-catalysts supported on Al2O3, SiO2, and AlPO4 precipitated with aqueous ammonia or propylene oxide; activating effect of electron-releasing substituents at the olefinic double bond; evaluation of isokinetic temp. (273-365 K) for the catalysts from the isokinetic relationship; cis-concerted mechanism).