Abstrakt: Przeprowadzono badania zastosowania katalizatorów miedziowych do produkcji wodoru w procesie rozkładu metanolu. Badano katalizatory CuZnZr z dodatkami galu, chromu oraz chromu i ceru oraz kataliza-tor CuZnAl promowany cyrkonem. Najwyższą...

Abstrakt: Przeprowadzono badania aktywności katalizatorów: Ni, Co, Ce osadzonych na Al2O3 do produkcji wodoru, na drodze parowego reformingu etanolu w zakresie temperatur 413-823 K. Katalizatory wytworzono metodą cytrynianową. Najlepszym spośród...

Abstrakt: Wyznaczono współczynniki przepuszczalności składników biogazu (CH4 i CO2) dla dwóch membran, wykonanych odpowiednio z tlenku polifenylu (PPO 70) oraz bezwodnika diftalowego i diaminy AE 55). Badania prowadzono dla czystych...

Abstrakt: Przeprowadzono badania rozpuszczalności głównych składników biogazu w membranie polisulfonowej. Otrzymane metodą grawimetryczną izotermy adsorpcji opisano za pomocą modelu sorpcji dualnej. Stwierdzono bardzo dobrą zgodność modelu...

Biomethane is one of the controllable Renewable Energy Sources. It may be derived from biogas, a multicomponent gas mixture, using, among others, membrane processes. The proper optimization of such a process requires the knowledge of the phenomena accompanying...

Cu/Zr catalysts with about 4% by mass Ga or La addn. were prepared and tested in a continuous flow fixed-bed reactor, in the temp. range of 433–573 K, with an initial molar ratio of ethanol to water of 1:3. The properties of obtained catalysts...

The research problem was to determine the possibility of aqueous mineral carbonation using fly ash from lignite fluidized bed combustion. Both direct and indirect routes were used. The innovative nature of the research consisted of conducting experiments...

CH3 (CH2 ) 10COOH was esterified with CH3 (CH2 ) 5 OH, CH3 (CH2 ) 7 OH and CH3 (CH2 ) 9 OH at 393–413 K and at molar ratios (alc.:acid) of 3:1–10:1 in the presence of the Dowex catalyst 50WX8 (1.5% by mass). The kinetics of the studied processes...

A review, with 56 refs., of research progress on the prodn. of MeOH from MeH using oxide photocatalysts: W, Ti, Bi, Zn, Mo, Ni, Ce and Ga, as well as zeolites and graphene C nitrides. The process conditions were presented, in particular the light sources...

This paper presents the kinetics of methanol synthesis from carbon dioxide and hydrogen over a Cu/Zn/Zr/Ga catalyst. Kinetic studies were carried out in a continuous-flow fixed-bed reactor in a temperature range from 433 to 513 K, pressures from 3 to...

The levulinic acid was esterified with alcohol at an alcohol to acid molar ratio of 3:1, 5:1, and 10:1 in the presence of a 0.1 wt% methanesulfonic acid catalyst. During esterification, the temperature was changed linearly from 373 to 428 K and its average...

The application of copper-based catalysts in the production of pure hydrogen in the steam reforming of ethanol was performed. The tricomponent Cu/Zr catalysts with about 4 mass% addition of nickel, cobalt, or cerium have been prepared in our laboratory....