Targeted synthesis of a copper catalyst with a nanostructured active component
- Authors: Vanchurin V.I.1, Pavlov Y.L.1, Petrov A.Y.1, Marachuk L.I.2, Karachenko O.I.2, Dul’nev A.V.3, Rudnik L.D.4
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Affiliations:
- Mendeleev University of Chemical Technology
- OAO Grodno Azot
- OOO NIAP KATALIZATOR
- OAO Plazmatekh
- Issue: Vol 8, No 3 (2016)
- Pages: 257-264
- Section: Domestic Catalysts
- URL: https://journal-vniispk.ru/2070-0504/article/view/202315
- DOI: https://doi.org/10.1134/S2070050416030132
- ID: 202315
Cite item
Abstract
The effect of the hydrodynamic regime in the stirring of a copper carbonate–ammonia suspension containing an alumina–silica support on the chemical and phase composition of an active component (AC) precursor for a catalyst of cyclohexanol dehydrogenation to cyclohexanone is studied. By means of X-ray diffraction, differential thermal analysis, and adsorption, the precursor is found to precipitate in a developed turbulent regime, predominantly in the form of nanostructured hydroxocarbonate structures strongly bonded to the support. Some catalytic and textural properties of CAS-C (copper–alumina–silica for caprolactam) samples are studied with AC contents of 20 to 30 wt % (on a copper oxide basis). The laboratory technology is scaled up to industrial conditions. CAS-C samples and commercial H3-11 catalyst (BASF) are subjected to catalytic tests (in a flow-type reactor with a fixed catalyst bed 40 cm3 in volume at a temperature of 250°C and atmospheric pressure). The CAS-C catalyst is shown to be similar to the H3-11 catalyst in terms of selectivity, and to considerably surpass it in activity and thermal stability.
About the authors
V. I. Vanchurin
Mendeleev University of Chemical Technology
Author for correspondence.
Email: vanchourin@mail.ru
Russian Federation, Moscow, 125047
Yu. L. Pavlov
Mendeleev University of Chemical Technology
Email: vanchourin@mail.ru
Russian Federation, Moscow, 125047
A. Yu. Petrov
Mendeleev University of Chemical Technology
Email: vanchourin@mail.ru
Russian Federation, Moscow, 125047
L. I. Marachuk
OAO Grodno Azot
Email: vanchourin@mail.ru
Belarus, Grodno, 230013
O. I. Karachenko
OAO Grodno Azot
Email: vanchourin@mail.ru
Belarus, Grodno, 230013
A. V. Dul’nev
OOO NIAP KATALIZATOR
Email: vanchourin@mail.ru
Russian Federation, Novomoskovsk, Tula oblast, 301660
L. D. Rudnik
OAO Plazmatekh
Email: vanchourin@mail.ru
Russian Federation, Novomoskovsk, Tula oblast, 301660
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