A microfiber catalyst with lemniscate structural elements


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

A new type of catalyst based on microfiber supports with microfibers twined into looped threads (lemniscate) that in turn form a structured flexible stable and geometrically regular bulk bed permeable to a reaction flow and not requiring any additional structurial elements is described. Deep toluene oxidation experiments show that the proposed platinum lemniscate glass-fiber catalyst (LGFC) considerably surpasses (by 8–10 times and more) familiar geometric types of catalysts, microfiber and otherwise, in both the specific observed activity per unit active component mass and the ratio between the observed activity and the specific hydraulic resistance. The reason for its superiority is a uniquely high efficiency of mass transfer in the external diffusion region of reactions. Among the promising fields of application for the proposed systems are fast gasphase catalytic reactions, liquid-phase catalytic reactions, and complicated reaction processes, in which the selectivity and the yield of target products are sensitive to diffusion inhibition.

About the authors

S. A. Lopatin

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis

Author for correspondence.
Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090

P. E. Mikenin

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis

Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090

D. A. Pisarev

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis

Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090

S. V. Zazhigalov

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis

Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090

D. V. Baranov

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis; Novosibirsk State Technical University

Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090; Novosibirsk, 630073

A. N. Zagoruiko

Boreskov Institute of Catalysis, Siberian Branch; Research and Educational Center for Energy Efficient Catalysis; Novosibirsk State Technical University; Tomsk Polytechnical University

Email: lsa@catalysis.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090; Novosibirsk, 630073; Tomsk, 634050

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2017 Pleiades Publishing, Ltd.