Thermal Conductivity of Composite Catalysts Containing Metallic Copper as a Reinforcing Component Full article
| Journal |
Theoretical Foundations of Chemical Engineering
ISSN: 0040-5795 , E-ISSN: 1608-3431 |
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| Output data | Year: 2007, Volume: 41, Number: 2, Pages: 184-192 Pages count : 9 DOI: 10.1134/S0040579507020121 | ||||
| Tags | Copper Content; Effective Thermal Conductivity; Copper Powder; Metallic Copper; Copper Particle | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Президиум РАН | 7.3 |
Abstract:
The dependences of the electrical and thermal conductivities of porous composite materials containing a metallic component (copper) on the volume copper content are investigated experimentally. The measured thermal conductivities of samples prepared according to the proposed technique indicate that the thermal conductivity of monolithic catalysts with a copper content of no less than 15 vol % exceeds 1 W m−1 K−1. This corresponds to the formation of a connected cluster consisting of conducting spheres in a random packing of conducting and insulating spheres. A comparative analysis of the thermal and electrical conductivities of the composites demonstrates that, at a copper content of higher than 20 vol %, the thermal conduction through a percolation cluster formed by copper particles makes the dominant contribution. In employing composite materials containing a catalytically active component in exothermic catalytic processes (Fischer-Tropsch synthesis, steam conversion of carbon monoxide CO, etc.), their high thermal conductivity is an important advantage that makes it possible to decrease the temperature gradient across the porous composite catalyst bed. A semiempirical method for calculating the thermal conductivity of composites is developed. The results of the calculations performed using the proposed method are in good agreement with experimental data.
Cite:
Dimov S.V.
, Sipatrov A.G.
, Rudina N.A.
, Kuznetsov V.V.
, Khassin A.A.
Thermal Conductivity of Composite Catalysts Containing Metallic Copper as a Reinforcing Component
Theoretical Foundations of Chemical Engineering. 2007. V.41. N2. P.184-192. DOI: 10.1134/S0040579507020121 WOS Scopus РИНЦ ANCAN OpenAlex
Thermal Conductivity of Composite Catalysts Containing Metallic Copper as a Reinforcing Component
Theoretical Foundations of Chemical Engineering. 2007. V.41. N2. P.184-192. DOI: 10.1134/S0040579507020121 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Димов С.В.
, Сипатров А.Г.
, Рудина Н.А.
, Кузнецов В.В.
, Хасин А.А.
Теплопроводность композитных катализаторов, содержащих металлическую медь в качестве армирующего компонента
Теоретические основы химической технологии. 2007. Т.41. №2. С.197-204. РИНЦ
Теплопроводность композитных катализаторов, содержащих металлическую медь в качестве армирующего компонента
Теоретические основы химической технологии. 2007. Т.41. №2. С.197-204. РИНЦ
Dates:
| Submitted: | Jun 27, 2006 |
| Published print: | Apr 1, 2007 |
Identifiers:
| Web of science: | WOS:000246393100012 |
| Scopus: | 2-s2.0-34248365635 |
| Elibrary: | 13554501 |
| Chemical Abstracts: | 2007:510987 |
| Chemical Abstracts (print): | 148:475136 |
| OpenAlex: | W2055096822 |