Diffusion and Reaction in Foam-Based Catalysts: Effectiveness Factor Expressions for LHHW, Nonisothermal and General Order Kinetics

Article Engineering, Chemical

Assessment of effectiveness factor in porous catalysts under non-symmetric external conditions of concentration

Giuseppe Prenesti et al.

Summary: In this paper, the effectiveness factor of porous catalytic particles is evaluated using computational fluid dynamic techniques in the absence of boundary conditions symmetry over the external surface. The study focuses on non-uniform concentration fields over the surface and proposes an empirical correlation for higher Thiele modulus values. The methodology presented in the paper shows good efficacy in reducing calculation time and memory.

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING (2023)

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Article Engineering, Chemical

Diffusion and reaction in foam-based catalysts: Identifying the shape factor

Minaz Makhania et al.

Summary: This article provides a definition of the shape factor for foam catalysts using heterogeneous modeling, and discusses its application in foam catalytic systems.

CHEMICAL ENGINEERING SCIENCE (2022)

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Article Engineering, Chemical

Foam: Imparting Structure to Heterogeneous Catalysis

Minaz Makhania et al.

Summary: This article critically reviews the applications of solid foam in heterogeneous catalysis and compares its performance with conventional catalysts. The preparation techniques of foam-based catalysts and methods for performance modeling are also discussed. The article identifies the gaps in current research and recommends expanding the use of foam-based catalysts to a wider class of reactions by applying innovative methods. Perspectives on expanding the modeling with solid foam-based catalysts are also presented.

CHEMBIOENG REVIEWS (2022)

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Article Engineering, Environmental