Hydrodynamics and mass transfer in three-phase composite minichannel fixed-bed reactors

Haase, Stefan; Weiß, Margarita; Langsch, Robert; Bauer, Tobias; Lange, Rüdiger

doi:10.1016/j.ces.2013.01.050

Cited by 52 publications

(45 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several authors have used this model reaction to estimate overall G-L-S mass transfer performance such as Haase et al [42] or Tourvieille et al [43]. A detailed literature review is proposed by Meille et al [44].…”

Section: Overall External Mass Transfer Estimationsmentioning

confidence: 97%

“…Obviously, the lowest energy inputs for the highest mass transfer rates are sought. In the following, a comparison with reactors where a fixed catalyst bed or structure is used is proposed on the basis of the map already established by Haase et al [42]. Several reactors have drawn our attention: conventional trickle beds (TBR), foam reactors at macro scale (FR), composite reactors (CR) also named string reactors, micro-packed bed reactors (l-PBR) and wall coated monolith reactors in Taylor flow regime (WCMR).…”

Section: Comparison With Other Technologiesmentioning

confidence: 99%

“…L-S mass transfer coefficients have been determined by the Lakota and Levec [52] correlation for the FR and the TBR. In the case of composite reactor (CR), the procedure to evaluate mass transfer coefficients according to Haase et al [42] is used.…”

Section: Comparison With Other Technologiesmentioning

confidence: 99%

See 2 more Smart Citations

Milli-channel with metal foams under an applied gas–liquid periodic flow: External mass transfer performance and pressure drop

Tourvieille

Philippe

Bellefon

2015

Chemical Engineering Journal

View full text Add to dashboard Cite

Section: Overall External Mass Transfer Estimationsmentioning

confidence: 97%

Section: Comparison With Other Technologiesmentioning

confidence: 99%

See 1 more Smart Citation

Milli-channel with metal foams under an applied gas–liquid periodic flow: External mass transfer performance and pressure drop

Tourvieille

Philippe

Bellefon

2015

Chemical Engineering Journal

View full text Add to dashboard Cite

“…Despite the obvious benefits of SPSR, these laboratory reactors are not commonly used for laboratory catalysts testing and only a few works describing their use were published, e.g. for the fast hydrogenation of allene [12], hydrogenation of cinnamaldehyde [14], hydrogenation of alphamethylstyrene [15] and hydrodesulfurized heavy gas oil fractions [10,11].…”

Section: Introductionmentioning

confidence: 99%

Advantage of the single pellet string reactor for testing real-size industrial pellets of potassium-doped CoMnAl catalyst for the decomposition of N2O

Klyushina

Pacultová

Obalová

2015

Reac Kinet Mech Cat

View full text Add to dashboard Cite

Two tubular laboratory reactors, the single pellet string reactor (i.d. = 0.55 cm) and the fixed bed reactor (i.d. = 5 cm) were compared on the basis of laboratory experiments of N 2 O catalytic decomposition and measurements of residence time distribution curves. K/Co 4 MnAlO x mixed oxide in the form of cylinders (5.1 mm 9 5.1 mm) was used as a catalyst. The influence of external diffusion, deviation from plug flow and influence of axial dispersion on N 2 O conversion obtained in both reactors were discussed. The influence of macroscopic phenomena on the rate of catalytic reaction was significantly lower in the single pellet string reactor, which predetermined it as a suitable laboratory reactor for testing of real-size industrial catalysts. Experimentally obtained results were confirmed by mathematical modeling.Keywords Single pellet string reactor Á Fixed bed reactor Á External diffusion Á Axial dispersion Á Peclet number Á RTD List of symbolsKnudsen diffusivity (m 2 s -1 ) D ij Binary diffusion coefficient of molecular diffusivity (m 2 s -1 )

show abstract

“…A review on gas-liquid-solid reactions was published by Hessel et al (2005). Recently, Haase et al (2013) studied hydrogenation of α-methylstyrene, in a packed bed reactor, with an emphasis on the fluid behavior and the mass transport characteristics. In their experiment, catalyst particles with a diameter of 0.8 mm were packed in a square microchannel, which was 1.0 mm in both depth and width.…”

Section: Extension To Three Phase Operationsmentioning

confidence: 99%

Fluid Behavior and Mass Transport Characteristics of Gas–Liquid and Liquid–Liquid Flows in Microchannels

Sotowa

2014

J. Chem. Eng. Japan

View full text Add to dashboard Cite

It has been widely recognized that microchannels can be used to enhance mass transfer rate between two immiscible uids. This feature has attracted interests of many researchers in the eld of chemical engineering. To exploit such feature of microchannels, the ow characteristics and mass transfer behavior must be fully understood. In addition, to construct an industrial scale process consisting of microchannels, an e cient numbering-up technique is required. In this review, an overview of the recent literature on the uid ow and mass transfer behavior in multiphase ow in microchannels will be given. An attention is also paid to the numbering-up technique and extension to multiphase system involving three uids.

show abstract

Hydrodynamics and mass transfer in three-phase composite minichannel fixed-bed reactors

Cited by 52 publications

References 26 publications

Milli-channel with metal foams under an applied gas–liquid periodic flow: External mass transfer performance and pressure drop

Milli-channel with metal foams under an applied gas–liquid periodic flow: External mass transfer performance and pressure drop

Advantage of the single pellet string reactor for testing real-size industrial pellets of potassium-doped CoMnAl catalyst for the decomposition of N2O

Fluid Behavior and Mass Transport Characteristics of Gas–Liquid and Liquid–Liquid Flows in Microchannels

Contact Info

Product

Resources

About