Packed‐Bed Membrane Reactors

Hamel, Christof; Tóta, Á.; Klose, F.; Tsotsas, Evangelos; Seidel‐Morgenstern, Andreas

doi:10.1002/9783527629725.ch5

Cited by 6 publications

(6 citation statements)

References 46 publications

(61 reference statements)

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“…The selectivity of the desired intermediate product, MA, could be increased in the CFR, Figure b; however, the difference is limited. The results of these simulations agree with the general trends found experimentally and theoretically for butane oxidation as well as ethane oxidation reactions in different membrane reactors.…”

Section: Resultssupporting

confidence: 86%

Maleic anhydride production in a cross‐flow reactor: A comparative study

Ali

Alhumaizi

2014

Can J Chem Eng

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The utilisation of cross‐flow reactor (CFR) in maleic anhydride (MA) production by direct oxidation of n‐butane is analysed. The CFR is described by a series of experimentally proven packed‐bed reactor (PBR) segments with specific oxygen dosing for each segment. The MA is up to 35 higher in a CFR compared to a comparative PBR. However, increasing the number of oxygen feeding points, from 4 to 10, resulted in only a slight increase in yield. Moreover, the increase in reactor cooling bath temperature was found to raise the temperature inside the conventional reactor considerably; meanwhile, temperature increase in the corresponding CFR is limited. The use of different oxygen feeding policies; namely equal, increasing and decreasing policies, caused only a minor effect on CFR performance. The advantage in MA yield through use of CFR is diminished as the residence time increases. Since CFR can be safely operated with higher butane inlet concentrations and higher reactor temperature, it represents an interesting alternative for use at industrial‐scale operation.

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Section: Resultssupporting

confidence: 86%

Maleic anhydride production in a cross‐flow reactor: A comparative study

Ali

Alhumaizi

2014

Can J Chem Eng

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“…The impregnated catalyst was washed, dried and calcinated. The vanadium content of the catalyst was 1.4 % and its specific area 158 m 2 g −1 (BET) , , . A chromium catalyst (configuration c) + d)) was also prepared via impregnation of γ ‐Al 2 O 3 support (1.8 mm, 200 m 2 g −1 ) with chromium nitrate nonahydrate in water and is characterized by a chromium content of 5.8 % and a specific area of 178 m 2 g −1 .…”

Section: Methodsmentioning

confidence: 99%

“…The whole pilot plant was automated by Simatic S7 (Siemens). The experimental procedures are described by Hamel et al , .…”

Section: Methodsmentioning

confidence: 99%

“…For that reason, initially an inert packed bed membrane reactor (PBMR) for a distributed dosing and lowering O 2 on VO x is considered (Fig. b) , , . Furthermore, the ODH has been performed in a packed bed catalytic membrane reactor (PBCMR). A catalytically active membrane (VO x ) was combined with a fixed bed realized in a dead‐end configuration (Fig.…”

Section: Aim and Analyzed Conceptsmentioning

confidence: 99%

“…For that reason, initially an inert packed bed membrane reactor (PBMR) for a distributed dosing and lowering O 2 on VO x is considered (Fig. b) , , .…”

Section: Aim and Analyzed Conceptsmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Membrane Reactors for Integrated Coupling of Oxidative and Thermal Dehydrogenation of Propane

Brune

Wolff

Seidel‐Morgenstern

et al. 2019

Chemie Ingenieur Technik

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This study presents strategies capable to intensify the thermal dehydrogenation of propane (TDH) using integrated reactor concepts. An inert packed bed membrane reactor for distributed dosing of oxygen to realize the oxidative dehydrogenation (ODH) was studied and compared to a reactor with catalytically active membrane. The latter concept allows to combine TDH and ODH in one apparatus to overcome the chemical equilibrium by in situ conversion of the by‐product H2 using O2 or in a reverse water‐gas shift reaction by CO2. If CO2 is used as active sweep gas the reactor offered better performance regarding yield and selectivity. Strategies for further thermal integration are discussed.

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Model‐based Analysis of Fixed‐bed and Membrane Reactors of Various Scale

Walter

Brune

Seidel‐Morgenstern

et al. 2021

Chemie Ingenieur Technik

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A packed‐bed membrane reactor in a distributor configuration is studied theoretically for the oxidative propane dehydrogenation and compared with a fixed‐bed reactor. Based on detailed 2D models considering two different heat and mass transport models the reactor scale‐up including various reactor‐to‐particle diameter ratios (D/dP) is analyzed with respect to reactor performance, heat transfer and hot spot formation. Higher selectivities at lower hot spot temperatures occur in the packed‐bed membrane reactor for the same reaction conditions.

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Packed‐Bed Membrane Reactors

Cited by 6 publications

References 46 publications

Maleic anhydride production in a cross‐flow reactor: A comparative study

Maleic anhydride production in a cross‐flow reactor: A comparative study

Analysis of Membrane Reactors for Integrated Coupling of Oxidative and Thermal Dehydrogenation of Propane

Model‐based Analysis of Fixed‐bed and Membrane Reactors of Various Scale

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