Isobutane dehydrogenation in a DD3R zeolite membrane reactor

Gücüyener, Canan; Bergh, Johan van den; Gascón, Jorge; Kapteijn, F.

doi:10.1016/j.cej.2010.11.021

Cited by 44 publications

(19 citation statements)

References 33 publications

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“…[13][14][15][16][17][18][19][20][21] Regarding adsorptive based separations, the selective adsorption of propylene over propane and trans-but-2-ene and buta-1,3-diene over other butane and but-2-ene isomers, together with the high uptakes of ethylene on the DD3R, was firstly reported by our group when studying single component adsorption using a Tapered Element Oscillating Microbalance (TEOM). 22,23 Later, the separation of propane/ propylene mixtures was studied in detail by breakthrough experiments, which demonstrated the shape selective adsorption behaviour of DD3R for propylene.…”

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Facile synthesis of the DD3R zeolite: performance in the adsorptive separation of buta-1,3-diene and but-2-ene isomers

et al. 2011

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Small pore size and hydrophobic nature of DD3R make this material a unique zeolite with high potential in industrial separation applications. However, the reproducible rapid synthesis of this zeolite is still a problem. In this work, a thorough assessment of different synthetic methods revealed that synthesis reproducibility relies on two main pillars: the use of properly cleaned autoclave liners and the synthesis composition. High quality DD3R crystals are obtained when KOH is used as a cleaning agent, eliminating memory effects, and when KF is used in the synthesis as a mineralizing agent. H NMR reveals that template molecules accommodated within the cages are sticking to these 8-ring windows through their amine group. High quality DD3R crystals are applied in the adsorptive separation of buta-1,3-diene and but-2-ene isomers, one of the most energy intensive separations in chemical industry. Mixture separation experiments revealed that the 8-ring apertures of the DD3R cages are only accessible to trans-but-2-ene and buta-1,3-diene, while excluding but-1-ene and cis-but-2-ene molecules, resulting in shape-selective separation in the presence of C4 mixtures.

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Facile synthesis of the DD3R zeolite: performance in the adsorptive separation of buta-1,3-diene and but-2-ene isomers

et al. 2011

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“…16 Van den Bergh et al also investigated isobutene dehydrogenation in a DDR zeolite membrane reactor with both modeling and experimental approaches. 17 The relationship between membrane permeation and kinetic reaction rates has been suggested by Harold et al, who reported an optimal range of membrane permeation rates for different membrane selectivities to achieve Additional Supporting Information may be found in the online version of this article.…”

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confidence: 92%

Material properties and operating configurations of membrane reactors for propane dehydrogenation

et al. 2014

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A modeling-based approach is presented to understand physically realistic and technologically interesting material properties and operating configurations of packed-bed membrane reactors (PBMRs) for propane dehydrogenation (PDH). PBMRs composed of microporous or mesoporous membranes combined with a PDH catalyst are considered. The influence of reaction and membrane transport parameters, as well as operating parameters such as sweep flow and catalyst placement, are investigated to determine desired "operating windows" for isothermal and nonisothermal operation. Higher Damk€ ohler (Da) and lower P eclet (Pe) numbers are generally helpful, but are much more beneficial with highly H 2 -selective membranes rather than higher-flux, lower-selectivity membranes. H 2 -selective membranes show a plateau region of conversion that can be overcome by a large sweep flow or countercurrent operation. The latter shows a complex trade-off between kinetics and permeation, and is effective only in a limited window. H 2 -selective PBMRs will greatly benefit from the fabrication of thin ($1 mm or less) membranes.

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“…Dehydrogenation of i-butane in a DD3R zeolite membrane reactor was investigated [ 191 ]. The DD3R membrane showed an excellent H 2 /i-butane permselectivity (>500) at 500 °C and a reasonable H 2 permeance (4. , the i-butene yield in the membrane reactor is 41 %, where the equilibrium yield is 28 %.…”

Section: Membrane Reactorsmentioning

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Zeolite Thin Films and Membranes: From Fundamental to Applications

Wang

Yan

2016

Green Chemistry and Sustainable Technology

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Zeolite fi lms and membranes have extensively been investigated since 1992. Many new preparation methods and concepts have been developed, such as microwave synthesis, intergrowth supporting substances, covalent linker synthesis, inner-side synthesis, fl uoride-mediated synthesis, variable-temperature synthesis, masking technique, counter-diffusion secondary growth, and pore-plugging synthesis. The remarkable progress made in the preparation has stimulated many application researches of zeolite fi lms and membranes, such as dehydration of various organic solvents, organics extraction from organic/water mixtures, separation of organic mixtures, gas separation, oil-water separation, desalination of seawater, membrane reactors, membrane microreactors, low-k materials, corrosion-resistant materials, sensors, fuel cells, and batteries. The recent progress in preparation and applications of zeolite membranes from 2000 has been summarized in this chapter.

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Isobutane dehydrogenation in a DD3R zeolite membrane reactor

Cited by 44 publications

References 33 publications

Facile synthesis of the DD3R zeolite: performance in the adsorptive separation of buta-1,3-diene and but-2-ene isomers

Facile synthesis of the DD3R zeolite: performance in the adsorptive separation of buta-1,3-diene and but-2-ene isomers

Material properties and operating configurations of membrane reactors for propane dehydrogenation

Zeolite Thin Films and Membranes: From Fundamental to Applications

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