Investigation on the pore structure of binderless zeolite 13× shapes

Schumann, Kristin; Unger, Baldur; Brandt, Alfons; Scheffler, Franziska

doi:10.1016/j.micromeso.2011.07.015

Cited by 84 publications

(61 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This concept aims at the preparation of binder-free zeolite shapes which eventually still retain the mechanical strength primarily assured by the presence of the binder. In particular, Schumann et al [114][115][116] have recently reported the preparation of mechanically stable binder-free shaped zeolites (13X and LTA) by additional hydrothermal treatment of binder-containing zeolite beads under alkaline conditions, thereby transforming the binder components into zeolite material. Such hierarchical binder-free zeolite 13X beads exhibited higher adsorption capacities than the conventional binder-containing shaped zeolite 13X, as it was shown for CO 2 and H 2 O adsorption.…”

Section: Granular Zeolite Composites Via Compactionmentioning

confidence: 99%

Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity

et al. 2016

View full text Add to dashboard Cite

'Hierarchy' is a property which can be attributed to a manifold of different immaterial systems, such as ideas, items and organisations or material ones like biological systems within living organisms or artificial, man-made constructions. The property 'hierarchy' is mainly characterised by a certain ordering of individual elements relative to each other, often in combination with a certain degree of branching.Especially mass-flow related systems in the natural environment feature special hierarchically branched patterns. This review is a survey into the world of hierarchical systems with special focus on hierarchically porous zeolite materials. A classification of hierarchical porosity is proposed based on the flow distribution pattern within the respective pore systems. In addition, this review might serve as a toolbox providing several synthetic and post-synthetic strategies to prepare zeolitic or zeolite containing material with tailored hierarchical porosity. Very often, such strategies with their underlying principles were developed for improving the performance of the final materials in different technical applications like adsorptive or catalytic processes. In the present review, besides on the hierarchically porous allzeolite material, special focus is laid on the preparation of zeolitic composite materials with hierarchical porosity capable to face the demands of industrial application.

show abstract

Section: Granular Zeolite Composites Via Compactionmentioning

confidence: 99%

Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Synthesis and characterization of the material are described in detail elsewhere. 49 Very briefly, the zeolites are porous crystalline aluminosilicate materials extensively used in a wide range of industrial applications, and they are usually synthesized as a fine crystalline powder. It is impractical to use zeolites in powder form, since it causes a high pressure drop across a packed bed.…”

Section: Materials and Adsorbatesmentioning

confidence: 99%

Development of gas‐phase SMB technology for light olefin/paraffin separations

et al. 2016

View full text Add to dashboard Cite

The separation of ethylene from ethane is particularly complex due to their similar physical properties. Cryogenic distillation is the most common technology employed for this separation and is one of the most expensive operations in industry, being the driving force for the ongoing research to find a more cost-effective alternative. In the present work, a gas-phase simulated moving bed (SMB) bench unit was employed to produce polymer-grade ethylene from ethane/ethylene mixtures, using binderless 13X zeolite beads as adsorbent, and propane as desorbent. The achieved performance parameters demonstrated the high efficiency of the current technology, since ethylene was obtained with a purity of 99.8%, a recovery of 99.8%, and a productivity of 59.7 kg C2H4 Áh 21 Ám 23 adsorbent . Considering the encouraging results obtained it is fair to say that the gas-phase SMB is a competitive and strong candidate as alternative to the conventional process, especially when combined with enhanced performance adsorbents, such as binderless zeolites.

show abstract

“…In the presented work, a new binderless zeolite of type 13X (bead size 1.6 -2.5 mm, 13XBFK © , Chemiewerk Bad Köstritz, [13] has been used as storage material for the application under investigation. The zeolite is commercially available and characterized by a fast reaction kinetic and a high water uptake [13,14].…”

Section: Theoretical Base and Processes For Thermochemical Energy Stomentioning

confidence: 99%

Experimental and Numerical Investigations of Different Reactor Concepts for Thermochemical Energy Storage

2014

View full text Add to dashboard Cite

This paper presents two different reactor concepts, an external and integrated reactor, for thermochemical energy stores which are operating in an open process using ambient air for the heat and mass transport. In the external reactor concept the material charging and discharging is performed in a reactor separated from the material store whereas in the integrated reactor concept the charging and discharging take place directly in the material store itself. For both reactor concepts, the heat and mass transfer inside the reactor or the material store respectively, have been analyzed in detail by means of numerical simulations. Based on the theoretical investigations a reactor design and an operation strategy have been developed. At laboratory scale an external test reactor (approx. 20 l of storage volume) has been built and experimentally tested. The experiments have proven the concept of the developed reactor design. A high thermal performance during the charging and discharging process of the thermochemical energy store has been obtained.

show abstract

Investigation on the pore structure of binderless zeolite 13× shapes

Cited by 84 publications

References 3 publications

Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity

Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity

Development of gas‐phase SMB technology for light olefin/paraffin separations

Experimental and Numerical Investigations of Different Reactor Concepts for Thermochemical Energy Storage

Contact Info

Product

Resources

About