Synthesis at several length scales of zeolite A membranes using a continuous flow method

Arbeláez, Oscar; Bustamante, Felipe; Villa, Aída Luz

doi:10.1080/01496395.2015.1135947

Cited by 1 publication

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“…The highest conversion exhibited in the Al 2 O 3 0.2 mm catalytic membrane reactor is related to the surface Knudsen mechanism, as reported by Arbelaez et al [42]. As the permeation is inversely proportional to the molecular weight (i.e., the membranes synthesized in this work displayed higher helium than propane permeances at room temperature [37]), a higher permeation for water with lower molecular weight is expected, increasing the ethanol conversion.…”

Section: Catalyst Testing In the Membrane Reactorsupporting

confidence: 73%

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Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification

et al. 2019

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To overcome the low equilibrium conversion in the direct synthesis of diethyl carbonate from ethanol and CO 2 under moderate reaction conditions, the reaction was conducted in a membrane reactor packed with pelletized Cu-Ni:3-1 supported on activated carbon. A SiO 2 /g-Al 2 O 3 commercial membrane and zeolite A membranes synthesized on commercial Al 2 O 3 supports were evaluated in the membrane reactor. Although characterization of the membranes by X-ray diffraction confirmed the presence of a zeolite A layer on the supports, gas permeation and permselectivity tests of ethanol and water evidenced some defects of the synthesized membranes. An increase in conversion with respect to a conventional packed-bed reactor was observed in the membrane reactors prepared on Al 2 O 3 , but equilibrium conversion was not attained. However, with the commercial membrane, the ethanol conversion was higher than the equilibrium conversion.

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Section: Catalyst Testing In the Membrane Reactorsupporting

confidence: 73%

“…For this analysis, the 25 cm long synthesized membranes were cut in three 8 cm long sections, and in each section the inner surface was scraped for analysis. The gas permeation measurements and scanning electron microscopy performed to the membranes used in this study were reported previously [42].…”

Section: Membrane Preparationmentioning

confidence: 99%

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification

et al. 2019

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show abstract

Synthesis at several length scales of zeolite A membranes using a continuous flow method

Cited by 1 publication

References 38 publications

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification

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Synthesis at several length scales of zeolite A membranes using a continuous flow method

Cited by 1 publication

References 38 publications

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO2 by Process Intensification

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO2 by Process Intensification

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Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification

Enhanced Conversion in the Direct Synthesis of Diethyl Carbonate from Ethanol and CO₂ by Process Intensification