Dehydrogenation of propane using a packed‐bed catalytic membrane reactor

Weyten, Herman; Keizer, Klaas; Kinoo, Annemieke; Luyten, Jan; Leysen, R.

doi:10.1002/aic.690430717

Cited by 58 publications

(21 citation statements)

References 27 publications

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“…Silica derived membranes have proved to be stable for over 2000 h operating at 500°C [1] using dry gas mixtures, as well as for H 2 /CO 2 separation [2,3], dehydrogenation of propane [4][5][6] and cyclohexane [7,8], and H 2 separation from syngas generated in the water gas shift reaction [9,10] among several examples. Although pure silica has excellent thermal and chemical stability, they are hydrothermally unstable in the presence of steam [11,12], which is a major issue for the deployment of silica membranes for industrial applications involving wet gas separation.…”

Section: Introductionmentioning

confidence: 99%

Binary gas mixture and hydrothermal stability investigation of cobalt silica membranes

Liu

Wang

Martens

et al. 2015

Journal of Membrane Science

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a b s t r a c tThis work investigates the influence of hydrothermal exposure on the separation performance of sol-gel derived cobalt oxide silica membranes for both single gases (He, H 2 , CO 2 and N 2 ) and binary gas mixtures (He/CO 2 ). The surface area of the materials slightly decreased after exposed to 25 mol% water vapour at 550°C for 100 h. The membranes complied with activation transport mechanism before and after hydrothermal treatment (HT), and for both single gas and gas mixture permeation. Best values were achieved for He permeance of 3.3 Â 10 À 7 mol m À 2 s À 1 Pa À 1 at 500°C and permselectivity of 479 for He/CO 2 . After HT, the permeance of He and H 2 decreased by 28% and 22% at 500°C, respectively, while the permeance of CO 2 increased and resulting in a lower He/CO 2 permselectivity of 190. For gas mixtures, the He purity in the permeate side increased from 62% to 97% at 200°C when the He feed molar concentration increased from 10% to 50% before HT. The He permeance remained unchanged with respect to He feed concentrations and was unaffected by the presence of CO 2 , although a reduction of He permeance was observed after HT exposure. The He purity in the permeate side was similar before and after HT exposure as a function of the He concentration in the feed side. Hence, the membrane matrix underwent densification though the overall pore size distribution did not broaden after hydrothermal treatment.

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Section: Introductionmentioning

confidence: 99%

Binary gas mixture and hydrothermal stability investigation of cobalt silica membranes

Liu

Wang

Martens

et al. 2015

Journal of Membrane Science

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“…Во многих работах описано использование плотных мембран на основе палладия в реакциях дегидрирования. Из-за невысокой селективности мембраны часть пропана и пропилена может диффундировать в пермеат [40]. Перспективны также плотные мембраны на основе SiO 2 .…”

Section: получение водорода дегидрированием пропан-бутановой смесиunclassified

Haglund Syndrome with Pump Bump

Küçükşen¹,

Karahan²,

Erol³

2012

Med Arh

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Haglund's syndrome, which is an inflammation of the bursa and a bony enlargement on the back of the heel that most often leads to painful bursitis, is a rare cause of retrocalcaneal pain. The clinical diagnosis is often confusing as the clinical picture may mimic other causes of hindfoot pain such as isolated retrocalcaneal bursitis or hindfoot involvement from more systemic disorders such as seronegative spondyloarthropathies (Reiter's syndrome, ankylosing spondylitis) or rheumatoid arthritis. This report is of a 60-year-old woman with a painful swelling of the right heel, who was diagnosed with Haglund syndrome. The characteristic clinical photograph (showing the prominent 'pump bump'), radiographical and magnetic resonance imaging features are presented.

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“…Increased olefin yields were detected in the membrane reactor compared to the performance without hydrogen removal. Collins et al [139] studied propane dehydrogenation on a Pt-loaded zeolite catalyst, while Weyten et al [147] and Schäfer et al [148] each performed similar experiments on the same reaction using a Cr 2 O 3 /Al 2 O 3 catalyst. In addition, a significant fraction of the hydrocarbons was lost to the permeate due to the poor separation factor, unless very high flow rates were applied.…”

Section: Reformingmentioning

confidence: 99%

Catalytic Membrane Reactors

Dittmeyer

Caro

2008

Handbook of Heterogeneous Catalysis

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The sections in this article are Introduction Types of Membrane Reactor Catalytic Reactors with Hydrogen‐Selective Membranes Membrane Types Organic Polymers Solid Polymer Electrolytes Metals Microporous Membranes Ceramic Proton Conductors and Cermets Final Remarks Selective Removal of Hydrogen Dehydrogenation A Hydrocarbons B Alcohols Water Gas Shift Reaction Reforming A Packed‐Bed Membrane Reformers B Fluidized‐Bed Membrane Reformers C Microstructured Membrane Reformers D Techno‐Economic Evaluation Selective Supply of Hydrogen Hydrogenation Hydroxylation by In‐Situ H 2 O 2 Formation Perspectives Reactors with Oxygen‐Selective Membranes Membrane Types Mixed Oxygen‐Ion‐ and Electron‐Conducting Membranes Solid Electrolytes for Electrochemical Operation Membranes for Selective Removal of Oxygenates Pore Membranes for Non‐Selective Oxygen Feeding Selective Supply of Oxygen Production of Pure Oxygen and of Oxygen‐Enriched Air Partial Oxidation of Methane to Synthesis Gas Oxidative Dehydrogenation of Light Alkanes to Olefins Oxidative Coupling of Methane to C 2 ‐Hydrocarbons Solid Electrolyte Membrane Reactors Perspectives Catalytic Reactors with Non‐Selective Membranes Distributed Feeding through Membranes Catalytic Membrane Contactors Gas–Liquid Applications Liquid–Liquid Applications Gas–Gas Applications Perspectives Design of Catalytic Membrane Modules Novel Inorganic Membrane Supports High‐Temperature Membrane Reactor Design Concluding Remarks

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Dehydrogenation of propane using a packed‐bed catalytic membrane reactor

Cited by 58 publications

References 27 publications

Binary gas mixture and hydrothermal stability investigation of cobalt silica membranes

Binary gas mixture and hydrothermal stability investigation of cobalt silica membranes

Haglund Syndrome with Pump Bump

Catalytic Membrane Reactors

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