Selective hydrogenation of furfural using a membrane reactor

2021 ◽  
Author(s):  
Roxanna S Delima ◽  
Mia Stankovic ◽  
Ben P. MacLeod ◽  
Arthur G. Fink ◽  
Michael B. Rooney ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Membrane Reactor ◽  
Membrane Reactors ◽  
Hydrogen Formation ◽  
Palladium Membrane ◽  
Hydrogenation Reactions

Electrocatalytic palladium membrane reactors (ePMRs) use electricity and water to drive hydrogenation reactions without ever forming H2 gas. In these reactors, a palladium membrane physically separates electrochemical hydrogen formation in...

scholarly journals Initial testing of an inside-out type palladium membrane reactor for recovery of hydrogen from hydrocarbons or water

2021 ◽  
Vol 168 ◽  
pp. 112641
Author(s):  
R.F. Knights ◽  
J. Benayas ◽  
K. Sabin ◽  
S. Ng ◽  
A. Wohlers ◽  
...  
Keyword(s):  
Membrane Reactor ◽  
Initial Testing ◽  
Palladium Membrane ◽  
Inside Out

Ceria-Based Catalysts for Selective Hydrogenation Reactions: A Critical Review

2021 ◽  
Author(s):  
Kourosh Razmgar ◽  
Mohammednoor Altarawneh ◽  
Ibukun Oluwoye ◽  
Gamini Senanayake
Keyword(s):  
Selective Hydrogenation ◽  
Critical Review ◽  
Hydrogenation Reactions

Zeolite membrane reactors: from preparation to application in heterogeneous catalytic reactions

2021 ◽  
Author(s):  
I. G. Wenten ◽  
K. Khoiruddin ◽  
R. R. Mukti ◽  
W. Rahmah ◽  
Z. Wang ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Membrane Reactor ◽  
Membrane Separation ◽  
Process Intensification ◽  
Catalytic Reactions ◽  
Membrane Reactors ◽  
Zeolite Membrane ◽  
Heterogeneous Catalytic

Coupling chemical reaction with membrane separation or known as membrane reactor (MR) has been demonstrated by numerous studies and showed that this strategy has successfully addressed the goal of process intensification.

scholarly journals Understanding the Impact of Hydrogen Activation by SrCe0.8Zr0.2O3−δ Perovskite Membrane Material on Direct Non-Oxidative Methane Conversion

2022 ◽  
Vol 9 ◽  
Author(s):  
Sichao Cheng ◽  
Su Cheun Oh ◽  
Mann Sakbodin ◽  
Limei Qiu ◽  
Yuxia Diao ◽  
...  
Keyword(s):  
Methane Conversion ◽  
Membrane Reactor ◽  
Membrane Reactors ◽  
Fixed Bed Reactor ◽  
Perovskite Oxide ◽  
Oxide Material ◽  
Hydrogen Activation ◽  
Permeable Membrane ◽  
The Impact

Direct non-oxidative methane conversion (DNMC) converts methane (CH4) in one step to olefin and aromatic hydrocarbons and hydrogen (H2) co-product. Membrane reactors comprising methane activation catalysts and H2-permeable membranes can enhance methane conversion by in situ H2 removal via Le Chatelier's principle. Rigorous description of H2 kinetic effects on both membrane and catalyst materials in the membrane reactor, however, has been rarely studied. In this work, we report the impact of hydrogen activation by hydrogen-permeable SrCe0.8Zr0.2O3−δ (SCZO) perovskite oxide material on DNMC over an iron/silica catalyst. The SCZO oxide has mixed ionic and electronic conductivity and is capable of H2 activation into protons and electrons for H2 permeation. In the fixed-bed reactor packed with a mixture of SCZO oxide and iron/silica catalyst, stable and high methane conversion and low coke selectivity in DNMC was achieved by co-feeding of H2 in methane stream. The characterizations show that SCZO activates H2 to favor “soft coke” formation on the catalyst. The SCZO could absorb H2in situ to lower its local concentration to mitigate the reverse reaction of DNMC in the tested conditions. The co-existence of H2 co-feed, SCZO oxide, and DNMC catalyst in the present study mimics the conditions of DNMC in the H2-permeable SCZO membrane reactor. The findings in this work offer the mechanistic understanding of and guidance for the design of H2-permeable membrane reactors for DNMC and other alkane dehydrogenation reactions.

scholarly journals Review on antibiotics treatment by electrochemical membrane reactor

2021 ◽  
Vol 233 ◽  
pp. 01042
Author(s):  
Lei Chao ◽  
Feilong Chen ◽  
Yi Han ◽  
Yafeng Li
Keyword(s):  
Membrane Reactor ◽  
Membrane Filtration ◽  
Electrode Materials ◽  
Degradation Mechanism ◽  
Membrane Reactors ◽  
Membrane Electrode ◽  
Actual Application ◽  
Electrochemical Membrane Reactor ◽  
Antibiotic Degradation ◽  
The Impact

Lower consumption, higher efficiency, environmental protection, and reliability are the development trends for the treatment of antibiotic wastewater in future. To accomplish this, the electrochemical membrane reactor (ECMR) is developed by combining membrane filtration and electrochemical advanced oxidation technology. The device configuration and working mode of the electrochemical membrane reactor are introduced and compared. Besides, the principles of the removal of antibiotics by the reactor are explained with emphasis. Furthermore, the commonly used cathode and anode materials of the reactor in the current research are summarized, and the electrode materials are discussed. The effects of selection and modification on the elimination of antibiotics in the reactor and the impact are analysed. To address the limitations of electrochemical membrane reactors, this review proposes that more research should be done in the aspects of antibiotic degradation mechanism, reduction of membrane electrode R&D costs, and actual application of amplification devices.

Reaction rate profiles in long palladium membrane reactors for methane steam reforming

Desalination ◽  
2008 ◽  
Vol 233 (1-3) ◽  
pp. 359-366 ◽  
Author(s):  
Shigeki Hara ◽  
Kenji Haraya ◽  
Giuseppe Barbieri ◽  
Enrico Drioli
Keyword(s):  
Steam Reforming ◽  
Reaction Rate ◽  
Membrane Reactors ◽  
Methane Steam Reforming ◽  
Palladium Membrane ◽  
Methane Steam
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