Search Results - "Emig, Gerhard"

Numerical simulations of single phase reacting flows in randomly packed fixed-bed reactors and experimental validation by Freund, Hannsjörg, Zeiser, Thomas, Huber, Florian, Klemm, Elias, Brenner, Gunther, Durst, Franz, Emig, Gerhard

“…Randomly packed fixed-bed reactors are widely used in the chemical process industries. Their design is usually based on pseudo-homogeneous model equations with…”
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Application of the chemical vapor infiltration and reaction (CVI-R) technique for the preparation of highly porous biomorphic SiC ceramics derived from paper by Streitwieser, Daniela Almeida, Popovska, Nadja, Gerhard, Helmut, Emig, Gerhard

“…Chemical vapor infiltration and reaction (CVI-R) is used to produce biomorphic high porous SiC ceramics based on biological structures such as paper. The paper…”
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Detailed Simulation of Transport Processes in Fixed-Beds by Freund, Hannsjörg, Bauer, Jürgen, Zeiser, Thomas, Emig, Gerhard

“…Understanding the details of the local transport processes in fixed-bed reactors is an essential prerequisite for the performance of reliable predictive…”
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Kinetics and mechanism of the reduction of nitric oxides by H2 under lean-burn conditions on a Pt–Mo–Co/α-Al2O3 catalyst by Frank, Brigitta, Emig, Gerhard, Renken, Albert

“…The kinetics and the mechanism of the selective reduction of nitric oxides (NOx) by hydrogen is studied on a trimetallic Pt–Mo–Co/α-Al2O3 catalyst under…”
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Selectivity enhancement during formaldehyde synthesis from methanol by in situ CH 3I addition by Qian, Min, Emig, Gerhard, Liauw, Marcel A.

“…The effect of CH 3I on the formaldehyde synthesis from methanol over a polycrystalline silver catalyst was investigated at temperatures up to 993 K. While the…”
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Liquid Phase Hydrogenation of Maleic Anhydride and Intermediates on Copper-Based and Noble Metal Catalysts by Herrmann, Uwe, Emig, Gerhard

“…The liquid phase hydrogenation of maleic anhydride and intermediates was investigated using copper-based and noble metal catalysts. The experiments were…”
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Chemical Recycling of Polymer Materials by Sasse, Frank, Emig, Gerhard

“…After the first life cycle of plastics various recycling processes are available for further utilization of these valuable materials. For an ecologically and…”
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Reaction kinetics of the liquid-phase hydrogenation of succinic anhydride on CuZnO-catalysts with varying copper-to-zinc ratios in a three-phase slurry reactor by Küksal, Alpertunga, Klemm, Elias, Emig, Gerhard

“…The liquid-phase hydrogenation of maleic anhydride is a promising alternative to already established processes (e.g. Reppe process) for the production of…”
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Catalytic Wall Reactor as a Tool for Isothermal Investigations in the Heterogeneously Catalyzed Oxidation of Propene to Acrolein by Redlingshöfer, Hubert, Kröcher, Oliver, Böck, Wolfgang, Huthmacher, Klaus, Emig, Gerhard

“…The vapor phase oxidation of propene to acrolein is a highly exothermic reaction. To ensure isothermal reaction conditions, a catalytic wall reactor was used…”
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Liquid Phase Hydrogenation of Maleic Anhydride to 1,4-Butanediol in a Packed Bubble Column Reactor by Herrmann, Uwe, Emig, Gerhard

“…The liquid phase hydrogenation of maleic anhydride was investigated in a packed bubble column reactor using different copper-based catalysts. A copper-zinc…”
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A comparative study of the sorption of benzene and phenol in silicalite, HAlZSM-5 and NaAlZSM-5 by computer simulation by Klemm, Elias, Wang, Jianguo, Emig, Gerhard

“…The sorption of benzene and phenol in silicalite, HAlZSM-5 and NaAlZSM-5 has been studied comparatively with the Cerius 2 software from MSI using Monte Carlo…”
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Anhydrous formaldehyde by sodium catalysis by Ruf, Steffen, May, Alexander, Emig, Gerhard

“…Sodium containing catalysts are convenient catalysts for the pure dehydrogenation of methanol to anhydrous formaldehyde. Elemental sodium catalyses the…”
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Kinetic Modeling of the Heterogeneously Catalyzed Oxidation of Propene to Acrolein in a Catalytic Wall Reactor by Redlingshöfer, Hubert, Fischer, Achim, Weckbecker, Christoph, Huthmacher, Klaus, Emig, Gerhard

“…Using data from isothermal investigations in a catalytic wall reactor (Redlingshöfer, H.; Kröcher, O.; Böck, W.; Huthmacher, K.; Emig, G. Ind. Eng. Chem. Res…”
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Selectivity enhancement during formaldehyde synthesis from methanol by in situ CH3I addition by MIN QIAN, EMIG, Gerhard, LIAUW, Marcel A

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Shape selective methylation of biphenyl within zeolites: An example of transition state selectivity by Brechtelsbauer, Clemens, Emig, Gerhard

“…Shape selective alkylation of binuclear aromatic compounds was studied using the methylation of biphenyl as a test reaction. The slurry phase reaction was…”
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Computer simulation of the performance of a downer-regenerator CFD for the partial oxidation of n-butane to maleic anhydride by EMIG, Gerhard, MAY, Alexander, SCHEIDEL, Peter

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Homogeneous catalysis by evaporated solids by Ruf, Steffen, Emig, Gerhard

“…About 10 years ago, sodium aluminate has been found as suitable catalyst for the pure dehydrogenation of methanol to anhydrous formaldehyde. At first, the…”
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Kinetics and Mechanism in the Liquid-Phase Hydrogenation of Maleic Anhydride and Intermediates by Herrmann, Uwe, Emig, Gerhard

“…The influence of zinc oxide on the kinetics and mechanism of the liquid‐phase hydrogenation of maleic anhydride (MA) and intermediates was investigated on…”
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A method for the determination of diffusion coefficients in product-shape-selective catalysis on zeolites under reaction conditions by Klemm, Elias, Emig, Gerhard

“…Step-up (adsorption) and step-down (desorption) transient experiments were both simulated and performed in a recycle reactor in order to determine…”
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Examination of External Mass Transport in a Microchannel Reactor by Pressure Variation by Kölbl, A., Pfeifer, P., Fichtner, M., Kraut, M., Schubert, K., Liauw, M.A., Emig, G.

“…A variation of total pressure may be used to check for external mass transfer limitation in heterogeneous catalytic experiments. This is particularly…”
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