Yeast cells as macropore bio-templates enhancing transport properties and conversions in coated catalyst layers for exhaust gas oxidation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43897887" target="_blank" >RIV/60461373:22340/14:43897887 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23640/14:43923891

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ces.2014.04.037" target="_blank" >http://dx.doi.org/10.1016/j.ces.2014.04.037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ces.2014.04.037" target="_blank" >10.1016/j.ces.2014.04.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Yeast cells as macropore bio-templates enhancing transport properties and conversions in coated catalyst layers for exhaust gas oxidation

Popis výsledku v původním jazyce

We propose an application of yeast cells as alternative, ecological and economical material for macropore templates that enhance transport properties and conversions in multiple coated catalyst layers. The grown baker?s yeast cells exhibit a suitable, naturally uniform size, are cheap and readily removable from the layer upon calcination. Their application is demonstrated in Pt/gama-Al2O3 layers typically used in exhaust gas oxidation catalysts. The layers coated with and without yeast cells are compared by the means of porosimetry, cross-section SEM images and lab reactor tests for CO oxidation. Porous layer formation is simulated in 3D and multi-scale model is used to predict effective diffusivity and conversions of CO in the coatings. The model predictions agree well with lab reactor tests and clearly demonstrate improved transport properties and conversions in multiple layers configuration with additional macropores resulting from the yeast cell templates.

Název v anglickém jazyce

Yeast cells as macropore bio-templates enhancing transport properties and conversions in coated catalyst layers for exhaust gas oxidation

Popis výsledku anglicky

We propose an application of yeast cells as alternative, ecological and economical material for macropore templates that enhance transport properties and conversions in multiple coated catalyst layers. The grown baker?s yeast cells exhibit a suitable, naturally uniform size, are cheap and readily removable from the layer upon calcination. Their application is demonstrated in Pt/gama-Al2O3 layers typically used in exhaust gas oxidation catalysts. The layers coated with and without yeast cells are compared by the means of porosimetry, cross-section SEM images and lab reactor tests for CO oxidation. Porous layer formation is simulated in 3D and multi-scale model is used to predict effective diffusivity and conversions of CO in the coatings. The model predictions agree well with lab reactor tests and clearly demonstrate improved transport properties and conversions in multiple layers configuration with additional macropores resulting from the yeast cell templates.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

—

Svazek periodika

116

Číslo periodika v rámci svazku

NEUVEDEN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

342-349

Kód UT WoS článku

000340330500032

EID výsledku v databázi Scopus

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