Effect of multilayered catalytic bed on temperature profiles and catalytic performance for Fischer?Tropsch synthesis over Co/Al2O3 catalyst in a multitubular fixed-bed reactor

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F23%3A43897723" target="_blank" >RIV/44555601:13440/23:43897723 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0263876223004756?dgcid=coauthor" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263876223004756?dgcid=coauthor</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cherd.2023.07.038" target="_blank" >10.1016/j.cherd.2023.07.038</a>

Result language

angličtina

Original language name

Effect of multilayered catalytic bed on temperature profiles and catalytic performance for Fischer?Tropsch synthesis over Co/Al2O3 catalyst in a multitubular fixed-bed reactor

Original language description

Fischer-Tropsch synthesis (FTS) is a widely recognized process that catalytically converts syngas into higher hydrocarbons and oxygenates, which are ultimately upgraded into transportation fuels and chemicals. Effective temperature control and heat dissipation are crucial considerations due to the exothermic nature of the FT reaction. Underutilization of the catalytic bed is another challenge in fixed-bed reactors. The implementation of a multilayered catalytic bed, with the catalytic activity in an ascending order, has shown positive effects in addressing these issues. It mitigates adiabatic temperature rise, reduces the maximum reactor temperature, and minimizes catalyst deactivation at high temperatures. Moreover, this multilayered bed effectively addresses the underutilization issue by ensuring optimal utilization of the entire bed as the catalytic activity transitions from one layer to another during the reaction. Layers with a higher cobalt loading remain active until the completion of the reaction, resulting in minimal fluctuations in CO conversion. To achieve uniform temperature profiles, catalytic activities, and product distributions in all reactor tubes in a multitubular reactor, it is imperative to maintain consistent reaction conditions, utilize the same catalyst loading in all tubes, employ an appropriate heating system, and implement an efficient cooling system to dissipate the heat generated by the exothermic reaction. Furthermore, investigations into the properties of the used catalysts after the reaction indicate that catalyst deactivation primarily occurs due to the deposition of FT products on the catalyst surface and pores and blockage of active cobalt sites, and sintering of cobalt particles.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Chemical Engineering Research and Design

ISSN

0263-8762

e-ISSN

1744-3563

Volume of the periodical

2023

Issue of the periodical within the volume

197

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

274-291

UT code for WoS article

001052736300001

EID of the result in the Scopus database

2-s2.0-85166742626