New Trends in Catalysis for Sustainable CO2 Conversion, 2nd Edition

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1616

Special Issue Editors


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Guest Editor
Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain
Interests: CO2 valorization; alternative fuels; syngas; catalysts and catalytic reactions; kinetic modeling; synthesis of methanol, dimethyl ether (DME), and hydrocarbons
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain
Interests: CO2 valorization; alternative fuels; syngas; catalysts and catalytic reactions; kinetic modeling; synthesis of methanol, dimethyl ether (DME), and hydrocarbons
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This is the second edition of the Special Issue entitled, “New Trends in Catalysis for Sustainable CO2 Conversion”. Over the past few decades, there have been many advances in the world, leading to an improvement in life quality. Due to demographic and industrial growth, consumption has increased, as well as the amount of wastes and contaminants. Today, global warming and climate change are mainly attributed to the emission of anthropogenic greenhouse gases, with carbon dioxide (CO2) being the most relevant one, due to the huge amount of emissions of this gas to the atmosphere (mainly derived from the consumption of fossil fuels).

Carbon capture and storage (CCS) is a physical process which consists of separating the CO2 (emitted by industry and by the combustion processes for energy generation) and transporting it to a geological storage to isolate it from the atmosphere over the long term. However, the most promising routes for CO2 mitigation are those that use catalysts and chemical processes for valorization. By applying specific catalysts and suitable operating conditions, CO2 molecules react with other components to form longer chains (i.e., hydrocarbons). Accordingly, efforts should be made to catalytically valorize CO2 (alone or being co-fed with syngas), as an alternative way for reducing greenhouse gas emissions and obtaining high-value fuels and chemicals.

Carbon capture and utilization (CCU) is a developing field with a significant demand for research regarding the following aspects:

  • Development of new catalysts, catalytic routes, and technologies for CO2 valorization;
  • Study of new processes for obtaining fuels and chemicals from CO2;
  • Optimization of the catalyst and the reaction conditions for the process;
  • Further steps in advanced processes for improving the amount of CO2 fed into the reactor (either alone or co-fed with syngas) and the yield of products.

Prof. Dr. Javier Ereña
Dr. Ainara Ateka
Guest Editors

Manuscript Submission Information

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Keywords

  • catalytic processes for CO2 transformation
  • CO2 valorization
  • carbon capture and storage (CCS)
  • carbon capture and utilization (CCU)
  • climate change mitigation
  • synthesis of fuels and chemicals
  • syngas

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Published Papers (1 paper)

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Research

17 pages, 1241 KiB  
Article
Setting up In2O3-ZrO2/SAPO-34 Catalyst for Improving Olefin Production via Hydrogenation of CO2/CO Mixtures
by Ander Portillo, Onintze Parra, Andrés T. Aguayo, Javier Ereña, Javier Bilbao and Ainara Ateka
Catalysts 2023, 13(7), 1101; https://doi.org/10.3390/catal13071101 - 14 Jul 2023
Cited by 1 | Viewed by 1222
Abstract
The adequate configuration and the effect of the reduction was studied for the In2O3-ZrO2/SAPO-34 catalyst with the aim of improving its performance (activity and selectivity in the pseudo-steady state) for the hydrogenation of CO, CO2 and [...] Read more.
The adequate configuration and the effect of the reduction was studied for the In2O3-ZrO2/SAPO-34 catalyst with the aim of improving its performance (activity and selectivity in the pseudo-steady state) for the hydrogenation of CO, CO2 and CO2/CO (COx) mixtures into olefins. The experiments were carried out in a packed bed reactor at 400 °C; 30 bar; a H2/COx ratio of 3; CO2/COx ratios of 0, 0.5 and 1; a space time (referred to as In2O3-ZrO2 catalyst mass) of 3.35 gInZr h molC−1; and a time on stream up to 24 h. The mixture of individual catalyst particles, with an SAPO-34 to In2O3-ZrO2 mass ratio of 1/2, led to a better performance than hybrid catalysts prepared via pelletizing and better than the arrangement of individual catalysts in a dual bed. The deactivation of the catalyst using coke deposition and the remnant activity in the pseudo-steady state of the catalyst were dependent on the CO2 content in the feed since the synergy of the capabilities of the SAPO-34 catalyst to form coke and of the In2O3-ZrO2 catalyst to hydrogenate its precursors were affected. The partial reduction of the In2O3-ZrO2/SAPO-34 catalyst (corresponding to a superficial In0/In2O3 ratio of 0.04) improved its performance over the untreated and fully reduced catalyst in the hydrogenation of CO to olefins, but barely affected CO2/CO mixtures’ hydrogenation. Full article
(This article belongs to the Special Issue New Trends in Catalysis for Sustainable CO2 Conversion, 2nd Edition)
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