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Catalysis in Energy Conversion: Hydrogen Production from Water, CO2 and Biomass Conversion

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 3276

Special Issue Editors


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Guest Editor
1. Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
2. Department of Chemistry, University College London, London WC1E 6BT, UK
Interests: hydrogen production; metal oxides; surface reactions; surface spectroscopy; photocatalysis; heterogeneous catalysis
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Guest Editor
Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2E1, Canada
Interests: renewable energy; hydrogen techno-economic analysis; sustainability; electrochemistry

Special Issue Information

Dear Colleagues,

The purpose of this Special Issue is to collect work related to energy conversion using photo- and electro-catalytic systems. Studies related to water splitting, CO2 conversion, and biomass conversion will be central to the issue. At the experimental level, special emphasis will be placed on studies that model catalytic systems using thorough in situ/operando characterization. Among the points to be addressed are material stability, ease of reproduction, and the kinetics of catalytic reactions as studied by electron, photoelectron, and vibrational spectroscopy tools. The Special Issue also welcomes studies carrying out system-level analysis on the techno–economic–environmental impact of developing such technologies. 

Prof. Dr. Hicham Idriss
Dr. Mohd Adnan Khan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrogen production from water
  • CO2 conversion
  • synthetic fuels
  • in situ/operando characterization
  • kinetics of catalytic reactions
  • techno-economy

Published Papers (1 paper)

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Research

14 pages, 1613 KiB  
Article
Revamping Fluid Catalytic Cracking Unit, and Optimizing Catalyst to Process Heavier Feeds
by Dicho Stratiev, Mihail Ivanov, Ivan Chavdarov, Georgi Argirov and Giulia Strovegli
Appl. Sci. 2023, 13(3), 2017; https://doi.org/10.3390/app13032017 - 3 Feb 2023
Cited by 6 | Viewed by 2849
Abstract
H-Oil gas oils have a higher density and higher nitrogen content, and consequently much lower reactivity than straight-run vacuum gas oils during fluid catalytic cracking (FCC). The conversion of H-Oil gas oils observed in a laboratory catalytic cracking unit at constant operating conditions [...] Read more.
H-Oil gas oils have a higher density and higher nitrogen content, and consequently much lower reactivity than straight-run vacuum gas oils during fluid catalytic cracking (FCC). The conversion of H-Oil gas oils observed in a laboratory catalytic cracking unit at constant operating conditions showed a 20 wt.% lower conversion rate than straight-run hydrotreated vacuum gas oil. Thus, a revamp of commercial FCC units, and the selection of a higher activity catalyst with lower coke selectivity is needed to provide the stable trouble-free operation of the unit. The performed revamp of the commercial FCC unit allowed a stable operation at a higher throughput. It also allowed an increased riser outlet temperature from 532 to 550 °C; increased maximum allowable regenerator temperature from 705 to 730 °C; decreased afterburning from 12 to 6 °C; decreased NOx emissions in the flue gas from 250 to 160 mg/Nm3; improved catalyst regeneration; decreased catalyst losses to 0.0142 kg/t feed; and improved catalyst circulation at a higher throughput. It was confirmed in the commercial FCC unit that the H-Oil light vacuum gas oil is the least reactive H-Oil gas oil during catalytic cracking. Full article
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