ArticleChemistry (Weinheim an der Bergstrasse, Germany)2020
Single Particle Assays to Determine Heterogeneities within Fluid Catalytic Cracking Catalysts.
Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Fluorescent nanoplastics: What steps are needed towards a representative toolkit?Microplastics and nanoplastics · 2026Review
- Visualizing Composition and Functionality of Porous Catalysts Using Dual-Emissive Fluorescent Nanoprobes.ACS central science · 2025Article
- Unravelling potential reaction intermediates during catalytic pyrolysis of polypropylene with microscopy and spectroscopy.Catalysis science & technology · 2024Article
- Droplet microreactor for high-throughput fluorescence-based measurements of single catalyst particle acidity.Microsystems & nanoengineering · 2023Article
- Advancing the Compositional Analysis of Olefin Polymerization Catalysts with High-Throughput Fluorescence Microscopy.Journal of the American Chemical Society · 2022Article
- Plastic Waste Conversion over a Refinery Waste Catalyst.Angewandte Chemie (International ed. in English) · 2021Article
- Single Particle Assays to Determine Heterogeneities within Fluid Catalytic Cracking Catalysts.Chemistry (Weinheim an der Bergstrasse, Germany) · 2020Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Fluid catalytic cracking (FCC) is an important process in oil refinery industry to produce gasoline and propylene. Due to harsh reaction conditions, FCC catalysts are subject to deactivation through for example, metal accumulation and zeolite framework collapse. Here, we perform a screening of the influence of metal poisons on the acidity and accessibility of an industrial FCC catalyst material using laboratory-based single particle characterization that is, μ-XRF and fluorescence microscopy in combination with probe molecules. These methods have been performed on density-separated FCC catalyst fractions, allowing to determine interparticle heterogeneities in the catalyst under study. It was found that with increasing catalyst density and metal content, the acidity and accessibility of the catalyst particles decreased, while their distribution narrowed with catalyst age. For example, particles containing high Ni level possessed very low acidity and were hardly accessible by a Nile Blue dye. Single catalyst particle mapping identifies minority species like the presence of a phosphated zeolite ZSM-5-containing FCC additive for selective propylene formation, catalyst particles without any zeolite phase and catalyst particles, which act as a trap for SO
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Registered trials
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