{
  "abstract": "Zr-Beta zeolite containing exclusively Lewis acid sites (LAS) was synthesized and its catalytic performance in glycerol dehydration was compared with that of Al-Beta zeolite, which possesses both Brønsted acid sites (BAS) and LAS. Distinct differences in catalytic behavior were observed depending on the nature of the acid sites. The BAS-rich Al-Beta favored acrolein formation, whereas Zr-Beta shifted the selectivity toward acetol and acetaldehyde. These results indicate that LAS promote selective dehydration and rearrangement pathways while suppressing deeper dehydration routes. Zr-Beta also exhibited improved resistance to coke formation, with only 6% coke after 10 h of reaction. Under these conditions, glycerol conversion reached 26%, with selectivities of 52% to acetaldehyde and 46% to acetol. Reusability tests further confirmed the stability of Zr-Beta, which maintained high catalytic performance over successive cycles.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "Ariel J.T. da Silva"
    },
    {
      "name": "Marcos Júnior"
    },
    {
      "name": "Theogyna R.R.T. da Costa"
    },
    {
      "name": "Daniele Oliveira"
    },
    {
      "name": "Vinícius P.S. Caldeira"
    },
    {
      "name": "Tiago Braga"
    },
    {
      "name": "Lindiane Bieseki"
    },
    {
      "name": "Alexander Sachse"
    },
    {
      "name": "Anne G.D. Santos"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2v7c7p92qkm0j.bib",
  "cited_by": 0,
  "doi": "10.1016/j.cattod.2026.115990",
  "fulltext_url": null,
  "id": "2v7c7p92qkm0j",
  "issns": [
    "0920-5861"
  ],
  "landing_url": "https://hal.science/hal-05768975v1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "openalex",
      "2204|Catalysis for Biomass Conversion"
    ]
  ],
  "openalex": "W7213667350",
  "pdf_url": "https://hal.science/hal-05768975/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-19",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/2v7c7p92qkm0j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:43Z",
      "native_id": "hal-05768975",
      "source": "hal",
      "url": "https://hal.science/hal-05768975v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:0.chim",
      "subfield": "general"
    }
  ],
  "title": "Glycerol conversion to acetol catalyzed by aluminum-free Zr-beta zeolite: high selectivity and coke tolerance",
  "title_text": "Glycerol conversion to acetol catalyzed by aluminum-free Zr-beta zeolite: high selectivity and coke tolerance",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:43Z",
  "url": "https://research.draconitic.com/paper/2v7c7p92qkm0j",
  "venue": "Catalysis Today",
  "versions": []
}