Evidence map›Paper›PMID 38976554›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024

Selective and Controllable Cracking of Polyethylene Waste by Beta Zeolites with Different Mesoporosity and Crystallinity.

Yanchao Liu, Weijiong Dai, Jiajun Zheng, Yanze Du, Quanhua Wang, Niklas Hedin, Bo Qin, Ruifeng Li

Abstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Yanchao LiuResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Weijiong DaiResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Jiajun ZhengResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Yanze DuSINOPEC Dalian Research Institute of Petroleum & Petrochemicals Co., Ltd, Dalian, 116045, China.
Quanhua WangResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Niklas HedinResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Bo QinSINOPEC Dalian Research Institute of Petroleum & Petrochemicals Co., Ltd, Dalian, 116045, China.
Ruifeng LiResearch Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China.ORCID https://orcid.org/0000-0002-3158-6337

Funding

China Petroleum & Chemical Corporation 121014-2National Natural Science Foundation of China U19B2003National Natural Science Foundation of China U21B20100
6 · The paper itself

Abstract

Waste plastics bring about increasingly serious environmental challenges, which can be partly addressed by their interconversion into valuable compounds. It is hypothesized that the porosity and acidity of a zeolite-based catalyst will affect the selectivity and effectiveness, enabling a controllable and selective conversion of polyethylene (PE) into gas-diesel or lubricating base oil. A series of embryonic, partial- and well-crystalline zeolites beta with adjustable porosity and acidity are prepared from mesoporous SBA-15. The catalysts and catalytic systems are studied with nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and adsorption kinetics and catalytic reactions. The adjustable porosity and acidity of zeolite-beta-based catalysts achieve a controllable selectivity toward gas-diesel or lubricating base oil for PE cracking. With a catalyst with mesopores and appropriate acid sites, a fast escape and reduced production of cracking of intermediates are observed, leading to a significant fraction (88.7%) of lubricating base oil. With more micropores, a high acid density, and strong acid strength, PE is multiply cracked into low carbon number hydrocarbons. The strong acid center of the zeolite is confirmed to facilitate significantly the activation of hydrogen (H

Indexed as

beta zeolitebulky moleculesembryonichydrocrackingplastic waste

Identifiers

PMID38976554
PMCPMC11425912

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.