Evidence map›Paper›PMID 41140487›Full record

ArticleRSC advances2025

Spatiotemporal imaging analysis of mesoscale mass transfer performance of an FCC catalyst.

Lei Yu, Panpeng Wei, Li Zhang, Yunfeng Zheng, Huimin Guan, Huan Wang, Yucai Qin, Lijuan Song, Xionghou Gao, Shengwen Li

Abstract read
In one paragraph

Article in RSC advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Lei YuCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.
Panpeng WeiCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.
Li ZhangLanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Lanzhou 730060 Gansu China.
Yunfeng ZhengLanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Lanzhou 730060 Gansu China.
Huimin GuanCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.
Huan WangCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.
Yucai QinCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.ORCID https://orcid.org/0000-0001-6494-5562
Lijuan SongCollege of Petrochemical Engineering, Liaoning Petrochemical University Fushun 113001 Liaoning China wanghuangryx@163.com qinyucai@lnpu.edu.cn lsong@lnpu.edu.com.ORCID https://orcid.org/0000-0002-7816-2902
Xionghou GaoLanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Lanzhou 730060 Gansu China.
Shengwen LiChina National Aviation Fuel Group Liaoning Petroleum Co., Ltd. Shenyang 110000 Liaoning China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mass transfer performance of fluid catalytic cracking (FCC) catalysts is a key factor affecting the reaction activity and selectivity of catalytic cracking. This study employs confocal laser scanning microscopy with rhodamine B as a macromolecular fluorescent probe to simulate and investigate the mesoscale mass transfer behavior of heavy oil molecules on an FCC catalyst, achieving spatiotemporal imaging analysis of mass transfer patterns within catalyst microspheres. Results revealed that after 10 min, the probe molecules penetrated only about one-tenth of the microsphere's depth below the surface layer. Moreover, significant variations in concentration distribution were observed at different locations. This phenomenon stemmed from the compositional and structural heterogeneity across distinct regions of FCC catalyst particles, resulting in differential diffusion rates for the probe molecules. Combined with Fick's law calculations, the effective diffusion coefficient was determined to be in the order of 10

Identifiers

PMID41140487
PMCPMC12550682

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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.