Abstract
Zeolite Y is the active phase of the modern fluid catalytic cracking (FCC) catalyst. However, a functional and active FCC catalyst comprises, in addition to zeolite Y, matrices and a binder that introduce some levels of synergistic interaction between the catalyst components, impacting its activity. This study investigates the interactive properties of a zeolite-matrix-binder composite on a typical FCC catalyst using various characterization techniques. Characterization of synthesized FCC catalyst samples reveals changes in the structural composition of zeolite Y dependent upon the type and ratio of binder materials. The binder is important in the crystallization of the final composite. Acidic binder induces dealumination of zeolite, leading to amorphization, loss of Brønsted acid sites, framework structure impairment, and the formation of defective sites. TEM indicates the formation of zeolite-matrix interfaces upon binding of zeolite by the matrix. Depending on the extent and severity of thermal processing, the clay–alumina–silica binder undergoes dehydroxylation to varying degrees by cross-linking of terminal hydroxyl groups between neighboring binder particles, which contributes to the increased thermal and mechanical stability of the bound catalysts.
Funding source: Natural Science Foundation of Shandong Province
Award Identifier / Grant number: ZR201702160196, ZR2012BM014, ZR2016BM28
Funding source: Natural Science Foundation of China
Award Identifier / Grant number: 51601223, 21206195, 21776311
Funding source: National Natural Science Foundation of China and China National Petroleum Corporation
Award Identifier / Grant number: U1362202
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Research funding: This work was financially supported by the Joint Funds of the National Natural Science Foundation of China and China National Petroleum Corporation (U1362202), Natural Science Foundation of China (51601223, 21206195, 21776311), the Fundamental Research Funds for the Central Universities (17CX05018, 17CX02056, 14CX02050A, 14CX02123A), Shandong Provincial Natural Science Foundation (ZR201702160196, ZR2012BM014, ZR2016BM28).
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© 2024 IUPAC & De Gruyter
Articles in the same Issue
- Frontmatter
- In this issue
- Preface
- African Early Career Chemists Workshop & 8th Annual Symposium of the American Chemical Society, Nigeria International Chapter 2023
- Conference papers
- Design and simulation of 30 000 tons per year of cumene plant from natural gas field
- Activity profiling of natural and synthetic SARS-Cov-2 inhibitors using molecular docking analysis
- Efficiency of green synthesised carbon nanotubes from Moringa oleifera leaf extract as potential toxic metals adsorbent in polluted water
- Elucidating the interaction of FCC catalyst components: the discrete roles of matrix and binder on zeolite structure
- Coconut shell-derived green synthesised carbon nanotubes for clean-up of crude oil spills
- Electrodeposition behaviour of samarium in 1,3-dimethyl-2-imidazolidone solvent
- Special topic paper
- Importance of dielectric friction effect on polyelectrolytes conductivity
Articles in the same Issue
- Frontmatter
- In this issue
- Preface
- African Early Career Chemists Workshop & 8th Annual Symposium of the American Chemical Society, Nigeria International Chapter 2023
- Conference papers
- Design and simulation of 30 000 tons per year of cumene plant from natural gas field
- Activity profiling of natural and synthetic SARS-Cov-2 inhibitors using molecular docking analysis
- Efficiency of green synthesised carbon nanotubes from Moringa oleifera leaf extract as potential toxic metals adsorbent in polluted water
- Elucidating the interaction of FCC catalyst components: the discrete roles of matrix and binder on zeolite structure
- Coconut shell-derived green synthesised carbon nanotubes for clean-up of crude oil spills
- Electrodeposition behaviour of samarium in 1,3-dimethyl-2-imidazolidone solvent
- Special topic paper
- Importance of dielectric friction effect on polyelectrolytes conductivity