Catalytic pyrolysis of waste tire using HY/MCM-41 core-shell composite

Namchot, Witsarut; Jitkarnka, Sirirat

doi:10.1016/j.jaap.2016.08.009

Cited by 38 publications

(20 citation statements)

References 19 publications

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“…Many studies focus on the design of the catalyst such that the appropriate porous arrangements are chosen to enhance selectivity and conversion. [124,[218][219][220] This is because, as with hierarchical catalysts, synthesis conditions can severely affect the crystallinity of the core-shell materials.…”

Section: Hierarchical and Core-shell Catalystsmentioning

confidence: 99%

“…By coating microporous zeolites with mesoporous silica‐alumina, the advantageous properties of both types of catalysts can be meshed into one material. Many studies focus on the design of the catalyst such that the appropriate porous arrangements are chosen to enhance selectivity and conversion [124,218–220] . This is because, as with hierarchical catalysts, synthesis conditions can severely affect the crystallinity of the core‐shell materials.…”

Section: Heterogeneous Catalystsmentioning

confidence: 99%

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The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

2020

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, respectively. Her graduate research focused on the fundamental understanding of deoxygenation mechanisms for biomass probe molecules on single crystals and thin films. During her graduate career, she received the DOE Science Graduate Student Research (SCGSR) award (2019) and conducted surface science research at Brookhaven National Lab. She now is a postdoctoral researcher at the University of Wisconsin-Madison. Her research focuses on surface spectroscopy and controlled design of heterogeneous catalysts. Melissa C. Cendejas received her B.A. (2016) in Chemistry and English from Williams College. There, she worked on the synthesis of conjugated organic molecules and phosphorusbased surfactants. She then started her PhD in Chemistry at the University of Wisconsin-Madison under the supervision of Prof. Ive Hermans. She studies active site formation on boron-based catalysts. She received the DOE Office of Science Graduate Student Research (SCGSR) award (2020) to perfrom in situ x-ray spectroscopy of catalysts at Stanford Synchrotron Radiation Lightsourse. Prof. Dr. Ive Hermans obtained his Ph.D. from KU Leuven University in Belgium in 2006. In addition to his scientific education, he also holds a postgraduate degree in Business Administration (KU Leuven, 2006). After postdoctoral research on in situ spectroscopy and reaction engineering with Prof. Alfons Baiker, he became assistant professor for heterogeneous catalysis (spring 2008) at ETH Zurich in Switzerland. January 2014, Prof. Hermans moved to the University of Wisconsin-Madison, holding a dual appointment in the Department of Chemistry and the Department of Chemical and Biological Engineering. His group focuses on the mechanistic understanding of catalytic technology using a variety of techniques.

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Section: Hierarchical and Core-shell Catalystsmentioning

confidence: 99%

Section: Heterogeneous Catalystsmentioning

confidence: 99%

The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

2020

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“…In the process of pyrolysis, adding a catalyst can reduce the activation energy and make the pyrolysis reaction more rapid and thorough [10][11][12]. It can also improve the quality of pyrolysis oil and help enterprises specializing in cracking waste tires increase their economic benefits.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Spent FCC Catalysts for the Catalytic Cracking Process of Waste Tires

et al. 2019

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Research on the synergistic high-value reuse of waste tires and used catalysts in spent fluid catalytic cracking (FCC) catalysts was carried out in this study to address the serious ecological and environmental problems caused by waste tires and spent FCC catalysts. The experiment, in which a spent FCC catalyst was applied to the catalytic cracking of waste tires, fully utilized the residual activity of the spent FCC catalyst and was compared with a waste tire pyrolysis experiment. The comparative experimental results indicated that the spent FCC catalyst could improve the cracking efficiency of waste tires, increase the output of light oil in pyrolysis products, and improve the quality of pyrolysis oil. It could also be used for the conversion of sulfur compounds during cracking. The content of 2-methyl-1-propylene in catalytic cracking gas was found to be up to 65.59%, so a new method for producing high-value chemical raw materials by the catalytic cracking of waste tires with spent FCC catalysts is proposed.

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“…Pyrolysis does not only serve as an energy recovery route for used tires but also the process conditions can be optimized to favor the fraction of interest and obtain other high-value products (Qunhui Lin., Guanyi Chen., 2012). e three basic products obtainable from the pyrolysis process include liquid fraction (pyrolytic oil), solid residue (char), and gases [3,[10][11][12]. Reports abound in the literature on the suitability of pyrolysis as a thermochemical method could be manipulated to achieve different objectives in used tires recycling [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…An example of such process condition parameter entails the application of catalyst during pyrolysis, which could practically influence the yield and quality of the pyrolysis product particularly the liquid fraction [12,15].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Synthesized Zeolite for Improved Properties of Pyrolytic Oil Derived from Used Tire

Osayi

Osifo

2019

International Journal of Chemical Engineering

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This paper reports the investigation of zeolite NaY synthesized from kaolin, a locally abundant soil material found in the Benin City metropolis, Nigeria, as a suitable catalyst and its effect on the properties of pyrolytic oil produced from used tires. The pyrolysis process was conducted from a range of 1 to 10 wt.% of catalyst concentration to the used tire at an operating temperature of 600°C, heating rate of 15°C/min, and particle size of 6 mm. An increase in the catalyst weight gave a maximum yield of catalytic pyrolytic oil (CPO) of 21.3 wt.% at a catalyst-to-tire ratio of 7.5 wt.%. Although this was lower than the noncatalyzed pyrolytic oil yield (34.40 wt.%), the quality in terms of chemical composition and hydrocarbon fuel range varied from that of the noncatalyzed pyrolytic oil, as indicated by the FT-IR, NMR, and GC-MS analyses. From the GC-MS result, the CPO gave a benzene yield higher than that of noncatalyzed pyrolytic oil. The CPO benzene yield can be ranked as CPO (5 wt.%) > CPO (1 wt.%) > CPO (10 wt.%) > CPO (7.5 wt.%) > noncatalyzed pyrolytic oil. The catalyst also improved the yield of other valuable chemicals such as ethylbenzene, o- and p-xylene, styrene, toluene, quinoline, pyrene, thiophene, P-cresol, phenol, and limonene in the pyrolytic oil. For hydrocarbon range, the catalyst displayed the potential to increase the yield of carbon range (C6–C15), which is similar to gasoline (C6–C12) and kerosene (C11–C14), with a lower yield of diesel and fuel oils (C11–C20) when compared to the noncatalyzed pyrolytic oil.

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Catalytic pyrolysis of waste tire using HY/MCM-41 core-shell composite

Cited by 38 publications

References 19 publications

The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

Experimental Study on Spent FCC Catalysts for the Catalytic Cracking Process of Waste Tires

Utilization of Synthesized Zeolite for Improved Properties of Pyrolytic Oil Derived from Used Tire

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