Hydrocracking of a plastic mixture over various micro-mesoporous composite zeolites

Munir, Dureem; Abdullah, .; Piepenbreier, Frank; Usman, Muhammad R.

doi:10.1016/j.powtec.2017.01.037

Cited by 51 publications

(40 citation statements)

References 45 publications

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“…Numerous studies have shown that lower acid content ASA catalysts have high selectivities toward liquid oil products, whereas high-acid content ASA catalysts produce higher gas volume. [96,[141][142][143] The Al-SBA-15 [101] HDPE Al-MCM-41 [102] LDPE TiAl-β-zeolite [102] LDPE [116,117] NiO pyrolysis + HY zeolite catalysis [82] [120] HDPE Core-shell USY/SBA-16 [124] HDPE…”

Section: Amorphous Sio 2 à Al 2 Omentioning

confidence: 99%

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: Amorphous Sio 2 à Al 2 Omentioning

confidence: 99%

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

2020

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“…The chemical recycling of plastic waste like pyrolysis, catalytic cracking and hydrocracking are gained good characteristics of fuels, when compared over the other process. Although chemical recycling of waste plastic is reliable and sustainable method to producing hydrocarbon [8]. The pyrolysis is one of the methods of chemical recycling to produce hydrocarbon range fuels.…”

Section: Revised Manuscript Received On December 5 2019mentioning

confidence: 99%

“…Munir et al [8] has Used mixed plastic (HDPE, LDPE, PP and PS) to hydrocraking with two micro-mesoporous composite catalysts. The results indicated that the catalyst Al-SBA-15 and MZ16 are produced highest yield of oil 59% and 54% at highest temperature of 425 o C. AL-SBA-15 catalysts were showed better performance, chosen towards liquid formation and increasing hydrogen ability at very low temperature.…”

Section: Catalytic Hydrocrackingmentioning

confidence: 99%

Plastic fuel Extraction from Various Waste Plastics

Pradeep¹,

Gowthaman²

2019

IJEAT

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The rapid growth of the world population which leads to increase demand of plastic in many sectors such as construction, medical, engineering applications, automotive, aerospace and many food industries for packing purpose. These rapid populations of plastic create some serious issues to the environment and living beings. The plastics are non- degradable and emit poisonous gases during burning. In recent years, many researches being conducted to resolve the disposal issues of waste plastics and trying to convert it into useful products. The plastic is a material consists of any wide range of synthetic or semi-synthetic organic compounds, which are long molecules built around chains of carbon and hydrogen atoms. The conversion of waste plastics to hydrocarbon (HC) fuel is an effective idea for disposing of waste plastics. It will be controlled plastic population and fulfill the needs of petroleum fuel in the future. As per the survey, the fossil fuels run out earlier in 2088 due to drastic growth of automobiles and high production cost. The waste plastic contains hydrocarbon with calorific value of 41- 47MJ and it is almost equal to the calorific value of fossil fuels. There are many methods being used to extract liquid HC fuel from waste plastics and it has been reviewed elaborately in this paper. It also reviews composition of various plastics like polyethylene terephthalate, high density polyethylene, low density polyethylene, polyvinyl chloride and polypropylene polystyrene and analyse their properties. In addition, it includes the selection of plastic and catalyst for extraction process, research gap in the existing extraction methods and the effect temperature and process timing on oil yield.

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“…These zeolite catalysts showed quite favorable activity, but the product obtained comprised mostly gases pertaining to the microporous nature of these catalysts [26,27]. The catalysts that contain mesopores such as Al-SBA-15 [28], Al-SBA-16 [25,28,29], and Al-MCM-41 [10] are also used in the literature though by only a few researchers. The mesoporous catalysts demonstrate excellent diffusion of heavier molecules and the product obtained consists of higher liquid contents.…”

Section: Introductionmentioning

confidence: 99%

“…A more liquid containing and more useful product is thus resulted. Composites of mesoporous catalysts with zeolite nanoseeds, for the plastic hydrocracking, are used by Munir and Usman [28,29]. However, the results obtained over these catalysts were not satisfactory.…”

Section: Introductionmentioning

confidence: 99%

Composite zeolite beta catalysts for catalytic hydrocracking of plastic waste to liquid fuels

Munir

Amer

Aslam

et al. 2020

Mater Renew Sustain Energy

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The conversion of model waste plastic mixture into high-value liquid product was studied in the presence of hydrogen and composites of zeolite beta catalysts. For the sake of comparison, the conversion of actual waste plastic mixture and highdensity polyethylene was also carried out. The composite zeolite beta catalysts were synthesized using a range of silica-toalumina ratios, alkali concentrations, and hydrothermal treatment times. SEM, EDX, XRD, N 2-BET, FTIR, and py-FTIR were used for the characterization of the catalysts. The catalytic experiments were conducted in a 500 ml stirred batch reactor at 20 bar initial cold H 2 pressure and the temperature of the reaction was varied between 360 and 400 °C. The two composite catalysts, BC27 and BC48, prepared without alkali pretreatment were found to be the most suitable catalysts. With BC27 and BC48 at 400 °C, 93.0 wt% conversion was obtained with actual plastic mixture and the liquid yield exceeded 68.0 wt%. Experiments with the regenerated catalysts showed their performance comparable to the fresh catalysts.

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Hydrocracking of a plastic mixture over various micro-mesoporous composite zeolites

Cited by 51 publications

References 45 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

Plastic fuel Extraction from Various Waste Plastics

Composite zeolite beta catalysts for catalytic hydrocracking of plastic waste to liquid fuels

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