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Performance of Different Catalysts for the In Situ Cracking of the Oil-Waxes Obtained by the Pyrolysis of Polyethylene Film Waste. SUSTAINABILITY 2020. [DOI: 10.3390/su12135482] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Currently, society is facing a great environmental problem, due to the large amount of plastic waste generated, most of which is not subjected to any type of treatment. In this work, polyethylene film waste from the non-selectively collected fraction was catalytically pyrolyzed at 500 °C, 20 °C/min for 2 h, in a discontinuous reactor using nitrogen as an inert gas stream. The main objective of this paper is to find catalysts that decrease the viscosity of the liquid fraction, since this property is quite meaningful in thermal pyrolysis. For this purpose, the three products of catalytic pyrolysis, the gaseous fraction, the solid fraction and the liquid fraction, were separated, obtaining the yield values. After that, the aspect of the liquid fraction was studied, differentiating which catalysts produced a larger quantity of waxy fraction and which ones did not. The viscosity of these samples was measured in order to confirm the catalysts that helped to obtain a less waxy fraction. The results showed that the zeolites Y and the zeolites β used in this study favor the obtaining of a compound with a smaller amount of waxes than for example catalysts such as FCC, ZSM-5 or SnCl2.
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Zhou X, Mayes HB, Broadbelt LJ, Nolte MW, Shanks BH. Fast pyrolysis of glucose‐based carbohydrates with added NaCl part 1: Experiments and development of a mechanistic model. AIChE J 2015. [DOI: 10.1002/aic.15106] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xiaowei Zhou
- Dept. of Chemical and Biological EngineeringNorthwestern UniversityEvanston IL60208
| | - Heather B. Mayes
- Dept. of Chemical and Biological EngineeringNorthwestern UniversityEvanston IL60208
| | - Linda J. Broadbelt
- Dept. of Chemical and Biological EngineeringNorthwestern UniversityEvanston IL60208
| | - Michael W. Nolte
- Dept. of Chemical and Biological EngineeringIowa State UniversityAmes IA50011
| | - Brent H. Shanks
- Dept. of Chemical and Biological EngineeringIowa State UniversityAmes IA50011
- Center for Biorenewable Chemicals (CBiRC), Iowa State UniversityAmes IA50011
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Belyi VA, Udoratina EV, Kuchin AV. Kinetics of the thermocatalytic conversion of lignocellulose. KINETICS AND CATALYSIS 2015. [DOI: 10.1134/s002315841505002x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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