Catalytic Degradation of High-Density Polyethylene on an Ultrastable-Y Zeolite. Nature of Initial Polymer Reactions, Pattern of Formation of Gas and Liquid Products, and Temperature Effects

2000 ◽  
Vol 39 (5) ◽  
pp. 1203-1208 ◽  
Author(s):  
George Manos ◽  
Arthur Garforth ◽  
John Dwyer
Keyword(s):  
Temperature Effects ◽  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density ◽  
Y Zeolite ◽  
Initial Polymer ◽  
Liquid Products ◽  
Polymer Reactions

Catalytic Degradation of High-Density Polyethylene over a Clay Catalyst Compared with Other Catalysts

2014 ◽  
Vol 28 (9) ◽  
pp. 6038-6045 ◽  
Author(s):  
Mi Liu ◽  
Jian K. Zhuo ◽  
Si J. Xiong ◽  
Qiang Yao
Keyword(s):  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density ◽  
Clay Catalyst

The effect of ZSM-5 zeolite acidity on the catalytic degradation of high-density polyethylene using simultaneous DSC/TG analysis

2012 ◽  
Vol 413-414 ◽  
pp. 183-191 ◽  
Author(s):  
A. Coelho ◽  
L. Costa ◽  
M.M. Marques ◽  
I.M. Fonseca ◽  
M.A.N.D.A. Lemos ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density ◽  
Tg Analysis ◽  
Zeolite Acidity

Thermal and thermo-catalytic degradation of high-density polyethylene waste

2004 ◽  
Vol 72 (2) ◽  
pp. 235-242 ◽  
Author(s):  
N. Miskolczi ◽  
L. Bartha ◽  
G. Deák ◽  
B. Jóver ◽  
D. Kalló
Keyword(s):  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density

Catalytic Degradation of High-Density Polyethylene in a Reactive Extruder

2008 ◽  
Vol 47 (15) ◽  
pp. 5175-5181 ◽  
Author(s):  
Michael D. Wallis ◽  
Sandeep Sarathy ◽  
Suresh K. Bhatia ◽  
P. Massarotto ◽  
Edward Kosior ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density

Effect of Microstructure of High Density Polyethylene on Catalytic Degradation: A Comparison Between Nano Clay and FCC

2017 ◽  
Vol 26 (4) ◽  
pp. 1540-1549 ◽  
Author(s):  
Abbas Kebritchi ◽  
Mehdi Nekoomansh ◽  
Fereidoon Mohammadi ◽  
Hossein Ali Khonakdar
Keyword(s):  
High Density Polyethylene ◽  
Catalytic Degradation ◽  
High Density ◽  
Nano Clay ◽  
Effect Of Microstructure

scholarly journals Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite

2018 ◽  
Vol 83 (7-8) ◽  
pp. 923-940
Author(s):  
Ivan Kojic ◽  
Achim Bechtel ◽  
Friedrich Kittinger ◽  
Nikola Stevanovic ◽  
Marko Obradovic ◽  
...  
Keyword(s):  
Open System ◽  
High Density Polyethylene ◽  
Synergetic Effect ◽  
Polar Compounds ◽  
High Density ◽  
Feed Stream ◽  
Gaseous Products ◽  
Liquid Products ◽  
Plastic Bag ◽  
Pre Treatment

Pyrolysis of high density polyethylene (HDPE) in the open system was studied. A plastic bag for food packing was used as a source of HDPE. Pyrolysis was performed at temperatures of 400, 450 and 500?C, which were chosen based on thermogravimetric analysis. The HDPE pyrolysis yielded liquid, gaseous and solid products. Temperature rise resulted in the increase of conversion of HDPE into liquid and gaseous products. The main constituents of liquid pyrolysates are 1-n-alkenes, n-alkanes and terminal n-dienes. The composition of liquid products indicates that the performed pyrolysis of HDPE could not serve as a standalone operation for the production of gasoline or diesel, but preferably as a pre-treatment to yield a product to be blended into a refinery or petrochemical feed stream. The advantage of a liquid pyrolysate in comparison to crude oil is the extremely low content of aromatic hydrocarbons and the absence of polar compounds. The gaseous products have desirable composition and consist mainly of methane and ethene. The solid residues do not produce ash by combustion and have high calorific values. Co-pyrolysis of HDPE with mineral-rich lignite indicated positive synergetic effect at 450 and 500?C, which is reflected through the increased experimental yields of liquid and gaseous products in comparison to theoretical ones.

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