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<strong>In-situ production of valuable aromatics via pyrolysis of waste polypropylene using commercial catalyst ZSM-5</strong>

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Title Statement <strong>In-situ production of valuable aromatics via pyrolysis of waste polypropylene using commercial catalyst ZSM-5</strong>
 
Added Entry - Uncontrolled Name Gaurh, Pramendra ; Department of Chemical Engineering & Technology, Indian Institute of Technology(Banaras Hindu University)
Pramanik, Hiralal ; Department of Chemical Engineering & Technology, Indian Institute of Technology(Banaras Hindu University)
 
Uncontrolled Index Term GC-FID; BTEX; Polypropylene; Multiphase pyrolysis; Commercial ZSM-5
 
Summary, etc. Waste polypropylene has been subjected to pyrolysis followed by in-situ aromatization in a specially designed semi batch reactor at the temperature ranging from 500 - 800°C. The molecules of interest are valuable aromatics benzene, toluene, ethyl benzene and xylene (BTEX) which appeared highest amount in the liquid mixture. The catalyst used is commercial ZSM-5 (30:1). The catalytic pyrolysis of PP is studied in a semi batch reactor in two different phases, keeping the catalyst in the liquid phase (L-type) and liquid and vapor phase/multiphase (M-type), respectively. The BTEX yield is enhanced significantly using multiphase catalytic pyrolysis of polypropylene. The catalytic performance of ZSM-5 catalyst for PP pyrolysis is evaluated with respect to target aromatics BTEX. The thermal pyrolysis of PP produced maximum liquid yield of 80.56 wt. % at a temperature of 700°C. The commercial catalysts ZSM-5 produced highest liquid yield of 86.3 wt. % for liquid phase (L-type) pyrolysis. The BTEX yield is significantly increased from 30.9 wt.% for thermal pyrolysis to 53.09 wt. % for catalytic multiphase/M-type pyrolysis. Almost 72 % increase in BTEX yield is recorded for catalytic multiphase/M-type pyrolysis in comparison to thermal process. The pyrolysis oil is analyzed using GC-FID, carbon residue test and other fuel testing methods to examine the suitability of its end use and aromatic content.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2020-08-21 13:49:58
 
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http://op.niscair.res.in/index.php/IJCT/article/view/23613
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 27, ##issue.no## 2 (2020): Indian Journal of Chemical Technology
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCT/article/download/23613/465473778
http://op.niscair.res.in/index.php/IJCT/article/download/23613/465473781
http://op.niscair.res.in/index.php/IJCT/article/download/23613/465473782