低密度聚乙烯
催化作用
开裂
苯
催化裂化
产量(工程)
镍
溶解
材料科学
聚乙烯
汽油
化学工程
沸石
化学
冶金
有机化学
工程类
作者
Syie Luing Wong,Norzita Ngadi,Tuan Amran Tuan Abdullah,Ibrahim Mohammed Inuwa
标识
DOI:10.1021/acs.iecr.5b04518
摘要
Among the various processes and reactor designs in polymer cracking, catalytic cracking of polymer dissolved in solvent offers interesting features. In the present research, catalytic cracking of low-density polyethylene (LDPE) dissolved in benzene in a fixed-bed reactor was studied. The catalysts used included three zeolites in original form and nickel (Ni)-impregnated forms. The LDPE conversions achieved were high (>98%) despite the short retention times. The catalytic cracking of LDPE produced liquid in the gasoline range, gases ranged from C1 to C4, and hydrogen gas. The increase in catalyst acidity improved gas yield at the expense of the liquid yield. Although high catalyst acidity had less influence toward liquid product composition, it led to higher degree of cracking of the gaseous products. The dissolution of LDPE in benzene led to high cracking rate despite short retention time and produced liquid products that can be used as fuels.
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