Feedstock recycling from plastics and thermosets fractions of used computers. II. Pyrolysis oil upgrading

被引:60
作者
Vasile, Cornelia
Brebu, Mihai Adrian
Karayildirim, Tamer
Yanik, Jale
Darie, Hristea
机构
[1] Romanian Acad P Poni, Inst Macromol Chem, Dept Phys Chem Polymers, Iasi 700487, Romania
[2] Ege Univ, Fac Sci, Dept Chem, TR-35100 Izmir, Turkey
关键词
computer scraps; pyrolysis-hydrogenation; toxic products;
D O I
10.1016/j.fuel.2006.08.010
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Liquid products obtained from pyrolysis of plastics and thermosets fractions (keyboard, casings and printed circuits board and their mixture) of used computers were upgraded by thermal and catalytic hydrogenation. The effect of thermal hydrogenation was improved by using catalysts such as commercial hydrogenation DHC-8 catalyst and metal loaded activated carbon. The upgraded degradation products were separated in three fractions (residue, liquids and gases) and characterized by suitable methods such as gas chromatography (GC-MSD, GC-AED), infrared (FT-IR) and H-1-NMR spectroscopy, elemental analysis, etc. Using of catalyst mainly affected the product distribution of upgrading process. Liquids having high amount of aromatics were obtained by upgrading. Most of hazardous toxic compounds in liquids were eliminated after hydrogenation (e.g., halogens were removed mainly by converting them into gaseous hydrogen chloride and bromide). It has been established that the hydrogenation led to elimination of the most of hazardous toxic compounds, mainly those containing bromine. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:477 / 485
页数:9
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