Performance analysis and production of aromatics for ex situ catalytic pyrolysis of engineered WEEEShow others and affiliations
2024 (English)In: Journal of Analytical and Applied Pyrolysis, ISSN 0165-2370, E-ISSN 1873-250X, Vol. 179, article id 106510Article in journal (Refereed) Published
Abstract [en]
Ex situ catalytic pyrolysis of engineered waste electrical and electronic equipment (WEEE) was conducted in a two-stage reactor using HZSM-5 catalyst. The effect of the catalysis temperature and the catalyst-to-feedstock (C/F) ratio on products yield, gas and oil composition, and products characterization were investigated in this study. Results indicated that lower reforming temperature and C/F ratio favored organic fractions production. The highest yield of organic fraction was obtained at a catalysis temperature of 450 °C and at a C/F ratio of 0.15, corresponding to 28.5 and 27.4 wt %, respectively. The highest selectivity toward aromatic hydrocarbons and the lowest TAN value of the organic fraction were obtained at a catalysis temperature of 450 °C and a C/F ratio of 0.2, respectively. Most of the alkali and transition metals and 23 % of Br remained in the solid residue after the catalytic pyrolysis of low-grade electronic waste (LGEW).
Place, publisher, year, edition, pages
Elsevier BV , 2024. Vol. 179, article id 106510
Keywords [en]
Aromatics, C/F ratio, Catalytic pyrolysis, HZSM-5, Reforming temperature, WEEE
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-346164DOI: 10.1016/j.jaap.2024.106510ISI: 001217955700001Scopus ID: 2-s2.0-85190944883OAI: oai:DiVA.org:kth-346164DiVA, id: diva2:1855949
Note
QC 20240506
2024-05-032024-05-032025-02-18Bibliographically approved