PMID- 36208512 OWN - NLM STAT- MEDLINE DCOM- 20221109 LR - 20221109 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 324 DP - 2022 Dec 15 TI - Catalytic pyrolysis of high-density polyethylene over nickel-waste chicken eggshell/HZSM-5. PG - 116392 LID - S0301-4797(22)01965-X [pii] LID - 10.1016/j.jenvman.2022.116392 [doi] AB - The main objective of the current work is to investigate the effect of nickel-waste chicken eggshell modified Hydrogen exchanged Zeolite Socony Mobil-5 (Ni-WCE/HZSM-5) on pyrolysis of high-density polyethylene (HDPE). Ni-WCE/HZSM-5 was synthesized via the impregnation incipient wetness (IWI) method with Ni and WCE mass loading of 4 and 12 wt% respectively. HZSM-5, CaO, WCE, WCE/HZSM-5, and Ni/HZSM-5 were prepared for comparison purposes with Ni-WCE/HZSM-5. All the synthesized catalysts were characterized for phase analysis, metal loading, surface morphology, and textural properties. The impregnation of nickel and WCE had significantly affected the original framework of HZSM-5, where the crystallinity percentage and average crystal size of HZSM-5 dropped to 44.97% and increased to 47.90 nm respectively. The surface morphology of HZSM-5 has drastically changed from a cubic-like shape into a spider web-like surface after the impregnation of WCE. The BET surface area of HZSM-5 has been lowered due to the impregnation of nickel and WCE, but the total pore volume has increased greatly from 0.2291 cm(3)/g to 0.2621 cm(3)/g. The catalyst performance was investigated in the pyrolysis of HDPE via a fixed bed reactor and the pyrolysis oil was further analysed to evaluate the distribution of C(6) to C(9)> hydrocarbons. Among the tested catalytic samples, the highest pyrolysis oil yield was achieved by WCE (80%) followed by CaO (78%), WCE/HZSM-5 (63%), HZSM-5 (61%), Ni/HZSM-5 (44%) and Ni-WCE/HZSM-5 (50%). For hydrocarbon distribution in pyrolysis oil, the Ni/HZSM-5 produced the highest of total C(6) and C(7) hydrocarbons at 12% and 27% respectively followed by WCE/HZSM-5 (4% and 20%), non-catalytic (5% and 13%), Ni-WCE/HZSM-5 (0% and 15%), WCE (0% and 10%), HZSM-5 (0% and 6%) and CaO (0% and 0%). CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Mohamad Dzol, M A A AU - Mohamad Dzol MAA AD - Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia. FAU - Balasundram, V AU - Balasundram V AD - Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia. Electronic address: vekes@utm.my. FAU - Shameli, K AU - Shameli K AD - Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia. FAU - Ibrahim, N AU - Ibrahim N AD - Energy Research Group, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia. FAU - Manan, Z A AU - Manan ZA AD - Process Systems Engineering Centre (PROSPECTS), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia. FAU - Isha, R AU - Isha R AD - College of Engineering, Universiti Malaysia Pahang, 26600, Pekan, Pahang, Malaysia. LA - eng PT - Journal Article DEP - 20221005 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 9002-88-4 (Polyethylene) RN - 7OV03QG267 (Nickel) RN - 1318-02-1 (Zeolites) RN - 0 (Hydrocarbons) RN - 0 (Biofuels) SB - IM MH - Animals MH - *Pyrolysis MH - Polyethylene MH - Nickel/chemistry MH - Chickens MH - Egg Shell MH - Hot Temperature MH - Catalysis MH - *Zeolites/chemistry MH - Hydrocarbons MH - Biofuels OTO - NOTNLM OT - HZSM-5 OT - Hydrocarbons OT - Nickel OT - Plastic wastes OT - Pyrolysis OT - Waste chicken eggshell COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/10/09 06:00 MHDA- 2022/11/10 06:00 CRDT- 2022/10/08 18:15 PHST- 2022/03/15 00:00 [received] PHST- 2022/09/12 00:00 [revised] PHST- 2022/09/26 00:00 [accepted] PHST- 2022/10/09 06:00 [pubmed] PHST- 2022/11/10 06:00 [medline] PHST- 2022/10/08 18:15 [entrez] AID - S0301-4797(22)01965-X [pii] AID - 10.1016/j.jenvman.2022.116392 [doi] PST - ppublish SO - J Environ Manage. 2022 Dec 15;324:116392. doi: 10.1016/j.jenvman.2022.116392. Epub 2022 Oct 5.