Research on the Chlorine Removal and Upgrading of Waste Plastic Pyrolysis Oil Using Iron-Based Adsorbents

Hyo Sik Kim, Hyun-Ji Kim, Jihyeon Kim, Jin-Ho Kim, Tae-Jin Kang, Suk-Hwan Kang (), Yeji Lee, Soo Chool Lee, Chi-Seong Chang and Jong Wook Bae ()
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Hyo Sik Kim: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Hyun-Ji Kim: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Jihyeon Kim: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Jin-Ho Kim: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Tae-Jin Kang: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Suk-Hwan Kang: Clean Energy Conversion Center, Institute for Advances Engineering (IAE), 175-28 Goan-ro 51, Baegam-myen, Cheoin-gu, Yongin 17180, Republic of Korea
Yeji Lee: Research Institute of Advanced Energy Technology, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
Soo Chool Lee: Research Institute of Advanced Energy Technology, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
Chi-Seong Chang: Daehan Corporation, 82, Seongseo-ro 72-gil, Dalseo-gu, Daegu 42697, Republic of Korea
Jong Wook Bae: School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea

Energies, 2025, vol. 18, issue 13, 1-12

Abstract: The emergence of plastics as an essential item in modern society has led to the problem of accumulating plastic waste. Accordingly, research is being conducted around the world to reduce the production of new plastics and develop technologies to recycle waste plastics. Among the existing waste plastic recycling technologies, oil production is possible through pyrolysis, but the pyrolysis oil produced in this way has a wide carbon range (more than C5–C25), and a very high olefin content (the presence of aromatic compounds), and the resulting high calorific value of pyrolysis oil is limited in its application range. In the case of oil obtained by pyrolyzing waste plastic containing Cl, there is a concern about corrosion in the reactor. Accordingly, it is possible to diversify the range of use of pyrolysis oil produced by suppressing corrosion through Cl removal as well as oil upgrading through cracking. Therefore, this study used red mud mixed with a series of adsorbents for Cl removal and pyrolysis oil upgrade. The adsorbent was physically mixed with a binder (kaolin or methylcellulose) and activated carbon, and the results before and after the reaction were confirmed through basic characteristic analysis.

Keywords: waste plastic; pyrolysis; chlorine removal; oil upgrading; cracking; plastic recycling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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