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Plasma pyrolysis feasibility study of Spent Caustic waste to hydrogen production

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Abstract

Spent caustic is a used industrial caustic whose chemical content puts it in the special waste category. The disposal of this waste and the production of value-added products from it has attracted the attention of researchers not only to solve environmental problems but also to take advantage of its byproducts. This research has experimentally proved the transferred thermal plasma technology as a practical method feasible for the disposal of spent caustic. In this study, the applied voltage, electrical current, and feed rate are variable parameters, and others are kept constant. GC analysis showed H2 as the main product, which is environmentally beneficial. The percentage of hydrogen production of approximately 74% is a promising result, considering the difficulty of achieving such a high percentage of hydrogen.

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Authors and Affiliations

  1. Laser and Plasma Research Institute, Shahid Beheshti, University, G.C., Evin, Tehran, 19839-63113, Iran

    Rasoul Aghayee, Mohammadreza Khani, Farzaneh Ostovarpour, Mohammad Sadegh Abbassi Shanbehbazari, Mojtaba Shafiei & Babak Shokri

  2. Petrochemical Research and Technology Company, National Petrochemical Company, No. 27, Sarv Alley, Shirazi-C, P.O. Box 14358-84711, Mollasadra, Tehran, Iran

    Mahtab Gharibi

  3. Department of Physics, International University of Imam Khomeini, Qazvin, Iran

    Babak Mohammadhosseini

  4. Department of Physics, Shahid Beheshti University, G.C. Evin, 19839-63113, Tehran, Islamic Republic of Iran

    Babak Shokri

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  1. Rasoul Aghayee
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Aghayee, R., Khani, M., Ostovarpour, F. et al. Plasma pyrolysis feasibility study of Spent Caustic waste to hydrogen production. J Environ Health Sci Engineer (2023). https://doi.org/10.1007/s40201-023-00886-7

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