Mechanistic investigation of the catalytic conversion of model compounds for plastic pyrolysis oil (1-octene, octadiene, octane, and toluene) over ZSM-5 in a fixed-bed reactor was studied. 1-Octene breaks down into smaller olefins, which undergo further cracking, oligomerization, cyclization, and hydrogen transfer to eventually produce benzene, toluene, xylene (BTX), coke, and hydrogen. The effect of contact time on 1-octene conversion was further investigated and compared with thermodynamics analyses to elucidate the reaction network. Under the reaction conditions (500 oC, 1 atm), octadiene undergoes thermal coking, significantly contributing to reactor fouling. The products from octane cracking are similar to the products from 1-octene conversion whereas toluene undergoes disproportionation, dealkylation and coking. The analysis of spent catalyst showed long-chain hydrocarbons created by oligomerization reactions filled the pores and covered the surface of the catalyst. As a result, when mesoporous ZSM-5 is used instead of conventional, product selectivity is maintained for 70 hours in time-on-stream experiments.
Dong, Son, et al. "Catalytic Conversion of Model Compounds of Plastic Pyrolysis Oil over ZSM-5." Applied Catalysis. B, Environmental, vol. 324, Nov. 2022. https://doi.org/10.1016/j.apcatb.2022.122219
Dong, Son, Li, Houqian, Bloede, Iris K., Al Abdulghani, Abdullah J., Lebrón-Rodríguez, Edgard A., Huber, George W., & Hermans, Ive (2022). Catalytic Conversion of Model Compounds of Plastic Pyrolysis Oil over ZSM-5. Applied Catalysis. B, Environmental, 324. https://doi.org/10.1016/j.apcatb.2022.122219
Dong, Son, Li, Houqian, Bloede, Iris K., et al., "Catalytic Conversion of Model Compounds of Plastic Pyrolysis Oil over ZSM-5," Applied Catalysis. B, Environmental 324 (2022), https://doi.org/10.1016/j.apcatb.2022.122219
@article{osti_1900409,
author = {Dong, Son and Li, Houqian and Bloede, Iris K. and Al Abdulghani, Abdullah J. and Lebrón-Rodríguez, Edgard A. and Huber, George W. and Hermans, Ive},
title = {Catalytic Conversion of Model Compounds of Plastic Pyrolysis Oil over ZSM-5},
annote = {Mechanistic investigation of the catalytic conversion of model compounds for plastic pyrolysis oil (1-octene, octadiene, octane, and toluene) over ZSM-5 in a fixed-bed reactor was studied. 1-Octene breaks down into smaller olefins, which undergo further cracking, oligomerization, cyclization, and hydrogen transfer to eventually produce benzene, toluene, xylene (BTX), coke, and hydrogen. The effect of contact time on 1-octene conversion was further investigated and compared with thermodynamics analyses to elucidate the reaction network. Under the reaction conditions (500 oC, 1 atm), octadiene undergoes thermal coking, significantly contributing to reactor fouling. The products from octane cracking are similar to the products from 1-octene conversion whereas toluene undergoes disproportionation, dealkylation and coking. The analysis of spent catalyst showed long-chain hydrocarbons created by oligomerization reactions filled the pores and covered the surface of the catalyst. As a result, when mesoporous ZSM-5 is used instead of conventional, product selectivity is maintained for 70 hours in time-on-stream experiments.},
doi = {10.1016/j.apcatb.2022.122219},
url = {https://www.osti.gov/biblio/1900409},
journal = {Applied Catalysis. B, Environmental},
issn = {ISSN 0926-3373},
volume = {324},
place = {United States},
publisher = {Elsevier},
year = {2022},
month = {11}}