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Open AccessArticle

A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions

Chemical Engineering Department, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
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Catalysts 2020, 10(10), 1157; https://doi.org/10.3390/catal10101157
Received: 17 August 2020 / Revised: 6 September 2020 / Accepted: 17 September 2020 / Published: 9 October 2020
The performance of a commercial FCC catalyst (designated as CY) and a physically mixed hybrid catalyst (80 wt.% CY and 20 wt.% HZSM-5-based catalyst, designated as CH) have been compared in the catalytic cracking of a vacuum gasoil (VGO)/bio-oil blend (80/20 wt.%) in a simulated riser reactor (C/O, 6gcatgfeed−1; t, 6 s). The effect of cracking temperature has been studied on product distribution (carbon products, water, and coke) and product lumps: CO+CO2, dry gas, liquified petroleum gases (LPG), gasoline, light cycle oil (LCO), heavy cycle oil (HCO), and coke. Using the CH catalyst, the conversion of the bio-oil oxygenates is ca. 3 wt.% higher, while the conversion of the hydrocarbons in the mixture is lower, yielding more carbon products (83.2–84.7 wt.% on a wet basis) and less coke (3.7–4.8 wt.% on a wet basis) than the CY catalyst. The CH catalyst provides lower gasoline yields (30.7–32.0 wt.% on a dry basis) of a less aromatic and more olefinic nature. Due to gasoline overcracking, enhanced LPG yields were also obtained. The results are explained by the high activity of the HZSM-5 zeolite for the cracking of bio-oil oxygenates, the diffusional limitations within its pore structure of bulkier VGO compounds, and its lower activity towards hydrogen transfer reactions. View Full-Text
Keywords: catalytic cracking; FCC; VGO; bio-oil; gasoline; HZSM-5 zeolite catalytic cracking; FCC; VGO; bio-oil; gasoline; HZSM-5 zeolite
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MDPI and ACS Style

Ibarra, Á.; Hita, I.; Arandes, J.M.; Bilbao, J. A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions. Catalysts 2020, 10, 1157. https://doi.org/10.3390/catal10101157

AMA Style

Ibarra Á, Hita I, Arandes JM, Bilbao J. A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions. Catalysts. 2020; 10(10):1157. https://doi.org/10.3390/catal10101157

Chicago/Turabian Style

Ibarra, Álvaro; Hita, Idoia; Arandes, José M.; Bilbao, Javier. 2020. "A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions" Catalysts 10, no. 10: 1157. https://doi.org/10.3390/catal10101157

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