Perspective on Catalytic Biomass Pyrolysis Bio-oils: Essential Role of Synergistic Effect of Metal Species Co-substituti
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Perspective on Catalytic Biomass Pyrolysis Bio‑oils: Essential Role of Synergistic Effect of Metal Species Co‑substitution in Perovskite Type Catalyst Rahmiye Zerrin Yarbay Şahin1,2 · Nurgül Özbay1 Received: 24 July 2020 / Accepted: 14 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Due to being an economic alternative to various oxides and even noble metals in many catalytic applications, perovskites are getting interest day by day by the researchers. The aim of this study is to evaluate the synergistic effect of metal species co-substitution in perovskite type catalysts in different biomass types pyrolysis process. Thus, evaluating the feedstocks and pyrolysis products in terms of yields, quality and potential use is successfully achieved. Perovskite-type catalysts aCo0.5Ni0.5O3 were prepared by sol–gel method, characterized by N 2 adsorption– LaCo0.5Mn0.5O3, LaMn0.5Ni0.5O3 and L desorption, XRD and SEM techniques, and performed in the catalytic pyrolysis of two biomass samples (date seed and mandarin peel) in a tubular reactor at 520 °C with 100 °C/min and 100 c m3/min N2 atmosphere. Partial substitution of Bʹ was found to favor the catalytic activity as compared to non-catalytic results. The best pyrolysis performance was obtained with LaMn0.5Ni0.5O3, achieving maximum bio-oil yield of 28.33 and 25.73% for date seed and mandarin peel, respectively. Moreover, the best performance of L aMn0.5Ni0.5O3 signifies the best synergistic effect between Ni and Mn. The bio-oil characterization including elemental analysis, 1H-NMR, FT-IR, and GC–MS results showed that catalysts favored to increase the H content and decrease the O content. It was also established that the bio-oil produced from date seed has the highest potential respecting upgrading the bio-oil to achieve valuable chemicals. Graphic Abstract
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10562-020-03394-7) contains supplementary material, which is available to authorized users. Extended author information available on the last page of the article
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R. Z. Yarbay Şahin, N. Özbay
Keywords Catalytic pyrolysis · Date seed · Mandarin peel · Perovskite · Synergistic effect Abbreviations DS Date seed MP Mandarin peel ZSMN LaMn0.5Ni0.5O3 ZSCM LaCo0.5Mn0.5O3 ZSCN LaCo0.5Ni0.5O3 NIST National Institute of Standards and Technology FTIR Fourier-transform infrared spectroscopy GC–MS Gas chromatography–mass spectrometry HHV Higher heating value HC Hydrocarbon
1 Introduction Biomass is known as one of the common renewable energy sources in the light of energy use [1]. In order to evaluate the agronomic benefits of biomass, several factors as well as the biomass feedstock selection and transportation requirements should be taken account. Although, the process seems far away from commercialization, investigations at lab scale are the most important cooperators to show the way to build up more efficient production processes and
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