The Ultra-Deep Desulfurization of Model Oil Using Amphipathic Lindqvist-Type Polyoxometalate-Based TiO 2 Nanofibres as C
- PDF / 2,872,923 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 49 Downloads / 159 Views
The Ultra-Deep Desulfurization of Model Oil Using Amphipathic Lindqvist-Type Polyoxometalate-Based TiO2 Nanofibres as Catalysts Jiawei Fu1 · Wenwen Ma1,2 · Yu Guo1 · Xiaonan Li1 · Haiyu Wang1 · Chen Fu1 · Hong Zhang1 Received: 24 July 2020 / Accepted: 16 October 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract A new amphipathic lindqvist-type polyoxometalate-based T iO2 nanofibres catalysts (50-DTA-MoO-TiO2 NF, DTA = CH3(CH2)11(CH3)3N, MoO = Mo6O192-, TiO2 NF = TiO2 nanofibres, the weight percentage of DTA-MoO was 50%) was obtained by electrospinning and applied in desulfurization of fuel. This catalyst presented outstanding desulfurization performance and reusability. Graphic Abstract The amphipathic lindqvist-type polyoxometalate-based TiO2 nanofibres were prepared successfully and examined as heterogeneous catalysts in removal of sulfur-containing compounds. At 333 K, 100% desulfurization efficiency of 500 ppm DBT model oil was achieved using 0.010 g 50-DTA-MoO-TiO2 NF as catalyst in 40 min with O/S molar ratio of 2:1 in ECODS.
Keywords Amphipathic catalysts · Nanofibres · Electrospinning · Clean fuels
1 Introduction Electronic supplementary material The online version of this article (doi:https://doi.org/10.1007/s10562-020-03432-4) contains supplementary material, which is available to authorized users. * Wenwen Ma [email protected] * Hong Zhang [email protected]; [email protected] Extended author information available on the last page of the article
With increasingly stringent standards of fuels quality, tremendous attention has been paid to researching in efficient desulfurization techniques to obtain fuels with ultra-low sulfur content [1]. Hydrodesulfurization (HDS) can remove the aliphatic and acyclic sulfur compounds, however, the application of HDS is restricted because of harsh reaction conditions and less effective for heterocyclic sulfur compounds [2]. At present, extractive catalytic oxidative desulfurization (ECODS) has become a hot research subject due
13
Vol.:(0123456789)
to its cost-effectiveness and no hydrogen consumption [3, 4]. In ECODS, oxidant and catalysts play an importance roles. H2O2 is the most extensively adopted oxidant due to high availability and environmental compatibility [5]. Developing high active catalysts to obtain clean-oil is very vital for the industrial application of ECODS [6]. Polyoxometalates (POMs) catalysts are widely used in removing organic substrates in view of its extraordinary physicochemical properties, high activity and environmentally friendly [7, 8]. Whereas, the low recyclability greatly hinders the practical industrial application of these catalysts. In order to overcome this issue, many methods have been proposed to fabricate POMs-based heterogeneous catalysts. Heterogeneous catalysts with excellent recyclability is considered as promising candidates for green catalytic application [9, 10]. For instance, the groups of Rezvani had prepared organic-inorganic hybrid nanocatalysts based Anderson-
Data Loading...
