One-Pot Extraction and Oxidative Desulfurization of Fuels with Molecular Oxygen in Low-Cost Metal-Based Ionic Liquids
One-Pot Extraction and Oxidative Desulfurization of Fuels with Molecular Oxygen in Low-Cost Metal-Based Ionic Liquids
复制标题
低成本金属基离子液体中分子氧一锅萃取和氧化脱硫燃料
DOI：
10.1021/acs.energyfuels.6b02624
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发表时间：
2017
期刊：
影响因子：
5.3
通讯作者：
Li Huaming
中科院分区：
文献类型：
--
作者：
Wang Chao;Chen Zhigang;Zhu Wangqin;Wu Peiwen;Jiang Wei;Zhang Ming;Li Hongping;Zhu Wenshuai;Li Huaming
以三乙胺盐酸盐（Et 3 NHCl）和一系列无水金属氯化物（MClx）为原料，合成了4种经济易得的金属基离子液体（MIL）。系统地表征了所制备的MIL的化学结构。然后分别以制得的MIL和空气中的分子氧为萃取剂和氧化剂，实现了噻吩类硫化物的萃取和催化氧化脱硫（ECODS）。系统考察了影响脱硫效果的因素，并在优化条件下实现了不同硫浓度和不同底物的油品深度脱硫。在优化条件下，二苯并噻吩（DBT）的去除率可达99.4%。不同硫化物的脱硫效果为DBT > 4，6-二甲基二苯并噻吩（4，6-DMDBT）>苯并噻吩（BT）。烯烃和芳烃共存的影响也进行了研究。此外，低成本[Et 3 NH]的使用量...
Four economic and easily prepared metal-based ionic liquids (MILs) were synthesized based on triethylamine hydrochloride (Et3NHCl) and a series of anhydrous metal chlorides (MClx). The stiochemistry of the as-prepared MILs is characterized systematically. Extraction and catalytic oxidative desulfurization (ECODS) of thiophenic sulfides is then achieved using the as-prepared MILs and molecular oxygen (O2) in air as the extractant and oxidant, respectively. The factors that could influence sulfur removal are investigated systematically, and deep desulfurization of oils with different S concentrations and substrates are achieved under optimized conditions simultaneously. Dibenzothiophene (DBT) removal reaches up to 99.4% under the optimized conditions. Sulfur removal with different sulfides decreases in the order of DBT > 4,6-dimethyldibenzothiophene (4,6-DMDBT) > benzothiophene (BT). The influence of the co-existence of alkenes and aromatics is also investigated. Moreover, the used amount of low-cost [Et3NH...