燃料化学学报最新文献

{"title":"Effect of metal promoters on catalytic performance of Co/AC for higher alcohols synthesis from syngas","authors":"GUO Lei ,&nbsp;LIU Pei-gong ,&nbsp;GONG Kun ,&nbsp;QI Xing-zhen ,&nbsp;LIN Tie-jun","doi":"10.1016/S1872-5813(23)60368-8","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60368-8","url":null,"abstract":"<div><p>Shifting products of Fischer-Tropsch Synthesis (FTS) from paraffins to value-added higher alcohols receives great attention but remains great challenge. Herein, metal oxides of Mn, Zn, La and Zr are investigated as promoters to tune the activity and product distributions of Co/AC catalyst for syngas conversion. It is found that these promoters show different promotion effect on CO dissociation rate, the formation of Co₂C phase and the alcohols selectivity. The formed Co₂C/Co⁰ constitutes the dual active site for higher alcohols synthesis. The strongest CO dissociation rate is observed for Zn-promoted Co/AC catalyst, resulting in the highest activity and space-time yield (STY) of alcohols. The Mn promoter is most conducive to the formation of Co₂C, but slightly decreases the activity. The similar CO dissociation rate and CO conversion are obtained over both Zr- and La-promoted Co/AC catalysts, but the Zr-promoted Co/AC catalyst exhibits the highest alcohols selectivity due to the function balance between CO non-dissociative insertion and CO dissociation.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 11","pages":"Pages 1663-1672"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138403856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on aromatization of\u0000C6+ n-alkanes","authors":"ZHOU Qiu-ming ,&nbsp;WANG Sen ,&nbsp;QIN Zhang-feng ,&nbsp;DONG Mei ,&nbsp;WANG Jian-guo ,&nbsp;FAN Wei-bin","doi":"10.1016/S1872-5813(23)60357-3","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60357-3","url":null,"abstract":"<div><p>Conversion of saturated straight-chain alkanes generated in the deep desulfurization process of fluid catalytic cracking (FCC) gasoline and the coal-to-oil processes into aromatics via alkane aromatization is an important non-petroleum route for the preparation of aromatics that effectively improves the quality of oil. The aromatization technology of C₂–C₅ light hydrocarbons is relatively mature and has been used in industry. However, for the aromatization of\u0000<span><math><msubsup><mrow><mtext>C</mtext></mrow><mrow><mtext>6</mtext></mrow><mrow><mtext>+</mtext></mrow></msubsup></math></span> <em>n</em>-alkanes, the aromatics yield is still very low due to the complex reaction process and the competition of various elemental reactions. In addition, the catalysts usually suffer from rapid deactivation. In this work, we summarize the recent advances in the aromatization of\u0000<span><math><msubsup><mrow><mtext>C</mtext></mrow><mrow><mtext>6</mtext></mrow><mrow><mtext>+</mtext></mrow></msubsup></math></span> <em>n</em>-alkanes. The reaction mechanism of aromatization of\u0000<span><math><msubsup><mrow><mtext>C</mtext></mrow><mrow><mtext>6</mtext></mrow><mrow><mtext>+</mtext></mrow></msubsup></math></span> alkanes and the effects of the dispersion of metal sites, electronic state, and acidity, morphology and pore structure of the support on the catalytic performance are discussed in detail.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 11","pages":"Pages 1529-1539"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138430445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyrolysis magnetization of low-rank coal and distribution characteristics of sulfur and heavy metals in char products","authors":"Mo CHU ,&nbsp;Min GAO ,&nbsp;Yan-bo YANG ,&nbsp;Jia-bao HU ,&nbsp;Fei-yong LV ,&nbsp;Hao-yang WANG ,&nbsp;Liang-liang WANG","doi":"10.1016/S1872-5813(23)60359-7","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60359-7","url":null,"abstract":"<div><p>The distribution of sulfur and heavy metals in char of Gansu lignite and Shanxi subbituminous coal was studied by means of pyrolysis and magnetic separation at different pyrolysis temperatures. The contents of sulfur and heavy metal elements in char were analyzed and determined by ICP-OES and ICP-MS, and the mineral composition and apparent morphology of char were characterized by XRD and SEM-EDS. The results show that the highest desulfurization rates of Gansu lignite and Shanxi Subbituminous coal can reach 52.37% and 17.54% respectively under optimal conditions. This is related to the phase transition behavior of pyrite during pyrolysis. The desulphurization rate of Shanxi subbituminous char is lower than that of Gansu lignite char mainly because the occurrence and inclusion of associated minerals and the organic matter influence the transformation of pyrite during pyrolysis. Ni and Cr have a strong affinity with Fe−S minerals, which are enriched into magnetic char with sulfur. At 800 °C, Cr content in magnetic char of Gansu coal and Shanxi coal is 8698.25 and 32327.47 μg/g higher than that in non-magnetic char, respectively. The pyrolytic magnetization of low-rank coal and the distribution of sulfur and heavy metals in its char products provide data support and a new idea for removal of sulfur and heavy metals from coal.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1359-1372"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wet removal of elemental mercury by acid-assisted electrochemical oxidation method","authors":"Qian-qian ZHANG,&nbsp;An-chao ZHANG,&nbsp;Fan-mao MENG,&nbsp;Yan-wen LIU,&nbsp;Zhi-jun SUN,&nbsp;Hai-xia LI,&nbsp;Hai-kun ZHENG","doi":"10.1016/S1872-5813(23)60371-8","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60371-8","url":null,"abstract":"<div><p>As a global pollutant, mercury emission is increasingly restricted in recent years. It is urgent to explore a new and efficient mercury removal technology for coal-fired power plants. A new acid-assisted electrochemical oxidation (AEO) technique for mercury removal was proposed using platinum plate as cathode and fluorine-doped tin dioxide (FTO) glass as anode. The effects of acid type, acid concentration, applied direct current (DC) voltage, electrolyte type, SO₂, NO and O₂ on the Hg⁰ removal efficiency were carried out. The results indicated that the mercury removal efficiency increased with the increase of DC voltage and nitric acid concentration. When the concentration of nitric acid increased to 0.15 mol/L, the mercury removal efficiency remained unchanged. SO₂ and NO inhibited the removal of Hg⁰ in AEO system, but the inhibition was reversible. Compared with the mercury removal efficiency under single experimental conditions, the mercury removal efficiency of electrochemical oxidation can reach 96% under the experimental conditions of 0.1 mol/L nitric acid and 4V DC voltage, suggesting that the synergistic effect of nitric acid and DC voltage plays a key role. According to the experimental results, the mechanism of Hg⁰ removal in AEO system was analyzed. At the anode, Hg⁰ was oxidized by hydroxyl radical (^.OH) generated by the oxidation reaction on the anode surface. At the cathode, dissolved oxygen or O₂ adsorbed on the surface of Pt is reduced to form anionic superoxide radicals (^.O⁻₂). Moreover, parts of ^.O⁻₂ would produce ^.OH with the aid of electron at acidic condition. Free radicals capture experiments showed that ^.O⁻₂ and ^.OH were the main active substances for the removal of Hg⁰ by acid-assisted electrochemical method. The research is helpful for the development of effective electrochemical techniques for industrial mercury removal and recycling of industrial acid waste.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1496-1505"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2-assisted oxidative dehydrogenation of ethane to ethylene over the ZnO-ZrO2 catalyst","authors":"Duo-hua LIAO,&nbsp;Liang YANG,&nbsp;Geng-zhe SONG,&nbsp;Xue-dong MA,&nbsp;Shuang LI","doi":"10.1016/S1872-5813(23)60360-3","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60360-3","url":null,"abstract":"<div><p>The ZnO-ZrO₂ catalyst was prepared by the deposition-precipitation method using ZrO₂ as the carrier obtained from calcining commercial zirconium hydroxide (Zr(OH)₄). And the catalytic performance was evaluated at 873 K in CO₂-assisted ethane oxidative dehydrogenation reaction (CO₂-ODHE). The physical-chemical properties and morphology were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Raman spectra, High-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectra (XPS), CO₂ temperature-programmed desorption (CO₂-TPD). The results show that ZnO were doped into the surface lattice of ZrO₂ on the 5%ZnO-ZrO₂ catalyst, generating highly dispersed ZnO species and oxygen-deficient regions on catalyst surface. 5%ZnO-ZrO₂ catalyst could selectively breaking C–H bond instead of C–C bond, delivering excellent catalytic performance. 210 μmol/(g_cat·min) of C₂H₄ formation rate could compare favorably with the data reported on noble metal and transition metal carbides. Additionally, the possible mechanism is discussed.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1421-1431"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphology study of nickel and vanadium in asphaltenes via hydropyrolysis","authors":"Fang ZHENG ,&nbsp;Yan-bin WANG ,&nbsp;Da HUO ,&nbsp;Chun-yan WANG ,&nbsp;Qing CAO ,&nbsp;Jing HE ,&nbsp;Quan SHI","doi":"10.1016/S1872-5813(21)60333-0","DOIUrl":"https://doi.org/10.1016/S1872-5813(21)60333-0","url":null,"abstract":"<div><p>The morphology of nickel and vanadium compounds in the asphaltenes were investigated via hydropyrolysis with the help of inductively coupled plasma mass spectrometer (ICP-MS), ultraviolet-visible (UV-Vis), high-temperature gas chromatography atomic emission detection (HT GC-AED), and positive-ion electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (+ESI FT-ICR MS). The results showed that the toluene soluble yields of products decreased from 64% to 19% as the hydropyrolysis temperature increased from 330 to 410 °C, while the abundance of nickel and vanadium compounds detected by GC-AED increased significantly. The molecular composition distribution of nickel and vanadyl porphyrins showed rhythmic changes with different temperatures in the hydropyrolysis of asphaltenes.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1383-1388"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on effect of furfural residue addition on fusion characteristics of gasification coal ash","authors":"Xiao-tong MA ,&nbsp;Zhi-gang WANG ,&nbsp;Hao LU ,&nbsp;Shu-juan ZHUANG ,&nbsp;Yan-xia WANG ,&nbsp;Wei LIU ,&nbsp;Jiang-shan ZHAO ,&nbsp;Ling-xue KONG","doi":"10.1016/S1872-5813(23)60355-X","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60355-X","url":null,"abstract":"<div><p>The co-gasification of furfural residue with coal is a feasible way to realize its clean and efficient utilization, but there is a high content of alkaline components in the furfural residue ash. Therefore, the effect of furfural residue addition on the fusion temperature of gasification coal ash was investigated, in which a typical furfural residue and two gasification coals with different ratios of silicon to aluminum (Si/Al) were selected. X-ray diffraction instrument (XRD) was used to measure the mineral evolution of co-gasification ash at different temperatures. The phase change in equilibrium state was calculated by the software FactSage. The results show that with the increase in furfural residue addition ratio, the fusion temperatures of both gasification coal ashes first increase and then decrease, while the increase trend of fusion temperatures for the coal with a high Si/Al ratio is more significant. When the furfural residue is added, the resulting high melting point mineral of gasification slag is changed from anorthite (CaAl₂Si₂O₈) to leucite (KAlSi₂O₆) that is still present as a solid phase at 1300 °C, resulting in an increase of AFTs. The coal ash with more amount of SiO₂ can react with K₂O to produce more leucite (KAlSi₂O₆) with a higher fusion point, thus causing the ash fusion temperatures to rise. However, as the ratio of furfural residue addition continues to increase, the ash fusion temperatures decrease, which is attributed to the formation of kaliophilite (KAlSiO₄) with a low fusion point that is generated in the presence of higher content of K₂O.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1373-1382"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electronic modulation and synergistic effect on Fe-doped NiSe@NiS composites to improve oxygen evolution performance","authors":"Xue-li YIN,&nbsp;Xiao-ping DAI","doi":"10.1016/S1872-5813(23)60374-3","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60374-3","url":null,"abstract":"<div><p>In this paper, Fe-doped nickel selenide and nickel sulfide composites was in-situ grown on nickel foam (NF) to prepare Fe-NiSe@NiS/NF by solvothermal method. Benefit from the optimized electron structure by Fe doping, the synergistic effect of NiSe@NiS and faster electron transfer, Fe-NiSe@NiS/NF exhibited excellent OER activity with the overpotential of 330 mV at 150 mA/cm² in 1 mol/L KOH solution. The voltage barely changed after 40 h of test.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1470-1477"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controllable preparation of wrapped Fe2O3@rGO composites and their lithium ion storage performance","authors":"Hui QI ,&nbsp;Rui WANG ,&nbsp;Wen-jing WANG ,&nbsp;Hong-fei HAN","doi":"10.1016/S1872-5813(23)60380-9","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60380-9","url":null,"abstract":"<div><p>In this paper, reduced graphene oxides wrapped hollow Fe₂O₃ spheres (Fe₂O₃@rGO) were successfully prepared by solvothermal method. Results show that plenty of Fe-O-C bonds between reduced graphene oxides and Fe₂O₃ significantly improved electron transfer rate of the composite anodes, and confinement effect of reduced graphene oxides slowed the pulverization rate of Fe₂O₃ during charge/discharge process. As expected, wrapped structured Fe₂O₃@rGO anode exhibited high rate capability of 514 mA·h/g at high current of 5.0 A/g and durable cycling life over 500 cycles with a capacity of 987 mA·h/g under 0.5 A/g with a capacity retention of 81.1%. This work provides an effective strategy for the preparation of high-rate and long-life graphene composite anode materials.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1478-1486"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Support effects on Ru-based catalysts for Fischer-Tropsch synthesis to olefins","authors":"Tai-zhen YAO ,&nbsp;Yun-lei AN ,&nbsp;Hai-ling YU ,&nbsp;Tie-jun LIN ,&nbsp;Fei YU ,&nbsp;Liang-shu ZHONG","doi":"10.1016/S1872-5813(23)60351-2","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60351-2","url":null,"abstract":"<div><p>The effects of supports (CeO₂, ZrO₂, MnO₂, SiO₂ and active carbon) on the structure and catalytic performance of Ru-based catalysts for Fischer-Tropsch synthesis to olefins (FTO) were investigated. It was found that the intrinsic characteristics of supports and the metal-support interaction (MSI) would greatly influence the catalytic performance. The catalytic activity followed the order: Ru/SiO₂ &gt; Ru/ZrO₂ &gt; Ru/MnO₂ &gt; Ru/AC &gt; Ru/CeO₂. As far as olefins selectivity was concerned, both Ru/SiO₂ and Ru/MnO₂ possessed high selectivity to olefins (&gt;70%), while olefins selectivity for Ru/ZrO₂ was the lowest (29.9%). Ru/SiO₂ exhibited the appropriate Ru nanoparticles size (~ 5 nm) with highest activity due to the relatively low MSI between Ru and SiO₂. Both Ru/AC and Ru/MnO₂ presented low CO conversion with Ru nanoparticles size of 1–3 nm. Stronger olefins secondary hydrogenation capacity led to the significantly decreased olefins selectivity for Ru/AC and Ru/ZrO₂. In addition, partial Ru species might be encapsulated by reducible CeO₂ layer for Ru/CeO₂ due to strong MSI effects, leading to the lowest activity.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 10","pages":"Pages 1400-1410"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}