|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 固相微萃取GC-MS快速分析火场残留物中汽油成分显示文摘 火场残留物如碳灰、烧残物等通常经过样品预处理后进行分析鉴定.传统的样品预处理方法往往操作繁琐、费时、重复性差,而且需用大量有机溶剂,不利于分析人员的身体健康,对环境也会造成一定污染.…… | 高展 袁春 刘峰 郑执 | 2004 | 分析测试学报2004，23，z1： | 11 |
| 2 | 气相色谱-质谱联用仪分析火场残留物中的汽油成分显示文摘The chemical detection of gasoline traces in fire debris is a challenge requiring highly sensitive,hyphenated analytical systems.The gas chromatography-mass spectrometry is suitable for the task.In this study,GC-MS were optimized to identify gasoline in simulated fire.And it was successful to apply this method to detect the gasoline in fire debris. | 祝兴华 王新钢 彭波 | 2007 | 分析测试学报2007，26，z1： | 8 |
| 3 | Major reactive species of ambient volatile organic compounds (VOCs) and their sources in Beijing显示文摘Volatile organic compounds (VOCs) are important precursors of atmospheric chemical processes. As a whole mixture, the ambient VOCs show very strong chemical reactivity. Based on OH radical loss rates in the air, the chemical reactivity of VOCs in Beijing was calculated. The results revealed that alkenes, accounting for only about 15% in the mixing ratio of VOCs, provide nearly 75% of the reactivity of ambient VOCs and the C4 to C5 alkenes were the major reactive species among the alkenes. The study of emission characteristics of various VOCs sources indicated that these alkenes are mainly from vehicle exhaust and gasoline evaporation. The reduction of alkene species in these two sources will be effective in photochemical pollution control in Beijing. | SHAO Min FU Linlin LIU Ying LU Sihua ZHANG Yuanhang TANG Xiaoyan | 2005 | Science China Earth Sciences2005，48，z2： | 7 |
| 4 | Raman spectroscopy of diesel and gasoline engine-out soot using different laser power显示文摘We studied engine-out soot samples collected from a heavy-duty direct-injection diesel engine and port-fuel injection gasoline spark-ignition engine. The two types of soot samples were characterized using Raman spectroscopy with different laser powers. A Matlab program using least-square-method with trust-region-reflective algorithm was developed for curve fitting. A DOE(design of experiments) method was used to avoid local convergence. The method was used for two-band fitting and three-band fitting. The fitting results were used to determine the intensity ratio of D(for 'Defect' or 'Disorder') and G(for'Graphite') Raman bands. It is found that high laser power may cause oxidation of soot sample, which gives higher D/G intensity ratio. Diesel soot has consistently higher amorphous/graphitic carbon ratio, and thus higher oxidation reactivity, compared to gasoline soot, which is reflected by the higher D/G intensity ratio in Raman spectra measured under the same laser power. | Haiwen Ge Zhipeng Ye Rui He | 2019 | Journal of Environmental Sciences2019，31，5： | 4 |
| 5 | An Experimental Investigation on Low Load Combustion Stability and Cold-Firing Capacity of a Gasoline Compression Ignition Engine显示文摘Gasoline compression ignition (GCI) is one of the most promising combustion concepts to maintain low pollutant emissions and high efficiency. However, low load combustion stability and firing in cold-start operations are two major challenges for GCI combustion. Strategies including negative valve overlap (NVO), advanced injection strategies, fuel reforming, and intake preheating have been proposed in order to solve these difficulties;however, the cold start is still an obstacle. The objective of this work is to study effective methods to achieve GCI engine cold start-up. This work combines NVO, in-cylinder fuel reforming, and intake preheating to achieve quick firing under cold-start conditions and the subsequent warmup conditions. The results show that start of injection (SOI) during the intake stroke yields the best fuel economy, and injection during the compression stroke has the potential to extend the low load limit. Furthermore, SOI during the NVO period grants the ability to operate under engine conditions with cold intake air and coolant. With highly reactive products made by in-cylinder fuel reforming and fast heat accumulation in the combustion chamber, the NVO injection strategy is highly appropriate for GCI firing. An additional assisted technical method, such as intake preheating, is required to ignite the first firing cycle for a cold-start process. With the combination of NVO, in-cylinder fuel reforming, and intake preheating, the GCI engine successfully started within five combustion cycles in the experiment. After the firing process, the engine could stably operate without further intake preheating;thus, this method is appropriate for engine cold-start and warm-up. | Lei Zhou Jianxiong Hua Haiqiao Wei Yiyong Han | 2019 | Engineering2019，5，3： | 4 |
| 6 | Congratulate Academician Wanzhen LU 90th Birthday显示文摘This coming September will mark the 90th birthday of Academician Wanzhen LU,one of the best scientists in the field of analytical chemistry and petroleum chemistry both in China and around the world.Academician LU was born in Tianjin,Peoples’Republic of China on September 29,1924.Her father is a famous | Xiao-li CHU | 2014 | 光谱学与光谱分析2014，34，10： | 4 |
| 7 | Fluid Catalytic Cracking Technology for Maximum Gasoline Production显示文摘Increasing gasoline production in FCC unit can improve the utilization efficiency of petroleum resources and gain economic benefit.This paper discusses the technical principles for increasing FCC gasoline yield from the aspects of feedstock properties,operating conditions,LCO(light cycle oil)recycling,catalyst selection and reactor type,and illustrates the industrial application examples for maximizing gasoline production.The technical measures,such as optimizing the feedstock,properly increasing the catalyst activity and reaction temperature,recycling LCO or hydrotreated LCO,applying high gasoline yield catalyst,and adopting the two-zone riser reactor,are proposed to enhance the gasoline yield. | Yan Jiasong Yu Shanqing Long Jun Gong Jianhong | 2021 | China Petroleum Processing & Petrochemical Technology2021，23，1： | 3 |
| 8 | Alkylation of Isobutane and Isobutene in Acidic Polyether Ionic Liquids显示文摘The Br?nsted-acidic polyether ionic liquids(ILs)with different polymerization degrees(n value)were prepared via the reaction of tetramethylguanidine and epoxy ethane,followed by successive reactions with 1,3-propane sultone and trifluoromethanesulfonic acid(TfOH).The prepared ILs were characterized by infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy,and their thermal stability was determined by thermal gravimetry.The synthesized polyether ILs coupled with TfOH were used to catalyze the alkylation reaction of isobutane and isobutene for the preparation of alkylate gasoline.The polyether ILs could improve the substrate dissolution and promote the separation of the catalyst from the products.The ideal IL(n=94)was determined.The optimized alkylation reaction conditions covered:a VTfOH/VIL ratio of 0.35,a reaction temperature of 40℃,a reaction time of 50 min,and a stirring speed of 800 r/min.The conversion of isobutene was 92.4%and the selectivity for the C8-product was 81.6%.Under optimal conditions,the catalyst life was determined and TfOH showed improved cyclic performance in the polyether ILs.After 8 operating cycles,the catalytic activity of the catalyst showed negligible decline. | Yu Fengli Gu Yulong Liu Qichun Xie Congxia | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，3： | 2 |
| 9 | 汽油中元素硫组成变化对其定量分析的影响显示文摘The structure of elemental sulfur (S0) in naphtha and gasoline was studied basing on that a new analytical method for determination of S0 was developed using gas chromatography-mass spectrometry (GC-MS).The test showed that the structure of S0 has changed and a small quantity of S2,S6,S7 has resulted and the mass proportion of S2∶S6∶S7∶S8 was 0.13:0.05:0.04:1.00 under the analysis condition.So the change of S0 structure with temperature had no effect on its quantity analysis. | 赵惠菊 | 2007 | 分析测试学报2007，26，z1： | 2 |
| 10 | Competitive surface interactions of critical additives interacted with piston ring/cylinder liner components under lubricated running-in conditions显示文摘The running-in frictional experiments were conducted under simulated engine conditionswith actual piston rings and iron cylinder liner combinations. Elemental analyses of the wear tracksindicate that antiwear agent ZDTP is quite different from the Mg- and Ca-containing detergents inthe selectivity towards the tribosurfaces of both rings and liners. It is suggested that the tribo-chemical activity of tribosurfaces plays the role in governing the characteristic population of func-tional additive elements. | SimonC.Tung | 2001 | Science China Mathematics2001，44，S1： | 2 |
| 11 | Development of Fuel/Engine Systems—The Way Forward to Sustainable Transport显示文摘The global demand for transport energy is large, growing, and primarily met by petroleum-derived liquid fuels powering internal combustion engines (ICEs). Moreover, the demand for jet fuel and diesel is projected to grow faster than the demand for gasoline in the future, and is likely to result in low-octane gasoline components becoming more readily available. Significant initiatives with varying motivations are taking place to develop the battery electric vehicle (BEV) and the fuel cell as alternatives to ICE vehicles, and to establish fuels such as biofuels and natural gas as alternatives to conventional liquid fuels. However, each of these alternatives starts from a very low base and faces significant barriers to fast and unrestrained growth;thus, transport—and particularly commercial transport—will continue to be largely powered by ICEs running on petroleum-based liquid fuels for decades to come. Hence, the sustainability of transport in terms of affordability, energy security, and impact on greenhouse gas (GHG) emissions and air quality can only be ensured by improving ICEs. Indeed, ICEs will continue to improve while using current market fuels, through improvements in combustion, control, and after-treatment systems, assisted by partial electrification in the form of hybridization. However, there is even more scope for improvement through the development of fuel/engine systems that can additionally leverage benefits in fuels manufacture and use components that may be readily available. Gasoline compression ignition (GCI), which uses low-octane gasoline in a compression ignition engine, is one such example. GCI would enable diesel-like efficiencies while making it easier to control nitrogen oxides (NOx) and particulates at a lower cost compared with modern diesel engines. Octane on demand (OOD) also helps to ensure optimum use of available fuel anti-knock quality, and thus improves the overall efficiency of the system. | Gautam Kalghatgi | 2019 | Engineering2019，5，3： | 2 |
| 12 | Fischer-Tropsch reaction within zeolite crystals for selective formation of gasoline-ranged hydrocarbons显示文摘Product selectivity control is attractive in Fischer-Tropsch(F-T)synthesis but it is still a challenge,because the F-T products follow the Anderson-Schulz-Flory(ASF)distribution with maximized gasoline-ranged(C_(5)-C_(11))hydrocarbon selectivity at 45%.Herein,we report a strategy by optimizing the gasoline selectivity to outperform the ASF limitation.The key to this success is fixation of the metal nanoparticles within zeolite crystals(metal@zeolite),where the zeolite micropore adjusts the product selectivity.For example,the Ru@NaY exhibited the gasoline selectivity 64.3% in the F-T reaction,which is significantly higher than the ASF limitation and about 2 times of that(32.8%)over conventionally supported Ru catalyst(Ru/NaY).This investigation might offer an alternative route for the direct transformation of syngas to liquid fuels with controllable selectivities. | Chengtao Wang Wei Fang Liang Wang Feng-Shou Xiao | 2021 | Journal of Energy Chemistry2021，30，3： | 1 |
| 13 | Study on Reaction of Thiophene Compounds and Olefins for Deep Desulfurization of Gasoline显示文摘The HY,Hβ,HZSM-5,and SAPO-11 zeolites were investigated in the alkylation reaction of thiophene and olefins.As a result,some sulfur-containing impurities could be converted to higher molecular weight components with their boiling point being in the range of diesel fraction.HZSM-5 had the highest activity and selectivity of desulfurization.At the same time,extensive oligomerization of olefins was not found and coke yield was very low,which could lead to high yield of gasoline products.The main reaction mechanism verifies that the second order alkylation reaction can be carried out on the outer surface and/or pores of the catalyst.The catalytic performance of the HZSM-5 catalyst which is poisoned by 2,4-dimethylquinoline during alkylation to form larger molecules of sulfur compounds is obviously weakened due to the decrease of the acid sites on the outer surface and at the mouth of pores. | Xu Yun | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，3： | 1 |
| 14 | Source apportionment of PAHs and n-alkanes bound to PM1 collected near the Venice highway显示文摘n-Alkanes and polycyclic aromatic hydrocarbons(PAHs) bound to atmospheric particulate matter(PM_1) were investigated in a traffic site located in an urban area of Venice Province(Eastern Po Valley, Italy) during the cold season. Considering the critical situation affecting the Veneto Region concerning the atmospheric pollution and the general lack of information on PM_1 composition and emission in this area, this experimental study aims at determining the source profile, their relative contributions and the dispersion of finer particles. Four sources were identified and quantified using the Positive Matrix Factorization receptor model:(1) mixed combustions related to the residential activities,(2)agricultural biomass burning in addition to the resuspension of anthropogenic and natural debris carried by the wind,(3)gasoline and (4)diesel traffic-related combustions. The role of local atmospheric circulation was also investigated to identify the pollutant sources. | Gabrio Valotto Giancarlo Rampazzo Francesco Gonella Gianni Formenton Silvia Ficotto Giorgia Giraldo | 2017 | Journal of Environmental Sciences2017，29，4： | 1 |
| 15 | Gasoline Sensor Based on Flower-Like ZnO显示文摘<正>Flower-like ZnO was prepared through a hydrothermal process using zinc sulfate as raw material.The microstructure and morphology of the samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM).XRD results showed that the as-obtained sample could be indexed to hexagonal wurtzite ZnO.TEM results revealed that the ZnO sample presented flower-like shape.The gas sensors were prepared with the traditional sintering process and their gas sensitivities were detected.The gas sensitivity results showed that the sensors based on flower-like ZnO were very sensitive to dilute 90~# gasoline.The relatively high sensitivity and selectivity of these sensors made from flower-like ZnO demonstrated the potential for developing a new class of selective gasoline sensors. | Xu Jiaqiang Chen Yuping Li Chao Shen Jianian | 2006 | 稀有金属材料与工程2006，35，A03： | 1 |
| 16 | Application of GC-qqqMS/MS in Gasoline Grades and Regions Identification显示文摘Based on GC-qqqMS/MS,a qualitative and quantitative analysis method for identifying characteristic markers in gasoline samples was established.According to the established method,different grades(#92,#95,#98)of gasoline samples collected from different regions(southern,central,northeastern,and northwestern China)were studied and analyzed.The results show that the gasolines can be classified by the relative contents of aromatics,naphthalene series,indene and other characteristic substances.On the basis of the high sensitivity and selectivity of GC-qqqMS/MS,the experiment has identified the characteristic substances,and used the characteristic-ratios methods as well as stoichiometric tools to study the grades and regional differences of gasoline products.It is conducive to the identification and classification of ILR in public security in fire cases,and can also meet the actual handling demand. | Wang Xin Zhang Guannan Zhu Jun Wan Yifu Jiang Hong Liu Zhanfang | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，1： | 1 |
| 17 | Molecular Simulation of Competitive Adsorption on Fe(110)Between Gasoline Detergent and Deposit:I.Physical Adsorption显示文摘Using molecular dynamics simulations based on classical mechanic method, the mechanism of competitive adsorption between gasoline detergent and deposit on Fe(110) surface was investigated. The representative simulation relating to the deposit molecule and the gasoline detergent molecule with high market share were selected as the model compound. It was found that when the detergent and deposit molecules exist at the same time, the detergent molecules would compete with the deposit molecules to reduce the adsorption of the deposit on Fe(110) so as to protect the metal surface. In addition, the ESP distribution is further confirmed that the detergent molecule has higher adsorption ability than the deposit molecule with the DFT theory. The essence of competitive adsorption is further revealed in detail, which is very important for the development of new type high-efficiency detergent additives. | Li Na Long Jun Zhao Yi Tao Zhiping Dai Zhenyu | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，3： | 1 |
| 18 | Application of High Shear Agitation for Desulfurization of Gasoline Using Ionic Liquids显示文摘The high shear agitation device was first adopted for gasoline desulfurization by ionic liquids. The effect of benzylimidazol fluoborate in desulfurization of gasoline and the influence of moisture on deuslfurization rate were investigated. The experimental results showed that the ionic liquid could effectively decrease the sulfur content of gasoline and the optimal conditions were as follows: The reaction could be carried out at room temperature, a volumetric ratio between oil and the liquid of 2:1, a volumetric ratio between water and ionic liquid of 0.04:1, a rotational speed of 5 krad/s, and a reaction time of 1 minute. The desulfurization rate of gasoline reached 53.6%, and the gasoline yield was up to 97.3%. The ionic liquid could be recycled for repeated use, and the use of high shear agitation for gasoline would have good prospects. | Zhao Dishun 2 ZhangZhigang 1 Wang Jialei1 Wang Na2 Li Xiangyu 2 (1 College of Science, Hebei University of Science and Technology, Shijiazhuang 050018 2 College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018) | 2006 | China Petroleum Processing & Petrochemical Technology2006，8，4： | 1 |
| 19 | Study on Desulfurization of Gasoline by Electrochemical Oxidation and Extraction显示文摘In order to further reduce the sulfur content in gasoline, a new desulfurization process was proposed by using catalytic oxidation and extraction realized in an electrochemical fluidized reactor. The fluidized layer of loaded catalyst particles consisted of lead dioxide (PbO2) supported on activated carbon particles (PbO2/C) and the electrolyte was aqueous NaOH solution. The PbO2/C particle anodes could remarkably accelerate the electrochemical reaction rate and promote the electrochemical catalysis of sulfur compounds. The sulfur compounds were at first oxidized to sulfones or sulfoxides, which were then re- moved after extraction. The experimental results indicated that the optimal desulfurization conditions were as follows: The cell voltage was 3.2 V, the concentration of hydroxyl ions in electrolyte was 0.12 mol/L, and the feed rate was 300 mL/min. Under these conditions the concentration of sulfur in gasoline was reduced from 310 ppm to 70 ppm. Based on these experimental results, a mechanism of indirect electrochemically catalytic oxidation was proposed. | Wang Wenbo1 Wang Shujun1 Liu Hongyan2 Wang Zhenxin1 (1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249 2 Faculty of Chemical Science and Engineering of China University of Petroleum, Beijing 102249) | 2006 | China Petroleum Processing & Petrochemical Technology2006，8，4： | 1 |
| 20 | Experimental investigation of effects of bio-additives on fuel economy of the gasoline engine显示文摘The matter extracted from palm oil was considered as gasoline additive. The effect of various percentages (0.2%, 0.4% and 0.6%) of the bio-additives on fuel economy of SI engine respectively running on prime gasoline, gasoline with known compo- nents, ethanol gasoline, and methanol gasoline under typical urban operation condition 2000 r/min was investigated. The results showed that the bio-additives can remarkably improve the fuel economy of SI engine while operating on all kinds of fuel. The optimal ratio of bio-additive to gasoline depends on the fuel used and on the different engine operating conditions. Besides, the experiments of constant volume combustion bomb, analysis of in cylinder processes, the synchrotron ra- diation and high-temperature friction were conducted to probe into the mechanism of the bio-additive impact on fuel economy. It indicated that the bio-additives can increase the maximum cylinder combustion pressure, improve exhaust emissions and largely reduce the frication coefficient. | YAO ChunDe ZHANG ZhiHui XU YuanLi HUANG Yu | 2008 | Science China(Technological Sciences)2008，51，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员