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Modeling of Flash Boiling Flows in Injectors with Gasoline-Ethanol Fuel Blends
Flash Boiling Flows Injectors Gasoline-Ethanol Fuel Blends
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2014/10/24
Flash boiling may be defined as the finite-rate mechanism that governs phase change in a high temperature liquid that is depressurized below its vapor pressure. This is a transient and complicated phe...
Ozone levels drop 20 percent with switch from ethanol to gasoline
Ozone levels drop 20 percent with switch from ethanol to gasoline
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2014/5/13
Choice at the pump. When residents of São Paulo chose gasoline over ethanol to fuel their vehicles, levels of ozone actually decreased, according to a Northwestern study.
Methyl Halide to Olefins and Gasoline over Zeolites and SAPO Catalysts: A New Route of MTO and MTG（图）
methyl halide hydrocarbons zeolite SAPO-34 reaction mechanism
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2013/10/9
Rational and efficient conversion of methane to more useful higher hydrocarbons is one of the most important topics of natural gas utilization. Although methane activation and its conversion to valuab...
Air Pollutant Emission Abatement using Application of Various Ethanol-gasoline Blends in High-mileage Vehicles
Accumulated mileage passenger cars Criteria pollutant Volatile organic compound Air toxics
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2016/3/28
The possibility of using ethanol-gasoline blends as fuel for vehicles as air quality management tools has been raised. In
this study, two passenger cars with different accumulated mileage, i.e., low-...
混氢对稀燃汽油机怠速性能的影响试验（Effect of Hydrogen Enrichment on the Performance of a Lean-burn Gasoline Engine at Idle）
汽油机 氢气 稀燃 怠速
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2010/12/29
在一台安装了氢气电控喷射系统的汽油机上，通过调整喷氢脉宽，研究了氢气占进气体积分数为3%时混氢对稀燃汽油机怠速燃烧与排放性能的影响。试验结果表明，混氢后发动机指示热效率提高；火焰发展期与快速燃烧持续期缩短；过量空气系数为1.3时，平均指示有效压力的循环变动系数由原机的33.9%降低至混氢后的13.7%；稀燃条件下，进气混氢有利于改善汽油机怠速时的HC、CO与NOx排放。
汽油机HCCI燃烧过渡过程控制策略（Transient Operation Strategy of Gasoline HCCI Engine）
HCCI燃烧 过渡工况 对称性原则
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2009/12/28
利用可变气门机构使部分残余废气留在缸内，是实现汽油机HCCI燃烧的切实可行的方法，然而多气门参数的调节又给燃烧控制增加了难度。本文通过试验，研究了全可变气门机构中4个控制变量对汽油机HCCI燃烧过程的影响，并对过渡过程中发动机负荷相对于各控制变量的动态响应时间进行了比较。研究发现，实现HCCI燃烧过渡过程的快速响应，应当采用适当的控制参数的耦合策略。试验结果表明，进、排气门相位的对称性原则和气门升...
Aromatics Extraction with Sulfolane from Reformate Gasoline —Measurement of Liquid-liquid Equilibrium and Extraction Rate
Aromatic extraction Reformate gasoline Sulfolane Packed column extractor Extraction rate
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2010/9/8
Aromatics extraction was investigated using aqueous solution of sulfolane as the solvent phase and model gasoline, consisting of a benzene, toluene, xylene and hexane mixture, and reformate gasoline a...
基于神经网络的汽油HCCI发动机空燃比控制策略（Air/Fuel Ratio Control of Gasoline HCCI Engine Based on Neural Network）
汽油发动机 均质充量压缩燃烧 空燃比
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2009/8/11
均质压缩燃烧（HCCI）在控制上存在难点，其中关键是基于循环的空燃比实时控制。HCCI汽油机没有能直接表征发动机每循环进气量的参数，因此，采用动态递归神经网络（Elman网络）预测HCCI发动机每循环的进气量。通过氧传感器闭环和瞬态工况中的油膜补偿，实现对HCCI发动机的稳态及瞬态工况下空燃比的精确控制。试验表明：汽油HCCI发动机神经网络预测模型及空燃比控制策略能满足HCCI发动机实时控制的需求...
汽油/氢发动机燃烧特性试验与仿真（Experiment and Simulation on Combustion Characteristics of a Four Cylinder SI Engine Fueled with Hydrogen and Gasoline）
氢发动机 汽油机 燃烧特性 仿真
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2009/8/11
进行了当量比φ=1的汽油机和当量比分别为0.8、0.6、0.4的纯氢发动机台架试验。通过对测得的汽油机和氢发动机燃烧缸压数据进行标定，建立了较为准确的AVL Boost汽油机和氢发动机燃烧仿真模型，并进行了仿真。结果表明，氢燃料的特性使得缸内混合气的燃烧速度显著加快，燃烧持续期大幅缩短，导致缸压上升，有效热效率得到提高。当量比为0.4的稀薄工况时纯氢发动机仍可正常运行，发动机燃用氢气可改善发动机性...
Improvement of Catalysts for NOx Storage and Reduction for Gasoline-fueled Automotive Exhaust
Automotive catalyst NOx storage and reduction Lean burn engine
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2009/8/4
Catalysts for nitrogen oxide (NOx) storage and reduction oxidize nitrogen monoxide (NO) emitted from automotive lean-burn engines to nitrogen dioxide (NO2) that is then stored on doped NOx storage ma...
Analysis of Sulfur Compounds in Straight-run Naphtha and FCC Gasoline
Sulfur containing compound Petroleum naphtha FCC gasoline
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2009/8/4
Sulfur-containing compounds in straight-run naphtha and catalytic-cracked gasoline were analyzed quantitatively using gas chromatography with a sulfur chemiluminescence detector. Pretreatment of the s...
Selective Hydrodesulfurization of Catalytic Cracked Gasoline
Catalytic cracked gasoline Hydrodesulfurization Cobalt molybdenum catalyst
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2009/7/28
Hydrodesulfurization (HDS) of catalytic cracked gasoline (CCG) over Co-Mo/γ-Al2O3 catalyst was investigated to clarify the important factors for deep HDS of CCG containing 229 ppm sulfur and 30.4 vol...
Skeletal Isomerization of n-Heptane to Clean Gasoline
Skeletal isomerization Heptane Clean gasoline Solid acid catalyst
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2009/7/24
Skeletal isomerization of n-heptane to clean gasoline can be catalyzed by solid acids such as zeolites, sulfated zirconia, heteropoly compounds, and WO3/ZrO2 and their Pt or Pd-modified catalysts (bif...
On-line estimation of vapour pressure of stabilized gasoline via ANN’s
Reid Vapor Pressure quadratic basis function simulated annealing approach
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2009/3/30
On-line estimation of vapour pressure of stabilized gasoline via ANN’s 。
Gasoline, diesel production beats 5-year highs at California refineries
Gasoline diesel Energy
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2006/12/22
December 20, 2006，California refineries posted the highest December production numbers in over five years for in-state gasoline and diesel fuel, according to the Weekly Fuels Watch Report issued today...