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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019最新文献

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Structural transformations in air heated Al-Cr powder compacts 空气加热铝铬粉末压坯的结构转变
G. A. Pribytkov, V. Korzhova, E. Korosteleva
In this study, structural changes in aluminum-chromium powder compacts were considered during exposure in the air at 500 °C. The samples were obtained by pressing the mixture of aluminum and chromium powders. The studies were carried out with using the X-ray diffraction and the metallographic analysis and by measuring the weight gain of the samples. It was established that the value of the specific mass gain has a complex and ambiguous dependence on the initial porosity of Al-Cr compacts due to phase transformations in powder mixtures. At short-term (up to 30 minutes) 500 °C air heating of the porous compacts significant oxidation does not occur. However, at the long-term exposure at 500 °C the reaction diffusion between aluminum and chromium occurs resulting in Al13Cr2 intermetallic formation and compacts swelling.In this study, structural changes in aluminum-chromium powder compacts were considered during exposure in the air at 500 °C. The samples were obtained by pressing the mixture of aluminum and chromium powders. The studies were carried out with using the X-ray diffraction and the metallographic analysis and by measuring the weight gain of the samples. It was established that the value of the specific mass gain has a complex and ambiguous dependence on the initial porosity of Al-Cr compacts due to phase transformations in powder mixtures. At short-term (up to 30 minutes) 500 °C air heating of the porous compacts significant oxidation does not occur. However, at the long-term exposure at 500 °C the reaction diffusion between aluminum and chromium occurs resulting in Al13Cr2 intermetallic formation and compacts swelling.
在本研究中,考虑了铝铬粉末在500°C空气中暴露时的结构变化。样品是由铝和铬粉的混合物压制而成的。利用x射线衍射和金相分析以及测量样品的增重进行了研究。结果表明,由于粉末混合物中的相变,Al-Cr压坯的初始孔隙率与比质量增益的关系是复杂而模糊的。在短期内(最多30分钟)500°C的空气加热多孔压坯不会发生明显的氧化。然而,在500℃下长期暴露,铝和铬之间发生反应扩散,导致Al13Cr2金属间形成和致密物膨胀。在本研究中,考虑了铝铬粉末在500°C空气中暴露时的结构变化。样品是由铝和铬粉的混合物压制而成的。利用x射线衍射和金相分析以及测量样品的增重进行了研究。结果表明,由于粉末混合物中的相变,Al-Cr压坯的初始孔隙率与比质量增益的关系是复杂而模糊的。在短期内(最多30分钟)500°C的空气加热多孔压坯不会发生明显的氧化。然而,在500℃下长期暴露,铝和铬之间发生反应扩散,导致Al13Cr2金属间形成和致密物膨胀。
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引用次数: 1
Deformed microstructure of ferritic-martensitic steel EK-181 铁素体-马氏体钢EK-181的变形组织
K. Almaeva, N. Polekhina, I. Litovchenko
The mechanical properties of heat-resistant low-activated 12% Cr ferritic-martensitic steel EK-181 are investigated during tensile tests at T = 20 °C and in the temperature range close to the operating temperatures of the nuclear reactor (T = 650 and 720 °C) after traditional heat (THT) and high-temperature thermomechanical treatments (HTMT). It is shown that the strength properties of steel after HTMT exceed the corresponding values after THT. The features of the steel microstructure near the neck of the samples deformed by tension at these temperatures using two processing methods are studied. It is shown that plastic deformation at T = 20 °C leads to the curvature and fragmentation of martensitic lamellae and the formation of new low-angle boundaries. Deformation near the operating temperature range contributes to the development of dynamic polygonization, recrystallization and increase in density and size of the precipitates. After HTMT these processes are less intensive compared to the structural state after THT. This is due to the higher density of nanosized precipitates of V(C, N) and the increased dislocation density after HTMT.The mechanical properties of heat-resistant low-activated 12% Cr ferritic-martensitic steel EK-181 are investigated during tensile tests at T = 20 °C and in the temperature range close to the operating temperatures of the nuclear reactor (T = 650 and 720 °C) after traditional heat (THT) and high-temperature thermomechanical treatments (HTMT). It is shown that the strength properties of steel after HTMT exceed the corresponding values after THT. The features of the steel microstructure near the neck of the samples deformed by tension at these temperatures using two processing methods are studied. It is shown that plastic deformation at T = 20 °C leads to the curvature and fragmentation of martensitic lamellae and the formation of new low-angle boundaries. Deformation near the operating temperature range contributes to the development of dynamic polygonization, recrystallization and increase in density and size of the precipitates. After HTMT these processes are less intensive compared to the structural sta...
研究了耐热低活化12% Cr铁素体-马氏体钢EK-181在T = 20℃和接近核反应堆工作温度(T = 650和720℃)下,经过传统热处理(THT)和高温热处理(HTMT)的力学性能。结果表明,高温热处理后钢的强度性能超过高温热处理后的相应数值。研究了两种热处理方法在上述温度下拉伸变形试样颈部附近的钢组织特征。结果表明:在温度为20℃时,塑性变形导致马氏体片层的弯曲和碎裂,形成新的低角晶界;在工作温度范围附近的变形促进了动态多角化、再结晶的发展,使析出相的密度和尺寸增大。与THT后的结构状态相比,html后的这些过程不那么密集。这是由于HTMT后V(C, N)的纳米析出相密度增大,位错密度增大所致。研究了耐热低活化12% Cr铁素体-马氏体钢EK-181在T = 20℃和接近核反应堆工作温度(T = 650和720℃)下,经过传统热处理(THT)和高温热处理(HTMT)的力学性能。结果表明,高温热处理后钢的强度性能超过高温热处理后的相应数值。研究了两种热处理方法在上述温度下拉伸变形试样颈部附近的钢组织特征。结果表明:在温度为20℃时,塑性变形导致马氏体片层的弯曲和碎裂,形成新的低角晶界;在工作温度范围附近的变形促进了动态多角化、再结晶的发展,使析出相的密度和尺寸增大。在html之后,这些过程与结构状态相比不那么密集。
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引用次数: 1
Cutting of aluminum alloys with a Q-switched repetitively pulsed CO2 laser under conditions of intense material evaporation 用调q重复脉冲CO2激光在材料强烈蒸发条件下切割铝合金
V. Shulyatyev, A. Orishich
The results of an experimental study of laser cutting of aluminum-lithium alloys using a repetitively pulsed CO2 laser with Q-switching under conditions of intense material evaporation are presented. The dependence of cut quality on the assisted gas pressure is determined. It is shown that a high-quality cut with a sheet thickness of 1.5 mm can be obtained at a gas pressure of 0.5–0.6 bar, which is significantly less compared to cutting with a continuous laser power. This makes it possible to reduce the assisted gas consumption. The dependence of cut surface roughness on the pulse repetition rate is measured.The results of an experimental study of laser cutting of aluminum-lithium alloys using a repetitively pulsed CO2 laser with Q-switching under conditions of intense material evaporation are presented. The dependence of cut quality on the assisted gas pressure is determined. It is shown that a high-quality cut with a sheet thickness of 1.5 mm can be obtained at a gas pressure of 0.5–0.6 bar, which is significantly less compared to cutting with a continuous laser power. This makes it possible to reduce the assisted gas consumption. The dependence of cut surface roughness on the pulse repetition rate is measured.
本文介绍了在材料强烈蒸发条件下,用q开关重复脉冲CO2激光切割铝锂合金的实验研究结果。确定了切割质量对辅助气体压力的依赖关系。结果表明,在0.5 ~ 0.6 bar的气体压力下,可以获得板材厚度为1.5 mm的高质量切割,与连续激光功率切割相比,切割效果明显降低。这使得减少辅助气体消耗成为可能。测量了切割表面粗糙度与脉冲重复率的关系。本文介绍了在材料强烈蒸发条件下,用q开关重复脉冲CO2激光切割铝锂合金的实验研究结果。确定了切割质量对辅助气体压力的依赖关系。结果表明,在0.5 ~ 0.6 bar的气体压力下,可以获得板材厚度为1.5 mm的高质量切割,与连续激光功率切割相比,切割效果明显降低。这使得减少辅助气体消耗成为可能。测量了切割表面粗糙度与脉冲重复率的关系。
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引用次数: 2
Anneal-behavior of deformation microstructure and microhardness of high-Mn austenitic steels processed by high-pressure torsion 高压扭转高锰奥氏体钢变形组织和显微硬度的退火行为
G. Maier
The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.
研究了不同层错能的Fe-13Mn-1.3C、Fe-13Mn-2.7Al-1.3C和Fe-28Mn-2.7Al-1.3C (wt %)钢在高压扭转(HPT)后退火温度下的组织演变规律。Fe-28Mn-2.7Al-1.3C钢的hpt辅助组织具有较高的孪晶界分数,与其他两种钢相比,在变形后退火过程中具有最高的稳定性(高达600℃)。在700℃退火过程中,所有钢都发生再结晶,形成细晶奥氏体组织,这与钢的成分和相变倾向无关。700℃退火有利于Fe-13Mn-1.3C、Fe-28Mn-2.7Al-1.3C钢的非均匀组织的形成,晶粒以单晶生长为主,与Fe-13Mn-2.7Al-1.3C钢相比,退火过程中的相变更加稳定。研究了不同层错能的Fe-13Mn-1.3C、Fe-13Mn-2.7Al-1.3C和Fe-28Mn-2.7Al-1.3C (wt %)钢在高压扭转(HPT)后退火温度下的组织演变规律。Fe-28Mn-2.7Al-1.3C钢的hpt辅助组织具有较高的孪晶界分数,与其他两种钢相比,在变形后退火过程中具有最高的稳定性(高达600℃)。在700℃退火过程中,所有钢都发生再结晶,形成细晶奥氏体组织,这与钢的成分和相变倾向无关。700℃退火有利于Fe-13Mn-1.3C、Fe-28Mn-2.7Al-1.3C钢的非均匀组织的形成,晶粒以单晶生长为主,与Fe-13Mn-2.7Al-1.3C钢相比,退火过程中的相变更加稳定。
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引用次数: 0
MD study of scratching-induced deformation in nanosized polycrystalline titanium with coherent and incoherent twins boundaries 具有相干和非相干孪晶界的纳米多晶钛划伤致变形的MD研究
A. Dmitriev, A. Nikonov, A. Shugurov
The article describes the results of molecular dynamics modeling of scratch induced plastic deformation in a nanosized titanium polycrystalline. Coherent and incoherent twins are in the focus of present research. It is established that the development of plastic deformation is determined by the twin boundary type. In the case of incoherent twin boundary there is a nanofragmentation of the material and the curvature of the boundary plane. For the crystallite with coherent twin boundary, the plastic deformation is possible due to the reorientation of the twin lattice into the matrix lattice. This is due to the perfect similarity of two lattices and the lower specific energy of such a defect. These results make it possible to understand better the features of the development of plastic deformation in the surface layers of materials with hcp structure.The article describes the results of molecular dynamics modeling of scratch induced plastic deformation in a nanosized titanium polycrystalline. Coherent and incoherent twins are in the focus of present research. It is established that the development of plastic deformation is determined by the twin boundary type. In the case of incoherent twin boundary there is a nanofragmentation of the material and the curvature of the boundary plane. For the crystallite with coherent twin boundary, the plastic deformation is possible due to the reorientation of the twin lattice into the matrix lattice. This is due to the perfect similarity of two lattices and the lower specific energy of such a defect. These results make it possible to understand better the features of the development of plastic deformation in the surface layers of materials with hcp structure.
本文描述了纳米钛多晶划痕诱导塑性变形的分子动力学建模结果。相干和非相干双胞胎是目前研究的重点。确定了塑性变形的发展是由孪晶边界类型决定的。在非相干孪晶界面的情况下,存在材料的纳米碎裂和晶界面的曲率。对于具有相干孪晶边界的晶体,由于孪晶晶格向基体晶格的重新取向,塑性变形是可能的。这是由于两个晶格的完美相似性和这种缺陷的较低的比能。这些结果可以更好地理解具有hcp结构的材料表层塑性变形的发展特征。本文描述了纳米钛多晶划痕诱导塑性变形的分子动力学建模结果。相干和非相干双胞胎是目前研究的重点。确定了塑性变形的发展是由孪晶边界类型决定的。在非相干孪晶界面的情况下,存在材料的纳米碎裂和晶界面的曲率。对于具有相干孪晶边界的晶体,由于孪晶晶格向基体晶格的重新取向,塑性变形是可能的。这是由于两个晶格的完美相似性和这种缺陷的较低的比能。这些结果可以更好地理解具有hcp结构的材料表层塑性变形的发展特征。
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引用次数: 0
Hurst exponent-based analysis of the behavior of filled polymers in aggressive media 侵蚀介质中填充聚合物行为的Hurst指数分析
N. Minakova, A. V. Mansurov
The paper studies the potential applicability of Hurst exponent for estimation of dynamics of volume electrical resistance of carbon black filled rubbers operating in aggressive media, such as air, transformer oil, and toluene. The proposed approach for analysis of filled polymers’ behavior is confirmed experimentally to be successful. It is concluded that Hurst exponent can be used to analyze time series trends of volume electrical resistance changes caused by aggressive media mentioned earlier. Peculiar features of Hurst exponent are shown for various concentrations of an electrically conductive filler, different environments, and time series length.
本文研究了用赫斯特指数估计炭黑填充橡胶在空气、变压器油和甲苯等腐蚀性介质中的体积电阻动态的潜在适用性。所提出的填充聚合物行为分析方法在实验上是成功的。结论:赫斯特指数可用于分析上述侵蚀介质引起的体积电阻变化的时间序列趋势。赫斯特指数的特殊特征显示了不同浓度的导电填料,不同的环境,和时间序列长度。
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引用次数: 0
Kinetics of structural transformation in an adhesive layer during creation of 3D objects in LOM technology 在LOM技术中创建三维物体时,粘接层结构转变的动力学
E. Saifullin, A. Knyazeva
Experimental studies are aimed at exploring the possibilities of new materials using for LOM technology. This article is devoted to numerical simulation of structural transformation occurring in an adhesive layer of three-layer object. A mathematical model describing the physical process is formulated. Numerical implementation of the model shows the effect of technological parameters on structural transformation in the sample.Experimental studies are aimed at exploring the possibilities of new materials using for LOM technology. This article is devoted to numerical simulation of structural transformation occurring in an adhesive layer of three-layer object. A mathematical model describing the physical process is formulated. Numerical implementation of the model shows the effect of technological parameters on structural transformation in the sample.
实验研究旨在探索用于LOM技术的新材料的可能性。本文对三层物体粘接层发生的结构变化进行了数值模拟。建立了描述物理过程的数学模型。模型的数值实现显示了工艺参数对试样结构变化的影响。实验研究旨在探索用于LOM技术的新材料的可能性。本文对三层物体粘接层发生的结构变化进行了数值模拟。建立了描述物理过程的数学模型。模型的数值实现显示了工艺参数对试样结构变化的影响。
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引用次数: 0
Active bio contact mechanics: Concepts of active control of wear and growth of the cartilage in natural joints 主动生物接触力学:主动控制自然关节软骨磨损和生长的概念
V. Popov
The modern practice of treating patients with impaired motor functions often consists in replacing the natural joints with artificial ones. Currently, more than 1.5 million hip joint replacements are performed annually in the world, with a tendency to grow. Even if the replacement procedure is successful, replacement is often ineffective in the medium or long term, due to various complications. The paper puts forward ideas and discusses how to mechanically load the joint to promote the development of regenerative effects, while minimizing the influence of factors determining wear.The modern practice of treating patients with impaired motor functions often consists in replacing the natural joints with artificial ones. Currently, more than 1.5 million hip joint replacements are performed annually in the world, with a tendency to grow. Even if the replacement procedure is successful, replacement is often ineffective in the medium or long term, due to various complications. The paper puts forward ideas and discusses how to mechanically load the joint to promote the development of regenerative effects, while minimizing the influence of factors determining wear.
现代治疗运动功能受损病人的方法通常是用人工关节代替天然关节。目前,全世界每年进行的髋关节置换术超过150万例,并呈增长趋势。即使置换手术成功,由于各种并发症,置换往往在中期或长期内无效。本文提出了一些想法,并讨论了如何对关节进行机械加载以促进再生效应的发展,同时最大限度地减少决定磨损因素的影响。现代治疗运动功能受损病人的方法通常是用人工关节代替天然关节。目前,全世界每年进行的髋关节置换术超过150万例,并呈增长趋势。即使置换手术成功,由于各种并发症,置换往往在中期或长期内无效。本文提出了一些想法,并讨论了如何对关节进行机械加载以促进再生效应的发展,同时最大限度地减少决定磨损因素的影响。
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引用次数: 4
Role of the mesoscopic rotation modes of deformation in formation of macroscopic stress–strain curves 细观旋转变形模式在宏观应力-应变曲线形成中的作用
I. Smolin, P. Makarov, R. Bakeev
In the framework of the asymmetric theory of the elastic-plastic Cosserat continuum in a two-dimensional formulation for plane strain, the simulation of inelastic localized deformation was performed for homogeneous samples and the mesoscale volumes of the polycrystalline material. It is assumed that the development of rotational deformation modes in loaded materials is associated with the development of localized plastic deformation in them and the formation of curvatures of the crystal lattice in the material at the micro and nanoscales. For this reason, the parameters of the Cosserat model are considered as functions of inelastic strain for each local volume of the medium. It is shown that the couple stress forming at the mesoscale makes a significant contribution to the hardening of macroscopic stress-strain curves. The simulation results show that if the rotation modes of deformation are blocked in the loaded material, the accommodation capacity of the material decreases, the local and macroscopic degree of inelastic strain sharply increases and fracture patterns are formed much faster. Conversely, the creation of meso- and nanosized substructures with a high curvature of the crystal lattice in materials contributes to the activation of rotational deformation modes, reducing the degree of localized strain and relaxation of dangerous stress concentrators.In the framework of the asymmetric theory of the elastic-plastic Cosserat continuum in a two-dimensional formulation for plane strain, the simulation of inelastic localized deformation was performed for homogeneous samples and the mesoscale volumes of the polycrystalline material. It is assumed that the development of rotational deformation modes in loaded materials is associated with the development of localized plastic deformation in them and the formation of curvatures of the crystal lattice in the material at the micro and nanoscales. For this reason, the parameters of the Cosserat model are considered as functions of inelastic strain for each local volume of the medium. It is shown that the couple stress forming at the mesoscale makes a significant contribution to the hardening of macroscopic stress-strain curves. The simulation results show that if the rotation modes of deformation are blocked in the loaded material, the accommodation capacity of the material decreases, the local and macroscopic deg...
在二维平面应变的弹塑性Cosserat连续体的非对称理论框架下,对均匀样品和多晶材料的中尺度体积进行了非弹性局部变形的模拟。假设载荷下材料旋转变形模式的发展与材料局部塑性变形的发展和材料中晶格曲率的形成有关。因此,Cosserat模型的参数被认为是介质各局部体积的非弹性应变的函数。结果表明,中观尺度上的耦合应力形成对宏观应力-应变曲线的硬化起着重要作用。模拟结果表明,当变形的旋转模式在加载材料中受阻时,材料的容纳能力降低,局部和宏观的非弹性应变程度急剧增加,断裂模式形成得更快。相反,在材料中产生具有高晶格曲率的介观和纳米尺度的子结构有助于激活旋转变形模式,减少局部应变和危险应力集中物的松弛程度。在二维平面应变的弹塑性Cosserat连续体的非对称理论框架下,对均匀样品和多晶材料的中尺度体积进行了非弹性局部变形的模拟。假设载荷下材料旋转变形模式的发展与材料局部塑性变形的发展和材料中晶格曲率的形成有关。因此,Cosserat模型的参数被认为是介质各局部体积的非弹性应变的函数。结果表明,中观尺度上的耦合应力形成对宏观应力-应变曲线的硬化起着重要作用。模拟结果表明,如果变形的旋转模式在加载材料中受阻,则材料的容纳能力降低,局部和宏观的变形程度增加。
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引用次数: 0
Composition of products of cracking of oxidized sulfur-containing vacuum gasoil components 氧化含硫真空汽油组分裂解产物的组成
Yulia A. Yovik, E. B. Krivtsov, A. Golovko
The degradation of feedstock entering the refinery, leads to the need to increase the depth of oil refining. One of the promising methods for the processing of heavy hydrocarbon feedstocks is the combination of oxidation and subsequent cracking, which makes it possible to effectively remove polyaromatic sulfur compounds and to obtain additional quantities of distillate fractions. To develop effective methods of cracking of the products of oxidation of sulfur compounds, it is necessary to establish their thermal stability and the dependence of changes in the composition and properties of products on the conditions of oxidation and subsequent cracking. Vacuum gas oil was oxidized with a mixture of hydrogen peroxide with formic acid. The oxidized gas oil was cracked or divided into polar and non-polar components, with subsequent cracking. The composition of sulfur compounds of the cracking products was analyzed by chromatographic methods. Selective cracking of polar and non-polar components allows reducing gas formation and increasing the yield in distillate fractions. Depending on the conditions, reactions of cracking of oxidized sulfur compounds can proceed with the formation of a wide range of thiophene derivatives. Further investigations will allow gaining a better understanding of the patterns of transformations of sulfur-containing compounds of vacuum distillates in oxidative and thermal processes.The degradation of feedstock entering the refinery, leads to the need to increase the depth of oil refining. One of the promising methods for the processing of heavy hydrocarbon feedstocks is the combination of oxidation and subsequent cracking, which makes it possible to effectively remove polyaromatic sulfur compounds and to obtain additional quantities of distillate fractions. To develop effective methods of cracking of the products of oxidation of sulfur compounds, it is necessary to establish their thermal stability and the dependence of changes in the composition and properties of products on the conditions of oxidation and subsequent cracking. Vacuum gas oil was oxidized with a mixture of hydrogen peroxide with formic acid. The oxidized gas oil was cracked or divided into polar and non-polar components, with subsequent cracking. The composition of sulfur compounds of the cracking products was analyzed by chromatographic methods. Selective cracking of polar and non-polar components allows reducing g...
进入炼油厂的原料的降解,导致需要增加炼油深度。处理重烃原料的一种很有前途的方法是氧化和随后的裂解相结合,这使得有效地去除多芳硫化合物并获得额外数量的馏分成为可能。为了开发有效的含硫化合物氧化产物的裂解方法,有必要确定其热稳定性以及产物的组成和性能变化与氧化和随后的裂解条件的依赖关系。用过氧化氢和甲酸的混合物氧化真空瓦斯油。氧化气油裂解或分成极性组分和非极性组分,随后裂解。用色谱法分析了裂解产物中硫化物的组成。极性和非极性组分的选择性裂解可以减少气体的形成,提高馏分的收率。根据不同的条件,氧化硫化合物的裂解反应可以产生多种噻吩衍生物。进一步的研究将使我们能够更好地了解真空馏出物中含硫化合物在氧化和热过程中的转化模式。进入炼油厂的原料的降解,导致需要增加炼油深度。处理重烃原料的一种很有前途的方法是氧化和随后的裂解相结合,这使得有效地去除多芳硫化合物并获得额外数量的馏分成为可能。为了开发有效的含硫化合物氧化产物的裂解方法,有必要确定其热稳定性以及产物的组成和性能变化与氧化和随后的裂解条件的依赖关系。用过氧化氢和甲酸的混合物氧化真空瓦斯油。氧化气油裂解或分成极性组分和非极性组分,随后裂解。用色谱法分析了裂解产物中硫化物的组成。极性和非极性组分的选择性开裂允许降低g…
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引用次数: 0
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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019
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