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瓦斯    
相关语句
  gas
    Using self-developed experimental installation,four processes of gas hydrate formation in coal-surfactant solution systems were investigated at 15.3~25.4℃ and 0.41~24.72MPa,and the thermodynamic parameters were obtained. Based on hydrate formation rate theory,the experiment data were calculated.
    利用自制水合物实验装置研究了温度为15.3~25.4℃、压力为0.41~24.72 MPa条件下4组煤—表面活性剂溶液体系中瓦斯水合物的生成过程,得到水合物生成的热力学参数,运用气体水合物生成速率理论对实验数据进行了计算。
短句来源
    NUMERICAL SIMULATION ON THE DIMENSION OF THE BACKFLOW REGION IN A GAS BURNER
    瓦斯燃烧器回流区数值模拟研究
短句来源
    Exactly quantify to residual gas in pipeline and vessel with gas chromatography
    管线、容器、储罐中残留瓦斯气的准确定量
短句来源
    Gas hydrate formation in coal-surfactant solution systems
    瓦斯水合物在煤—表面活性剂溶液体系中的生成
短句来源
    Study on coal gas catalytic decomposition in rotating packed bed reactor
    旋转超重力场反应器催化裂解煤矿瓦斯的研究
短句来源
更多       
  gas
    Using self-developed experimental installation,four processes of gas hydrate formation in coal-surfactant solution systems were investigated at 15.3~25.4℃ and 0.41~24.72MPa,and the thermodynamic parameters were obtained. Based on hydrate formation rate theory,the experiment data were calculated.
    利用自制水合物实验装置研究了温度为15.3~25.4℃、压力为0.41~24.72 MPa条件下4组煤—表面活性剂溶液体系中瓦斯水合物的生成过程,得到水合物生成的热力学参数,运用气体水合物生成速率理论对实验数据进行了计算。
短句来源
    NUMERICAL SIMULATION ON THE DIMENSION OF THE BACKFLOW REGION IN A GAS BURNER
    瓦斯燃烧器回流区数值模拟研究
短句来源
    Exactly quantify to residual gas in pipeline and vessel with gas chromatography
    管线、容器、储罐中残留瓦斯气的准确定量
短句来源
    Gas hydrate formation in coal-surfactant solution systems
    瓦斯水合物在煤—表面活性剂溶液体系中的生成
短句来源
    Study on coal gas catalytic decomposition in rotating packed bed reactor
    旋转超重力场反应器催化裂解煤矿瓦斯的研究
短句来源
更多       
  methane
    After systematic sampling and analysis, the result is confirmed that hydrogen and helium in the gas of coal bed universally are against methane in concentration.
    经过系统采样和分析,结果证实煤层瓦斯中氢气、氦气与甲烷一样普遍存在; 易突出煤岩释放氢气的浓度较高;
短句来源
    The author describes the whole process of coal absorption of gas,recounts the main absorptive theories of coalbed methane and analyzes the main factors affecting coal absorptive ability.
    描述了煤吸附瓦斯气体的全过程 ,叙述了煤层气 (瓦斯 )主要吸附理论 ,得出了影响煤吸附能力的主要因素
短句来源
  gas
    Using self-developed experimental installation,four processes of gas hydrate formation in coal-surfactant solution systems were investigated at 15.3~25.4℃ and 0.41~24.72MPa,and the thermodynamic parameters were obtained. Based on hydrate formation rate theory,the experiment data were calculated.
    利用自制水合物实验装置研究了温度为15.3~25.4℃、压力为0.41~24.72 MPa条件下4组煤—表面活性剂溶液体系中瓦斯水合物的生成过程,得到水合物生成的热力学参数,运用气体水合物生成速率理论对实验数据进行了计算。
短句来源
    NUMERICAL SIMULATION ON THE DIMENSION OF THE BACKFLOW REGION IN A GAS BURNER
    瓦斯燃烧器回流区数值模拟研究
短句来源
    Exactly quantify to residual gas in pipeline and vessel with gas chromatography
    管线、容器、储罐中残留瓦斯气的准确定量
短句来源
    Gas hydrate formation in coal-surfactant solution systems
    瓦斯水合物在煤—表面活性剂溶液体系中的生成
短句来源
    Study on coal gas catalytic decomposition in rotating packed bed reactor
    旋转超重力场反应器催化裂解煤矿瓦斯的研究
短句来源
更多       

 

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  gas
Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics
      
The explicit solution to Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics is given.
      
Photocatalytic Oxidation of Aniline in the Gas Phase Using Porous TiO2 Thin Films
      
The gas-phase photocatalytic oxidation of aniline on a new kind of porous nano-TiO2 composite films is investigated.
      
Acetone solution-casting films of poly(methylmethacrylate) were analyzed by differential scanning calorimetry and pyrolysis gas chromatography-mass spectroscopy under natural evaporation and ultrasonic vibration, respectively.
      
更多          
  gas
Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics
      
The explicit solution to Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics is given.
      
Photocatalytic Oxidation of Aniline in the Gas Phase Using Porous TiO2 Thin Films
      
The gas-phase photocatalytic oxidation of aniline on a new kind of porous nano-TiO2 composite films is investigated.
      
Acetone solution-casting films of poly(methylmethacrylate) were analyzed by differential scanning calorimetry and pyrolysis gas chromatography-mass spectroscopy under natural evaporation and ultrasonic vibration, respectively.
      
更多          
  methane
Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas
      
The effects of MgO promoter on the physicochemical properties and catalytic performance of Ni/Al2O3 catalysts for the partial oxidation of methane to syngas were studied by means of BET, XRD, H2-TPR, TEM and performance evaluation.
      
Moreover, for the catalysts with a proper amount of MgO promoter, the nickel dispersiveness was enhanced, therefore making their catalytic performance in methane partial oxidation improved.
      
The plasma catalyst treatment could totally change the distribution of aromatic products with higher methane conversion compared to the untreated catalyst.
      
Besides precursors, methane as the carbon source and hydrogen as the ablation, oxygen or H2O was alternatively inlet into the reactive chamber at the pressure of 0.05 MPa.
      
更多          
  gas
Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics
      
The explicit solution to Cauchy problem for linearized system of two-dimensional isentropic flow with axisymmetrical initial data in gas dynamics is given.
      
Photocatalytic Oxidation of Aniline in the Gas Phase Using Porous TiO2 Thin Films
      
The gas-phase photocatalytic oxidation of aniline on a new kind of porous nano-TiO2 composite films is investigated.
      
Acetone solution-casting films of poly(methylmethacrylate) were analyzed by differential scanning calorimetry and pyrolysis gas chromatography-mass spectroscopy under natural evaporation and ultrasonic vibration, respectively.
      
更多          
  其他


The catalytic cracking behaviors of the VGO of Gudao and the mixture of VGO and DAO by supercritical fluid extraction from Gudao residue were studied in a confined fluidized bed reactor. Meta Y-15 and RHZ-200 Were used as the equilibrium catalysts. The experimental data show that addition of DAO to VGO by 10:100 deteriorates the yield structure distinctly. When the blending ratio of DAO:VGO increased from 10:100 to 20:100, the influence on the product distribution was not prominent as that of the blending ratio...

The catalytic cracking behaviors of the VGO of Gudao and the mixture of VGO and DAO by supercritical fluid extraction from Gudao residue were studied in a confined fluidized bed reactor. Meta Y-15 and RHZ-200 Were used as the equilibrium catalysts. The experimental data show that addition of DAO to VGO by 10:100 deteriorates the yield structure distinctly. When the blending ratio of DAO:VGO increased from 10:100 to 20:100, the influence on the product distribution was not prominent as that of the blending ratio from 0 to 10 : 100. However, coke yield increased apparently, closely propotional to the amount of DAO. The results show that the coke selectivity of RHZ-200 is better than that of meta Y-15. RHZ-200 is more suitable for heavy oils. The experimental data can provide useful information for process design.

利用实验室固定式流化床反应装置,考察了将孤岛渣油的超临界溶剂脱沥青油(DAO)掺入到孤岛减压瓦斯油(VGO)中对其催化裂化反应结果的影响.同时考察了两种裂化催化剂偏Y-15和RHZ-200的不同性能,实验结果表明,掺入量为10%时,其裂化性能较VGO明显地变差;掺入量由10%增大到20%,其产品分布的差异表现不很明显,但焦炭产率明显增加,焦炭产率与DAO的掺入量近似成直线关系.偏Y-15和RHZ-200裂化性能的差异不很明显,但后者的焦炭选择性好,适用于重质原料.

Utilizing the latest advance in the study of coal macromolecular structure,the adsorption essence of gas on coal surface is analysed according to theory of molecular thermodynamics and surface physical chemistry.The interaction force between gas molecules and coal surface molecules is estated.The results almost agree with the experiment data of the adsorption heat.

利用煤大分子结构研究的最新成果,根据分子热力学和表面物理化学的理论,对矿井瓦斯气体在煤表面的吸附本质进行了分析,并对主要瓦斯气体与煤表面的相互作用力进行了估算,结果与实测的吸附热数据基本一致。

The phosphorus modified pillared rectorite catalysts were prepared and the coking behavior of the catalyst during the cracking of a light gas oil was examined.It has been found that the acidity and cracking activity of the phosphorus modified catalysts are increased and the anticoking ability of the catalyst,which is modified by suitable phosphorus compound,can be improved remarkably.So it is considered that the coking reaction is related to the amount of acid sites and the coordinated action of Lewis/Brnsted...

The phosphorus modified pillared rectorite catalysts were prepared and the coking behavior of the catalyst during the cracking of a light gas oil was examined.It has been found that the acidity and cracking activity of the phosphorus modified catalysts are increased and the anticoking ability of the catalyst,which is modified by suitable phosphorus compound,can be improved remarkably.So it is considered that the coking reaction is related to the amount of acid sites and the coordinated action of Lewis/Brnsted acid sites.

采用有机磷化合物对层柱交联累托石催化剂进行了改性研究。考察了有机磷化合物的加入对催化剂轻瓦斯油裂化活性和积炭性能的影响。结果表明:含有适量磷化合物的层柱交联累托石催化剂,焦炭产率可降低30%;轻瓦斯油在层柱交联累托石催化剂上的裂化反应和积炭反应是并行的,而裂化活性仍保持不变。磷化合物的加入使层柱交联累托石催化剂的B酸强度增加,但积炭反应主要不是由B酸强度决定,而是与强弱B酸中心数目的比例以及B酸和L酸的协同作用有关。

 
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