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石油气中硫醇硫的含量检测方案

AT-700自动电位滴定仪测定测定石油气中硫醇硫的含量的应用-2012 Mercaptan 使用自动电位滴定仪测定硫醇硫的含量的应用 Mercaptan test by AT-700 使用日本京都电子公司(KEM)-自动电位滴定仪(AT-700),测定馏分燃料中硫醇硫的应用资料。 自动电位滴定仪AT-610 自动电位滴定仪AT-510 自动电位滴定仪AT-500N 符合下列标准规范: GB/T 1792-1988 馏分燃料中硫醇硫测定法(电位滴定法)。Distillate fuels-Determination of mercaptan sulphur-Potentiometric titration method GB/T 11060.6-2011 天然气含硫化合物的测定第6部分:用电位法测硫化氢、硫醇硫和硫氧化碳含量。Natural gas - Determination of sulfur compounds - Part 6: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry ASTM D3227 - 04a(2010) Standard Test Method for (Thiol Mercaptan) Sulfur in Gasoline, Kerosine, Aviation Turbine, and Distillate Fuels (Potentiometric Method)(汽油、煤油、航空汽轮机燃料及馏出燃料中(硫醇态)硫含量的试验方法(电位法)。 UOP163 - 10 Hydrogen Sulfide and Mercaptan Sulfur in Liquid Hydrocarbons by Potentiometric Titration(用电位滴定法测定液烃中氢化硫和硫醇硫)。 ISO 3012:1999 Petroleum products -- Determination of thiol (mercaptan) sulfur in light and middle distillate fuels -- Potentiometric method(石油产品轻质和中间馏份燃料硫醇硫的测定电位滴定法)。 ISO 6326-3:1989 Natural gas -- Determination of sulfur compounds -- Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry(用电势分析法对硫化氢、硫醇硫和硫化羰基硫的测定)。 BS 2000-272:2000 Methods of test for petroleum and its products. Determination of mercaptan sulfur and hydrogen sulfide content of liquefied petroleum gases (LPG). Electrometric titration method(石油和石油产品的试验方法.液化石油气(LPG)的硫醇硫和硫化氢含量的测定.电位滴定法)。
检测样品: 其他
检测项: 硫醇硫的含量

上海旭风科学仪器有限公司

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油中温度和压力对处于贫油预混预蒸发燃烧阶段火焰的影响检测方案(烟气分析仪)

The purpose of this experimental work is to study lean premixed n-heptane/air flames in order to identify the factors governing flame structure and flame stabilization. The experimental burner is composed of a cylindrical combustion chamber placed in a pressurized and cooled casing. Downstream, a converging nozzle with variable section allows to rise the pressure up to 8 bar inside the combustion chamber. Combustion air can be preheated up to 600°C. The n-heptane/air injector is a radial swirler injector which induces an estimated value of 1.74 for the swirl number. The premix tube is a 70mm length and 10 mm diameter cylinder. The droplets are detected by laser tomographic imaging and their size is measured by light diffraction. The reacting zone is visualized by CH* chemiluminescence imaging and the structure of inner recirculation zone by P-LIF-OH imaging. The analysis of laser tomographic images points out the pre-heating effect on the vaporization of liquid fuel. At T = 25°C and P = 1 bar, droplets are not totally evaporated in spite of their small initial diameter, (50 μm without combustion). Totally prevaporized regime is achieved for temperature values above 100°C. Measurements of CH* chemiluminescence for a fixed mean flow velocity V = 70 m/s, and for T = 25°C, 100°C and 200°C show that the flame remains weakly anchored at the nozzle exit. The flame stability evolves with the combustion air temperature and is linked with the position of the Inner Recirculation Zone (IRZ). On the other hand the pressure is a stabilizing factor for constant conditions of velocity and equivalence ratio, because the position of the IRZ does not fluctuates. At constant injection velocity, aerodynamic structure is modified by pressure increasing. At a given critical pressure value, the flame becomes unstable until it reaches a stable flash-back state.
检测样品: 其他
检测项: 温度和压力对处于贫油预混预蒸发燃烧阶段火焰的影响

北京欧兰科技发展有限公司

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