摘要:
The measurement is carried out by a device of two non- dissociable measurement chains resulting in a continuous measurement which is representative of the total concentration of tars (even as traces) of a hot gas. It involves coupling of methods including one, SPME/GC/MS/PID, which is discontinuous and a priori partial, the other, PID, which is continuous but difficult to interpret alone. It is based on on-line processing of the elements transmitted by each of the measurement methods used. A tar generator (28) allows calibration of the apparatuses and calculation of the different coefficients required.
摘要翻译:测量由两个不可解离的测量链的装置进行,得到连续测量,其表示热气体的焦油(甚至痕量)的总浓度。 它涉及到包括一个SPME / GC / MS / PID在内的方法的耦合,其中SPME / GC / MS / PID是不连续的,先验部分是PID,另一个PID是连续的,但是难以单独解释。 它是基于所使用的每种测量方法传输的元素的在线处理。 焦油发生器(28)允许校准装置并计算所需的不同系数。
摘要:
The measurement is conducted by means of thermogravimetric scales (10) bearing at one end of the beam (20) a catalyst body (30) for catalysing a coking reaction of the tars present in the gas state. Precautions are taken in order to ensure homogeneity and regularity of the sampled gas flow and to guarantee predominant catalysis on the catalytic body (30), the weight increase of which gives the weight of the deposited coke and indirectly the content of tars present in the gas state in the gas to be measured. A calorimetric device (34) for analyzing gases from the coking of the tars provides a complementary and/or additional measurement. The solid tars are filtered beforehand, but their content may be measured by an auxiliary device.Possible application to analyzing gases from biomass.
摘要:
The measurement is carried out by means of two non-dissociable measurement chains resulting in a continuous measurement which is representative of the total concentration of tars (even as traces) of a hot gas. It involves coupling of methods including one, SPME/GC/MS/PID, which is discontinuous and a priori partial, the other, PID, which is continuous but difficult to interpret alone. It is based on on-line processing of the elements transmitted by each of the measurement methods used. A tar generator (28) allows calibration of the apparatuses and calculation of the different coefficients required.Possible application to the analysis of gas from biomass.
摘要翻译:测量通过两个不可解离的测量链进行,得到连续测量,其表示热气体的焦油(甚至痕迹)的总浓度。 它涉及到包括一个SPME / GC / MS / PID在内的方法的耦合,其中SPME / GC / MS / PID是不连续的,先验部分是PID,另一个PID是连续的,但是难以单独解释。 它是基于所使用的每种测量方法传输的元素的在线处理。 焦油发生器(28)允许校准装置并计算所需的不同系数。 可能应用于生物质气体分析。
摘要:
The measurement is conducted by means of thermogravimetric scales (10) bearing at one end of the beam (20) a catalyst body (30) for catalysing a coking reaction of the tars present in the gas state. Precautions are taken in order to ensure homogeneity and regularity of the sampled gas flow and to guarantee predominant catalysis on the catalytic body (30), the weight increase of which gives the weight of the deposited coke and indirectly the content of tars present in the gas state in the gas to be measured. A calorimetric device (34) for analyzing gases from the coking of the tars provides a complementary and/or additional measurement. The solid tars are filtered beforehand, but their content may be measured by an auxiliary device.Possible application to analyzing gases from biomass.
摘要:
The invention concerns a device for purifying a gas stream containing condensable vapours. The device comprises a shell (b 7) defining a sealed volume, a cooler for quenching the gas stream, a rotating assembly (42) including a rotor (44) and a cylindrical separating and filtering ferrule (54) consisting of two circular slotted bands (56) mounted on the rotor and rotating therewith; a supporting tube (48) mounted on the rotor (44) and bearing a swirling-scraper device (50), a cylindrical electrode (94) surrounding the separating and filtering ferrule (54) and a central counter-electrode (94) for creating an electrostatic field in the shell (7), an outlet duct for the purified gas, an outlet duct for the condensates (40). Impact and separation plates (64) are fixed on the bands of the collet.Device for purification of a gas flow containing condensable vapours.The device comprises a shell (7) defining a sealed volume, a cooler to quench the gas flow, a rotating assembly (42) comprising a rotor (44) and a cylindrical separation and filtration skirt (54) composed of serrated circular rings (56) mounted on the rotor and rotating with it; a support tube (48) mounted on the rotor (44) and carrying a turbulator-scraper device (50), a cylindrical electrode (94) surrounding the separation and filtration skirt (54) and a central counter-electrode (7) to create an electrostatic field in the shell (7), a purified gas. outlet tube , a condensates outlet pipe (40). Impact and separation plates (64) are fixed on the rings of the skirt.
摘要:
A device for purification of a gas flow containing condensable vapors including a shell (7) defining a sealed volume, a cooler to quench the gas flow, a rotating assembly (42) having a rotor (44) and a cylindrical separation and filtration skirt (54) composed of serrated circular rings (56) mounted on the rotor and rotating with it; a support tube (48) mounted on the rotor (44) and carrying a turbulator-scraper device (50) a cylindrical electrode (94) surrounding the separation and filtration skirt (54) and a central counter-electrode (78) to create an electrostatic field in the shell (7), a purified gas outlet tube, a condensates outlet pipe (40) and impact separation plates (64) fixed on the rings of the skirt.