Method for refinery foulant deposit characterization
    1.
    发明申请
    Method for refinery foulant deposit characterization 有权
    炼油厂污垢沉积特性的方法

    公开(公告)号:US20060014296A1

    公开(公告)日:2006-01-19

    申请号:US11173979

    申请日:2005-07-01

    IPC分类号: G01N24/00

    摘要: The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble sample with a scanning electron microscope and energy dispersive x-rays, performing a thermal gravimetric analysis including an ash test on the insoluble sample to determine the presence of polymer, coke and inorganic elements, performing an elemental analysis on the insoluble sample for the elements carbon, hydrogen, sulfur, nitrogen, halogens, and metals, performing an optical microscopy on the insoluble sample to determine the presence of wax, asphaltenes, anisotropic coke and isotropic coke, and identifying the solid foulant.

    摘要翻译: 本发明是一种识别未知组合物的炼厂固体污垢的方法,包括以下步骤:获得固体污垢样品,用溶剂从样品中除去捕获的饲料以获得不溶性样品,用扫描电子显微镜扫描不溶性样品 和能量色散X射线,进行热重分析,包括对不溶性样品进行灰分测试,以确定聚合物,焦炭和无机元素的存在,对不溶性样品进行碳,氢,硫,氮的元素分析 ,卤素和金属,对不溶性样品进行光学显微镜检查,以确定蜡,沥青质,各向异性焦炭和各向同性焦炭的存在,并鉴定固体污垢。

    Novel method for quantitating structural and non-structural
carbohydrates in feedstuffs
    3.
    发明授权
    Novel method for quantitating structural and non-structural carbohydrates in feedstuffs 失效
    用于定量饲料中结构和非结构性碳水化合物的新方法

    公开(公告)号:US4617276A

    公开(公告)日:1986-10-14

    申请号:US773054

    申请日:1985-09-06

    申请人: James E. Nocek

    发明人: James E. Nocek

    摘要: A novel method of determining the portion of a given dairy cow feedstuff which is attributable to non-structural carbohydrates is disclosed. The method includes the steps of analytically determining the percentages of crude protein, lipid and ash in the dry matter concentration of a first feed sample, and in the neutral detergent fiber which has been separated from the soluble matter of a second sample of the same feed, and subtracting the amounts of crude protein, lipid and ash in the neutral detergent fiber from the respective amounts of the same substances in the original sample. The three difference figures are totaled and subtracted from the percentage of the second sample represented by neutral detergent solubles, i.e., 100 minus neutral detergent fiber, thereby providing an accurate indication of the percentage of non-structural carbohydrate in the feedstuff. The method is applied to both forages and grains, and is employed in the formulation of dairy cow rations wherein ration is adjusted to optimize milk production, the preferred percentage being from about 30% to about 45% depending on forage type.

    摘要翻译: 公开了一种确定归因于非结构性碳水化合物的给定乳牛饲料部分的新方法。 该方法包括以下步骤:分析确定第一进料样品的干物质浓度中的粗蛋白质,脂质和灰分的百分比,以及已经从相同进料的第二样品的可溶物质分离的中性洗涤剂纤维 ,并从原始样品中的相同量的相应物质中减去中性洗涤剂纤维中粗蛋白质,脂质和灰分的量。 三个差异图被总计,并从由中性洗涤剂可溶物(即100中性洗涤剂纤维)表示的第二样品的百分比中减去,从而提供饲料中非结构性碳水化合物百分比的准确指示。 该方法适用于饲料和谷物,并用于奶牛配方的制剂中,其中调整配给以优化产奶量,优选的百分比为约30%至约45%,具体取决于饲料类型。

    Method for refinery foulant deposit characterization
    8.
    发明授权
    Method for refinery foulant deposit characterization 有权
    炼油厂污垢沉积特性的方法

    公开(公告)号:US07708864B2

    公开(公告)日:2010-05-04

    申请号:US11173979

    申请日:2005-07-01

    IPC分类号: C10B43/14

    摘要: The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble sample with a scanning electron microscope and energy dispersive x-rays, performing a thermal gravimetric analysis including an ash test on the insoluble sample to determine the presence of polymer, coke and inorganic elements, performing an elemental analysis on the insoluble sample for the elements carbon, hydrogen, sulfur, nitrogen, halogens, and metals, performing an optical microscopy on the insoluble sample to determine the presence of wax, asphaltenes, anisotropic coke and isotropic coke, and identifying the solid foulant.

    摘要翻译: 本发明是一种识别未知组合物的炼厂固体污垢的方法,包括以下步骤:获得固体污垢样品,用溶剂从样品中除去捕获的饲料以获得不溶性样品,用扫描电子显微镜扫描不溶性样品 和能量色散X射线,进行热重分析,包括对不溶性样品进行灰分测试,以确定聚合物,焦炭和无机元素的存在,对不溶性样品进行碳,氢,硫,氮的元素分析 ,卤素和金属,对不溶性样品进行光学显微镜检查,以确定蜡,沥青质,各向异性焦炭和各向同性焦炭的存在,并鉴定固体污垢。

    System and method for a thermogravimetric analyzer having improved dynamic weight baseline
    9.
    发明授权
    System and method for a thermogravimetric analyzer having improved dynamic weight baseline 有权
    具有改进的动态重量基线的热重分析仪的系统和方法

    公开(公告)号:US07416328B2

    公开(公告)日:2008-08-26

    申请号:US11317050

    申请日:2005-12-27

    IPC分类号: G01N25/00 G01K13/00

    摘要: Systems and methods for minimizing extraneous forces and calculating corrected weights of samples based on buoyancy factors for a thermogravimetric analyzer (TGA). The TGA includes a balance chamber and a furnace configured to heat a sample. A null balance is provided in the balance chamber and is used to measure the sample weight change during heating. The furnace includes a cylinder open at the top to receive a sample. The bottom of the cylinder is closed except for a small hole that allows a thermocouple to pass through. An infrared heat source may be provided to heat the cylinder. The balance chamber can be thermally isolated from the furnace using an actively cooled plate and a system of heat shields disposed between the furnace and balance chamber. A thermocouple disk is further provided to limit gas flow in the furnace and increase reliability of sample weight measurements.

    摘要翻译: 基于热重分析仪(TGA)的浮力因子,最小化外来力并计算样本的校正重量的系统和方法。 TGA包括配置成加热样品的平衡室和炉。 在平衡室中提供零平衡,用于在加热期间测量样品重量变化。 该炉包括在顶部开口以接收样品的圆筒。 气缸的底部是封闭的,除了允许热电偶通过的小孔。 可以提供红外热源来加热气缸。 平衡室可以使用主动冷却的板和设置在炉和平衡室之间的隔热系统与炉热隔离。 还提供热电偶盘以限制炉中的气体流动并增加样品重量测量的可靠性。

    Method for determining corrosion susceptibility of nuclear fuel cladding
to nodular corrosion
    10.
    发明授权
    Method for determining corrosion susceptibility of nuclear fuel cladding to nodular corrosion 失效
    确定核燃料包层对结核腐蚀的腐蚀敏感性的方法

    公开(公告)号:US5991352A

    公开(公告)日:1999-11-23

    申请号:US50214

    申请日:1998-03-30

    IPC分类号: C22F1/18 G21C17/00 G21C19/00

    摘要: A method for determining the susceptibility of a sample of Zircaloy alloy to nodular corrosion. A specimen of such Zircaloy sample is annealed at a temperature within a temperature range bounded at its upper limit by the temperature T.sub.c being the temperature at equilibrium wherein sufficient solute would exist in the (.alpha.-matrix of the particular zircaloy to resist nodular corrosion, and bounded by a lower temperature, such temperature being the temperature of the (.alpha.+precipitate)/(.alpha.+.beta.+precipitate) transus for the particular Zircaloy sample. For Zircaloy-2, such temperature range is from approximately 825.degree. C. to 841.degree. C. The specimen is maintained at such selected temperature within such temperature range for a measured period, and subsequently exposed to steam at a fixed temperature and pressure for a fixed time. If nodular corrosion does not appear the above steps are repeated, but on each different specimen increasing the measured time period until a last measured time period is obtained when nodular corrosion first appears on a specimen. The length of the last measured time period is used as an indicator of the sample's resistance to nodular corrosion, and thus conversely its susceptibility to nodular corrosion.

    摘要翻译: 一种确定Zircaloy合金样品对结节腐蚀的敏感性的方法。 这种Zircaloy样品的样品在其上限温度范围内的温度下退火,其温度Tc为平衡温度,其中足够的溶质将存在于特定的氧化锆中的α-基质以抵抗结核腐蚀,以及 对于Zircaloy-2来说,这个温度是(α+沉淀物)/(α+β+沉淀物)/(α+β+沉淀物)转化温度,温度范围是从大约825℃到841℃ 将样品在这样的温度范围内保持一定的时间,然后在固定温度和压力下暴露于蒸汽一段固定的时间,如果没有出现结节腐蚀,则重复上述步骤,但是 每个不同的样品增加测量的时间段,直到最终测量的时间段在样品上首次出现结节腐蚀时,获得长度 最后测量的时间段用作样品对结节腐蚀的抗性的指标,因此反过来也是对结节腐蚀的敏感性。