公开(公告)号：US08919179B2

公开(公告)日：2014-12-30

申请号：US13710599

申请日：2012-12-11

Applicant: ExxonMobil Research and Engineering Company

Inventor： Henry Alan Wolf ,  Alan M. Schliowitz ,  Manuel S. Alvarez ,  Anastasios Skoulidas ,  David Samuel Deutsch ,  Richard J. Basile

IPC: G01N17/04

CPC classification number: G01N17/04

Abstract: A system and method for optimizing the response of a metal loss sensor which is configured in a way that its insertion depth and orientation in the process fluid are adjustable. These adjustments affect local turbulence and thereby enable achieving a desired corrosion rate at the metal loss sensor. Corrosion rate comparison between the metal loss sensor and pressure containment boundary can be measured directly or indirectly by computing wall shear stresses at the sensor and the pressure containment boundary.

Abstract translation: 一种用于优化金属损失传感器的响应的系统和方法，其被配置为使得其在工艺流体中的插入深度和取向是可调节的。 这些调整影响局部湍流，从而能够在金属损失传感器处获得期望的腐蚀速率。 通过计算传感器和压力容纳边界处的壁剪切应力，可以直接或间接测量金属损耗传感器和压力容纳边界之间的腐蚀速率比较。

公开(公告)号：US10139387B2

公开(公告)日：2018-11-27

申请号：US14818623

申请日：2015-08-05

Applicant: ExxonMobil Research and Engineering Company

Inventor： Roger Grant Gaughan ,  David John Abdallah ,  Dennis Harold Hoskin ,  Manuel S. Alvarez ,  Christopher J. Wolfe

IPC: G01N29/036 ,  G01N33/22 ,  G01N29/02 ,  G01N29/44

Abstract: Methods are provided for characterizing the stability of a distillate fraction using a quartz crystal microbalance apparatus, such as a distillate fraction derived at least in part from a pre-refined crude oil. A sample can be aged for an aging period in a quartz crystal microbalance apparatus, and a frequency value for the sample in the quartz crystal microbalance apparatus can be determined before and after the aging period to determine a frequency difference. This frequency difference can be correlated directly with the ability of a jet fuel fraction to satisfy a stability test standard, such as a jet fuel breakpoint stability. The methods can also include using a temperature profile during characterization that can reduce or minimize operator error during the characterization.

公开(公告)号：US09500461B2

公开(公告)日：2016-11-22

申请号：US13710581

申请日：2012-12-11

Applicant: ExxonMobil Research and Engineering Company

Inventor： Henry Alan Wolf ,  Alan M. Schliowitz ,  Manuel S. Alvarez ,  Anastasios Skoulidas ,  David Samuel Deutsch ,  Katie Walker

IPC: G01B5/00 ,  G06F17/10 ,  G01N17/04

CPC classification number: G01B5/00 ,  G01N17/04 ,  G06F17/10

Abstract: A method for determining the amount and rate of corrosion which has occurred on the surface of a process unit by measuring corrosion with a corrosion sensor and measuring at least one parameter inside the process unit. Corrosion on the internal surfaces of a process unit can then be determined.

Abstract translation: 通过用腐蚀传感器测量腐蚀并测量处理单元内的至少一个参数来确定在处理单元的表面上发生的腐蚀的量和速率的方法。 然后可以确定处理单元内表面的腐蚀。

公开(公告)号：US09778241B2

公开(公告)日：2017-10-03

申请号：US14818647

申请日：2015-08-05

Applicant: ExxonMobil Research and Engineering Company

Inventor： Roger Grant Gaughan ,  Manuel S. Alvarez ,  David John Abdallah ,  Christopher J. Wolfe

IPC: G01N33/28 ,  G01N29/02 ,  G01N29/036 ,  G01N29/44

CPC classification number: G01N33/2823 ,  G01N29/022 ,  G01N29/036 ,  G01N29/4427 ,  G01N2291/014 ,  G01N2291/0224 ,  G01N2291/0426

Abstract: Methods are provided for characterizing the stability of a distillate fraction using a quartz crystal microbalance apparatus, such as a distillate fraction derived at least in part from a pre-refined crude oil. A sample can be aged for an aging period in a quartz crystal microbalance apparatus, and a frequency value for the sample in the quartz crystal microbalance apparatus can be determined before and after the aging period to determine a frequency difference. This frequency difference can be correlated directly with the ability of a jet fuel fraction to satisfy a stability test standard, such as a jet fuel breakpoint stability. The methods can also include using a temperature profile during characterization that can reduce or minimize operator error during the characterization.