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公开(公告)号：US10591456B2
公开(公告)日：2020-03-17
申请号：US15453071
申请日：2017-03-08
Applicant: ExxonMobil Research and Engineering Company
Inventor： Limin Song
Abstract: Methods and systems for in situ monitoring of coke morphology in a delayed coking unit. At least one transmitting electrode and at least one receiving electrode are utilized to transmit AC current across coke being formed within the delayed coking unit. An impedance analyzer can be used to measure the impedance encountered between the transmitting electrode and the receiving electrode. This measure impedance is compared to an impedance curve comprising known impedance values for different coke morphologies to determine the morphology of coke being formed in the delayed coking unit.
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Patent Agency Ranking
公开(公告)号：US20170219208A1
公开(公告)日：2017-08-03
申请号：US15404641
申请日：2017-01-12
Applicant: ExxonMobil Research and Engineering Company
Inventor： Limin Song , Yibing Zhang
CPC classification number: F23N5/16 , F23N5/242 , F23N2005/165 , F23N2023/00 , F23N2023/08 , F23N2029/00 , G01H9/004
Abstract: Systems and methods for using at least one sensor for monitoring a condition in a furnace are disclosed. The at least one sensor can be an optical fiber acoustic sensor. The at least one sensor can be coupled to at least one processor that can be configured to receive at least one measurement from the sensor, convert the at least one measurement into a digital format, and determine a condition associated with at least one burner based at least in part on the digital format. The digital format can be, for example, a sound waveform or a frequency spectrum.
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公开(公告)号：US10427074B2
公开(公告)日：2019-10-01
申请号：US15951241
申请日：2018-04-12
Applicant: ExxonMobil Research and Engineering Company
Inventor： Limin Song , Mohsen S. Yeganeh , Clarence E. Chase , Geoffrey M. Keiser
Abstract: Apparatuses and processes for use in electrostatic filtration are provided. The apparatuses and processes provided herein promote effective and efficient removal of solid matters even in feeds containing a relatively substantial amount of water through the use of a water spreading resistant coating.
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公开(公告)号：US20170284991A1
公开(公告)日：2017-10-05
申请号：US15453071
申请日：2017-03-08
Applicant: ExxonMobil Research and Engineering Company
Inventor： Limin Song
CPC classification number: G01N33/222 , C10B41/00 , C10B45/00 , C10B55/00 , C10G9/005
Abstract: Methods and systems for in situ monitoring of coke morphology in a delayed coking unit. At least one transmitting electrode and at least one receiving electrode are utilized to transmit AC current across coke being formed within the delayed coking unit. An impedance analyzer can be used to measure the impedance encountered between the transmitting electrode and the receiving electrode. This measure impedance is compared to an impedance curve comprising known impedance values for different coke morphologies to determine the morphology of coke being formed in the delayed coking unit.
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公开(公告)号：US20200300674A1
公开(公告)日：2020-09-24
申请号：US16785828
申请日：2020-02-10
Applicant: ExxonMobil Research and Engineering Company
Inventor： Limin Song , Yibing Zhang , Mark M. Disko
Abstract: Embodiments described herein include an acoustic telemetry system for use with an apparatus configured to rotate. The acoustic telemetry system includes one or more sensor nodes and at least one receiver node. In at least one embodiment, the telemetry system also includes at least one hub node positioned on the apparatus. Each sensor node is attached to or embedded in the apparatus. Each sensor node obtains data related to one or more operating conditions of the apparatus and the environment surrounding the apparatus. The one or more sensor nodes encode and transmit the data to the hub node or the receiver node using ultrasonic acoustic waves. In at least one embodiment, the hub node transmits the data to the receiver node. The receiver node decodes the data and monitors the one or more operating conditions of the apparatus.
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公开(公告)号：US10370962B2
公开(公告)日：2019-08-06
申请号：US15806533
申请日：2017-11-08
Applicant: ExxonMobil Research and Engineering Company
Inventor： Yibing Zhang , Limin Song , Zhen Li
Abstract: A system for monitoring a line comprising a line, such as a mooring line, umbilical, pipeline, or riser. connected to an offshore structure including a control processor located on the offshore structure, a wireless network comprising a plurality of communication nodes positioned along the line, and a plurality of measurement devices embedded within the communication nodes. When the line is being monitored, the output of each of the measurement devices is in continuous wireless communication with the wireless network via at least one of the communication nodes positioned along the line and the wireless network is in continuous communication with the control processor.
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