Patents by Inventor Shiun Ling
Shiun Ling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240034628Abstract: Oxygen-containing graphenic nanomaterial (OGN)-doped novolac polymers suitable for producing graphitized carbon may be synthesized based on a correlation between (a) the amount of OGN and/or the oxygen content of the OGN and (b) at least one property of a resultant graphitized carbon. For example, a method may comprise: synthesizing an OGN-doped novolac polymer, wherein an amount of OGN and/or an oxygen content of the OGN used in the synthesizing is based on a correlation between (a) the amount of OGN and/or the oxygen content of the OGN and (b) at least one property of a resultant graphitized carbon; and carbonizing and graphitizing the OGN-doped novolac polymer to yield a graphitized carbon.Type: ApplicationFiled: June 26, 2023Publication date: February 1, 2024Applicant: ExxonMobil Technology and Engineering CompanyInventor: Shiun Ling
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Publication number: 20230374635Abstract: The present invention relates to ferrous alloys with high strength, cost-effective corrosion resistance and cracking resistance for refinery service environments, such as amine service under sweet or sour environments. More specifically, the present invention pertains to a type of ferrous manganese alloyed steels for high strength and cracking resistance and methods of making and using the same.Type: ApplicationFiled: August 4, 2021Publication date: November 23, 2023Applicant: ExxonMobil Technology and Engineering CompanyInventors: Hyun-Woo Jin, Ning Ma, Shiun Ling, Hyun Jo Jun
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Patent number: 11717889Abstract: Methods disclosed herein include using additive manufacturing to create a joint between a first metallic material and a second metallic material that is different from the first metallic material, wherein the porosity of the joint is less than about 0.1 percent by volume measured according to ASTM B-962. The additive manufacturing can be performed such that no intermetallic brittle phase forms between the first metallic material and the second metallic material.Type: GrantFiled: January 10, 2020Date of Patent: August 8, 2023Assignee: Exxon Mobil Technology and Engineering CompanyInventors: Ning Ma, Hyun-Woo Jin, Shiun Ling
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Patent number: 10883965Abstract: For method of utilizing a nondestructive evaluation method to inspect a steel material comprising at least one hysteretic ferromagnetic material and/or at least one nonhysteretic material to identify one or more material conditions and/or one or more inhomogeneities in steel material, the method can comprise the steps of: interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field; scanning the steel material and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material; determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response; and correlating the time dependent nonlinear characteristic of the received magnetic response and/or acoustic response to the one or more material conditions and/or one or more inhomogeneities in steel material.Type: GrantFiled: October 19, 2018Date of Patent: January 5, 2021Assignee: ExxonMobil Research and Engineering CompanyInventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling, Joseph W. Krynicki, Jamey A. Fenske
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Patent number: 10823701Abstract: A method for determining one or more material conditions of a hysteretic ferromagnetic material and/or a nonhysteretic material can include interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material. The method can also include determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response and correlating the time dependent nonlinear characteristic of the received magnetic response or acoustic response to one or more material conditions of the material.Type: GrantFiled: October 19, 2018Date of Patent: November 3, 2020Assignee: ExxonMobil Research and Engineering CompanyInventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling
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Publication number: 20200230697Abstract: Methods disclosed herein include using additive manufacturing to create a joint between a first metallic material and a second metallic material that is different from the first metallic material, wherein the porosity of the joint is less than about 0.1 percent by volume measured according to ASTM B-962. The additive manufacturing can be performed such that no intermetallic brittle phase forms between the first metallic material and the second metallic material.Type: ApplicationFiled: January 10, 2020Publication date: July 23, 2020Inventors: Ning Ma, Hyun-Woo Jin, Shiun Ling
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Publication number: 20190145934Abstract: A method for determining one or more material conditions of a hysteretic ferromagnetic material and/or a nonhysteretic material can include interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material. The method can also include determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response and correlating the time dependent nonlinear characteristic of the received magnetic response or acoustic response to one or more material conditions of the material.Type: ApplicationFiled: October 19, 2018Publication date: May 16, 2019Inventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling
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Publication number: 20190145931Abstract: A device for detecting one or more material qualities of a sample composed of at least one hysteretic magnetic material includes a magnet configured to provide a DC magnetic field which has a spatially varying magnetic field in at least a portion of the regions of interest, two or more suitable sensors disposed at locations with different magnetic field strengths in the regions of interest configured to receive magnetic responses. The device can also include a processor, configured to execute a method, the method comprising recording magnetic responses from two or more suitable sensors disposed at the said different locations, and correlating all the said received magnetic responses to one or more material qualities of the said sample composed of at least one hysteretic ferromagnetic material.Type: ApplicationFiled: October 19, 2018Publication date: May 16, 2019Inventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling
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Publication number: 20190145933Abstract: Provided is a method of utilizing a nondestructive evaluation method to inspect/screen steel components (like plates), steel metal pipes, and seam welds and girth welds of the pipes to identify material phases and assess material qualities. The method includes: providing a DC magnetic field from a magnet to a steel plate, pipe, or weld composed of at least one hysteretic ferromagnetic material followed by scanning the plate, pipe, or weld and recording magnetic responses from two or more suitable sensors disposed at locations with different magnetic field strengths in the regions of interest configured to receive magnetic responses; and correlating all the said received magnetic responses to one or more material qualities and/or material phases of the plate, pipe, or weld. The one or more material qualities includes regions of higher hardness, regions of metal loss, regions of surface cracks, amount of undesirable phases, and combinations thereof.Type: ApplicationFiled: October 19, 2018Publication date: May 16, 2019Inventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling, Joseph W. Krynicki, Jamey A. Fenske
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Publication number: 20190145932Abstract: For method of utilizing a nondestructive evaluation method to inspect a steel material comprising at least one hysteretic ferromagnetic material and/or at least one nonhysteretic material to identify one or more material conditions and/or one or more inhomogeneities in steel material, the method can comprise the steps of: interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field; scanning the steel material and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material; determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response; and correlating the time dependent nonlinear characteristic of the received magnetic response and/or acoustic response to the one or more material conditions and/or one or more inhomogeneities in steel material.Type: ApplicationFiled: October 19, 2018Publication date: May 16, 2019Inventors: Lang Feng, Qiuzi Li, Harry W. Deckman, Paul M. Chaikin, Neeraj S. Thirumalai, Shiun Ling, Joseph W. Krynicki, Jamey A. Fenske
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Patent number: 10053390Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: GrantFiled: August 8, 2016Date of Patent: August 21, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
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Publication number: 20170088910Abstract: Improved steel compositions and methods of making the same are provided. The present disclosure provides advantageous corrosion and/or cracking resistant steel. More particularly, the present disclosure provides high manganese (Mn) steel compositions having enhanced corrosion and/or cracking resistance, and methods for fabricating high manganese steel compositions having enhanced corrosion and/or cracking resistance. Methods for fabricating high manganese steel compositions (e.g., via passivation) having enhanced corrosion and/or cracking resistance are also provided.Type: ApplicationFiled: September 29, 2015Publication date: March 30, 2017Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Hyun Woo Jin, Shiun Ling, Ning Ma
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Publication number: 20160340257Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: ApplicationFiled: August 8, 2016Publication date: November 24, 2016Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
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Patent number: 9441166Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: GrantFiled: July 25, 2014Date of Patent: September 13, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
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Patent number: 9140640Abstract: A method for determining and identifying corrosion protective layers that provide corrosion protection against crude oils and crude oil fractions is disclosed. The method identifies naturally occurring constituents in crude oils that indirectly provide corrosion protection. A method assessing the potential of these constituents is also disclosed. The method includes exposing metal coupons with the crude oil or crude fraction of interest at the expected operating temperature of concern. The corrosion potential assessment further analyzes the exposed coupons with transmission electron microscopy and an additional high temperature exposure that challenges the tenacity of the protection offered by the corrosion protective layer.Type: GrantFiled: November 4, 2013Date of Patent: September 22, 2015Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: H. Alan Wolf, Fang Cao, Saul C. Blum, Alan M. Schilowitz, Shiun Ling, James E. McLaughlin, Srdan Nesic, Peng Jin, Gheorghe Bota
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Patent number: 8932534Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, said apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of no less than 2060° C. and which remains in oxide form when exposed to a gas having carbon partial pressure of 10?22 bar and oxygen partial pressure of 10?10 bar, at a temperature of 1200° C.; wherein said refractory material has no less than 4 vol % formed porosity, measured at 20° C., based upon the bulk volume of said refractory material. In another embodiment, the refractory material has total porosity in the range of from 4 to 60 vol %.Type: GrantFiled: November 20, 2009Date of Patent: January 13, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: ChangMin Chun, Frank Hershkowitz, Paul F. Keusenkothen, Shiun Ling, Gary David Mohr
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Publication number: 20140332445Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
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Patent number: 8821806Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: GrantFiled: May 3, 2010Date of Patent: September 2, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary David Mohr
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Publication number: 20140134743Abstract: A method for determining and identifying corrosion protective layers that provide corrosion protection against crude oils and crude oil fractions is disclosed. The method identifies naturally occurring constituents in crude oils that indirectly provide corrosion protection. A method assessing the potential of these constituents is also disclosed. The method includes exposing metal coupons with the crude oil or crude fraction of interest at the expected operating temperature of concern. The corrosion potential assessment further analyzes the exposed coupons with transmission electron microscopy and an additional high temperature exposure that challenges the tenacity of the protection offered by the corrosion protective layer.Type: ApplicationFiled: November 4, 2013Publication date: May 15, 2014Applicants: THE OHIO UNIVERSITY, EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: H. Alan WOLF, Fang CAO, Saul C. BLUM, Alan M. SCHILOWITZ, Shiun LING, James E. McLAUGHLIN, Srdan NESIC, Peng JIN, Gheorghe BOTA
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Patent number: 8691030Abstract: The present application describes a steel composition that provides enhanced corrosion resistance. This steel composition includes one of vanadium in an amount of 1 wt % to 9 wt %, titanium in an amount of about 1 wt % to 9 wt %, and a combination of vanadium and titanium in an amount of 1 wt % to about 9 wt %. In addition, the steel composition includes carbon in an amount of 0.03 wt % to about 0.45 wt %, manganese in an amount up to 2 wt % and silicon in an amount up to 0.45 wt %. In one embodiment, the steel composition includes a microstructure of one of the following: ferrite, martensite, tempered martensite, dual phase ferrite and martensite, and dual phase ferrite and tempered martensite. Further, the present application describes a method for processing the steel composition and use of equipment such as oil country tubular goods, fabricated with the steel composition.Type: GrantFiled: May 2, 2008Date of Patent: April 8, 2014Assignee: ExxonMobil Upstream Research CompanyInventors: Dylan V. Pugh, Joseph C. Bondos, Shiun Ling, Raghavan Ayer, Shalawn K. Jackson, Jayoung Koo, Swarupa S. Bangaru