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公开(公告)号：US20230416949A1
公开(公告)日：2023-12-28
申请号：US18249492
申请日：2021-11-10
Inventor： Stuart E. Smith , William M. Ferry , Kazem V. Edmond , Manesh Gopinadhan , Nicolas J. Alvarez , Heedong Yoon , Clarence E. Chase , Daniel J. Ryan
CPC classification number: D01F9/145 , D10B2101/12 , D01F9/322
Abstract: Pitch compositions suitable for spinning may comprise: a pitch having a softening point (SP) below 400° C. and is capable of achieving a radial Hencky strain prior to break of about 0.7 to about 10, at spinning temperature (Ts) ranging from about SP−30° C. to about SP+80° C. Methods for producing a carbon fiber from a pitch composition at a temperature within a spinning temperature (Ts) range may comprise determining a temperature range wherein the maximum radial Hencky strain (εR) lies above a minimum process radial Hencky strain, and wherein the minimum process radial Hencky strain is within a range of about 0.7 to about 10. The spinning temperature (Ts) range may be determined by measuring a maximum radial Hencky strain (εR) prior to break at a series of different temperatures and strain rates. Carbon fiber composites may comprise of the said carbon fiber.
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Patent Agency Ranking
2.发明授权公开(公告)号：US11746020B2
公开(公告)日：2023-09-05
申请号：US16751945
申请日：2020-01-24
Inventor： Yi Du , Bradley D. Wooler , Stuart E. Smith , Brenda A. Raich , Clarence Chase , Lesheng Wang
IPC: C01B32/33 , C01B32/354
CPC classification number: C01B32/354 , C01B32/33 , C01B2210/0051 , C01P2006/12
Abstract: Sulfur-crosslinked olefins, particularly sulfur-crosslinked heavy hydrocarbon products having one or more sulfur-crosslinked olefin moieties, may undergo pyrolysis to form sulfur-doped porous carbon having high BET surface area values. Pyrolysis to form the sulfur-doped porous carbon may be particularly efficacious in the presence of a hydroxide base. BET surface areas up to 2000 m2/g or even higher may be obtained. Such sulfur-doped porous carbon may be prepared by combining a heavy hydrocarbon product with sulfur, heating to a first temperature state to form a liquefied reaction mixture containing a sulfur-crosslinked heavy hydrocarbon, homogeneously mixing a hydroxide base with the liquefied reaction mixture, and pyrolyzing the sulfur-crosslinked heavy hydrocarbon to form sulfur-doped porous carbon.
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公开(公告)号：US20250019591A1
公开(公告)日：2025-01-16
申请号：US18708893
申请日：2022-09-14
Inventor： Stuart E. Smith , Gaurav Agrawal , Mustafa Al-Sabawi , David T. Ferrughelli
Abstract: Processes comprising: heat treating a heavy hydrocarbon feedstock in a heat treatment unit to produce a first effluent comprising a heat treated product; at least partially removing a mixture of gas and distillate from the first effluent in a first separation unit to produce a second effluent comprising a separation bottom product; deasphalting the second effluent in a second separation unit in the presence of a first solvent to produce: a soluble product fraction comprising a first portion of the first solvent, a deasphalted oil (DAO) product, and a first pitch product; an insoluble product fraction comprising a second portion of the first solvent and a portion of the first pitch product; and at least partially removing the second portion of the first solvent from the first pitch product in a third separation unit to produce a purified pitch product.
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4.发明公开公开(公告)号：US20240068132A1
公开(公告)日：2024-02-29
申请号：US18269882
申请日：2021-11-10
Inventor： Manesh Gopinadhan , Stuart E. Smith , Nicole M. Callen , Clarence E. Chase , Kazem V. Edmond , Srinivasan Rajagopalan , Eric B. Sirota , Daniel J. Ryan
Abstract: Nucleation enhancement and/or growth rate improvement of mesophase in pitch compositions derived from hydrocarbon feedstocks can be achieved by: reacting in a reaction zone a blend comprising an isotropic feed and a seeding agent, to produce a reacted pitch having a mesophase content of about 10 vol % to 100 vol %, based on the total volume of the reacted pitch, and a softening point (Tsp) below 400° C.; wherein the seeding agent is about 50 wt % or less, based on the total weight of the blend; wherein the seeding agent has a mesophase content of about 0.01 vol % to 100 vol %, based on the total volume of the seeding agent.
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公开(公告)号：US20240003063A1
公开(公告)日：2024-01-04
申请号：US18038410
申请日：2021-11-10
Inventor： Stuart E. Smith , Madhavi Vadlamudi , Clarence E. Chase , Robert Panepinto
Abstract: A pitch composition suitable for spinning may comprise: a pitch having a softening point temperature (Tsp) of 400° C. or less, and an oxidation onset temperature (OOT) at least 10° C. below the Tsp at a ramp rate of 10° C./min. A carbon fiber may comprise: a carbon fiber produced from a pitch composition, wherein the pitch composition comprises: a pitch having a softening point temperature (Tsp) of 400° C. or less, and an oxidation onset temperature (OOT) at least 10° C. below the Tsp at a ramp rate of 10° C./min.
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公开(公告)号：US20250023045A1
公开(公告)日：2025-01-16
申请号：US18349227
申请日：2023-07-10
Applicant: ExxonMobil Technology and Engineering Company , The Trustees of the University Of Pennsylvania
Inventor： Manesh Gopinadhan , Stuart E. Smith , Eric B. Sirota , Bharath Natarajan , Chinedum O. Osuji , Yuma Morimitsu , Kazem V. Edmond
IPC: H01M4/583 , H01M4/62 , H01M10/0525
Abstract: Disclosed embodiments may include a material having a composition including a mesophase pitch material between approximately 5.0% to 95.0% and having a viscosity of between approximately 0.01 to 102 Pascal seconds (Pa·s) in a temperature range of between approximately Ts
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