Title:
SYSTEMS AND METHODS FOR MANUFACTURING CARBON FIBER FROM COAL
Document Type and Number:
WIPO Patent Application WO/2022/015769
Kind Code:
A3
Abstract:
Embodiments discloses herein relate to methods of processing coal. A method to process coal includes subjecting raw coal to a liquefaction process to form a pitch resin and refining the pitch resin to produce a mesophase pitch. The method further includes subjecting the mesophase pitch to a low crystallinity spinning process to form a raw fiber. The raw fiber is then further subjected to a stabilization process configured to oxygen cross-link the fiber to form a stabilized fiber and then subjecting the stabilized fiber to a carbonization process to form a carbon fiber.
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Inventors:
TARGETT MATTHEW (US)
ATKINS CHARLES AGEE (US)
YURCHICK CHRISTOPHER L (US)
ATKINS CHARLES AGEE (US)
YURCHICK CHRISTOPHER L (US)
Application Number:
PCT/US2021/041492
Publication Date:
February 24, 2022
Filing Date:
July 13, 2021
Export Citation:
Assignee:
RAMACO CARBON LLC (US)
International Classes:
D01F6/74; D01F6/60; D01F9/24
Foreign References:
| US20190194544A1 | 2019-06-27 | |||
| US20200167647A1 | 2020-05-28 | |||
| US20160272499A1 | 2016-09-22 | |||
| US20200299589A1 | 2020-09-24 |
Other References:
LI XIAO, TIAN XIAODONG, YANG TAO, HE YITING, LIU WENHONG, SONG YAN, LIU ZHANJUN: "Coal Liquefaction Residues Based Carbon Nanofibers Film Prepared by Electrospinning: An Effective Approach to Coal Waste Management", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMERICAN CHEMICAL SOCIETY, US, vol. 7, no. 6, 18 March 2019 (2019-03-18), US , pages 5742 - 5750, XP055908085, ISSN: 2168-0485, DOI: 10.1021/acssuschemeng.8b05210
Attorney, Agent or Firm:
PRATT, Bryan G. (US)
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