US 11,746,020 B2
Sulfur-doped porous carbon derived from heavy hydrocarbons and methods for production thereof
Yi Du, Coopersburg, PA (US); Bradley D. Wooler, Allentown, PA (US); Stuart E. Smith, Easton, PA (US); Brenda A. Raich, Annandale, NJ (US); Clarence Chase, Bensalem, PA (US); and Lesheng Wang, Greenbrook, NJ (US)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by ExxonMobil Technology and Engineering Company, Annandale, NJ (US)
Filed on Jan. 24, 2020, as Appl. No. 16/751,945.
Claims priority of provisional application 62/820,982, filed on Mar. 20, 2019.
Prior Publication US 2020/0299141 A1, Sep. 24, 2020
Int. Cl. C01B 32/33 (2017.01); C01B 32/354 (2017.01)
CPC C01B 32/354 (2017.08) [C01B 32/33 (2017.08); C01B 2210/0051 (2013.01); C01P 2006/12 (2013.01)] 15 Claims
 
1. Sulfur-doped porous carbon comprising:
a crosslinked, pyrolyzed reaction product of a heavy hydrocarbon product, sulfur, and a hydroxide base, the heavy hydrocarbon product comprising a plurality of olefin moieties, wherein the heavy hydrocarbon product has a boiling point range from about 200° C. to about 600° C.;
wherein the crosslinked, pyrolyzed reaction product has a BET surface area ranging from about 750 m2/g to about 3000 m2/g;
wherein a sulfur content of the crosslinked, pyrolyzed reaction product ranges from about 2 wt. % to about 10 wt. %; and
wherein at least a portion of the plurality of olefin moieties are crosslinked with the sulfur or a polymerized form thereof in the crosslinked, pyrolyzed reaction product; and wherein the heavy hydrocarbon product comprises one or more trace metals that remain as a plurality of trace metal inclusions in the crosslinked, pyrolyzed reaction product.