US 12,241,176 B2
System and method for generating synthetic diamonds via atmospheric carbon capture
Ryan Shearman, New York, NY (US); Dan Wojno, New York, NY (US); and Anthony Ippolito, New York, NY (US)
Assigned to Impossible Diamond, Inc., New York, NY (US)
Filed by Impossible Diamond, Inc., New York, NY (US)
Filed on May 27, 2022, as Appl. No. 17/826,685.
Application 17/826,685 is a continuation of application No. 17/314,012, filed on May 6, 2021, granted, now 11,585,011.
Application 17/826,685 is a continuation of application No. 17/314,018, filed on May 6, 2021, granted, now 11,371,162.
Claims priority of provisional application 63/020,980, filed on May 6, 2020.
Prior Publication US 2022/0290325 A1, Sep. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C30B 29/04 (2006.01); C01B 32/25 (2017.01); C07C 1/12 (2006.01); C07C 7/144 (2006.01); C30B 25/00 (2006.01); C01B 32/50 (2017.01); C07C 1/02 (2006.01); E04H 1/12 (2006.01); G03B 15/00 (2021.01)
CPC C30B 29/04 (2013.01) [C01B 32/25 (2017.08); C07C 1/12 (2013.01); C07C 7/144 (2013.01); C30B 25/00 (2013.01); C01B 32/50 (2017.08); C01P 2006/80 (2013.01); C07C 1/02 (2013.01); E04H 1/12 (2013.01); G03B 15/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method comprising:
ingesting a first air sample, collected during an air capture period and defining a volume exceeding a threshold volume, to extract a first mixture comprising carbon dioxide and a first concentration of impurities comprising nitrogen;
conveying the first mixture through a first liquefaction unit configured to remove impurities from the first mixture to generate:
a first exhaust stream comprising impurities comprising nitrogen; and
a second mixture comprising carbon dioxide and a second concentration of impurities less than the first concentration of impurities;
in a methanation reactor, mixing the second mixture with a stream of hydrogen to generate a first hydrocarbon mixture comprising hydrocarbons and a third concentration of impurities comprising nitrogen, carbon dioxide, and hydrogen;
conveying the first hydrocarbon mixture through a second liquefaction unit configured to remove impurities from the second hydrocarbon mixture to generate:
a second exhaust stream comprising impurities; and
a second hydrocarbon mixture comprising hydrocarbons and a fourth concentration of impurities less than the third concentration of impurities; and
depositing the second hydrocarbon mixture in a diamond reactor containing a set of diamond seeds to generate a first set of diamonds via chemical vapor deposition.