	US 12,338,211 B2
	Recycle content (C₄)alkanal
David Eugene Slivensky, Tatum, TX (US); Kenny Randolph Parker, Afton, TN (US); William Lewis Trapp, Kingsport, TN (US); Daryl Bitting, Longview, TX (US); Michael Gary Polasek, Longview, TX (US); and Xianchun Wu, Longview, TX (US)
Assigned to Eastman Chemical Company, Kingsport, TN (US)
Appl. No. 17/597,822
Filed by Eastman Chemical Company, Kingsport, TN (US)
PCT Filed Jul. 29, 2020, PCT No. PCT/US2020/043944 § 371(c)(1), (2) Date Jan. 25, 2022, PCT Pub. No. WO2021/021847, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/879,728, filed on Jul. 29, 2019.
Prior Publication US 2022/0281793 A1, Sep. 8, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 4/06 (2006.01); C07C 45/50 (2006.01)

CPC C07C 45/505 (2013.01)

18 Claims

1. A method of making recycle (C₄)alkanal (r-(C₄)alkanal), said method comprising hydroformylating a recycle propylene composition (r-propylene) to thereby produce a hydroformylation effluent comprising (C₄)alkanal, wherein said r-propylene is derived directly or indirectly from cracking a cracker feed stream comprising (i) at least 1 and not more than 40 weight percent of a recycle pyoil composition (r-pyoil), along with (ii) at least 60 weight percent of a non-recycle cracker feed chosen from propane, ethane, and/or natural gasoline; wherein said r-pyoil has a C₈+ content of at least 35 weight percent, based on the total weight of said r-pyoil; and wherein said r-pyoil comprises not more than about 30 weight percent total aromatics, based on the total weight of said r-pyoil.