US 12,441,945 B2
Methods for converting C2+ olefins to higher carbon number olefins
Matthew J. Vincent, Kingwood, TX (US); and Keith H. Kuechler, Friendswood, TX (US)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Spring, TX (US)
Filed by EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed on May 2, 2024, as Appl. No. 18/653,431.
Application 18/653,431 is a continuation of application No. 17/820,147, filed on Aug. 16, 2022, granted, now 12,012,561.
Claims priority of provisional application 63/362,565, filed on Apr. 6, 2022.
Claims priority of provisional application 63/362,566, filed on Apr. 6, 2022.
Prior Publication US 2024/0287396 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 69/12 (2006.01); B01D 3/14 (2006.01); C07C 1/24 (2006.01); C07C 2/08 (2006.01); C07C 2/12 (2006.01); C07C 5/03 (2006.01); C07C 7/04 (2006.01); C07C 7/08 (2006.01); C10L 1/08 (2006.01)
CPC C10G 69/126 (2013.01) [B01D 3/14 (2013.01); B01D 3/143 (2013.01); C07C 1/24 (2013.01); C07C 2/08 (2013.01); C07C 2/12 (2013.01); C07C 5/03 (2013.01); C07C 7/04 (2013.01); C07C 7/08 (2013.01); C10L 1/08 (2013.01); C07C 2529/85 (2013.01); C07C 2529/89 (2013.01); C10G 2300/1092 (2013.01); C10G 2300/301 (2013.01); C10G 2400/08 (2013.01); C10L 2270/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for producing an isoolefinic stream comprising:
oligomerizing an ethylene stream to a C4+ olefin stream in a first olefin oligomerization unit comprising a reactor and a lights removal column, wherein the C4+ olefin stream contains no greater than 10 wt % of ethylene, and wherein the ethylene stream contains at least 50 wt % ethylene, at least 2000 wppm ethane and no greater than 1000 wppm of methane; and
oligomerizing the C4+ olefin stream and a propylene/C4+ olefin stream in a second oligomerization unit to produce the isoolefinic stream.