US 12,084,622 B2
Methods for converting C2+ olefins to higher number olefins useful in producing isoparaffinic kerosene compositions
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 Aug. 16, 2022, as Appl. No. 17/820,152.
Claims priority of provisional application 63/362,566, filed on Apr. 6, 2022.
Claims priority of provisional application 63/362,565, filed on Apr. 6, 2022.
Prior Publication US 2022/0396741 A1, Dec. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. 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); C10G 69/12 (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)] 19 Claims
OG exemplary drawing
 
1. A method for producing a blended jet boiling range composition stream comprising:
oligomerizing an ethylene stream to a C4+ olefin stream in a first olefin oligomerization unit comprising a serial reactor and a lights removal column, wherein the C4+ olefin stream contains no greater than 10 wt % of methane, ethylene, and ethane combined;
wherein the ethylene stream contains at least 50 wt % ethylene, at least 2000 wppm ethane, no greater than 1000 wppm of methane, and no greater than 20 wppm each of carbon monoxide and hydrogen;
oligomerizing the C4+ olefin stream and a propylene/C4+ olefin stream in a second oligomerization unit to produce an isoolefinic stream;
subjecting at least a portion of the isoolefinic stream to a hydroprocessing process with hydrogen as treat gas to produce an isoparaffinic stream having no greater than 10 wt % olefin content; and
using at least a portion of the isoparaffinic stream to create the blended jet boiling range composition comprising:
30 vol % to 99 vol % of an isoparaffinic blend component sourced from the isoparaffinic stream containing 80 wt % or more of isoparaffins, 5.0 wt % or less of olefins, and 5.0 wt % or less of C19+ hydrocarbons;
1.0 vol % to 70 vol % of a mineral jet boiling range fraction; and
a T10 distillation point of 205° C. or less, a final boiling point of 300° C. or less, a freeze point of −40° ° C. or lower, and 2.0 wt % or more of C17-C18 hydrocarbons.