US 10,889,769 B2
Manufacturing a base stock from ethanol
Guang Cao, Princeton, NJ (US); Suzzy C. Ho, Princeton, NJ (US); Matthew S. Ide, Doylestown, PA (US); Shifang Luo, Annandale, NJ (US); and William R. Gunther, Clinton, NJ (US)
Assigned to ExxonMobil Research and Engineering Company, Annandale, NJ (US)
Filed by Exxonmobil Research and Engineering Company, Annandale, NJ (US)
Filed on Aug. 15, 2019, as Appl. No. 16/541,288.
Claims priority of provisional application 62/721,142, filed on Aug. 22, 2018.
Prior Publication US 2020/0063041 A1, Feb. 27, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 63/02 (2006.01); C10G 35/095 (2006.01); C10G 50/02 (2006.01); B01J 31/22 (2006.01)
CPC C10G 63/02 (2013.01) [B01J 31/22 (2013.01); C10G 35/095 (2013.01); C10G 50/02 (2013.01); B01J 2531/842 (2013.01); C10G 2300/107 (2013.01); C10G 2300/1044 (2013.01); C10G 2300/1088 (2013.01); C10L 2200/0407 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for manufacturing a base stock from an ethanol stream, comprising:
dehydrating an ethanol stream to form an impure ethylene mixture;
recovering an ethylene stream from the impure ethylene mixture;
oligomerizing the ethylene stream to form a raw oligomer stream;
distilling an intermediate olefinic stream and a heavy olefinic stream from the raw oligomer stream;
subjecting the heavy olefinic stream to hydrodemetallation to form a first hydro-processed stream;
alkylating the intermediate olefinic stream to form an alkylated stream;
distilling the alkylated stream to form a lights stream and a heavies stream;
recycling the lights stream to the intermediate olefinic stream;
subjecting the first hydro-processed stream and the heavies stream to hydrocracking and/or hydroisomerization to form a second hydro-processed stream; and
distilling the second hydro-processed stream to form the base stock.