US 12,110,459 B2
Process for producing diesel fuel from a biorenewable feed with recycled sulfur
David A. Wegerer, Lisle, IL (US); James T. Wexler, Wheaton, IL (US); Xin X. Zhu, Long Gove, IL (US); Donald Eizenga, Elk Grove Village, IL (US); Rafael Alcala, Des Plaines, IL (US); Ashish Mathur, Gurugram (IN); Gautam Pandey, Gurugram (IN); and Hari S. Bajpai, Gurgaon (IN)
Assigned to UOP LLC, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Sep. 2, 2021, as Appl. No. 17/465,406.
Claims priority of provisional application 63/090,057, filed on Oct. 9, 2020.
Prior Publication US 2022/0112430 A1, Apr. 14, 2022
Int. Cl. C10G 3/00 (2006.01); C10L 1/08 (2006.01)
CPC C10G 3/52 (2013.01) [C10L 1/08 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/1051 (2013.01); C10G 2300/202 (2013.01); C10G 2300/4081 (2013.01); C10G 2300/42 (2013.01); C10G 2400/04 (2013.01); C10L 2200/043 (2013.01); C10L 2200/0446 (2013.01); C10L 2200/0484 (2013.01); C10L 2270/026 (2013.01); C10L 2270/04 (2013.01); C10L 2290/12 (2013.01); C10L 2290/541 (2013.01); C10L 2290/542 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A process for hydrotreating a biorenewable feedstock, the process comprising:
injecting sulfur to a feed stream comprising a biorenewable feedstock and passing the feed stream comprising the biorenewable feedstock with injected sulfur to a hydrotreating reactor section;
hydrotreating said feed stream comprising said biorenewable feedstock in the hydrotreating reactor section in presence of a hydrotreating hydrogen stream comprising at least 50 wppm hydrogen sulfide and a hydrotreating catalyst to hydrodeoxygenate the feed stream to provide a hydrotreated stream;
separating said hydrotreated stream into a hydrotreated liquid stream and a hydrotreated gas stream comprising hydrogen, carbon dioxide and hydrogen sulfide;
splitting said hydrotreated gas stream into a recycle gas stream and a purge gas stream;
purifying the purge gas stream in a purification unit with a solid media to remove impurities from said purge gas stream to provide a contacted purified gas stream; and
mixing said contacted purified gas stream with said recycle gas stream to provide said hydrotreating hydrogen stream.