US 12,403,457 B2
Method for desulfurizing a hydrocarbon feedstock
Tawfik Abdo Saleh Awadh, Dhahran (SA); and Umar Cheche Abubakar, Dhahran (SA)
Assigned to King Fahd University of Petroleum and Minerals, Dhahran (SA)
Filed by King Fahd University of Petroleum and Minerals, Dhahran (SA)
Filed on Mar. 31, 2022, as Appl. No. 17/710,300.
Application 17/710,300 is a division of application No. 16/274,347, filed on Feb. 13, 2019, granted, now 11,325,107.
Prior Publication US 2022/0219149 A1, Jul. 14, 2022
Int. Cl. B01J 23/883 (2006.01); B01J 35/61 (2024.01); B01J 35/63 (2024.01); B01J 35/64 (2024.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); B01J 37/34 (2006.01); C10G 45/08 (2006.01); B01J 35/70 (2024.01)
CPC B01J 23/883 (2013.01) [B01J 35/615 (2024.01); B01J 35/617 (2024.01); B01J 35/633 (2024.01); B01J 35/635 (2024.01); B01J 35/638 (2024.01); B01J 35/647 (2024.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); B01J 37/343 (2013.01); C10G 45/08 (2013.01); B01J 35/70 (2024.01); B01J 2235/00 (2024.01); B01J 2235/10 (2024.01); B01J 2235/15 (2024.01); B01J 2235/30 (2024.01)] 12 Claims
OG exemplary drawing
 
1. A method for desulfurizing a hydrocarbon feedstock comprising a sulfur-containing compound, the method comprising:
contacting the hydrocarbon feedstock with a Ni/Mo hydrodesulfurization catalyst in the presence of H2 gas to convert at least a portion of the sulfur-containing compound into a mixture of H2S and a desulfurized product; and
removing the H2S from the mixture thereby forming a desulfurized hydrocarbon stream,
wherein:
the Ni/Mo hydrodesulfurization catalyst comprises nickel and molybdenum disposed on an activated carbon;
the Ni/Mo hydrodesulfurization catalyst has an activated carbon content in a range of 60-95% by weight, a Mo content of 4-20% by weight, each relative to a total weight of Ni/Mo hydrodesulfurization catalyst, and a Ni:Mo molar ratio of 1:10 to 1:2;
the Ni/Mo hydrodesulfurization catalyst is mesoporous with a BET surface area of 250-500 m2/g, an average pore diameter of 5.0-10 nm, and a pore volume of 0.2-3 cm3/g;
the Ni/Mo hydrodesulfurization catalyst is dispersed on the activated carbon using ethylenediaminetetraacetic acid (EDTA); and
a first-order rate constant kHDS of the Ni/Mo hydrodesulfurization catalyst toward dibenzothiophene (DBT) is higher than 6.15 s−1−1 catalyst.