Mesoporous-molecular-sieve-supported nickel sorbents for adsorptive desulfurization of commercial ultra-low-sulfur diesel fuel

Air‐Promoted Adsorptive Desulfurization over Ti0.9Ce0.1O2 Mixed Oxides from Diesel Fuel under Ambient Conditions

“…Commercial diesel with a total sulfur content of 14.5 ppmw was obtained from British Petroleum (BP), with the composition as described in our earlier paper. [7] The ADS performance of the sorbents was evaluated in a fixed-bed flow-adsorption system with a stainless-steel column (I.D. : 4.6 mm, length: 75 mm).…”

“…Another approach, adsorptive desulfurization (ADS), provides a promising path for decreasing the sulfur content to less than 1 ppmw under ambient or mild conditions without the use of H 2 . To date, several attempts have been made to develop adsorbents for the desulfurization of liquid fuels, including pcomplexation sorbents, [4] immobilized p-acceptor sorbents, [5] metal-organic frameworks (MOFs), [6] Ni-based sorbents, [7] graphene and oxygen-functionalized carbon sorbents, [8] and softacid-supported sorbents.[9] However, all of these sorbents have drawbacks for the selective ADS from current commercial diesel fuel for the production of ultra-clean fuel under ambient conditions. These challenges include: 1) weak adsorption affinity, owing to steric hindrance of the refractory alkylated sulfur compounds, [10] and 2) poor adsorption selectivity, owing to competitive adsorption between trace amounts of sulfur compounds (< 15 ppmw) and relatively large amounts of polyaromatics (5-10 wt.…”

Synthesis of Al‐Containing Spherical Mesocellular Silica Foams with Different Pore Sizes and Their Applications as Catalyst Supports for Hydrodesulfurization of Dibenzothiophene

“…[3,4] To achieve the goal of low SO x emission levels, even highly refractory sulfur compounds such as dibenzothiophene (DBT) and alkyl-substituted dibenzothiophene derivatives must be desulfurized. [5,6] Hydrodesulfurization (HDS) is one of the most effective industrial processes for removing sulfur-containing compounds to obtain ultra-low-sulfur cleanerf uels. The keyt o the HDS process is the hydrotreatment catalyst.…”

Production of ultra-low-sulfur gasoline: An equilibrium and kinetic analysis on adsorption of sulfur compounds over Ni/MMS sorbents

“…Mesoporous silicas such as MCM-41 and SBA-15 supported nickel exhibited excellent adsorptive ability for desulfurization of commercial fuels due to high surface area and large pore volumes. Park et al [9] and Song et al [20] reported 20-30 wt% nickel supported on MCM-48 and SBA-15 sorbents presented the best breakthrough sulfur capacity for ultra-low-sulfur diesel compared to 55 wt%Ni/SiO 2 -Al 2 O 3 and Raney nickel.…”