Life cycle of hydroprocessing catalysts and total catalyst management

Eijsbouts, S.

doi:10.1016/s0167-2991(99)80391-7

Cited by 40 publications

(13 citation statements)

References 85 publications

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“…Driven by increasingly strict environmental requirements, the production of high-quality low sulfur fuels has become an urgent task [1][2][3]. To date, hydrodesulfurization (HDS) has been a general industrial technology for fuel oil desulfurization.…”

Section: Introductionmentioning

confidence: 99%

Complete Hydrodesulfurization of Dibenzothiophene via Direct Desulfurization Pathway over Mesoporous TiO2-Supported NiMo Catalyst Incorporated with Potassium

Song²,

Yue

et al. 2019

Catalysts

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Mesoporous TiO2 containing different potassium content was prepared from potassium titanate by mediating the pH value of the ion exchange, which was used as catalytic support to load NiMo for hydrodesulfurization of dibenzothiophene. The as-prepared samples were characterized by X-ray diffraction, N2 physical adsorption/desorption, temperature-programmed reduction, scanning electron microscope/energy dispersive X-ray mapping analysis, high resolution transmission electron microscopy, and pyridine-adsorbed Fourier transform infrared spectroscopy. The characterization results showed that NiO and MoO3 were well dispersed on mesoporous TiO2 with varying potassium content. A crystal NiMoO4 phase was formed on the TiO2 with relatively high potassium content, which could decrease the reduction temperature of oxidized active species. The evaluation results from the hydrodesulfurization displayed that as the potassium content of the catalyst increased, the dibenzothiophene conversion firstly increased and then slightly decreased when potassium content exceeded 6.41 wt %. By contrast, the direct desulfurization selectivity could continuously increase along with the potassium content of catalyst. Furthermore, the change in direct desulfurization selectivity of a TiO2-supported NiMo catalyst was independent of the reaction condition. The mesoporous TiO2-supported NiMo catalyst incorporated with potassium could have near both 100% of dibenzothiophene and 100% of direct desulfurization selectivity. According to the structure–performance relationship discussion, the incorporation of potassium species could benefit the formation of more sulfided active species on mesoporous TiO2. Moreover, excessive free potassium species may poison the active sites of the hydrogenation pathway. Both factors determined the characteristics of complete hydrodesulfurization of dibenzothiophene via a direct desulfurization pathway for potassium-incorporated mesoporous TiO2 supported NiMo catalysts.

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Section: Introductionmentioning

confidence: 99%

Complete Hydrodesulfurization of Dibenzothiophene via Direct Desulfurization Pathway over Mesoporous TiO2-Supported NiMo Catalyst Incorporated with Potassium

Song²,

Yue

et al. 2019

Catalysts

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“…CoMo and NiMo) is a widely applied process in hydrotreatment and hydrocracking of oil fractions [1][2][3][4][5][6]. Among others, it has been stated [6] that the amount and position of Ni and Co atoms on the surface of the sulfided NiMo and CoMo catalysts affect their catalytic behavior substantially.…”

Section: Introductionmentioning

confidence: 99%

Promoter effect of nickel in thiophene hydrodesulfurization as monitored by sulfur uptake and cyclohexane conversion

Tétényi

Schnörch

Tellinger

2009

React Kinet Catal Lett

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Hydrodesulfurization (HDS) activity and activation energy (e 0 TH ) values were determined and compared with irreversible sulfur uptake (S irr ) by 5 Al 2 O 3 -supported (MoO x , Ni and three NiMoO x ) catalysts and, in unsulfided form with the cyclohexane conversion activity. Synergy between Ni and Mo in catalytic activity and a correlation between HDS activity and the amounts of S irr was found. Some explanations for the differences in catalytic behavior of the different samples are presented.

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“…Figure 3.9 illustrates the diffi culty in establishing the inventory for processes based on catalysts (Eijsbouts et al , 2008). The impact on manufacturing fresh catalyst needs to be included where there are major issues concerning items such as mining, purifi cation and/or synthesis and related energy-intensive process issues, including process energy needs, transportation and environmental impact related to this cycle.…”

Section: Liquid Fuel Conversion Processesmentioning

confidence: 99%

“…A major issue discussed in literature is the impact of liquid fuel conversion of biomass where the conversion technology is based on fossil fuel-derived reactants 3.9 Total catalyst management (TCM) full service cycle (Eijsbouts et al , 2008). Carefl ex is a customised service providing technical support to the users of the DMDS catalyst.…”

Section: Liquid Fuel Conversion Processesmentioning

confidence: 99%

Life cycle assessment (LCA) of alternative hydrocarbon fuel conversion

Andrésen

2011

Advances in Clean Hydrocarbon Fuel Processing

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Life cycle of hydroprocessing catalysts and total catalyst management

Cited by 40 publications

References 85 publications

Complete Hydrodesulfurization of Dibenzothiophene via Direct Desulfurization Pathway over Mesoporous TiO2-Supported NiMo Catalyst Incorporated with Potassium

Complete Hydrodesulfurization of Dibenzothiophene via Direct Desulfurization Pathway over Mesoporous TiO2-Supported NiMo Catalyst Incorporated with Potassium

Promoter effect of nickel in thiophene hydrodesulfurization as monitored by sulfur uptake and cyclohexane conversion

Life cycle assessment (LCA) of alternative hydrocarbon fuel conversion

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