On the effect of reaction conditions on liquid phase sulfiding of a NiMo HDS catalyst

G. Marroquín, J. Ancheyta, J. A.I. Díaz

Research output: Contribution to conferencePaper

29 Citations (Scopus)

Abstract

Various experimental tests were conducted in a fixed-bed pilot plant in order to study the liquid phase sulfiding of a NiMo commercial catalyst. Four sulfiding feeds were employed in the present work: SRGO, SRGO + 1 wt.% sulfur DMDS, HDS-SRGO + 1 wt.% sulfur DMDS, and HDS-SRGO + 1.7 wt.% sulfur DMDS. Three sulfiding temperatures were evaluated: 290, 320, and 350°C. Drying and soaking of the catalyst were carried out before presulfiding. Each sulfided catalyst was evaluated in the hydrotreating of SRGO at the following conditions: 54 kg/cm2 pressure, 2.0 h-1 LHSV, 2000 ft3/bbl H2-to-oil ratio, and temperature of 340-380°C. SRGO + 1 wt.% sulfur DMDS was the best sulfiding feed. The catalyst sulfided at high temperature exhibited better activity. It was found that about 50% of the carbon on the catalyst after reaction is deposited during sulfiding step. © 2004 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages75-81
Number of pages66
DOIs
StatePublished - 24 Nov 2004
Externally publishedYes
EventCatalysis Today -
Duration: 24 Nov 2004 → …

Conference

ConferenceCatalysis Today
Period24/11/04 → …

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Sulfur
Temperature
Oils
Carbon
Pressure

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Marroquín, G. ; Ancheyta, J. ; Díaz, J. A.I. / On the effect of reaction conditions on liquid phase sulfiding of a NiMo HDS catalyst. Paper presented at Catalysis Today, .66 p.
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On the effect of reaction conditions on liquid phase sulfiding of a NiMo HDS catalyst. / Marroquín, G.; Ancheyta, J.; Díaz, J. A.I.

2004. 75-81 Paper presented at Catalysis Today, .

Research output: Contribution to conferencePaper

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AB - Various experimental tests were conducted in a fixed-bed pilot plant in order to study the liquid phase sulfiding of a NiMo commercial catalyst. Four sulfiding feeds were employed in the present work: SRGO, SRGO + 1 wt.% sulfur DMDS, HDS-SRGO + 1 wt.% sulfur DMDS, and HDS-SRGO + 1.7 wt.% sulfur DMDS. Three sulfiding temperatures were evaluated: 290, 320, and 350°C. Drying and soaking of the catalyst were carried out before presulfiding. Each sulfided catalyst was evaluated in the hydrotreating of SRGO at the following conditions: 54 kg/cm2 pressure, 2.0 h-1 LHSV, 2000 ft3/bbl H2-to-oil ratio, and temperature of 340-380°C. SRGO + 1 wt.% sulfur DMDS was the best sulfiding feed. The catalyst sulfided at high temperature exhibited better activity. It was found that about 50% of the carbon on the catalyst after reaction is deposited during sulfiding step. © 2004 Elsevier B.V. All rights reserved.

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