Combined Effects of Hydrogen Sulfide, Water, and Ammonia on Liquid-Phase Hydrodenitrogenation of Quinoline

Selahattin Gültekin; Mohammad Khaleeq; Muhammad A. Al-saleh

doi:10.1021/ie00090a014

Combined Effects of Hydrogen Sulfide, Water, and Ammonia on Liquid-Phase Hydrodenitrogenation of Quinoline

Selahattin Gültekin^*, Mohammad Khaleeq, Muhammad A. Al-saleh

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The combined effects of H₂S, H₂0, and NH₃on liquid-phase hydrodenitrogenation (HDN) of quinoline in a batch slurry reactor were studied using presulfided commerical Ni-Mo/γ-Al₂0₃catalyst, at 7.0 MPa and 330, 350, and 375 °C. The overall and individual rate constants were determined, and the product distributions, obtained through kinetic modeling, were compared with the experimental data. The kinetics of the overall HDN of quinoline were found to be 0.8 order with respect to total nitrogen concentration, whereas individual rates were first order. Both qualitative and quantitative effects of H₂S, H₂0, and NH₃on the HDN of quinoline were presented. The presence of H₂S alone enhanced the overall HDN rate significantly. H₂0, as such, enhanced the overall HDN to some extent; however, the effect of H₂S was dominant when H₂S and H₂0 were together. NH₃alone did not show any effect. No effect on the HDN of quinoline was found in the presence of H₂S and NH₃together. The combined effects of H₂S, H₂0, and NH₃have resulted in a decrease in hydrogenation steps, but an enhancement in hydrogenolysis steps. The net effect was an increase in the overall HDN rate.

Original language	English
Pages (from-to)	729-738
Number of pages	10
Journal	Industrial and Engineering Chemistry Research
Volume	28
Issue number	6
DOIs	https://doi.org/10.1021/ie00090a014
State	Published - 1 Jun 1989

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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@article{18b40f4dc24948ac80c3cc6f4b5c9f71,

title = "Combined Effects of Hydrogen Sulfide, Water, and Ammonia on Liquid-Phase Hydrodenitrogenation of Quinoline",

abstract = "The combined effects of H2S, H20, and NH3on liquid-phase hydrodenitrogenation (HDN) of quinoline in a batch slurry reactor were studied using presulfided commerical Ni-Mo/γ-Al203catalyst, at 7.0 MPa and 330, 350, and 375 °C. The overall and individual rate constants were determined, and the product distributions, obtained through kinetic modeling, were compared with the experimental data. The kinetics of the overall HDN of quinoline were found to be 0.8 order with respect to total nitrogen concentration, whereas individual rates were first order. Both qualitative and quantitative effects of H2S, H20, and NH3on the HDN of quinoline were presented. The presence of H2S alone enhanced the overall HDN rate significantly. H20, as such, enhanced the overall HDN to some extent; however, the effect of H2S was dominant when H2S and H20 were together. NH3alone did not show any effect. No effect on the HDN of quinoline was found in the presence of H2S and NH3together. The combined effects of H2S, H20, and NH3have resulted in a decrease in hydrogenation steps, but an enhancement in hydrogenolysis steps. The net effect was an increase in the overall HDN rate.",

author = "Selahattin G{\"u}ltekin and Mohammad Khaleeq and Al-saleh, {Muhammad A.}",

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T1 - Combined Effects of Hydrogen Sulfide, Water, and Ammonia on Liquid-Phase Hydrodenitrogenation of Quinoline

AU - Gültekin, Selahattin

AU - Khaleeq, Mohammad

AU - Al-saleh, Muhammad A.

PY - 1989/6/1

Y1 - 1989/6/1

N2 - The combined effects of H2S, H20, and NH3on liquid-phase hydrodenitrogenation (HDN) of quinoline in a batch slurry reactor were studied using presulfided commerical Ni-Mo/γ-Al203catalyst, at 7.0 MPa and 330, 350, and 375 °C. The overall and individual rate constants were determined, and the product distributions, obtained through kinetic modeling, were compared with the experimental data. The kinetics of the overall HDN of quinoline were found to be 0.8 order with respect to total nitrogen concentration, whereas individual rates were first order. Both qualitative and quantitative effects of H2S, H20, and NH3on the HDN of quinoline were presented. The presence of H2S alone enhanced the overall HDN rate significantly. H20, as such, enhanced the overall HDN to some extent; however, the effect of H2S was dominant when H2S and H20 were together. NH3alone did not show any effect. No effect on the HDN of quinoline was found in the presence of H2S and NH3together. The combined effects of H2S, H20, and NH3have resulted in a decrease in hydrogenation steps, but an enhancement in hydrogenolysis steps. The net effect was an increase in the overall HDN rate.

AB - The combined effects of H2S, H20, and NH3on liquid-phase hydrodenitrogenation (HDN) of quinoline in a batch slurry reactor were studied using presulfided commerical Ni-Mo/γ-Al203catalyst, at 7.0 MPa and 330, 350, and 375 °C. The overall and individual rate constants were determined, and the product distributions, obtained through kinetic modeling, were compared with the experimental data. The kinetics of the overall HDN of quinoline were found to be 0.8 order with respect to total nitrogen concentration, whereas individual rates were first order. Both qualitative and quantitative effects of H2S, H20, and NH3on the HDN of quinoline were presented. The presence of H2S alone enhanced the overall HDN rate significantly. H20, as such, enhanced the overall HDN to some extent; however, the effect of H2S was dominant when H2S and H20 were together. NH3alone did not show any effect. No effect on the HDN of quinoline was found in the presence of H2S and NH3together. The combined effects of H2S, H20, and NH3have resulted in a decrease in hydrogenation steps, but an enhancement in hydrogenolysis steps. The net effect was an increase in the overall HDN rate.

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DO - 10.1021/ie00090a014

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JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

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ER -

Combined Effects of Hydrogen Sulfide, Water, and Ammonia on Liquid-Phase Hydrodenitrogenation of Quinoline

Abstract

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