Molecular Characteristics of Catalytic Nitrogen Removal from Coal Tar Pitch over γ-Alumina-Supported NiMo and CoMo Catalysts.
FT-ICR MS
coal tar pitch
denitrogenation
hydrotreatment
Journal
International journal of molecular sciences
ISSN: 1422-0067
Titre abrégé: Int J Mol Sci
Pays: Switzerland
ID NLM: 101092791
Informations de publication
Date de publication:
22 Jul 2023
22 Jul 2023
Historique:
received:
07
06
2023
revised:
20
07
2023
accepted:
20
07
2023
medline:
31
7
2023
pubmed:
29
7
2023
entrez:
29
7
2023
Statut:
epublish
Résumé
The removal of nitrogen from coal tar pitch (CTP) through the hydrodenitrogenation (HDN) of CTP and its molecular behavior were evaluated in the presence of NiMo/γ-alumina and CoMo/γ-alumina catalysts. Fourier transform ion cyclotron resonance mass spectrometry with atmospheric pressure photoionization was used to analyze the complicated chemical classes and species of CTP and the treated products at the molecular level. Nitrogen species were qualitatively analyzed before and after hydrotreatment. A single-stage hydrotreatment with an HDN catalyst resulted in a high sulfur removal performance (85.6-94.7%) but a low nitrogen removal performance (26.8-29.2%). Based on relative abundance analyses of nitrogen and binary nitrogen species, C
Identifiants
pubmed: 37511556
pii: ijms241411793
doi: 10.3390/ijms241411793
pmc: PMC10380854
pii:
doi:
Substances chimiques
Coal Tar
8007-45-2
Nitrogen
N762921K75
Aluminum Oxide
LMI26O6933
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Références
J Mass Spectrom. 2007 Apr;42(4):419-27
pubmed: 17385793
Anal Chem. 2019 Nov 19;91(22):14268-14274
pubmed: 31613096
ACS Omega. 2020 Nov 11;5(46):29746-29754
pubmed: 33251410