Study of the simultaneous catalytic hydrogenation of pyridine and hydrodesulfurization of thiophene

Journal Article · Mon Dec 31 23:00:00 EST 1979 · Ind. Eng. Chem. Process Des. Dev.; (United States)

DOI:https://doi.org/10.1021/i260073a027· OSTI ID:5508294

Satterfield, C N; Modell, M; Wilkens, J A

The study of the simultaneous catalytic hydrogenation of pyridine and hydrosulfurization of thiophene, model compounds representing sulfur and nitrogen content in oil shale and coal-derived liquid fuels was extended to higher, industrially relevant pressures, up to 7 MPa. The reactions were carried out in a continuous plug-flow microreactor at 200 to 400C and thiophene and pyridine partial pressures of 12.4 kPa each, over a commercial 3.1% by wt NiO/15% MoO/sub 3//Al/sub 2/O/sub 3/ catalyst. Thiophene hydrodesulfurization was inhibited by pyridine under all the conditions studied. In the absence of thiophene, pyridine reached a thermodynamic equilibrium with piperidine above 350C at all pressures studied (1.1 4 to 7 MPa), but this equilibrium was not reached in the presence of thiophene because of the inhibition of pyridine hydrogenation and enhancement of piperidine hydrogenolysis. The combined conversion of pyridine plus piperidine, i.e., the over-all rate of hydrodenitrification, was enhanced by thiophene at > 300C and > 3.55 MPa.

• Research Organization: Massachusetts Inst. of Technology
• OSTI ID: 5508294
• Journal Information: Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 19:1; ISSN IEPDA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
04 OIL SHALES AND TAR SANDS
040404 -- Oil Shales & Tar Sands-- Purification
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMINES
AZINES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUIDS
DENITRIFICATION
DESULFURIZATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROGENATION
INHIBITION
KINETICS
LIQUIDS
MATERIALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NICKEL COMPOUNDS
NICKEL OXIDES
OIL SHALES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PIPERIDINES
PYRIDINE
PYRIDINES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
THIOPHENE
TRANSITION ELEMENT COMPOUNDS