Catalytic hydrodeoxygenation. II. Interactions between catalytic hydrodeoxygenation of m-cresol and hydrodesulfurization of benzothiophene and dibenzothiophene

Journal Article · Tue Mar 01 00:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1002/chin.198325091· OSTI ID:5237555

Odebunmi, E O; Ollis, D F

Interactions during simultaneous catalytic hydrodesulfurization (HDS) and hydrodeoxygenation (HDO) are studied with (benzothiophene, dibenzothiophene)/(m-cresol) conversions over CoMo HDS catalysts. The mutual inhibition of cresol on HDS and of the benzothiophenes on HDO is shown. The reaction patterns observed are rationalized by competition between oxygenate and sulfur heterocycle for the catalyst sites. A Langmuir-Hinshelwood kinetic form provides a useful rate equation for simultaneous HDO-HDS operation. The relative reactivity in equimolar feed experiments is benzothiophene > dibenzothiophene > m-cresol. The modest reactivity of m-cresol, coupled with its inhibitory influence of HDS of benzothiophene and dibenzothiophene, has clear implications for HDS in coal liquids processing and HDN in shale oil conversions. In the mixed feeds of the present paper (II), as for the pure oxigenate feeds studied previously (I), no evidence is obtained that ring saturation of cresol is required prior to HDO.

• Research Organization: Univ. of California, Davis
• OSTI ID: 5237555
• Journal Information: J. Catal.; (United States), Vol. 80:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CRESOLS
CHEMICAL REACTIONS
DESULFURIZATION
CATALYSTS
HYDROGENATION
THIOPHENE
CATALYSIS
COBALT
INHIBITION
MOLYBDENUM
AROMATICS
ELEMENTS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
METALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENOLS
TRANSITION ELEMENTS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)