Residuum hydrotreating/application of liquid - Solid chromatography for the study of hydrotreated products

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Fuel Sci. Technol. Int.; (United States)

DOI:https://doi.org/10.1080/08843758808915905· OSTI ID:6588749

Mohammed, A H.A.K.; Hankish, K; Abbas, K ^[1]

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1. Petroleum Research Centre, Council of Scientific Research, P.O. Box 10039, Jadiriyah, Baghdad (IQ)

Iraqi reduced crude (above 350/sup 0/C) was hydrotreated in a fixed-bed reactor with commercial Ni-Mo-alumina catalyst. Reaction temperature varied from 320 to 400/sup 0/C over liquid hourly space velocity ranging from 0.82 to 2.6 h/sup -1/. Hydrogen pressure was kept constant throughout all the experiments at 6.1 MPa with hydrogen/oil ratio about 300 NL/L. Asphaltenes were precipitated from the reduced crude and hydrotreated products with 15 parts of n-pentane (by volume) to 1 part of sample. Then, the deasphaltened products were fractionated by liquid- solid chromatography for saturates, aromatics and polar- aromatics separation. The kinetic study of aromatics and polar- aromatics hydrogenation indicates that these reactions are well correlated with a second-order kinetics. The rate constants of aromatics and polar-aromatics hydrogenation were calculated. Finally, the apparent activation energy (Ea), enthalpy of activation (..delta..H) and entropy (..delta..S) were calculated for hydrogenation of aromatics and polar-aromatics of reduced crude during hydrotreating.

• OSTI ID: 6588749
• Journal Information: Fuel Sci. Technol. Int.; (United States), Journal Name: Fuel Sci. Technol. Int.; (United States) Vol. 6:6; ISSN FSCTE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
ACTIVATION ENERGY
ALKANES
ASIA
ASPHALTENES
ASPHALTS
BITUMENS
CALCULATION METHODS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DEVELOPING COUNTRIES
DISTILLATES
ENERGY
ENERGY SOURCES
ENTHALPY
ENTROPY
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
IRAQ
KINETICS
LIQUID COLUMN CHROMATOGRAPHY
MIDDLE EAST
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PENTANE
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PHYSICAL PROPERTIES
REACTION KINETICS
SEPARATION PROCESSES
TAR
THERMODYNAMIC PROPERTIES