Hydrotreatment catalyst activity enhancement. Quarterly report No. 3, February 1-April 30, 1984. [Titanocene dichloride]

Technical Report · Fri May 18 00:00:00 EDT 1984

OSTI ID:5000323

Seapan, M; Crynes, B L

Tetralin and a mixture of 5% phenanthrene in Tetralin were hydrotreated in a two-stage trickle-bed reactor over a commercial Ni-Mo/Alumina catalyst at 350/sup 0/C (662/sup 0/F) and 10.34 MPa (1500 psia). These runs were compared with the runs where 100 ppM of titanium as titanocene dichloride were added to the feedstocks. Both the catalyst and oil samples were analyzed to measure the catalyst activity and coking. An additional run was made to check the reproducibility of experiments. Meanwhile, preliminary studies were conducted on the homogeneous reaction of Tetralin with titanocene dichloride. These studies indicate a slow homogeneous reaction occurring between Tetralin and titanocene dichloride at room temperatures. Hydrotreatment experiments show that the addition of titanocene dichloride to the feedstocks increases the H/C ratio of the products. Similar effects are also observed when the distillation curves of the products are compared. Addition of titanocene dichloride lowers the bubble point curves for both feedstocks. However, the effects on the coke formation depend on the hydrocarbon feedstock used. While the addition of titanocene dichloride decreases the coke formation for Tetralin/phenanthrene feedstock, it gives increased coking when only Tetralin is hydrotreated. Gas chromatographic analyses show that Tetralin is hydrogenated to cis- and trans-decalin, with small amounts of naphthalene formed as by-products of the process. Preliminary analysis of results excludes titanium or chloride as possible reasons of interference. It also indicates that probably the interference originates from some organic intermediates that are generated from titanocene dichloride. Further studies will be conducted to verify these results. 10 figures, 3 tables.

• Research Organization: Oklahoma State Univ., Stillwater (USA). School of Chemical Engineering
• DOE Contract Number: FG22-83PC60813
• OSTI ID: 5000323
• Report Number(s): DOE/PC/60813-3; ON: DE84011558
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CATALYSTS
DEACTIVATION
COKE
DEPOSITION
HYDROGENATION
MOLYBDENUM
NICKEL
PHENANTHRENE
TETRALIN
TITANIUM COMPOUNDS
CHEMICAL REACTIONS
CATALYST SUPPORTS
COAL LIQUIDS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH PRESSURE
HIGH TEMPERATURE
PROMOTERS
RESEARCH PROGRAMS
STRUCTURAL MODELS
ALUMINIUM COMPOUNDS
AROMATICS
CHALCOGENIDES
CHROMATOGRAPHY
CONDENSED AROMATICS
DATA
ELEMENTS
FLUIDS
HYDROCARBONS
INFORMATION
LIQUIDS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)