Refining and upgrading of synfuels from coal and oil shales by advanced catalytic processes: Fourteenth interim report, Processing of Wyodak CTSL (catalytic two-stage liquefaction) oil and related experimental studies. [From single-stage and two-stage liquefaction processes]

Technical Report · Fri Aug 01 04:00:00 EDT 1986

OSTI ID:6915864

Sullivan, R F

Syncrudes produced from Wyodak coal in the Catalytic Two-Stage Liquefaction (CTSL) process were upgraded in pilot plant tests by hydrotreating with Chevron's commercial ICR 106 catalyst. Two CTSL syncrudes were studied; the first had an end point (EP) of about 625/sup 0/F; the second, an EP of about 850/sup 0/F. In this report, results are compared to those obtained with syncrudes from single-stage liquefaction processes and another two-stage process (Integrated Two-Stage Liquefaction (ITSL)). In general, products from the two-stage liquefaction processes were easier to upgrade than those from single-stage processes. However, with all of the syncrudes, relatively small increases in EP made the oils more difficult to hydrotreat. The 625/sup 0/F EP CTSL was the easier to upgrade than the other syncrudes because of its relatively low EP and low heteroatom and high hydrogen contents. Both of the CTSL syncrudes were upgraded in a single hydrotreating step to diesel fuel, jet fuel, and a naphtha suitable for catalytic reforming. However, for the higher EP syncrude, the preferred route also required either a hydrocracking step or a second hydrotreating step. Transportation fuels made from all the syncrudes were fairly similar. Mainly, they were composed of cyclic hydrocarbons. There were, however, differences in product distributions depending upon syncrude boiling ranges. The middle-distillate fuels (jet and diesel) had high densities and, therefore, high volumetric energy contents. 14 refs., 16 figs., 49 tabs.

• Research Organization: Chevron Research Co., Richmond, CA (USA)
• DOE Contract Number: AC22-76ET10532
• OSTI ID: 6915864
• Report Number(s): DOE/ET/10532-T34; ON: DE87003103
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ANTIKNOCK RATINGS
API GRAVITY
BOILING POINTS
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COAL TAR OILS
COMPARATIVE EVALUATIONS
DATA
DENSITY
DIESEL FUELS
DISTILLATES
DISTILLATION
ENERGY SOURCES
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUELS
H-COAL PROCESS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
JET ENGINE FUELS
LIQUEFACTION
LIQUIDS
NAPHTHA
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POUR POINT
PROCESSING
REFINING
RESEARCH PROGRAMS
SEPARATION PROCESSES
SRC-II PROCESS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TSL PROCESS
VISCOSITY
YIELDS