Wilsonville Advanced Coal Liquefaction Research and Development Facility, Wilsonville, Alabama. Topical report No. 2. Non-integrated two-stage liquefaction

Technical Report · Sun May 01 04:00:00 EDT 1983

OSTI ID:6040480

The NTSL system sequentially combines three processes: (1) the solvent refined coal (SRC) process for thermal dissolution of coal, (2) the Critical Solvent Deashing (CSD) process for separation of ash and undissolved coal, and (3) the hydrotreating (HTR) process for product upgrading. The NTSL process does not involve the recycle of process streams from the HTR unit to the SRC and/or the CSD units. This differentiates the NTSL process from the integrated two-stage coal liquefaction (ITSL) process, in which at least one HTR process stream is recycled to the SRC unit. The primary objective of the NTSL program is to develop a commercially feasible method for efficient conversion of coal to more marketable liquid fuels, such as +350/sup 0/F distillates and residual oils. When compared to the single stage SRC-I process (combined SRC and CSD units), the NTSL product slate objective requires significantly higher yields of distillates. The additional production of distillates is accomplished, without adversely affecting the hydrogen consumption efficiency, by separating the thermal coal dissolution reactions and catalytic conversion reactions, and by selective recycle of light SRC from the CSD unit to the SRC unit. A general discussion of run results, unit performance, product quality, selectivity, fuel oil blend studies, optimum performance projection and process economics is presented.

• Research Organization: Catalytic, Inc., Wilsonville, AL (USA); Southern Co. Services, Inc., Birmingham, AL (USA)
• DOE Contract Number: AC22-82PC50041
• OSTI ID: 6040480
• Report Number(s): DOE/PC/50041-15; ON: DE83012411
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
CONSUMPTION RATES
DATA
DEASHING
DISTILLATES
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FUNCTIONAL MODELS
HYDROGEN
HYDROGENATION
INFORMATION
LIQUEFACTION
LIQUIDS
NONMETALS
NUMERICAL DATA
ORGANIC SOLVENTS
PILOT PLANTS
RECYCLING
SOLVENTS
SRC PROCESS
THERMOCHEMICAL PROCESSES
TSL PROCESS
YIELDS