A high liquid yield process for retorting various organic materials including oil shale

Patent · Tue Jul 26 04:00:00 EDT 1988

OSTI ID:6226712

Coburn, T. T.

This invention is a continuous retorting process for various high molecular weight organic materials, including oil shale, that yields an enhanced output of liquid product. The organic material, mineral matter, and an acidic catalyst, that appreciably adsorbs alkenes on surface sites at prescribed temperatures, are mixed and introduced into a pyrolyzer. A circulating stream of olefin enriched pyrolysis gas is continuously swept through the organic material and catalyst, whereupon, as the result of pyrolysis, the enhanced liquid product output is provided. Mixed spent organic material, mineral matter, and cool catalyst are continuously withdrawn from the pyrolyzer. Combustion of the spent organic material and mineral matter serves to reheat the catalyst. Olefin depleted pyrolysis gas, from the pyrolyzer, is enriched in olefins and recycled into the pyrolyzer. The reheated acidic catalyst is separated from the mineral matter and again mixed with fresh organic material, to maintain the continuously cyclic process. 2 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7224414
• Application Number: ON: DE89011445
• OSTI ID: 6226712
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
ADSORPTION
ALKENES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CLAYS
DECOMPOSITION
DESIGN
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
INORGANIC ION EXCHANGERS
INVENTIONS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
MONTMORILLONITE
OIL SHALES
ORGANIC COMPOUNDS
ORGANIC MATTER
PYROLYSIS
RECYCLING
RETORTING
SORPTION
SURFACE AREA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
YIELDS
ZEOLITES