Conversion of cellulosic wastes to liquid fuels

Technical Report · Mon Sep 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/7067543· OSTI ID:7067543

Kuester, J L

The current status and future plans for a project to convert waste cellulosic (biomass) materials to quality liquid hydrocarbon fuels is described. The basic approach is indirect liquefaction, i.e., thermal gasification followed by catalytic liquefaction. The indirect approach results in separation of the oxygen in the biomass feedstock, i.e., oxygenated compounds do not appear in the liquid hydrocarbon fuel product. The process is capable of accepting a wide variety of feedstocks. Potential products include medium quality gas, normal propanol, diesel fuel and/or high octane gasoline. A fluidized bed pyrolysis system is used for gasification. The pyrolyzer can be fluidized with recycle pyrolysis gas, steam or recycle liquefaction system off gas or some combination thereof. Tars are removed in a wet scrubber. Unseparated pyrolysis gases are utilized as feed to a modified Fischer-Tropsch reactor. The liquid condensate from the reactor consists of a normal propanol-water phase and a paraffinic hydrocarbon phase. The reactor can be operated to optimize for either product. The following tasks were specified in the statement of work for the contract period: (1) feedstock studies; (2) gasification system optimization; (3) waste stream characterization; and (4) liquid fuels synthesis. In addition, several equipment improvements were implemented.

• Research Organization: Arizona State Univ., Tempe (USA). Coll. of Engineering and Applied Sciences
• DOE Contract Number: AS02-76CS40202
• OSTI ID: 7067543
• Report Number(s): COO-2982-57
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
BAGASSE
GASIFICATION
LIQUEFACTION
PYROLYSIS
BIOMASS
CELLULOSE
DIESEL FUELS
SYNTHESIS
GASOLINE
INTERMEDIATE BTU GAS
PROPANOLS
SYNTHETIC PETROLEUM
WOOD WASTES
CATALYSIS
CHEMICAL COMPOSITION
FISCHER-TROPSCH SYNTHESIS
FLUIDIZED BED
LIQUID FUELS
LIQUID WASTES
OPTIMIZATION
PRODUCTION
AGRICULTURAL WASTES
ALCOHOLS
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC WASTES
PETROLEUM PRODUCTS
POLYSACCHARIDES
RENEWABLE ENERGY SOURCES
SACCHARIDES
SOLID WASTES
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES
WASTES
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)