Task 4, Mild gasification technology development system integration studies, April 1989--September 1990
The IGT mild gasification process incorporates an integrated fluidized-bed/entrained-bed reactor with heat supplied by a combination of hot char and gas recycle. The use of mild operating conditions (1000 to 1500{degree}F), low pressures (<50 psig), and continuous operation in closed reactors, combined with the potential value-added benefits from the sale of co-products, offer an economical and environmentally sound approach to advanced coal utilization. The tests conducted as Task 4 operated with a full-stream product gas condensate system that was added to the process research unit (PRU). In these tests, the use of recycled char from previous tests mixed with the caking coal feed to the fluidized bed simulated the scale-up process design for the adiabatic process development unit (PDU) using recycled hot char. Also, one test was performed to evaluate the effect of carbon dioxide in the inlet fluidization gas, as would be present in the PDU design using heated recycled product gas for fluidization. Co-product yields and quality were compared with Task 2 data and related to sequential char recycle, fluidization gas, and coal type. Oils/tars yields with Illinois and West Virginia bituminous coals were consistently over 25% by weight of moisture- and ash-free coal, and were not adversely affected either by replacement of coke diluent with mild gasification char or by the use of 19% CO{sub 2} in the fluidization gas. Condensable co-products from the Task 4 PRU tests were evaluated by Reilly Industries for the production of chemicals and pitch binders, and recommendations for liquids upgrading for incorporation into the 24-ton/h PDU design were made. Larger batches of char were generated for preparation of form coke and smokeless fuel briquettes to be tested. 3 refs., 4 figs., 31 tabs.
- Research Organization:
- Institute of Gas Technology, Chicago, IL (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC21-87MC24266
- OSTI ID:
- 6094628
- Report Number(s):
- DOE/MC/24266-2966; ON: DE91002052
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of the IGT mild gasification process in a 100-pound-per-hour process research unit
Task 2: Mild gasification technology development process research unit tests using slipstream sampling, February 1988--March 1990
Related Subjects
CHARS
RECYCLING
COAL GASIFICATION
TECHNOLOGY ASSESSMENT
COAL LIQUIDS
REFINING
AROMATICS
ASH CONTENT
BENZENE
BINDERS
BITUMINOUS COAL
BOILING POINTS
BRIQUETS
BY-PRODUCTS
CARBON DIOXIDE
CHEMICAL FEEDSTOCKS
CHEMICAL PROPERTIES
CHEMICAL REACTION YIELD
COAL GAS
COAL TAR
COAL TAR OILS
COKE
CRESOLS
DESIGN
DISTILLATES
DISTILLATION
ENTRAINMENT
FLUIDIZATION
FLUIDIZED BEDS
GAS CHROMATOGRAPHY
GAS GENERATORS
HYDROCARBONS
ILLINOIS
MATERIAL BALANCE
MOISTURE
PARTICLE SIZE
PERFORMANCE TESTING
PHENOL
PITCHES
PROCESS HEAT
RESIDUES
STRUCTURAL CHEMICAL ANALYSIS
SULFUR CONTENT
TOLUENE
VOLATILE MATTER
WEST VIRGINIA
XYLENES
ALKYLATED AROMATICS
BLACK COAL
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHROMATOGRAPHY
COAL
ENERGY
ENERGY SOURCES
FEDERAL REGION III
FEDERAL REGION V
FLUIDS
FOSSIL FUELS
FUELS
GASES
GASIFICATION
HEAT
HYDROXY COMPOUNDS
LIQUIDS
MATERIALS
MATTER
NORTH AMERICA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOLS
PHYSICAL PROPERTIES
PROCESSING
PYROLYSIS PRODUCTS
SEPARATION PROCESSES
SIZE
SOLID FUELS
TAR
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
USA
YIELDS
010404* - Coal
Lignite
& Peat- Gasification
010402 - Coal
Lignite
& Peat- Purification & Upgrading