Pyrolysis of coal

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868182

Babu, Suresh P ^[1]; Bair, Wilford G ^[2]

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1. Willow Springs, IL
2. Morton Grove, IL

A method for mild gasification of crushed coal in a single vertical elongated reaction vessel providing a fluidized bed reaction zone, a freeboard reaction zone, and an entrained reaction zone within the single vessel. Feed coal and gas may be fed separately to each of these reaction zones to provide different reaction temperatures and conditions in each reaction zone. The reactor and process of this invention provides for the complete utilization of a coal supply for gasification including utilization of caking and non-caking or agglomerating feeds in the same reactor. The products may be adjusted to provide significantly greater product economic value, especially with respect to desired production of char having high surface area.

• Research Organization: Gas Technology Institute, Des Plaines, IL (United States)
• DOE Contract Number: AC21-87MC24266
• Assignee: Institute of Gas Technology (Chicago, IL)
• Patent Number(s): US 5092984
• OSTI ID: 868182
• Country of Publication: United States
• Language: English

Related Subjects

pyrolysis
coal
method
mild
gasification
crushed
single
vertical
elongated
reaction
vessel
providing
fluidized
bed
zone
freeboard
entrained
feed
gas
fed
separately
zones
provide
temperatures
conditions
reactor
process
provides
complete
utilization
supply
including
caking
non-caking
agglomerating
feeds
products
adjusted
significantly
product
economic
value
especially
respect
desired
production
char
surface
reaction zones
reaction temperatures
fluidized bed
reaction zone
reaction vessel
reaction temperature
feed coal
desired product
provide significantly
vessel providing
vertical elongated
bed reaction
coal supply
single vessel
crushed coal
single vertical
mild gasification
entrained reaction
/208/48/201/