Method for recovering light hydrocarbons from coal agglomerates

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:868068

Huettenhain, Horst ^[1]; Benz, August D ^[2]; Getsoian, John ^[3]

---

1. Benicia, CA
2. Hillsborough, CA
3. Ann Arbor, MI

A method and apparatus for removing light hydrocarbons, such as heptane, from coal agglomerates includes an enclosed chamber having a substantially horizontal perforate surface therein. The coal agglomerates are introduced into a water bath within the chamber. The agglomerates are advanced over the surface while steam is substantially continuously introduced through the surface into the water bath. Steam heats the water and causes volatilization of the light hydrocarbons, which may be collected from the overhead of the chamber. The resulting agglomerates may be collected at the opposite end from the surface and subjected to final draining processes prior to transportation or use.

• Research Organization: BECHTEL CORP
• DOE Contract Number: AC22-87PC79867
• Assignee: Bechtel Group, Inc. (San Francisco, CA); Arcanum Corp. (Ann Arbor, MI)
• Patent Number(s): US 5066310
• OSTI ID: 868068
• Country of Publication: United States
• Language: English

Related Subjects

method
recovering
light
hydrocarbons
coal
agglomerates
apparatus
removing
heptane
enclosed
chamber
substantially
horizontal
perforate
surface
therein
introduced
water
bath
advanced
steam
continuously
heats
causes
volatilization
collected
overhead
resulting
opposite
subjected
final
draining
processes
prior
transportation
substantially horizontal
water bath
light hydrocarbon
closed chamber
continuously introduced
substantially continuous
light hydrocarbons
substantially continuously
coal agglomerates
enclosed chamber
/44/