Multiple hearth apparatus and process for thermal treatment of c

Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

44 2, 44 29, 44 33, 422142, 422146, F26B 1712, C10L 908

Patent

active

047283394

ABSTRACT:
A multiple hearth apparatus and process for the thermal treatment of organic carbonaceous materials under controlled pressure and temperature comprising a pressure vessel containing a plurality of superimposed annular hearths including hearths in a reaction zone of the apparatus which are formed with a foraminous upper surface disposed in communication with a plenum for injecting a heated fluid into heat exchange contact with the feed material disposed thereon. The injected heating fluid or gas in further combination with the volatile gases evolved during the thermal restructuring reaction pass countercurrently relative to the travel of the feed material to effect a preheating thereof to a moderate temperature in a preheating zone of the apparatus. Preferably, at least a portion of the volatile gases from the apparatus are treated to remove condensible portions thereof and are reheated and pressurized for recycle to the apparatus. In operation, the apparatus is adapted to operate at temperatures ranging from about 200.degree. F. up to about 1200.degree. F. at pressures generally ranging from about 300 up to about 3000 psig. Resident times of as little as one minute up to about 1 hour can be employed which will vary depending upon the type of feed material and the desired upgraded solid product.

REFERENCES:
patent: 3968756 (1976-07-01), Yamada
patent: 4046086 (1977-09-01), Von Dreusche
patent: 4052168 (1977-10-01), Koppelman
patent: 4182246 (1980-01-01), Lombana et al.
patent: 4248164 (1981-02-01), Isheim
patent: 4254643 (1979-05-01), Cook
patent: 4347156 (1982-08-01), Lombana et al.
patent: 4371375 (1983-02-01), Dennis, Jr. et al.
patent: 4391208 (1983-07-01), Lewis
patent: 4398476 (1983-08-01), Suzuki
patent: 4453474 (1984-06-01), Lewis

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multiple hearth apparatus and process for thermal treatment of c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple hearth apparatus and process for thermal treatment of c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple hearth apparatus and process for thermal treatment of c will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-995617

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.