Method and apparatus for reducing the by-product content of carb

Details Method and apparatus for reducing the by-product content of carb Method and apparatus for reducing the by-product content of carb

1997-04-01

1998-06-23

Howard, Jacqueline V.

Fuel and related compositions

Coal treating process or product thereof

Removal of undesirable

44629, 422200, 422201, 422307, 165 1, C10L 900

Patent

active

057699089

ABSTRACT:
The present invention relates to various apparatuses and processes for treating carbonaceous materials to remove by-products therefrom. More particularly, the present invention relates to the treatment of carbonaceous materials by injecting an inert gas into the carbonaceous material under a vacuum or injecting steam into the carbonaceous material either with or without the vacuum being applied in a controlled manner to more consistently treat the charge of carbonaceous material.

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patent: 4052168 (1977-10-01), Koppelman
patent: 4089656 (1978-05-01), Cole
patent: 4285140 (1981-08-01), van Raam et al.
patent: 4505211 (1985-03-01), Lamare
patent: 4523927 (1985-06-01), Kuge et al.
patent: 4601113 (1986-07-01), Draper et al.
patent: 4626258 (1986-12-01), Koppelman
patent: 4980029 (1990-12-01), Bolz et al.
patent: 5071447 (1991-12-01), Koppelman
patent: 5290523 (1994-03-01), Koppelman

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