Process for gasifying coal wherein a catalyst is incorporated by ion exchange after partial oxidation of the coal
Номер патента: CA1117053A
Опубликовано: 26-01-1982
Автор(ы): Richard C. Neavel, Robert J. Lang
Принадлежит: Exxon Research and Engineering Co
Опубликовано: 26-01-1982
Автор(ы): Richard C. Neavel, Robert J. Lang
Принадлежит: Exxon Research and Engineering Co
Реферат: ABSTRACT OF THE DISCLOSURE An improved method of distributing catalysts in coal comprising oxidizing the coal and ion-exchanging the active sites thus formed with a cation which exhibits catalytic activity when used in a subsequent coal conversion process. The ion exchange may be accomplished simultaneously with or subsequent to the oxidation step. After the ion exchange the coal can then be subjected to conversion via a gasification process. Ion exchange with the alkali and alkaline earth metal cations is particularly effective when the coal is subsequently converted via a gasification reaction. Incorporation of the cations into the coal via the method of this invention results in increased conversion rate and, generally, higher conversions to more desirable products. The method is particularly effective in the conversion of subbituminous and higher ranking coals and is most effective in processes wherein bituminous coal is converted.
PROCESS FOR TRANSFORMATION OF CHARCOAL MATERIALS IN THE PRESENCE OF A CATALYST CONTAINING ALKALINE METALS
Номер патента: FR2425890A1. Автор: . Владелец: Exxon Research and Engineering Co. Дата публикации: 1979-12-14.