C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/32
C10J 3/00 (2006.01)
Patent
CA 1115522
ABSTRACT OF THE DISCLOSURE A novel process, and the compositions formed thereby, wherein a Group II-A metal, or compound thereof, can be ion-exchanged onto coal, and thereafter a Group I metal physically admixed or other wise incorporated therewith, so that the composition can be pyrolyzed, and gasified, to form a high-BTU, intermediate-BTU or synthesis fuel gas. Suitably, the Group II metal, or alkaline earth metal, can be directly ion-exchanged onto a low rank coal, without necessity of any pretreatment. An alkaline earth metal, or metals, can also be ion-exchanged onto a high rank coal, notably one deficient in natural active exchange sites, such as a subbituminous or bituminous coal, by (a) contacting, heating and soaking the coal in an alkali solution of a Group I-A metal compound or an admixture of metal compounds of Group II-A metals sufficient to incorporate said Group I-A metal compound, or cation portion thereof, into said coal and form ion-exchange sites,. (b) or by ox- idation of the high rank coal by contact with an oxidizing agent, prefer- ably an oxygen-containing gas (air), peroxygen compound, oxiding acid or the like, to form ion-exchange sites, ion-exchanging a Group II metal onto the active sites thus created, and thereafter admixing or otherwise incor- porating the Group I metal to form the desired composition.
318093
Lang Robert J.
Neavel Richard C.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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