Mineral oils: processes and products – Phenolic or toxic oils
Patent
1977-05-19
1980-10-14
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, 44 1R, C10G 100, C10G 106, C10L 000
Patent
active
042279895
ABSTRACT:
A process for the treatment of a calcium-containing subbituminous coal and coals of lower rank to form insoluble, thermally stable calcium salts which remain within the solids portions of the residue on liquefaction of the coal, thereby suppressing the formation scale, made up largely of calcium carbonate deposits, e.g., vaterite, which normally forms within the coal liquefaction reactor (i.e., coal liquefaction zone), e.g., on reactor surfaces, lines, auxiliary equipment and the like. A solution of a compound or salt characterized by the formula MX, where M is a Group IA metal of the Periodic Table of the Elements, and X is an anion which is capable of forming water-insoluble, thermally stable calcium compounds, is maintained in contact with a particulate coal feed sufficient to impregnate said salt or compound into the pores of the coal. On separation of the impregnated particulate coal from the solution, the coal can be liquefied in a coal liquefaction reactor (reaction zone) at coal liquefaction conditions without significant formation of vaterite or other forms of calcium carbonate on reactor surfaces, auxiliary equipment and the like; and the Group IA metal which remains within the liquefaction bottoms catalyzes the reaction when the liquefaction bottoms are subjected to a gasification reaction.
REFERENCES:
patent: 2191156 (1940-02-01), Pier et al.
patent: 3532617 (1970-10-01), Hodgson
patent: 3729407 (1973-04-01), Camp et al.
patent: 3755137 (1973-08-01), Schuman
patent: 3796650 (1974-03-01), Urban
patent: 3813329 (1974-05-01), Gatsis
patent: 4039473 (1977-08-01), Schafer
patent: 4054420 (1977-10-01), Longanbach
patent: 4057484 (1977-11-01), Malek
patent: 4057512 (1977-11-01), Vadonic et al.
patent: 4060478 (1977-11-01), Lang
patent: 4092125 (1978-05-01), Stambaugh et al.
Gorbaty Martin L.
Taunton John W.
Exxon Research & Engineering Co.
Gantz Delbert E.
Hoover Wayne
Proctor L. A.
Wright William G.
LandOfFree
Liquefaction of calcium-containing subbituminous coals and coals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquefaction of calcium-containing subbituminous coals and coals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquefaction of calcium-containing subbituminous coals and coals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2099855