B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
44/9
B01D 53/34 (2006.01) C10L 1/32 (2006.01) C10L 9/00 (2006.01) C10L 10/00 (2006.01)
Patent
CA 1245449
CANADIAN PATENT APPLICATION OF MIHKEL MATHIESEN AND OLLE NYSTR?M FOR A COMPOSITION AND A METHOD OF CAPTURING SULPHUR Abstract of the Disclosure: The invention relates to a composition and a method of capturing sulphur emanating from burning carbona- ceous fuel particles of an aqueous fuel composition which comprises about 60-80% by weight of carbonaceous fuel particles with an ash content of below about 5% by weight on a dry basis, about 0.05-2.0% by weight of a flow-enhancing chemical which includes a non-ionic dispersant, and a liquid carrier phase consisting es- sentially of water. The sulphur is captured prior to formation of gaseous sulphur oxides which become diluted 1a on the gaseous phase during and after combustion, and involves the introduction of a sulphur captor which preferably is chosen from hydroxides, oxides or carbo- nates of calcium or magnesium on or in reaction-facili- tating proximity to the burning carbonaceous fuel par- ticles, thereby utilizing local chemical potential in the formation of locally or relatively stable sulphides at relatively low oxygen potentials, the sulphur being captured during the combustion phase as solid sulphide and subsequently, when the temperature drops as the solid combustion residue leaves the flame and the local oxygen potential rises, and sulphate formation occurs, as the sulphate. The amount of sulphur in the combus- tion off gas is accordingly greatly reduced according to the method of the present invention. 1b
458682
Mathiesen Mihkel
Nystrom Olle
Ab Carbogel
Berol Kemi Aktiebolag
Gastle And Associates
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