Compositions – Co – s – negative element – or acid – bindant containing – Alkali-metal or alkali-metal compound containing
Patent
1993-09-30
1995-10-17
Lovering, Richard D.
Compositions
Co, s, negative element, or acid, bindant containing
Alkali-metal or alkali-metal compound containing
44604, 127 32, 530500, 554178, C09K 300
Patent
active
054588030
ABSTRACT:
A method of reducing acid emission from a flue gas produced by combustion of a sulphur-containing fuel. A pyrolysis liquor containing a thermolabile alkaline earth metal compound is introduced into a flue containing the flue gas. The alkaline earth metal compound is able to decompose at flue gas temperature to produce an alkaline compound able to react with sulphur dioxide in the flue gas. A liquor additive to inject into a flue gas resulting from a combustion of a sulphur containing fuel to reduce the acid content of the flue gas is also described. The liquor comprises a pyrolysis liquor, initially acidic but at least partially neutralized by basic alkaline earth metal compounds. The resulting liquor contains at least one thermolabile alkaline earth metal compound able to decompose at flue gas temperature to produce an alkaline compound able to react with sulphur dioxide. A method of producing the liquor is also described.
REFERENCES:
patent: 1538269 (1925-05-01), Colas
patent: 1917660 (1933-07-01), Martin et al.
patent: 3970434 (1976-07-01), Gasior et al.
patent: 4259085 (1981-03-01), Ban et al.
patent: 4319885 (1982-03-01), Brown
patent: 4505776 (1985-03-01), Murray
patent: 4615871 (1986-10-01), Yoon
patent: 4728393 (1988-03-01), Peel
patent: 4786485 (1988-11-01), Kirchgessner et al.
patent: 5288857 (1994-02-01), Aarsrud et al.
Rodden, G., "The New Alchemy: Turning Waste into Oil and Chemicals", Canadian Chemical News 45(8):35-37 (1993).
Vogiatzis, et al., "The Characterization of Fast Pyrolysis Bio-Oils", Advances in Thermochemical Biomass Conversion, vol. 2, Blackie Academic & Professional, pp. 1095-1102 (1994).
Ye et al., "Desulfurization Tests of Sorbent E1 in a Bench-Scale Fluidized-Bed Coal Combustor", Coal Combustion Science and Technology of Industrial and Utility Applications, Hemisphere Publishing Corporation, New York, pp. 565-572 (1988).
Levendis, Y. A., "Catalysis of the Combustion of Carbonaceous Particles (Synthetic Chars and Coal) by Addition of Calcium Acetate", Journal of Energy anmd Fuels, Chapter 9 (1989).
Elliott et al., "Developments in Direct Thermochemical Liquefaction of Biomass: 1983-1990", Energy & Fuels, vol. 5, pp. 399-410 (1991).
Backman et al., "Economic Assessment of a Wood Fast Pyrolysis Plant", AITBC Conference, Interlaken, Switzerland (1992).
Piskorz et al., "Liquid Products From the Fast Pyrolysis of Wood and Cellulose", Research in Thermal Biomass Conversion, Elsevier Science Publishers, New York, pp. 557-571 (1988).
Ohtsuka et al., "Catalytic Gasification of Low-Rank Coals with Calcium Acetate", Elsevier Science Publishers, New York, pp. 253-271 (1991).
Dynamotive Corporation
Lovering Richard D.
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