D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 11/06 (2006.01) C01D 7/00 (2006.01) D21C 11/12 (2006.01) F02C 3/20 (2006.01) F02C 6/10 (2006.01)
Patent
CA 2061108
Abstract The invention relates to a method and an equip- ment for the recovery of energy and chemicals in a sulphate process, wherein black liquor is passed into a gasification reactor (3) in which it is gasified at a pressure above the atmospheric pressure in the presence of an amount of oxygen smaller than the stoichiometric amount, whereby inorganic compounds are recover- ed as liquid-phase compounds useable in the present pulping process, and the energy of the organic compounds of black liquor is bound main- ly to the chemical compounds of the gas phase. Gases formed in the gasification, containing sodium compounds, are passed into a particle cooler (4), in which the compounds are brought into solid state. Gases cooled in the particle cooler (4) are purified by a filter (5) and then passed into a gas turbine (7). (Figure 1)
Gowling Lafleur Henderson Llp
Tampella Power Oy
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