Title:
ENHANCED ELECTRICITY COGENERATION IN CEMENT CLINKER PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2009/147513
Kind Code:
A8
Abstract:
The invention related to a method to produce electricity in a cement clinker production utilizing a kiln and/or a precalciner as combustion chambers to generate electricity, the method comprising: a. supplying fuel (31, 30) to the precalciner (3) and/or the kiln (5) in a quantity corresponding to at least 110% of a heat value requirement for clinker production operation of the precalciner (3) and/or the rotary kiln (5) per unit weight of clinker, respectively; b. Bypassing a portion of hot flue gases (50, 51, 52) from at least one of (i) the kiln (5) and/or (ii) the precalciner (3); c. Leading the said bypassed portion of hot flue gases to a heat recovery steam generator (7) producing steam; d. Producing electricity with a power island comprising a steam turbine equipped with an electrical generator.
Inventors:
FUENTES SAMANIEGO RAUL (MX)
MARTINEZ FARIAS LUIS RAMON (MX)
NOYOLA DE GARAGORRI ANTONIO HIGINIO (MX)
TREVINO VILLAREAL LUIS (CH)
MARTINEZ FARIAS LUIS RAMON (MX)
NOYOLA DE GARAGORRI ANTONIO HIGINIO (MX)
TREVINO VILLAREAL LUIS (CH)
Application Number:
PCT/IB2009/005857
Publication Date:
December 02, 2010
Filing Date:
June 04, 2009
Export Citation:
Assignee:
CEMEX RES GROUP AG (CH)
FUENTES SAMANIEGO RAUL (MX)
MARTINEZ FARIAS LUIS RAMON (MX)
NOYOLA DE GARAGORRI ANTONIO HIGINIO (MX)
TREVINO VILLAREAL LUIS (CH)
FUENTES SAMANIEGO RAUL (MX)
MARTINEZ FARIAS LUIS RAMON (MX)
NOYOLA DE GARAGORRI ANTONIO HIGINIO (MX)
TREVINO VILLAREAL LUIS (CH)
International Classes:
C04B7/47; F27D17/00
Attorney, Agent or Firm:
NOVAGRAAF TECHNOLOGIES (Levallois-Perret Cedex, FR)
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