摘要:
Disclosed is a method for producing at least one gas having a low CO 2 concentration and one or more primary fluids having a high CO 2 concentration from a fluid which is to be treated and contains CO 2 and at least one compound that is more volatile than CO 2 . Said method comprises the following steps: a) the fluid to be treated is subjected to a first cooling process using heat exchange without the fluid undergoing a change of state; b) at least some of the fluid to be treated and cooled in step a) is cooled a second time such that a solid is obtained which contains mainly CO 2 and at least the gas having a low CO 2 concentration; and c) a step in which at least some of said solid is liquefied such that the one or more primary fluids having a high CO 2 concentration are obtained. The disclosed method is characterized in that at least part of the first cooling process in step a) is carried out by heating at least some of the one or more primary fluids having a high CO 2 concentration.
摘要:
The invention relates to a method for producing at least one gas lean in CO 2 and one or more primary fluids rich in CO 2 from a fluid to be processed that contains CO 2 and at least one compound more volatile than CO 2 , implementing: a) a first cooling of the fluid to be processed by heat exchange without state modification; b) a second cooling of a at least a portion of the fluid to be processed cooled during step a) in order to obtain at least one solid mainly containing CO 2 and at least one gas lean in CO 2 ; and c) a step including the liquefaction and/or sublimation of at least a portion of said solid in order to obtain said one or more CO 2 -rich primary fluids; wherein the method is characterised in that step b) is carried out in at least one expansion turbine, the solid being formed inside said turbine.
摘要:
Disclosed is a method for producing chilled water, at least one gas having a low CO 2 concentration, and one or more primary fluids having a high CO 2 concentration from a fluid which is to be treated and contains CO 2 and at least one compound that is more volatile than CO 2 , and from industrial water. Said method comprises the following steps: a) the fluid to be treated is separated into at least the gas having a low CO 2 concentration (44) and the primary fluids having a high CO 2 concentration; and b) the industrial water is chilled by exchanging heat with a fraction of the gas having a low CO 2 concentration, said fraction not amounting to zero, such that the chilled water is obtained. The disclosed method is characterized in that the heat exchange in step b) takes place in a direct-contact tower.
摘要:
Disclosed is a method for producing at least one gas having a low CO 2 concentration and one or more primary fluids having a high CO 2 concentration from a fluid which is to be treated and contains CO 2 and at least one compound that is more volatile than CO 2 . Said method comprises the following steps: a) the fluid to be treated is subjected to a first cooling process using heat exchange without the fluid undergoing a change of state; b) at least some of the fluid to be treated and cooled in step a) is cooled a second time such that a solid is obtained which contains mainly CO 2 and at least the gas having a low CO 2 concentration; and c) a step in which at least some of said solid is liquefied and/or sublimed such that the one or more primary fluids having a high CO 2 concentration are obtained. The disclosed method is characterized in that at least some of the cold required for the first cooling process and/or the second cooling process is supplied by one or more refrigeration cycles, each of which includes at least one quasi isentropic expansion of a gas.
摘要:
The invention relates to a method for producing at least one gas lean in CO 2 and one or more fluids rich in CO 2 from a fluid to be processed including CO 2 and at least one compound more volatile than CO 2 , wherein said method comprises: a) cooling, by cryocondensation, at least a portion of said fluid to be processed in at least one container so as to obtain at least one solid mainly containing CO 2 and at least said gas lean in CO 2 ; b) extracting at least a portion of the solid produced during step a) from said container; and c) liquefying and/or subliming a at least a portion of said solid extract during step b) in order to obtain one or more fluids rich in CO 2 ; characterised in that the time intervals during which step b) is implemented are included in the time intervals during which said step a) is implemented.