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Method for removing co2 from smoke or exhaust gas of combustion process

A combustion process, flue gas technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of flotation agents that are difficult to remove, difficult to remove, and the ecological harm of algae growth

Inactive Publication Date: 2012-05-16
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The disadvantage of these chemical removal methods is on the one hand the addition of chemicals
Flotation agents are often difficult to remove and can in part have a detrimental effect on the ecology of algae growth
Furthermore, the biomass separated in this way always contains residues of additives which are often difficult to remove

Method used

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  • Method for removing co2 from smoke or exhaust gas of combustion process
  • Method for removing co2 from smoke or exhaust gas of combustion process
  • Method for removing co2 from smoke or exhaust gas of combustion process

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Embodiment Construction

[0032] figure 1 A power plant 1 is shown in a schematic diagram with an exhaust gas line 20 through which the exhaust gases or flue gases generated during the combustion of fossil energy carriers in the power plant 1 are discharged. The exhaust gas from the combustion process in this power station 1 contains harmful carbon dioxide, which should be removed from the exhaust gas flow. The exhaust gas passes through the exhaust gas line 20 into a container 30 which encloses a space in which cellular organisms 40 are located. The cellular organisms are, for example, photosynthetically active cells such as microalgae or bacteria, especially cyanobacteria. The cellular organisms 40 convert carbon dioxide present in the exhaust gas flow of the power plant 1 into biomass 10 when supplied with nutrients, such as phosphate or nitrogen, which reach the container 30 or the space via the inlet 110 . This biomass 10 or at least a portion thereof can be removed through the removal opening 5...

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Abstract

The invention relates to removal of CO2 from smoke or exhaust gas (20) of a combustion process in a power plant (1). The exhaust gases comprising CO2 are fed into a tank (30) in which cellular organisms (40), such as micro algae, are present, converting the CO2 into biomass (10) when nutrients (N) are added. The micro algae and / or the generated biomass have magnetic particles (60) added, which combines with the algae and / or the biomass. The biomass having the magnetic particles is separated in a magnetic separation stage (120) or magnetic drum separator.

Description

technical field [0001] The present invention relates to a method for converting CO 2 A method of removal from combustion process flue or exhaust gases. Background technique [0002] Scientifically it has been recognized since the 1990s at the latest that there is a statistically significant climate change and one of the causes is carbon dioxide in the atmosphere CO 2 concentration rises. This suspicion, which initially caused considerable uncertainty, was confirmed repeatedly during the course of the research and after the intense debate surrounding global warming and is today largely scientifically unanimous. The observed temperature data, in the opinion of the vast majority of scientists, cannot be explained without accounting for greenhouse gases in the atmosphere. The consequences of global warming should be reduced through climate protection. [0003] The vast majority of the radiation that reaches the Earth from the Sun passes through the Earth's atmosphere more or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85C02F1/48C02F3/12
CPCB01D2257/504B01D53/85B01D53/84Y02C10/02Y02A50/20Y02C20/40
Inventor M.吕里希D-P.黑德
Owner SIEMENS AG