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Techno-Economic Study of CO2 Capture Process for Cement Plants

October 15th, 2006 | 1 Comment | Posted in CO2-Sequestration

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Techno-Economic Study of CO2 Capture Process for Cement Plants

This is a research report done by a Waterloo, Canadian University student in 2005.


Carbon dioxide is considered to be the major source of GHG responsible for global warming; man-made CO2 contributes approximately 63.5% to all greenhouse gases. The cement industry is responsible for approximately 5% of global anthropogenic carbon dioxide emissions emitting nearly 900 kg of CO2 for every 1000 kg of cement produced!

Amine absorption processes in particular the monoethanolamine (MEA) based process,
is considered to be a viable technology for capturing CO2 from low-pressure flue gas
streams because of its fast reaction rate with CO2 and low cost of raw materials compared to other amines. However, MEA absorption process is associated with high capital and operating costs because a significant amount of energy is required for solvent regeneration and severe operating problems such as corrosion, solvent loss and solvent degradation.

This research was motivated by the need to design size and cost analysis of CO2 capture process from cement industry. MEA based absorption process was used as a potential technique to model CO2 capture from cement plants. In this research four cases were considered all to reach a CO2 purity of 98% i) the plant operates at the highest capacity ii) the plant operates at average load iii) the plant operates at minimum operating capacity and iv) switching to a lower carbon content fuel at average plant load. A comparison among four cases were performed to determine the best operating conditions for capturing CO2 from cement plants. A sensitivity analysis of the economics to the lean loading and percent recovery were carried out as well as the different absorber and striper tray combinations.

Keywords: CO2 capture; MEA; Aspen Plus, Icarus; Cement Plant; Fuel switching; Cost

The complete research report can be found here (PDF)

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One Response to “Techno-Economic Study of CO2 Capture Process for Cement Plants”

  1. Arun MAJLI Says:

    I am interested in conversion of CO2 in biomass which can be used as fuel. I am working for a non profit oriented research institute which does research for clean energy. I will be thankfull for information in this subject.

    With best Greetings,

    Arun MAJLI

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