Post-combustion CO2 capture by aqueous ammonia: A state-of-the-art review

A cyclic system composed of several integrated cyclic processes and a method for production of cement and or quicklime, ammonia, desalinated water and an excess of algae cells. The system comprises of: at least cement/quicklime production plant, at least ammonia production plant, at least one water desalination unit, at least one photo bioreactor. The energy source of the system is sunlight energy. The CO 2 produced by the system and other waste products are sequestrated and recycled for additional cycles of system operation. No CO 2 is released to the atmosphere. The system produces a huge excess of algae cells that accumulates in arithmetic or geometrical progression. The excess of algae cells can fuel additional energy consuming plants attached to the system or can be used for other various purposes such as food and food additives.

Energy production from algae in photo bioreactors enriched with carbon dioxide

Global warming is increasing permanently, because the concentration of CO2 in the atmosphere is rising continuously. According to National Oceanographic and Atmospheric Administration, the concentration of CO2 in the atmosphere was 407 ppm in June 2016 and 413 ppm in April 2017 as a last record for now. If the effects of other greenhouse gases, such as CH4, N2O, SF6, NF3, chlorofluorocarbons, hydrofluorocarbons, perfluorocarbons are added, the effective concentration may reach or exceed 550 ppm CO2-equivalent.  According to the United Nations Intergovernmental Panel on Climate Change-2014 Climate Change Report, this is about two times higher than 278 ppm CO2 concentration in the pre-industrial year 1765. Thus, very urgent solutions must be found. The aim of this article is to suggest a vital, fast and very meticulous solution using NH3 gas in the atmosphere in order to decrease the atmospheric CO2 without delay. The laboratory experiments in the gas phase for (NH3+ CO2) reaction showed us that to use NH3 gas in the atmosphere will be a very fast, effective method for decreasing CO2 concentration of atmosphere.  (NH3+ CO2) reaction is also quantitative in the cold atmosphere strata and there will be no more free ammonia in the atmosphere and no public health problem.

/pdf/an-effective-and-ecofriendly-suggestion-to-decrease-31nbrofx52.pdf

An effective and ecofriendly suggestion to decrease atmospheric carbon dioxide by using NH3 gas

Experimental Study on Sequestrating of Co2 in the True Flue Gas by Ammonia Spray and Producing Nh4hco3

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Experimental Study on Sequestrating of Co2 in the True Flue Gas by Ammonia Spray and Producing Nh4hco3