CO&lt;sub&gt;2&lt;/sub&gt; Fixation Using MEA and CaCl&lt;sub&gt;2&lt;/sub&gt; Aqueous Solutions

Liu, Feng; Li, Zhi Xin; Fu, Dong

doi:10.4028/www.scientific.net/amm.541-542.130

Cited by 1 publication

(1 citation statement)

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“…This aqueous solution offers an advantage in chemical absorption due to the formation of value-added product which is precipitate carbonate that is useful in chemical industries. Moreover, the process requires only low energy cost because carbonate formation and precipitation filtration do not have a high energy requirement [5]. The formation of the carbonate is affected by different operating conditions such as solution supersaturation [6], pH [7], temperature [8] and foreign ion [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on Calcium Carbonate Precipitation in Biomimetic Calcium Chloride Solution

Fatheen

Syuhani

Hamzah

et al. 2021

Advances in Science and Technology

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In the present work, the effect of temperature on calcium carbonate precipitation in the biomimetic calcium chloride solution was investigated. A spontaneous calcium carbonate precipitate was formed in the biomimetic calcium chloride solution as a result of the carbon dioxide hydration process. The reaction was conducted at different temperature range vary from 30°C to 100°C. The mass of the calcium carbonate precipitate and the pH solution was measured in the study. The finding indicated that an increment of the temperature has led to the fast pH reduction of the solutions to 7.0. However, the process has retarded the calcium carbonate precipitation process. The optimum temperature for higher calcium carbonate precipitation has occurred at the temperature range of 47.5°C – 65°C which gave the highest calcium carbonate precipitate at 0.121g. The addition of Tris buffer into the calcium chloride solution in this study did not gave an inhibition effect on the calcium carbonate precipitate. Based on the results, an operating condition at 47.5°C – 65°C was recommended to be used in mineral carbonization of CO2 using the biomimetic calcium chloride solution.

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