Experimental Analysis of Carbon Dioxide Capture Using Calcium Acetate from Animal Bones and Acetic Acid.

Abstract

The necessity of carbon dioxide also known as carbon iv oxide (CO2) capture and storage is evident as greenhouse gas emissions continue to contribute to global warming, leading to adverse effects on the climate such as increased atmospheric and ocean temperatures. Carbon Capture, Storage, and Utilization are essential techniques to address this issue. This study focuses on utilizing crushed animal bones to extract calcium ions using acetic acid for capturing carbon dioxide. The experiment involved reacting the solution with carbon dioxide gas in a reactor, resulting in the formation of calcium acetate (CaCO3). The results showed that animal bones effectively absorbed and stored carbon dioxide, demonstrating varying average volumes at different temperatures of absorption as 140.0ft3 ,199.0ft3, 231.5ft3 , and 231.5ft3 at 650C, 750C, 850C and 950C respectively. The experiment resulted in the formation of a white precipitate during the reaction process, indicating the successful formation of CaCO3 from the captured CO2. The various average weights of the CaCO3 deposited due to the Carbon dioxide captured by the grinded cow bones were recorded as 40.4g, 44.7g, 46.5g, and 46.0g at temperatures of 650C, 750C, 850C, and 950C respectively. The study also indicates that there are small increases in CaCO3 deposits and CO2 volume when temperatures exceed 850C. However, the additional CO2 capture capacity at higher temperatures is minimal compared to 850C, suggesting that operating the system at temperatures above 850C may not be feasible due to potential constraints in CO2 capture capacity of the acetic acid and calcium acetate solution. This research underscores the importance of industries, such as oil and gas and automobile sectors, in capturing and storing carbon dioxide for renewable energy generation and enhanced crude oil recovery using grinded animal bones.