Document Type

Article

Publication Date

Fall 10-3-2024

Abstract

Among various Carbon Capture and Sequestration (CCS) technologies, significant emphasis has been placed on biochar as an effective post-combustion CO2 capture method. Biochar demonstrates potential as a technically effective method for stabilizing carbon. However, the efficacy of CCS based on adsorption phenomenon depends on factors such as the CO2 uptake of the adsorbent, kinetic rates, and cyclic adsorption. The study shows that Low-Frequency High Amplitude (LFHA) resonant vibratory mixing improves the physical characteristics and adsorption properties of hemp biochar. According to the results of an analysis of variance (ANOVA), increasing both the mass of biochar and the intensity of resonant vibrations leads to a significant increase in the surface area of biochar particles. However, a quadratic effect is noted on the surface area across varying time intervals. The results additionally confirm that under specific conditions—specifically, with a biochar mass of 8.5g in the existing mixing vessel, a mixing time of two minutes, and an intensity of 75%—the surface area reaches its maximum increase during the process, achieving an optimized state. These observations provide valuable information for optimizing the adsorption capacity and kinetic rate of CO2 adsorption onto biochar, while also contributing to the design of future CCS systems through resonant vibrations.

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Published at SME-IMPC 2024, XXXI IMPC - International Mineral Processing Congress. September 29 - October 3, 2024.

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