Capturing CO₂ by Using a Microalgae Culture Recycle Solution

Abstract

The capture of CO2 by means of a microalgae culture solution was explored in a continuous bubble‐column scrubber under a constant pH environment. Optimum conditions for a pilot‐scale study were evaluated. With the Taguchi method, a total of sixteen runs were required. Absorption rate, absorption efficiency, overall mass transfer coefficient, and gas‐liquid flow rate ratio were determined by a material balance model and a two‐film model under steady‐state conditions. From the signal‐to‐noise ratio, the sequence of parameters could be stated. Uncontrolled experiments were also performed and empirical equations were discussed.

CO2 Capture in A Bubble-Column Scrubber Using MEA/CaCl2/H2O Solution—Absorption and Precipitation

“…For example, please see Table 3. The values obtained in this study ranged from 0.01 to 0.15 1/s, congruent with those reported in the literature [29][30][31][32][33]. However, these values were much smaller than those reported in previous work [21], and those by Al-Naimi et al [29].…”