$CO_2$ was absorbed by water with lst order chemical reaction in a packed column.
In the liquid phase $K_2CO_3-KHCO_3$ was used as a buffer solution, adding KCL and NaOCl for constant ionic strength and catalytic effect, respectively.
Sphere- and square-shape polypropylene packing materials were used and $k_La$ were determined from these experiments using Dankwerts' plot.
A semi empirical equation was derived and compared with the experimental result of this work as well as other investigators.
A good agreement was obtained between the data and the following modeling equation.
◁수식 삽입▷(원문을 참조하세요)
$K_2CO_3 - KHCO_3$ buffer solution 에 NaOcl 을 촉매로 첨가한 후 solution의 ionic strength를 일정하게 유지하기 위해 Kcl을 넣고 $CO_2$를 흡수시키는 absorption with 1 st order chemical reaction system을 사용하여 sphere와 square 모양의 각각 1/2",3/8",1/4"인 poly propylene packing materials에 대해 실험하고 Dankwerts' plot을 하여 volumetric mass transfer coefficient $K_L a$와 effective interfacial area a를 구한 후 Davidson의 idea를 기초로하여 packed column을 이론적으로 해석하고, 여러가지 충진물에 대한 결과를 검토하여
◁수식 삽입▷(원문을 참조하세요)
의 modelling equation을 얻었으며 이 modelling equation을 해석하여 volumetric mass transfer coefficient가 liquid flow rate의 0.64승에 비례하고 shape factor f가 total area, at만의 함수로 표현될 수 있음을 밝혔다.
