Removal of volatile organic compounds from groundwater using a rotary air stripper

A Review of CO2 Capture by Absorption and Adsorption

“…RPB can be classified into 2 types, countercurrent flow and cross flow, depending on the flow directions of gas and liquid. RPB has been used to many unit operations such as N] 28.6 ± 1.2 39.6 ± 1.4 60.5 ± 1.5 Cadena et al, 2004 absorption (Munjal et al, 1989a, b;Cheng and Tan, 2006;Tan and Chen, 2006;Jassim et al, 2007;Cheng and Tan, 2009;Cheng and Tan, 2010, Cheng and Tan, 2011, desorption (Keyvani and Gardner, 1989;Liu, 2006, 2007), dehydration (Flowler, 1989), volatile organic compounds (VOCs) absorption (Singh et al, 1992;Hsu and Lin, 2011), seawater deaeration (Peel et al, 1998), synthesis of nanoparticles (Chen et al, 2000;Wang et al, 2004), distillation (Lin et al, 2002;Nascimento et al, 2009), ozonation Ku et al, 2008;Chang et al, 2009b). Munjal et al (1989a, b) showed a significant improvement of the gas-liquid mass transfer for CO 2 capture using an aqueous solution containing 0.5 to 1.0 N of NaOH.…”

Carbon dioxide absorption in a cross-flow rotating packed bed

“…The original RPB could be operated at the mode of gas-liquid countercurrentflow. The countercurrent-flow RPB has been proved to enhance gas-liquid mass transfer in diverse processes such as distillation (Kelleher and Fair, 1996;Lin et al, 2002;Wang et al, 2008), absorption (Munjal et al, 1989;Kumar and Rao, 1990;Chen and Liu, 2002;Lin et al, , 2004Lin et al, , 2009aLin et al, ,b, 2010Tan and Chen, 2006;Cheng and Tan, 2006;Lin and Jian, 2007;Jassim et al, 2007;Lin and Chien, 2008;Lin and Su, 2008;Cheng et al, 2010), stripping (Keyvani and Gardner, 1989;Singh et al, 1992;Liu et al, 1996;Y.S. Chen et al, 2005a,b;Liu, 2006, 2007), reactive precipitation (Chen et al, 2000(Chen et al, , 2003Wang et al, 2004) and ozone oxidation Y.H.…”

An Integrated Design Method for Rotating Packed Beds for Distillation

“…In step 2 the model is applied to calculate the operating and design parameters for the separation task considering flooding behavior, mass and heat transfer. Finally, in step 3 the pressure drop, the electrical power consumption of the motor, both based on publications by Singh et al (1992), and the space requirement of the RPB are calculated to evaluate the design results. The detailed workflow behind each step is not shown here, however, the model for the RPB is explained in detail in sub-chapter 2.1.…”