Experimental investigation and modeling of mass transfer characteristics in a double-contact flow absorber
A double-contact-flow absorber com prising spray nozzle array with new flow p attern has been proposed, modeled and tested with CaCO_3 as sorbent. The flow characteristic of different scale absorber has been investigated, and the practical be d height coe fficient can be expressed by a exponent function when Froude number is used as independent variable. Various parameters such as liq uid flow rate, flue gas flo w rate and different nozzle array pattern s influencing desu lfurization rate have been tested in s mall sc ale equipment. Under the moderate condition em ployed, the desulfurization efficiency can reach a high level above 95％. A model has been established to describe th e heat and mass transfer process in double-conta ctflow absorber, especially, a method to estimate the contact area between gas and liquid.
Desulfurization double-contact-flow absorber mass transfer nozzle array pattern
N.Li Q.L.Zhou D.J.Kong T.M.Xu S.E.Hui
State Key Laboratory of Multiphase Flow, Xian Jiaotong University, China
国际会议
西安
英文
211-218
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）