Research of Removing HSS from Organic Amine Desulphurization Solution

2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, February 19-February 20, pp. 1660-1663

Research of Removing HSS from Organic Amine Desulphurization Solution

Changsha, Hunan China

Li Jianming, Qiu Zhengqiu, Duan Rongbin, Peng Lianghu, Wang Jianshan

Abstract:

The amine FGD process produces a significant amount of SO42, which rapidly cumulates in the amine desulfurization solution. Authors compare three types of desalination methods: chemical precipitation, ion exchange and cooling crystallization.

Experimental results show that: Chemical precipitation method can remove 68.51% SO42-, while 97.46% SO32- is separated, Cooling crystallization method, SO42- removal rate can reach 86.45% at 7¡æ when the molar of Na+ and SO42-ratio is 1.61. Ion exchange method cannot effectively remove SO42- from high concentration solution, but considerable Cl- and NO3- is adsorbed by the resin, Cooling crystallization combined with ion exchange resins method can effectively remove SO42-, Cl-, NO3-and other HSS, obviously better than single ion exchange method.

Full Text Source (Subscription or Fee): http://www.computer.org/portal/web/csdl/doi/10.1109/CDCIEM.2011.262