An experimental study of solar thermal vacuum membrane distillation desalination

2014 ◽  
pp. 1-11 ◽  
Author(s):  
Yongqing Wang ◽  
Zhilong Xu ◽  
Noam Lior ◽  
Hui Zeng
Keyword(s):  
Experimental Study ◽  
Membrane Distillation ◽  
Solar Thermal ◽  
Thermal Vacuum ◽  
Vacuum Membrane Distillation

Experimental Study on MDEA Regeneration by Vacuum Membrane Distillation

2013 ◽  
Vol 726-731 ◽  
pp. 2691-2694
Author(s):  
Shi Dong Zhou ◽  
Shuang Shuang He ◽  
Zhi Min Wu ◽  
Shu Li Wang
Keyword(s):  
Experimental Study ◽  
Aqueous Solutions ◽  
Membrane Distillation ◽  
Solution Temperature ◽  
Waste Solution ◽  
Experimental Conditions ◽  
Vacuum Membrane Distillation ◽  
Regeneration Efficiency

Aqueous solutions of N-methyldiethanolamine (MDEA) are widely used in the sweetening process of sour gases, but the solutions deteriorate due to the contamination in their use process, and the deficiencies of the technologies for the regeneration of disabled solution restrict their development. A vacuum membrane distillation (VMD) technique for the regeneration of MDEA solutions was proposed and experimentally investigated.It is studied the effect of change in solution temperature on its regeneration efficiency and the distillation flux. From the chromatograms it is known that the best temperature for regenerating waste solution by VMD is 70 °C,and the regeneration efficiency can be up to 98% at this experimental conditions.

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