水溶液からアンモニア及び二酸化炭素を分離する方法
- 专利权人:
- 发明人:
- 申请号：
- JP20120528281
- 公开号：
- JP5753170(B2)
- 申请日:
- 2010.09.01
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
The present invention relates to a method for contemporaneously recovering ammonia and carbon dioxide from an aqueous solution thereof, possibly comprising their condensates, in a synthesis process of urea, characterized in that it comprises a hydrophobic microporous membrane distillation phase of an aqueous solution comprising ammonia, carbon dioxide and their saline compounds or condensates, said distillation being carried out at a temperature ranging from 50 to 250° C. and a pressure ranging from 50 KPa to 20 MPa absolute, with the formation of a residual aqueous solution, possibly comprising urea, and a gaseous permeate stream, comprising ammonia, carbon dioxide and water. The present invention also relates to an apparatus for effecting the above method and a production process of urea which comprises the above method.
- 来源网站：
- 中国工程科技知识中心
