发明名称 |
Method for analyzing impurities in carbon dioxide |
摘要 |
This invention relates to methods and systems for detecting contaminants that can precipitate and deposit on a workpiece during a carbon dioxide application, especially contaminants that are already present and dissolved in the fresh carbon dioxide fed to the application. One aspect of this invention includes a method of detecting contaminants dissolved in a carbon dioxide stream, including the steps of sampling at least a portion of the carbon dioxide stream to form a carbon dioxide sample; modifying at least one physical condition of the carbon dioxide sample to form an aerosol that includes gaseous carbon dioxide and at least one suspended contaminant; and detecting the number of particles of suspended contaminant in at least a portion of the carbon dioxide sample with at least one particle counter. A system for continuously detecting contaminants dissolved in a carbon dioxide stream is also described. |
申请公布号 |
US2003197852(A1) |
申请公布日期 |
2003.10.23 |
申请号 |
US20030350307 |
申请日期 |
2003.01.22 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
JOHNSON MICHAEL CLINTON;HEIM CARL JOSEPH;BILLINGHAM JOHN FREDRIC;MALCZEWSKI MARK LEONARD |
分类号 |
B01D15/00;C01B31/20;F25J3/08;G01N1/22;G01N1/40;G01N1/42;G01N15/04;G01N15/06;G01N33/00;(IPC1-7):G01N1/00 |
主分类号 |
B01D15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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