发明名称 |
Rapid determination of sludge content and device therefor. |
摘要 |
<p>A method for determining a sludge content in a heavy hydrocarbon oil and a device therefor are disclosed. The method comprises measuring absorbances of a heavy hydrocarbon oil sample, having an oil film thickness selected form a range of from about 0.01 to 5 mm, at two different wavelengths selected from the visible light region of from 500 to 1000 nm and determining a sludge content of the sample oil by comparing two measured absorbances according to the relationship between known sludge contents and absorbances at the two wavelengths. The device comprises a light source (2), a cell (10) for a sample oil, a two-wavelength absorbance detector (1) containing two interference filters (3) and two light-current transducers (4), and a computing means (16) for converting the current values obtained into a sludge content. The method and device provide a means for rapid and precise determination of sludge contents in heavy hydrocarbon oils.</p> |
申请公布号 |
EP0346609(A2) |
申请公布日期 |
1989.12.20 |
申请号 |
EP19890108318 |
申请日期 |
1989.05.09 |
申请人 |
COSMO OIL COMPANY, LTD |
发明人 |
YAMAZOE, SEIGO;NAKAI, SADAO;FUKUI, YUKIMASA |
分类号 |
G01N21/27;G01N15/00;G01N15/06;G01N21/31;G01N21/85;G01N33/28 |
主分类号 |
G01N21/27 |
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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