| 摘要 |
A filter element for separating a water from a petroleum-based fluid, the filter element having a hollow, fluid permeable porous support structure, a fluid permeable first ceramic coating positioned adjacent to the support structure, and a fluid permeable second ceramic coating positioned adjacent to the fluid permeable first ceramic coating, and a thin film of dry petroleum-based fluid, wherein the thin film of dry petroleum-based fluid substantially coats the filter element and permeates the fluid permeable porous support structure, the fluid permeable first ceramic coating, and the fluid permeable second ceramic coating, the dry petroleum-based fluid having a water content of approximately 100 ppm or less.
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